CN103152668B - Adjusting method of output audio and system thereof - Google Patents
Adjusting method of output audio and system thereof Download PDFInfo
- Publication number
- CN103152668B CN103152668B CN201210563052.0A CN201210563052A CN103152668B CN 103152668 B CN103152668 B CN 103152668B CN 201210563052 A CN201210563052 A CN 201210563052A CN 103152668 B CN103152668 B CN 103152668B
- Authority
- CN
- China
- Prior art keywords
- frequency
- volume
- output audio
- sound
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000007613 environmental effect Effects 0.000 claims abstract description 88
- 230000003750 conditioning effect Effects 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/307—Frequency adjustment, e.g. tone control
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
The invention provides an adjusting method of an output audio and a system of the output audio. The adjusting method of the output audio comprises the following steps: obtaining the frequency of the current environmental sound and the frequency of the current output audio; judging whether the difference value of the frequency of the output audio and the frequency of the environmental sound is smaller than a preset threshold; and improving the frequency of the output audio when the difference value of the frequency of the output audio and the frequency of the environmental sound is smaller than the preset threshold. The adjusting method of the output audio and the system of the output audio have the advantages of being capable of automatically adjusting the output audio frequency according to environmental noise, enabling a user to clearly hearing the content of the output audio frequency as much as possible in various using environments, and being free of manually adjusting audio output in the process of audio/video playing.
Description
Technical Field
The present invention relates to the field of audio adjustment technologies, and in particular, to an output audio adjustment method and an output audio adjustment system.
Background
In the process of audio and video playing, a large amount of noise exists in the surrounding environment, and when the environmental noise is large, the volume of the audio output is required to be adjusted to be large manually, so that the played audio content can be still clearly heard under the high environmental noise.
However, it is inconvenient for the user to adjust the volume manually, and in some use cases, since the frequency of the ambient sound is higher than that of the output audio itself, and the high frequency sound is sharper than the low frequency sound, and the human ear is more sensitive to the sharper sound than to the deep sound, even if the volume of the output audio is adjusted to be higher than the ambient sound, only the ambient noise may be heard, and the content of the output audio cannot be clearly heard.
Disclosure of Invention
In view of the above-mentioned problems in the prior art, an object of the present invention is to provide an output audio adjusting method and system, which can automatically adjust the output audio according to the environmental noise, so that the user can hear the content of the output audio as clearly as possible in various using environments.
An output audio adjustment method comprising the steps of:
acquiring the frequency of current environmental sound and the frequency of current output audio; the step of obtaining the frequency of the current environmental sound comprises the following steps: respectively acquiring the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sounds; the frequency of the current ambient sound is calculated according to the following formula: f ═ F1 × a1/(a1+ a2 +; + Am) + F2 × a2/(a1+ a2 +; + Am) +. + Fm × Am/(a1+ a2 +; + Am))/m; wherein f is the calculated frequency of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound;
judging whether the difference value of the frequencies of the output audio and the environmental sound is smaller than a preset threshold value or not;
and if the frequency of the output audio is smaller than the preset threshold value, increasing the frequency of the output audio.
An output audio conditioning system comprising:
the frequency acquisition module is used for acquiring the frequency of the current environmental sound and the frequency of the current output audio;
the frequency judging module is used for judging whether the difference value of the frequencies of the output audio and the environmental sound is smaller than a preset threshold value or not;
the frequency adjusting module is used for increasing the frequency of the output audio when the judgment result is smaller than the preset threshold;
the frequency obtaining module comprises a frequency operation obtaining submodule and a frequency operation obtaining submodule, wherein the frequency operation obtaining submodule is used for respectively obtaining the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sounds, and the frequency of the current environment sound is calculated according to the following formula: f ═ F1 × a1/(a1+ a2 +; + Am) + F2 × a2/(a1+ a2 +; + Am) +. + Fm × Am/(a1+ a2 +; + Am))/m; wherein f is the calculated frequency of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
According to the output audio adjusting method and the system thereof, the frequency of the current environmental sound and the frequency of the output audio are obtained through real-time detection, the frequency of the current environmental sound and the frequency of the output audio are compared, and when the difference value of the frequency of the output audio and the frequency of the environmental sound is smaller than the preset threshold value, the frequency of the output audio is improved, so that a user can clearly hear the content of the output audio under different environmental sounds.
Drawings
FIG. 1 is a schematic flow chart diagram of a first embodiment of an output audio conditioning method of the present invention;
FIG. 2 is a flow chart illustrating a second embodiment of the output audio conditioning method of the present invention;
FIG. 3 is a schematic block diagram of a first embodiment of an output audio conditioning system of the present invention;
fig. 4 is a schematic diagram of the structure of a second embodiment of the output audio conditioning system of the present invention.
Detailed Description
Referring to fig. 1, fig. 1 is a flowchart illustrating an output audio adjusting method according to a first embodiment of the present invention.
