CN112565982B - Interactive sound box and sound reinforcement method using same - Google Patents
Interactive sound box and sound reinforcement method using same Download PDFInfo
- Publication number
- CN112565982B CN112565982B CN201910914355.4A CN201910914355A CN112565982B CN 112565982 B CN112565982 B CN 112565982B CN 201910914355 A CN201910914355 A CN 201910914355A CN 112565982 B CN112565982 B CN 112565982B
- Authority
- CN
- China
- Prior art keywords
- mode
- signal
- unit
- stereo
- audio processing
- 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
- 230000002452 interceptive effect Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002787 reinforcement Effects 0.000 title description 3
- 230000003321 amplification Effects 0.000 claims description 40
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 40
- 239000000284 extract Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- 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
- H04S7/308—Electronic adaptation dependent on speaker or headphone connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/09—Applications of special connectors, e.g. USB, XLR, in loudspeakers, microphones or headphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention provides an interactive sound box and a sound amplifying method using the same, which can be bidirectionally interconnected with a mobile phone, a television and a tablet personal computer through a Bluetooth audio processing unit arranged in the sound box and realize music sound mixing, video shooting and uplink sharing by one key.
Description
Technical Field
The invention belongs to the field of audio frequency, and particularly relates to an interactive sound box and a sound amplifying method using the same.
Background
In order to meet the sound reinforcement requirements of a multi-person place, expensive professional sound equipment or low-price civil sound equipment is used; the professional sound box is complex in structure, needs dozens of devices, hundreds of lines and hundreds of switch knobs, is very heavy in size, cannot move due to dozens of kilograms to hundreds of kilograms, is high in power consumption and application threshold, belongs to professional equipment, and cannot be operated by ordinary people; the use of low-end civil sound equipment can cause poor tone quality and poor definition, and can easily cause human voice chaos and music turbidity, so that scenes with requirements on sound, such as education, culture, meetings and the like, can not be met; most importantly, neither has internet capability and cannot be interconnected with a mobile phone.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an interactive sound box and a sound amplifying method using the same, which can be bidirectionally interconnected with a mobile phone, a television and a tablet personal computer through a Bluetooth audio processing unit arranged in the sound box, realize music mixing, video shooting and uplink sharing by one key, and particularly can be used as a single machine or combined by a plurality of single machines through the working mode switching function of the sound box so as to meet the requirements of occasions with different scales, and can be competent in the occasions from dozens of people to hundreds of people.
The interactive sound box comprises a Bluetooth audio processing unit, a UHF unit, a microphone, a frequency division power amplification unit, a high-low tone stereo loudspeaker, an RF radio frequency unit and a built-in battery, and is characterized by further comprising a working mode selection module; the working mode selection module can provide six working modes for a user to select, wherein the working modes comprise a master mode and a slave mode, the master mode comprises an MS mode, a master stereo mode, an ML mode, a master left channel mode, an MR mode, a master right channel mode, and the slave mode comprises an SS mode, a slave stereo mode, an SL mode, a slave left channel mode, an SR mode and a slave right channel mode.
When the working mode selection module of the sound is set to be in a host mode, the Bluetooth audio processing unit establishes Bluetooth wireless bidirectional connection with the mobile terminal; the UHF unit receives the microphone signals sent by at least one UHF microphone and further sends the microphone signals to the Bluetooth audio processing unit; the Bluetooth audio processing unit further receives a signal sent by the mobile terminal, the unit mixes the signal from the mobile terminal with a microphone signal to obtain a stereo audio mixing signal, and the Bluetooth audio processing unit returns the stereo audio mixing signal to the mobile terminal through Bluetooth connection.
Furthermore, if the mobile station is in the MS mode, the Bluetooth audio processing unit converts the stereo mixed sound signal into an analog stereo signal, sends the analog stereo signal to the frequency division power amplification unit, drives the high-low tone stereo loudspeaker to play by the frequency division power amplification unit, and simultaneously sends the analog stereo signal to the RF unit and broadcasts the analog stereo signal by the unit.
Furthermore, if the mobile terminal is in the ML/MR mode, the bluetooth audio processing unit converts the left/right channel signal in the stereo audio mixing signal into an analog dual-channel MONO signal, that is, both channels are left channel signal/right channel signal, sends the analog dual-channel MONO signal to the crossover power amplification unit, and the crossover power amplification unit drives the high and low sound stereo speakers to play, and at the same time, the bluetooth audio processing unit converts the stereo audio mixing signal into an analog stereo signal and sends the analog stereo signal to the RF radio frequency unit, and the unit broadcasts the analog stereo signal.
Further, the UHF unit sends the microphone signal to the Bluetooth audio processing unit using a dual-path I2S format.
When the working mode selection module of the sound is set to be in a slave mode, the RF unit receives an analog stereo signal from the host and sends the analog stereo signal to the Bluetooth audio processing unit.
Furthermore, the current mode is SS mode, the Bluetooth audio processing unit directly sends the analog stereo signal to the frequency division power amplification unit, and the frequency division power amplification unit drives the high and low sound stereo loudspeaker to play.
