CN101207879B - Method, terminal and system for automatically regulating sound - Google Patents

Abstract

Embodiments of the present invention relate to the communication field, and provide a method, terminal and system for automatically adjusting sound. After the terminal obtains the speed value of the terminal, the terminal adjusts the sound intensity according to the speed value. The technical solution provided by the embodiment of the present invention enables the terminal to automatically adjust the volume of the sound as the speed changes during the moving process, thereby improving the quality of the sound output by the terminal, improving the anti-interference ability, and improving the voice evaluation quality of the terminal user.

Description

Method, terminal and system for automatically adjusting sound

technical field

The invention relates to the communication field, in particular to a method, terminal and system for automatically adjusting sound in mobile communication.

Background technique

When the terminal is in a mobile state, such as when the terminal user is in a car or other means of transportation, the car system, engine, drive axle, tires, airflow and other factors are the main sources of noise, and the higher the speed of movement , the airflow noise and tire noise will be louder. There are three main sources of car noise, one is the noise generated by the car's mechanical parts itself, such as the engine and drive axle; one is the tires, and the other is the airflow noise (wind noise). These three sources do not emerge all at once, but appear sequentially as the speed of the car varies. The noise caused by the drive system is called the first type of noise, which is generally produced when the car is started, such as the running noise of the engine, and increases with the speed of the vehicle. When the speed of the vehicle increases to about 100 km/h, the noise of the tires increases, which is called the second type of noise. Both noises are progressively increasing. When the vehicle speed exceeds 100 km/h, as the vehicle speed increases, the wind noise will increase rapidly, which is called the third type of noise. After measurement, in the high-speed section of the car, the sound level of wind noise will be enhanced by the 5-7 power (power) of the vehicle speed, while the second type of noise will only be enhanced by the 3-4 power of the vehicle speed. When the speed of the car is about 120 km/h, the sound level of the rapidly increasing third-type noise is the same as that of the second-type noise. When the speed of the car continues to increase, the third-type noise will surpass other noises and become the main noise.

When the terminal is in a high-speed moving state, if the terminal still outputs sound with constant intensity as in the prior art, the sound output by the terminal will be greatly interfered by the increasing noise around it, which will seriously affect the sound quality output by the terminal. End-user voice review quality.

Contents of the invention

Embodiments of the present invention provide a method, a terminal and a system for automatically adjusting sound, which enable the terminal to automatically adjust the volume of the sound as the speed changes during the moving process.

In order to achieve the above purpose, an embodiment of the present invention provides a method for automatically adjusting the sound, including the steps: the terminal obtains the speed value of the terminal; the terminal determines the compensation amount that needs to be compensated for the sound intensity according to the relationship between the speed and the sound intensity; The terminal adjusts the operational amplifier of the volume control system according to the compensation amount to adjust the gain of the sound intensity.

The embodiment of the present invention also provides a terminal, and the terminal includes:

The speed value acquisition unit is used to obtain the speed value of the terminal; the voice adjustment unit is used to determine the compensation amount that needs to be compensated for the sound intensity according to the relationship between the speed and the sound intensity, and adjust the operational amplifier of the volume control system to adjust the sound intensity according to the compensation amount. gain.

The embodiment of the present invention also provides a system for automatically adjusting the sound, including: a base station, used to detect the speed value of the terminal, and send the speed value to the terminal; a terminal, used to receive the speed value, according to the speed value Increase, different sound spectrums increase the sound intensity according to the corresponding gain ratio; or according to the decrease of the speed value, different sound spectrums reduce the sound intensity according to the corresponding gain ratio.

The technical solution provided by the embodiment of the present invention enables the terminal to automatically adjust the volume of the sound as the speed changes during the movement process, thereby improving the quality of the sound output by the terminal, improving the anti-interference ability, and improving the quality of voice evaluation of the terminal user.

Description of drawings

Fig. 1 is a flow chart of a method for automatically adjusting sound provided by an embodiment of the present invention;

Fig. 2 is a flow chart of a method for automatically adjusting sound by acquiring a speed value from a base station according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of the relationship between noise intensity and motion speed provided by an embodiment of the present invention;

4 is a schematic diagram of the relationship between the compensation amount of the sound intensity and the movement speed using the method of automatically adjusting the sound provided by the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a system for automatically adjusting sound provided by an embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide a method, terminal and system for automatically adjusting sound, which can automatically receive the speed value of the terminal movement, and the terminal can automatically adjust the volume of the sound as the speed changes during the moving process.

The method, terminal and system for automatically adjusting sound provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 1 is a flow chart of a method for automatically adjusting sound provided by an embodiment of the present invention; referring to this figure, the method for automatically adjusting sound at a terminal includes steps:

11. The terminal obtains the speed value of the terminal;

12. The terminal adjusts the sound intensity according to the speed value.

In the embodiment of the present invention, the terminal obtains its own speed value including but not limited to the following methods:

(1), receiving the moving speed of the terminal measured by the network side sent by the network side;

(2) If the terminal itself has a positioning function, such as the terminal can use the airborne GPS positioning system to measure its own moving speed and obtain the speed value;

(3) The terminal can also obtain its moving speed from other systems, for example, the vehicle-mounted system can read the current moving speed of the car, so as to obtain the moving speed of the terminal itself.