The output audio adjusting method comprises the following steps:
s101, acquiring the frequency of current environmental sound and the frequency of current output audio;
s102, judging whether the difference value of the frequency of the output audio and the frequency of the environmental sound is smaller than a preset threshold value or not;
s103, if the frequency is smaller than the preset threshold value, the frequency of the output audio is increased.
Wherein, for step S101, the frequency and volume of the environmental sound can be measured in real time by the sound sensor. The frequency and the volume of the output audio can be measured in real time through a sound sensor, and can also be obtained through reading related parameters of the output audio in audio and video data.
In particular, since the ambient sound may include noise of a plurality of different frequencies, the frequency of the ambient sound may be determined in any one of the following manners, but is not limited to the following manners:
the first mode is as follows: acquiring the frequency of the environmental sound with the highest frequency as the frequency of the current environmental sound; in this aspect, the highest-frequency ambient sound component is used as the frequency of the current ambient sound, so that the listening interference of the highest-frequency ambient sound on the output audio can be prevented, the frequency difference between the output audio and the ambient sound can be increased to the maximum extent, and the output audio can be made more prominent.
The second way is: acquiring the average frequency value of all the environmental sounds as the frequency of the current environmental sound; the frequency average value of the environmental sound is the frequency average value of all components with different frequencies contained in the environmental sound.
The third mode is as follows: respectively obtaining the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sound, and calculating the frequency of the current environment sound according to the following formula: f ═ F1 × a1/(a1+ a2 +; + Am) + F2 × a2/(a1+ a2 +; + Am) +. + Fm × Am/(a1+ a2 +; + Am))/m; wherein f is the calculated frequency of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
In the third method, the influence of the volume and the frequency of each component of all different frequencies contained in the environmental sound is considered, and the influence of the component with the large volume on the operation result f is also large, so that the influence of the frequency of the current environmental sound obtained by calculation in this way on the listening of the output audio can be reflected most truly.
In step S102, the frequency of the output audio is compared with the frequency of the acquired environmental sound, a difference between the frequencies is calculated, and whether the difference is smaller than a preset threshold is determined. The preset threshold value should be the minimum value allowed between the frequency of the output audio and the frequency of the environmental sound, and may be set to a positive number or a negative number as needed.
If the difference is smaller than the preset threshold value, it indicates that the frequency of the output audio is too low, step S103 needs to be executed to automatically adjust the frequency of the output audio; otherwise, the frequency of the output audio is high enough, and the step S103 is not executed, and the steps S101 and S102 are returned to, and the ambient sound and the frequency of the output audio are obtained again for comparison.
In step S103, the frequency of the output audio is adjusted. The frequency of the output audio may be increased in various ways, for example, by setting a frequency modulator on an output channel of the output audio to increase the output frequency. During frequency adjustment, the frequency of the output audio frequency can be increased by a preset value or several times.
In a preferred embodiment, the frequency of the output audio is adjusted according to the frequency of the environmental sound and a preset optimal frequency difference value, wherein the preset optimal frequency difference value can be specifically set according to different needs, preferably the sound frequency difference which enables the human ear hearing effect to be optimal, and can be set by referring to known physiological knowledge or determined according to an optimal hearing effect experience knowledge base table. While, when adjusting the frequency of the output audio, one of the following methods may be adopted, but not limited to:
the first method is to directly adjust the frequency of the output audio to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value;
judging whether the sum of the difference value of the frequency of the environmental sound and a preset optimal frequency is greater than a preset maximum frequency value or not; adjusting the frequency of the output audio to equal the frequency maximum if greater than the frequency maximum; otherwise, adjusting the frequency of the output audio to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value.
The two modes can keep the sound frequency difference with the best human ear auditory effect between the frequency of the output audio and the frequency of the environmental sound, so that the user can better listen to the content of the output audio. The second method sets the maximum frequency value, when the frequency of the environment audio is ultrahigh, the frequency of the output audio is not increased without limit, the phenomenon that the frequency of the output audio is overhigh and becomes harsh is prevented, and the listening requirement of a general user is met.
In particular, when the above method is adopted to adjust the frequency of the output audio, one of the sub-audio components in the plurality of sub-audios included in the output audio may be selected as a reference, so as to adjust the frequencies of all the sub-audios included in the output audio. The following methods can be specifically adopted:
adjusting the frequency of the sub audio frequency with the highest frequency contained in the output audio frequency to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value when the frequency of the output audio frequency is adjusted to be equal to the sum of the frequency of the environmental sound and the preset optimal frequency difference value; acquiring the frequency adjustment amplitude of the sub audio frequency with the highest frequency; adjusting the frequencies of all sub-audios contained in the output audio according to the frequency adjustment amplitude;
adjusting a frequency of a sub audio having a highest frequency included in the output audio to be equal to the frequency maximum value when adjusting the frequency of the output audio to be equal to the frequency maximum value; acquiring the frequency adjustment amplitude of the sub audio frequency with the highest frequency; and adjusting the frequencies of all sub-audios contained in the output audio according to the frequency adjustment amplitude.
The output audio adjusting method can determine and automatically adjust the sound frequency of the output audio according to the sound frequency of the environmental sound of the audience, so that a user does not need to manually adjust the sound of the audio and the video, and a better auditory effect is obtained.
Referring to fig. 2, fig. 2 is a flowchart illustrating an output audio adjusting method according to a second embodiment of the present invention.
The output audio adjusting method of the second embodiment is different from the first embodiment mainly in that it further includes the steps of:
s104, acquiring the volume value of the current environmental sound and the volume value of the current output audio;
s105, judging whether the difference value of the volume values of the output audio and the environment sound is smaller than a preset threshold value or not;
and S106, if the output audio volume is smaller than the preset threshold value, increasing the volume of the output audio.
For step S104, the volume of the environmental sound may be determined in any one of the following manners, but is not limited to the following manners:
the first mode is as follows: and acquiring the volume value of the environmental sound with the highest frequency as the volume value of the current environmental sound. The environment sound component with the highest volume is used as the volume of the current environment sound, so that the listening interference of the environment sound with the highest volume to the output audio can be prevented, the volume difference between the output audio and the environment sound is improved to the maximum extent, and the output audio is more prominent.
The second way is: and acquiring the volume average value of all the environment sounds as the volume value of the current environment sound. The volume average value of the ambient sound is the volume average value of all components with different frequencies included in the ambient sound.
The third mode is as follows: respectively obtaining the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sound, and calculating the volume value of the current environment sound according to the following formula: a ═ F1 ═ F1/(F1+ F2+. + Fm) + a2 × F2/(F1+ F2+. + Fm) +. Am · Fm/(F1+ F2+. + Fm))/m; wherein, a is the calculated volume value of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
In the third method, the influence of the volume and the frequency size of each component of all different frequencies contained in the environmental sound is considered, and the influence of the component with high frequency on the operation result a is also large, so that the volume of the current environmental sound calculated and obtained by the method can most truly reflect the influence of the volume of the environmental sound on the listening of the output audio.
In step S105, the volume of the output audio is compared with the frequency of the acquired environmental sound, a difference between the volume of the output audio and the frequency of the acquired environmental sound is calculated, and whether the difference is smaller than a preset threshold is determined. The preset threshold value should be the minimum value allowed between the volume of the output audio and the volume of the ambient sound, and may be set to a positive number or a negative number as needed.
If the difference is smaller than the preset threshold value, it indicates that the volume of the output audio is too low, step S106 needs to be executed to automatically adjust the volume of the output audio; otherwise, the volume of the output audio is already high enough, and the step S106 is not executed, and the process returns to the steps S104 and S105 to re-acquire the ambient sound and compare the volume of the output audio.
In step S106, the volume of the output audio is adjusted. The output audio volume can be increased in various ways, for example, a power amplifier on an output channel of the output audio is set, and the amplification factor of the output frequency is increased. When the volume is adjusted, the volume of the output audio can be increased by a preset value or several times.
In a preferred embodiment, the volume of the output audio is adjusted according to the volume of the environmental sound and a preset optimal volume difference, wherein the preset optimal volume difference can be specifically set according to different needs, preferably the volume difference which enables the human ear hearing effect to be optimal, and can be set by referring to known physiological knowledge or judged according to an optimal hearing effect experience knowledge base table. Then when adjusting the volume of the output audio, one of the following methods may be taken, but not limited to:
the first method is to directly adjust the volume of the output audio to be equal to the sum of the volume of the environment sound and a preset optimal volume difference;
judging whether the sum of the volume of the environmental sound and a preset optimal volume difference value is larger than a preset maximum volume value or not; if the volume is greater than the volume maximum, adjusting the volume of the output audio to be equal to the volume maximum; otherwise, adjusting the volume of the output audio to be equal to the sum of the volume of the environment sound and a preset optimal volume difference value.
The two modes can ensure that the sound volume difference with the best auditory effect of human ears is kept between the volume of the output audio and the volume of the environmental sound, so that a user can better listen to the content of the output audio. The second method sets the maximum value of the volume, when the volume of the environment sound is ultrahigh, the volume of the output audio is not increased without limit, the phenomenon that the volume of the output audio is overhigh and becomes harsh is prevented, and the listening requirement of a general user is met.
The output audio adjusting method can determine and automatically adjust the sound frequency and the volume of the output audio according to the sound frequency and the volume of the environmental sound of the audience, so that a user does not need to manually adjust the sound frequency and the volume of the audio and the video, and a better auditory effect is obtained.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an output audio conditioning system according to a first embodiment of the present invention.