In the embodiment of the present invention, the terminal adjusts the sound intensity according to the speed value after obtaining its own moving speed value. Specifically, the following methods can be used:

When the mobile speed of the terminal increases, the strength of the sound signal is increased according to different gain ratios for the sound spectrum from 0 to 20khz, or the strength of the sound signal is increased according to the same gain ratio; The spectrum reduces the intensity of the sound signal by a respective different gain ratio, or reduces the intensity of the sound signal by the same gain ratio.

The terminal can also determine the compensation amount that needs to be compensated for the sound intensity according to the relationship between the speed and the sound intensity, and the terminal uses this compensation amount to adjust the operational amplifier of the volume control system inside the terminal to achieve a reasonable signal amplification gain. This amplifier can have different ratios of gain for different frequencies.

The technical solution provided by the embodiment of the present invention enables the terminal to automatically adjust the volume of the sound as the speed changes during the movement process, thereby improving the quality of the sound output by the terminal, improving the anti-interference ability, and improving the quality of voice evaluation of the terminal user.

The embodiment of the present invention provides a method for automatically adjusting the sound by obtaining the speed value from the base station. Referring to FIG. 2, the specific steps of the method for the terminal to obtain the speed value from the base station to automatically adjust the sound are:

21. The base station detects the moving speed of the terminal;

22. The base station sends a message containing the speed value to the terminal;

23. The terminal receives the message, and acquires a speed value of the terminal;

24. The terminal adjusts the sound intensity according to the speed value.

In the method provided in this embodiment, when the moving speed of the terminal increases, the strength of the sound signal is increased according to different gain ratios for the sound spectrum of 0 to 20khz, or the strength of the sound signal is increased according to the same gain ratio; the moving speed of the terminal When reducing, the intensity of the sound signal is reduced according to different gain ratios for the sound spectrum from 0 to 20khz, or the strength of the sound signal is reduced according to the same gain ratio.

The terminal can also determine the compensation amount that needs to be compensated for the sound intensity according to the relationship between the speed and the sound intensity, and the terminal uses this compensation amount to adjust the operational amplifier of the volume control system inside the terminal to achieve a reasonable signal amplification gain. This amplifier can have different ratios of gain for different frequencies.

In the embodiment of the present invention, the base station may use various methods in the prior art to measure the moving speed of the terminal. The embodiment of the present invention does not limit the method for measuring the base station, and will not be repeated here. After detecting the moving speed of the terminal, the base station sends a message to notify the terminal of the current moving speed of the terminal, and the terminal obtains the speed value of the terminal from the message sent by the base station.

In the method provided by the embodiment of the present invention, the speed value obtained by the terminal is the moving speed of the terminal relative to the ground. The speed value transmission can have the following schemes:

1. You can use the management message type reserved by the system to send the speed value; for example, in the 802.16 system (broadband wireless access system), the protocol defines a complete management message type, and reserves the types 8, 19, 20, 50-255 . In the embodiment of the present invention, in the 802.16 system, any one of these types of management messages can be used to transmit the measured speed value of the terminal;

2. The downlink extended message element reserved in the 802.16 system can be used to carry the measured speed value of the terminal; as shown in the following table:

Syntax size notes DL_Extended_IEO{ Extended DIUC 4 bits 0x00..0x0F Length 4 bits Length in bytes of Unspecified data field Unspecified data variants }

3. The uplink extended message element reserved in the 802.16 system can be used to carry the measured speed value of the terminal; as shown in the following table:

Syntax size notes UL_Extended_IEO{ Extended UIUC 4 bits 0x00..0x0F Length 4 bits Length in bytes of Unspecified data field Unspecified data variants }

4. The RNG-RSP message may be extended, and the measured velocity value of the terminal may be transmitted by using the extended RNG-RSP message.

5. A new message may also be defined to transmit the measured velocity value of the terminal.

In the embodiment of the present invention, the mobile speed detected by the base station and issued to the terminal is not limited to the 802.16 system, and can also be used in other mobile communication systems, such as the Global System for mobile communication (Global System for mobile Communication, referred to as "GSM ") standard, Code Division Multiple Access (CDMA for short) standard, Wideband Code Division Multiple Access (WCDMA for short) standard, Time Division Synchronous Code Division Multiple Access (Time Division Synchronous Code Division Multiple Access (SCDMA, referred to as "TD-SCDMA") standard, Code Division Multiple Access 2000 (Code Division Multiple Access 2000, referred to as "CDMA2000") standard, Personal Handyphone System (Personal Handyphone System, referred to as "PHS") standard, trunking system, Long Term Evolution (LTE for short) standard, Air Interface Evolution (AIE for short) standard, etc.

Every kind of car, even every specific car has its own noise-speed relationship curve corresponding to its own body condition, road surface condition, etc. The shape of the curve is shown in Figure 3. The relationship between the noise intensity and the mobile speed of the terminal is generally upward, that is, the greater the speed, the greater the noise intensity. Referring to FIG. 4 , the terminal can maintain a relationship curve corresponding to itself, which is used to adjust the sound intensity compensation amount that needs to be compensated due to the speed change.