The output audio conditioning system includes:
a frequency obtaining module 11, configured to obtain a frequency of a current environmental sound and a frequency of a current output audio;
a frequency discrimination module 12, configured to determine whether a difference between the frequencies of the output audio and the environmental sound is smaller than a preset threshold;
and the frequency adjusting module 13 is configured to increase the frequency of the output audio when the determination result is smaller than the preset threshold.
The frequency obtaining module 11 may measure the frequency and the volume of the environmental sound in real time by controlling a sound sensor. The frequency and the volume of the output audio can be measured in real time through a sound sensor, and can also be obtained through reading the relevant parameters of the output audio in audio and video data.
Since the ambient sound may include noise of a plurality of different frequencies, the frequency acquisition module includes any one of the following sub-modules:
the highest frequency acquisition submodule is used for acquiring the frequency of the environment sound with the highest frequency as the frequency of the current environment sound;
the average frequency acquisition submodule is used for acquiring the average frequency of all the environmental sounds as the frequency of the current environmental sound;
the frequency operation obtaining submodule is used for respectively obtaining the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sounds, and calculating the frequency of the current environment sound according to the following formula: f ═ F1 × a1/(a1+ a2 +; + Am) + F2 × a2/(a1+ a2 +; + Am) +. + Fm × Am/(a1+ a2 +; + Am))/m; wherein f is the calculated frequency of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
The highest frequency obtaining submodule takes the environmental sound component with the highest frequency as the frequency of the current environmental sound, so that the listening interference of the environmental sound with the highest frequency on the output audio can be prevented, the frequency difference between the output audio and the environmental sound is improved to the maximum extent, and the output audio is more prominent.
The average frequency obtaining sub-module obtains the frequency average value of the environmental sound, that is, the frequency average value of all components with different frequencies contained in the environmental sound.
The frequency operation obtaining submodule considers the influence of the volume and the frequency of each component of all different frequencies contained in the environment sound, and the influence of the component with the large volume on the operation result f is also large, so that the frequency of the current environment sound obtained by calculation in the mode can reflect the influence of the frequency of the environment sound on the listening of the output audio most really.
The frequency discrimination module 12 compares the frequency of the output audio with the frequency of the acquired environmental sound, calculates a difference value thereof, and determines whether the difference value is smaller than a preset threshold value. The preset threshold value should be the minimum value allowed between the frequency of the output audio and the frequency of the environmental sound, and may be set to a positive number or a negative number as needed.
If the difference is smaller than a preset threshold value, the frequency of the output audio is too low, and the frequency of the output audio needs to be automatically adjusted; otherwise, the frequency of the output audio is itself high enough that no adjustment is necessary.
The frequency adjustment module 13 adjusts the frequency of the output audio. The frequency of the output audio may be increased in various ways, for example, by setting a frequency modulator on an output channel of the output audio to increase the output frequency. During frequency adjustment, the frequency of the output audio frequency can be increased by a preset value or several times.
In a preferred embodiment, the frequency adjusting module 13 adjusts the frequency of the output audio according to the frequency of the environmental sound and a preset optimal frequency difference value, wherein the preset optimal frequency difference value may be specifically set according to different needs, preferably a sound frequency difference that optimizes the auditory effect of human ears, and may be set by referring to known physiological knowledge or determined according to an empirical knowledge base table of optimal auditory effect.
The frequency adjustment module 13 includes any one of the following sub-modules:
a first frequency adjustment submodule for adjusting the frequency of the output audio frequency to be equal to the sum of the frequency of the ambient sound and a preset optimal frequency difference value;
the second frequency adjusting submodule is used for judging whether the sum of the frequency of the environmental sound and the difference value of the preset optimal frequency is greater than the preset maximum frequency value or not; adjusting the frequency of the output audio to equal the frequency maximum if greater than the frequency maximum; otherwise, adjusting the frequency of the output audio to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value.
The first and second frequency adjustment sub-modules can maintain the sound frequency difference with the best human ear auditory effect between the frequency of the output audio and the frequency of the environment sound, so that the user can better listen to the content of the output audio. The second frequency adjusting submodule sets the maximum frequency value, so that the frequency of the output audio is not increased without limit when the frequency of the environment audio is ultrahigh, the phenomenon that the frequency of the output audio is overhigh and becomes harsh is prevented, and the listening requirement of a general user is met.
In particular, when the frequency of the output audio is to be adjusted, one of the sub-audio components in the plurality of sub-audios included in the output audio may be selected as a reference, so as to adjust the frequencies of all the sub-audios included in the output audio. Then:
when the frequency of the output audio is adjusted to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value, the first frequency adjusting submodule and the second frequency adjusting submodule adjust the frequency of the sub audio with the highest frequency contained in the output audio to be equal to the sum of the frequency of the environmental sound and the preset optimal frequency difference value; acquiring the frequency adjustment amplitude of the sub audio frequency with the highest frequency; adjusting the frequencies of all sub-audios contained in the output audio according to the frequency adjustment amplitude;
the second frequency adjustment sub-module adjusts the frequency of the sub-audio with the highest frequency contained in the output audio to be equal to the frequency maximum value when adjusting the frequency of the output audio to be equal to the frequency maximum value; acquiring the frequency adjustment amplitude of the sub audio frequency with the highest frequency; and adjusting the frequencies of all sub-audios contained in the output audio according to the frequency adjustment amplitude.
The output audio frequency adjusting system can determine and automatically adjust the sound frequency of the output audio according to the sound frequency of the environmental sound of the audience, so that a user does not need to manually adjust the sound of the audio and video to obtain better auditory effect.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an output audio conditioning system according to a second embodiment of the present invention.
The output audio conditioning system of the second embodiment differs from the first embodiment mainly in that it further comprises:
a volume obtaining module 14, configured to obtain a volume value of the current environmental sound and a volume value of the current output audio;
a volume judging module 15, configured to judge whether a difference between the volume values of the output audio and the environmental sound is smaller than a preset threshold;
and the volume adjusting module 16 is configured to increase the volume of the output audio when the determination result is smaller than the preset threshold.
The volume obtaining module 14 includes any one of the following sub-modules:
the highest volume obtaining submodule is used for obtaining the volume value of the environment sound with the highest volume as the volume of the current environment sound;
the average volume obtaining submodule is used for obtaining the average volume of all the environment sounds as the volume of the current environment sound;
the volume operation obtaining submodule is used for respectively obtaining the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sounds, and calculating the volume value of the current environment sound according to the following formula: a ═ F1 ═ F1/(F1+ F2+. + Fm) + a2 × F2/(F1+ F2+. + Fm) +. Am · Fm/(F1+ F2+. + Fm))/m; wherein, a is the calculated volume value of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
The highest volume obtaining submodule takes the environment sound component with the highest volume as the volume of the current environment sound, so that the environment sound with the highest volume can be prevented from listening to the output audio, the volume difference between the output audio and the environment sound is improved to the maximum extent, and the output audio is more prominent.
The average volume obtaining sub-module obtains the volume average value of the environment sound, that is, the volume average value of all components with different frequencies contained in the environment sound.
The volume operation obtaining submodule considers the volume and the influence of the frequency of each component of all different frequencies contained in the environment sound, and the influence of the component with the large frequency on the operation result a is large, so that the volume of the current environment sound obtained by calculation in the mode can reflect the influence of the volume of the environment sound on the listening of the output audio most really.
The volume discrimination module 15 compares the volume of the output audio with the volume of the acquired environmental sound, calculates a difference value therebetween, and determines whether the difference value is smaller than a preset threshold value. The preset threshold value should be the minimum value allowed between the frequency of the output audio and the volume of the environmental sound, and may be set to a positive number or a negative number as needed.
If the difference is smaller than a preset threshold value, the volume of the output audio is low, and the volume of the output audio needs to be automatically adjusted; otherwise, the volume of the output audio is itself high enough that no adjustment is necessary.
The volume adjustment module 16 adjusts the volume of the output audio. The volume of the output audio may be increased in various ways, for example, a power amplifier on an output channel of the output audio is set to increase the power amplification factor of the output audio. When the volume is adjusted, the volume of the output audio can be increased by a preset value or several times.
In a preferred embodiment, the volume adjusting module 16 adjusts the volume of the output audio according to the volume of the environmental sound and a preset optimal volume difference, where the preset optimal volume difference may be specifically set according to different needs, preferably, the sound volume difference is a sound volume difference that optimizes the auditory effect of human ears, and may be set by referring to known physiological knowledge or determined according to an empirical knowledge base table of optimal auditory effect.
The volume adjusting module 16 includes any one of the following sub-modules:
the first volume adjusting submodule is used for adjusting the volume of the output audio to be equal to the sum of the volume of the environment sound and a preset optimal volume difference;
the second volume adjusting submodule is used for judging whether the sum of the volume of the environment sound and a preset optimal volume difference value is larger than a preset volume maximum value or not; if the volume is greater than the volume maximum, adjusting the volume of the output audio to be equal to the volume maximum; otherwise, adjusting the volume of the output audio to be equal to the sum of the volume of the environment sound and a preset optimal volume difference value.
The first volume adjusting submodule and the second volume adjusting submodule can keep the volume difference with the best human ear hearing effect between the volume of the output audio and the volume of the environment sound, so that a user can better listen to the content of the output audio. The second volume adjusting submodule does not increase the volume of the output audio without limit by setting the maximum volume value when the volume of the environmental sound is ultrahigh, so that the situation that the volume of the output audio is overhigh and becomes harsh is prevented, and the listening requirement of a general user is better met.