The above is a method for automatically adjusting speech provided by the embodiment of the present invention. The embodiment of the present invention also provides a terminal capable of applying the above method. Referring to FIG. 5 , the terminal includes: a speed value acquisition unit 51 and a speech adjustment unit 52 . in:

a speed value acquisition unit 51, configured to obtain a speed value of the terminal;

The speech adjustment unit 52 is configured to adjust the intensity of the sound according to the speed value.

The voice adjustment unit 52 increases the strength of the sound signal according to different gain ratios for the sound spectrum of 0 to 20khz when the terminal moving speed increases, or increases the strength of the sound signal according to the same gain ratio; When the speed is reduced, the intensity of the sound signal is reduced by different gain ratios for the sound spectrum from 0 to 20khz, or the intensity of the sound signal is reduced by the same gain ratio.

The compensation amount that needs to be compensated for the sound intensity can also be determined according to the relationship between the speed and the sound intensity, and the speech adjustment unit 52 can also adjust the operational amplifier of the volume control system according to the compensation amount ratio to adjust the gain of the sound signal. Said amplifier can make gains in different proportions according to different sound frequencies.

The speed value obtaining unit 51 obtains the speed value of the terminal, which may be to receive a message from the network side, and obtain the speed value of the terminal from the received message; it may also be to measure the speed value according to GPS (Global Positioning System) The speed value; or it can also be to read the current moving speed of the car measured by the vehicle-mounted system to obtain the speed value of the terminal.

In the terminal provided in this embodiment, the velocity value obtained by the velocity value acquiring unit 51 is the velocity of the terminal relative to the ground. The terminal for automatically adjusting the voice provided in the above embodiments, the embodiment of the present invention also provides a system for automatically adjusting the voice, see Figure 6, the system includes:

The base station 61 is configured to detect the speed value of the terminal, and send the speed value to the terminal;

The terminal 62 is configured to receive the speed value, and adjust the sound intensity according to the speed value.

When the terminal 62 movement speed increases, the sound spectrum of 0 to 20khz increases the strength of the sound signal according to different gain ratios, or increases the strength of the sound signal by the same gain ratio; The sound spectrum to 20khz reduces the strength of the sound signal by a different gain ratio, or reduces the strength of the sound signal by the same gain ratio.

The compensation amount that needs to be compensated for the sound intensity can also be determined according to the relationship between the speed and the sound intensity, and the terminal 62 can also adjust the gain of the sound signal by adjusting the volume control system's operational amplifier according to the volume ratio of the compensation amount. The amplifier can make compensation amounts in different proportions according to different sound frequencies.

A method, terminal, and system for automatically adjusting speech provided by the embodiments of the present invention have been introduced in detail above. For those of ordinary skill in the art, based on the ideas of the embodiments of the present invention, both the specific implementation and the scope of application There may be changes. In summary, the content of the embodiments of this specification should not be construed as limiting the present invention.

Claims (3)

1. a terminal is regulated sound method automatically, it is characterized in that, comprising:

Terminal receives the message from the base station, and described message is the up extended message element that keeps in the descending extended message element that keeps in the management message type that keeps in 802.16 systems or 802.16 systems or 802.16 systems or the RNG-RSP message after the expansion;

Described terminal obtains the velocity amplitude of described terminal from the message of described reception;

Described terminal is determined the compensation rate of needs compensating sound intensity according to the relation of speed and intensity of sound;

Described terminal is regulated the operational amplifier of sound-volume control system to regulate the gain of intensity of sound according to described compensation rate.

2. a terminal is characterized in that, described terminal comprises:

The velocity amplitude acquiring unit, be used to receive message from the base station, obtain velocity amplitude from the message of described reception, described message is the up extended message element that keeps in the descending extended message element that keeps in the management message type that keeps in 802.16 systems or 802.16 systems or 802.16 systems or the RNG-RSP message after the expansion;

The voice regulon is used for determining according to the relation of speed and intensity of sound the compensation rate of needs compensating sound intensity, and the operational amplifier of regulating sound-volume control system according to compensation rate is to regulate the gain of intensity of sound.

3. a system that regulates sound automatically is characterized in that, comprising:

The base station, the velocity amplitude that is used for sense terminals, send described velocity amplitude by message to terminal, described message is the up extended message element that keeps in the descending extended message element that keeps in the management message type that keeps in 802.16 systems or 802.16 systems or 802.16 systems or the RNG-RSP message after the expansion;

Terminal, described terminal comprises:

The velocity amplitude acquiring unit, be used to receive message from the base station, obtain velocity amplitude from the message of described reception, described message is the up extended message element that keeps in the descending extended message element that keeps in the management message type that keeps in 802.16 systems or 802.16 systems or 802.16 systems or the RNG-RSP message after the expansion;

The voice regulon is used for determining according to the relation of speed and intensity of sound the compensation rate of needs compensating sound intensity, and the operational amplifier of regulating sound-volume control system according to compensation rate is to regulate the gain of intensity of sound.

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