In particular, when the volume of the output audio is to be adjusted, one of the sub-audio components in the plurality of sub-audios included in the output audio may be selected as a reference, so as to adjust the volume of all the sub-audios included in the output audio. Then:
when the volume of the output audio is adjusted to be equal to the sum of the volume of the environment sound and a preset optimal volume difference value, the first volume adjusting submodule and the second volume adjusting submodule adjust the volume of the sub audio with the highest volume contained in the output audio to be equal to the sum of the volume of the environment sound and the preset optimal volume difference value; acquiring the volume adjustment amplitude of the sub audio with the highest volume; adjusting the volume of all sub-audios contained in the output audio according to the volume adjustment amplitude;
the second volume adjusting submodule adjusts the volume of the sub audio with the highest volume contained in the output audio to be equal to the maximum volume value when the volume of the output audio is adjusted to be equal to the maximum volume value; acquiring the volume adjustment amplitude of the sub audio with the highest volume; and adjusting the volume of all sub-audios contained in the output audio according to the volume adjustment amplitude.
The output audio adjusting system can determine and automatically adjust the sound frequency and the volume of the output audio according to the sound frequency and the volume of the environmental sound of the audience, so that a user does not need to manually adjust the sound of the audio and the video, and a better auditory effect is obtained.
It will be understood by those skilled in the art that all or part of the processes and corresponding systems of the above embodiments may be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the above embodiments. The storage medium may be a magnetic disk, an optical disk, a Read-only Memory (ROM), a Random Access Memory (RAM), or the like.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. An output audio adjusting method, comprising the steps of:
acquiring the frequency of current environmental sound and the frequency of current output audio; the step of obtaining the frequency of the current environmental sound comprises the following steps: respectively acquiring the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sounds; the frequency of the current ambient sound is calculated according to the following formula: f ═ F1 × a1/(a1+ a2 +; + Am) + F2 × a2/(a1+ a2 +; + Am) +. + Fm × Am/(a1+ a2 +; + Am))/m; wherein f is the calculated frequency of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound;
judging whether the difference value of the frequencies of the output audio and the environmental sound is smaller than a preset threshold value or not;
and if the frequency of the output audio is smaller than the preset threshold value, increasing the frequency of the output audio.
2. The output audio conditioning method of claim 1, characterized in that the frequency of the output audio is increased by any one of the following:
adjusting the frequency of the output audio frequency to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value;
or,
judging whether the sum of the frequency of the environmental sound and a preset optimal frequency difference value is greater than a preset maximum frequency value or not; adjusting the frequency of the output audio to equal the frequency maximum if greater than the frequency maximum; otherwise, adjusting the frequency of the output audio to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value.
3. The output audio conditioning method of any of claims 1 to 2, further comprising the steps of:
acquiring the volume value of the current environment sound and the volume value of the current output audio;
judging whether the difference value of the volume values of the output audio and the environment sound is smaller than a preset threshold value or not;
and if the volume value is smaller than the preset threshold value, adjusting the volume of the output audio according to the volume value of the environment sound and a preset optimal volume difference value.
4. The output audio adjusting method according to claim 3, wherein the volume value of the current environmental sound is obtained by any one of:
acquiring the volume value of the environment sound with the highest volume as the volume value of the current environment sound;
or, acquiring the volume average value of all the environment sounds as the volume value of the current environment sound;
or respectively acquiring the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sound, and calculating the volume value of the current environment sound according to the following formula: a ═ F1 ═ F1/(F1+ F2+. + Fm) + a2 × F2/(F1+ F2+. + Fm) +. Am · Fm/(F1+ F2+. + Fm))/m; wherein, a is the calculated volume value of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
5. An output audio conditioning system, comprising:
the frequency acquisition module is used for acquiring the frequency of the current environmental sound and the frequency of the current output audio;
the frequency judging module is used for judging whether the difference value of the frequencies of the output audio and the environmental sound is smaller than a preset threshold value or not;
the frequency adjusting module is used for increasing the frequency of the output audio when the judgment result is smaller than the preset threshold;
the frequency obtaining module comprises a frequency operation obtaining submodule and a frequency operation obtaining submodule, wherein the frequency operation obtaining submodule is used for respectively obtaining the frequency and the volume of all sub-environment sounds with different frequencies contained in the environment sounds, and the frequency of the current environment sound is calculated according to the following formula: f ═ F1 × a1/(a1+ a2 +; + Am) + F2 × a2/(a1+ a2 +; + Am) +. + Fm × Am/(a1+ a2 +; + Am))/m; wherein f is the calculated frequency of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
6. The output audio conditioning system of claim 5, wherein the frequency conditioning module comprises any one of the following sub-modules:
a first frequency adjustment submodule for adjusting the frequency of the output audio frequency to be equal to the sum of the frequency of the ambient sound and a preset optimal frequency difference value;
or, the second frequency adjustment submodule is used for judging whether the sum of the frequency of the environmental sound and a preset optimal frequency difference value is greater than a preset frequency maximum value or not; adjusting the frequency of the output audio to equal the frequency maximum if greater than the frequency maximum; otherwise, adjusting the frequency of the output audio to be equal to the sum of the frequency of the environmental sound and a preset optimal frequency difference value.
7. The output audio conditioning system of any of claims 5 to 6, further comprising:
the volume acquisition module is used for acquiring the volume value of the current environmental sound and the volume value of the current output audio;
the volume judging module is used for judging whether the difference value of the volume values of the output audio and the environment sound is smaller than a preset threshold value or not;
and the volume adjusting module is used for adjusting the volume of the output audio according to the volume value of the environment sound and a preset optimal volume difference value when the judgment result is that the volume is smaller than the preset threshold value.
8. The output audio conditioning system of claim 7, wherein the volume acquisition module comprises any one of the following sub-modules:
the highest volume obtaining submodule is used for obtaining the volume value of the environment sound with the highest volume as the volume value of the current environment sound;
the average volume obtaining submodule is used for obtaining the volume average value of all the environment sounds as the volume value of the current environment sound;
or, the volume operation obtaining submodule is configured to obtain the frequencies and volumes of all sub-ambient sounds with different frequencies included in the ambient sound, and calculate the volume value of the current ambient sound according to the following formula: a ═ F1 ═ F1/(F1+ F2+. + Fm) + a2 × F2/(F1+ F2+. + Fm) +. Am · Fm/(F1+ F2+. + Fm))/m; wherein, a is the calculated volume value of the current environment sound, and m is the number of the sub-environment sounds with different frequencies; fm is the frequency of the mth sub-environment sound, and Am volume is the volume of the mth sub-environment sound.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563052.0A CN103152668B (en) | 2012-12-22 | 2012-12-22 | Adjusting method of output audio and system thereof |
| PCT/CN2013/085759 WO2014094496A1 (en) | 2012-12-22 | 2013-10-23 | Audio output adjustment method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563052.0A CN103152668B (en) | 2012-12-22 | 2012-12-22 | Adjusting method of output audio and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103152668A CN103152668A (en) | 2013-06-12 |
| CN103152668B true CN103152668B (en) | 2015-03-11 |
Family
ID=48550494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210563052.0A Active CN103152668B (en) | 2012-12-22 | 2012-12-22 | Adjusting method of output audio and system thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103152668B (en) |
| WO (1) | WO2014094496A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105991810A (en) * | 2015-04-16 | 2016-10-05 | 乐视移动智能信息技术（北京）有限公司 | Volume adjustment method, volume adjustment device and mobile terminal |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152668B (en) * | 2012-12-22 | 2015-03-11 | 深圳先进技术研究院 | Adjusting method of output audio and system thereof |
| KR20140086265A (en) * | 2012-12-28 | 2014-07-08 | 전자부품연구원 | Audio Clear Control Method and Audio output System using the same |
| CN104468930B (en) * | 2013-09-17 | 2018-08-31 | 南京中兴软件有限责任公司 | A kind of playback loudness method of adjustment and device |
| CN105281693A (en) * | 2014-06-26 | 2016-01-27 | 美的集团股份有限公司 | Voice playing method and system |
| CN105469806B (en) * | 2014-09-12 | 2020-02-21 | 联想(北京)有限公司 | Sound processing method, device and system |
| CN105764002B (en) * | 2014-12-17 | 2019-10-01 | 南宁富桂精密工业有限公司 | Audio signal processing circuit |
| CN105592195B (en) * | 2016-01-20 | 2019-01-22 | 努比亚技术有限公司 | Volume adaptive regulation method and device |
| CN106226825A (en) * | 2016-07-15 | 2016-12-14 | 柳州国淘科技有限公司 | A kind of metal detecting device |
| CN106168681A (en) * | 2016-07-15 | 2016-11-30 | 柳州国淘科技有限公司 | A kind of metal detector with regulation warning volume |
| CN105974482A (en) * | 2016-07-15 | 2016-09-28 | 柳州国淘科技有限公司 | Metal detector with additional function |
| CN106339198B (en) * | 2016-08-19 | 2020-05-08 | 惠州Tcl移动通信有限公司 | Method and system for automatically adjusting volume of electronic equipment through environment volume |
| CN106411434A (en) * | 2016-09-28 | 2017-02-15 | 上海斐讯数据通信技术有限公司 | Broadcasting method and device and FM radio |
| CN107124149B (en) * | 2017-05-05 | 2020-12-01 | 北京小鱼在家科技有限公司 | Volume adjustment method, device and equipment |
| CN107547732A (en) * | 2017-07-05 | 2018-01-05 | 宇龙计算机通信科技(深圳)有限公司 | A kind of media play volume adjusting method, device, terminal and storage medium |
| CN109429142B (en) * | 2017-08-30 | 2021-05-25 | 上海三菱电梯有限公司 | Voice broadcasting system |
| CN110570875A (en) * | 2018-06-05 | 2019-12-13 | 塞舌尔商元鼎音讯股份有限公司 | Method for detecting environmental noise to change playing voice frequency and voice playing device |
| CN110648686B (en) * | 2018-06-27 | 2023-06-23 | 达发科技股份有限公司 | Method for adjusting voice frequency and sound playing device thereof |
| CN109195068A (en) * | 2018-09-09 | 2019-01-11 | 昊智信息技术（深圳）有限公司 | Audio-frequency processing method, device and audio frequency apparatus |
| CN113053404A (en) * | 2021-03-22 | 2021-06-29 | 三一重机有限公司 | Method and device for interaction between inside and outside of cab |
| CN113721882B (en) * | 2021-08-31 | 2024-08-30 | 广州朗国电子科技股份有限公司 | Advertisement sound playing control method, system, terminal and readable medium |
| CN114885256B (en) * | 2022-05-13 | 2024-10-29 | 福建慧捷通科技有限公司 | Method for automatically adjusting broadcasting volume according to use environment and money-collecting cloud sound box |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200910901A (en) * | 2007-08-28 | 2009-03-01 | Micro Star Int Co Ltd | Adjusting device and method of notification sound according to the environment |
| CN101997498A (en) * | 2009-08-27 | 2011-03-30 | 北京宏景捷讯网络技术股份有限公司 | Volume adjusting method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030179887A1 (en) * | 2002-03-19 | 2003-09-25 | Thomas Cronin | Automatic adjustments of audio alert characteristics of an alert device using ambient noise levels |
| CN101325406B (en) * | 2008-07-09 | 2012-01-04 | 华为终端有限公司 | Method and apparatus for automatically adjusting sound volume |
| CN103152668B (en) * | 2012-12-22 | 2015-03-11 | 深圳先进技术研究院 | Adjusting method of output audio and system thereof |
-
2012
- 2012-12-22 CN CN201210563052.0A patent/CN103152668B/en active Active
-
2013
- 2013-10-23 WO PCT/CN2013/085759 patent/WO2014094496A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200910901A (en) * | 2007-08-28 | 2009-03-01 | Micro Star Int Co Ltd | Adjusting device and method of notification sound according to the environment |
| CN101997498A (en) * | 2009-08-27 | 2011-03-30 | 北京宏景捷讯网络技术股份有限公司 | Volume adjusting method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105991810A (en) * | 2015-04-16 | 2016-10-05 | 乐视移动智能信息技术（北京）有限公司 | Volume adjustment method, volume adjustment device and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014094496A1 (en) | 2014-06-26 |
| CN103152668A (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103152668B (en) | Adjusting method of output audio and system thereof | |
| US8335324B2 (en) | Method and apparatus for automatic volume adjustment | |
| US20200133627A1 (en) | Active Acoustic Filter with Automatic Selection of Filter Parameters Based on Ambient Sound | |
| US9305568B2 (en) | Active acoustic filter with socially determined location-based filter characteristics | |
| JP5704470B2 (en) | Audio intelligibility increasing method and apparatus and computer apparatus | |
| CN112954115B (en) | Volume adjusting method and device, electronic equipment and storage medium | |
| CN109688498B (en) | Volume adjusting method, earphone and storage medium | |
| US8515087B2 (en) | Apparatus for processing an audio signal and method thereof | |
| EP2395659B1 (en) | Adaptive audio output | |
| KR102331233B1 (en) | Sports headphones with situational awareness | |
| US9787274B2 (en) | Automatic sound equalization device | |
| CN103177727B (en) | Audio frequency band processing method and system | |
| CN104978166A (en) | Volume adjusting method and device | |
| CN103746668A (en) | Sound volume control method and system | |
| JP2016131404A (en) | Acoustic device, sound volume control method, sound volume control program, and storage medium | |
| JP2016531324A (en) | Reproduction loudness adjustment method and apparatus | |
| CN107645696A (en) | One kind is uttered long and high-pitched sounds detection method and device | |
| WO2021103260A1 (en) | Control method for headphones and headphones | |
| CN107547732A (en) | A kind of media play volume adjusting method, device, terminal and storage medium | |
| CN106066782B (en) | A kind of data processing method and electronic equipment | |
| CN111669682A (en) | Method for optimizing sound quality of loudspeaker equipment | |
| KR20150049914A (en) | Earphone apparatus capable of outputting sound source optimized about hearing character of an individual | |
| US11579840B2 (en) | Method for adjusting sound playback and portable device thereof | |
| JP5531988B2 (en) | Volume control device, volume control method, and volume control program | |
| US20120084083A1 (en) | Method and apparatus for processing audio signal in a mobile communication terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191029 Address after: 214000 No. 1, science and Technology Industrial Park, Xishan Economic Development Zone, Wuxi, Jiangsu Patentee after: JIANGSU CASIC DAWAY TECHNOLOGY Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20191029 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 1068 No. 518055 Guangdong city in Shenzhen Province, Nanshan District City Xili University School Avenue Patentee before: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY |
|
| TR01 | Transfer of patent right |