Furthermore, when the current mode is the SL/SR mode, the Bluetooth audio processing unit extracts the left channel signal/right channel signal in the analog stereo signal, converts the left channel signal/right channel signal into an analog dual-channel MONO signal, sends the analog dual-channel MONO signal to the frequency division power amplification unit, and drives the high-low sound stereo loudspeaker to play the analog dual-channel MONO signal by the frequency division power amplification unit.
A sound amplifying method is provided, at least two interactive sound devices of claim 1 are used, wherein one of the interactive sound devices is set as ML/MR mode of a host computer, a microphone is connected through a UHF unit, a mobile terminal is connected through a Bluetooth audio processing unit, the Bluetooth audio processing unit controls a frequency division power amplification unit to drive a high and low stereo loudspeaker to play left channel/right channel signals, and signals are broadcasted through an RF unit, the other interactive sound devices are set as SL/SR mode of a slave computer, signals broadcasted by the host computer are received through the RF unit and are sent to the Bluetooth audio processing unit, and the Bluetooth audio processing unit controls the frequency division power amplification unit to drive the high and low stereo loudspeaker to play left channel/right channel signals.
Another sound amplifying method is provided, at least two interactive sound devices as claimed in claim 1 are used, one sound device is set to be in an MS mode of a host, the microphone is connected through a UHF unit, the mobile terminal is connected through a Bluetooth audio processing unit, the Bluetooth audio processing unit controls a frequency division power amplification unit to drive a high-low sound stereo loudspeaker to play stereo signals, the signal broadcasting is carried out through an RF unit, the other sound devices are set to be in an SS mode of a slave, the signals broadcasted by the host are received through the RF unit and are sent to the Bluetooth audio processing unit, and the Bluetooth audio processing unit controls the frequency division power amplification unit to drive the high-low sound stereo loudspeaker to play stereo signals.
Drawings
FIG. 1 is a schematic diagram of the structure and operation of the interactive sound equipment of the present invention
FIG. 2 is a schematic diagram of the operation of the dual-engine TWS of the interactive speaker of the present invention
FIG. 3 is a schematic diagram of the operation of the interactive audio multi-unit TWS of the present invention
FIG. 4 is a schematic diagram of the operation of the interactive audio system in a multi-machine duplication mode
Detailed Description
The structure and function of the interactive sound system of the present invention will be described in detail with reference to fig. 1. The interactive sound equipment 1 comprises a Bluetooth audio processing unit 11, a UHF unit 12, a microphone 121, a frequency division power amplifier unit 13, a high and low sound stereo loudspeaker 14, an RF radio frequency unit 15, a built-in battery (not shown in the figure), and further comprises a working mode selection module 16; the operation mode selection module 16 can provide six operation modes, which are MS mode-main stereo mode, ML mode-main left channel mode, MR mode-main right channel mode, SS mode-slave stereo mode, SL mode-slave left channel mode, SR mode-slave right channel mode.
When the working mode selection module 16 is set to the host mode, the specific working process is as follows, and a bluetooth wireless bidirectional connection is established between the bluetooth audio processing unit 11 and the mobile terminal 2; the UHF unit 12 receives the microphone signal sent by the at least one UHF microphone 121, and further sends the microphone signal to the bluetooth audio processing unit 11 using the dual-channel I2S format; the bluetooth audio processing unit 11 further receives a signal sent from the mobile terminal 2, for example, a stereo music signal, and the unit 11 mixes the signal from the mobile terminal 2 with a microphone signal to obtain a stereo mixed signal; if the mobile terminal is in the MS mode, on one hand, the bluetooth audio processing unit 11 returns the stereo audio mixing signal to the mobile terminal 2 through the bluetooth connection, and on the other hand, converts the stereo audio mixing signal into an analog stereo signal, and sends the analog stereo signal to the crossover power amplification unit 13, the crossover power amplification unit 13 drives the high and low volume stereo speakers 14 to play the signal, and meanwhile, the analog stereo signal is also sent to the RF radio unit 15, and the unit 15 broadcasts the analog stereo signal; if the mobile terminal is in the ML mode, on one hand, the stereo mixed sound signal is sent back to the mobile terminal 2 through the bluetooth connection, on the other hand, the bluetooth audio processing unit 11 firstly converts the left channel signal in the stereo mixed sound signal into an analog two-channel MONO signal, that is, both channels are left channel signals, sends the analog two-channel MONO signal to the crossover power amplification unit 13, the crossover power amplification unit 13 drives the high and low sound stereo loudspeaker 14 to play, and simultaneously, the bluetooth audio processing unit 11 converts the stereo mixed sound signal into an analog stereo signal and sends the analog stereo signal to the RF radio frequency unit 15, and the unit 15 broadcasts the analog stereo signal; if the mobile terminal is in the MR mode, on one hand, the stereo mixed sound signal is sent back to the mobile terminal 2 through the bluetooth connection, on the other hand, the bluetooth audio processing unit 11 firstly converts the right channel signal in the stereo mixed sound signal into an analog two-channel MONO signal, that is, both channels are right channel signals, sends the analog two-channel MONO signal to the crossover power amplification unit 13, the crossover power amplification unit 13 drives the high and low volume stereo speaker 14 to play, and at the same time, the bluetooth audio processing unit 11 converts the stereo mixed sound signal into an analog stereo signal and sends the analog stereo signal to the RF radio frequency unit 15, and the unit 15 broadcasts the analog stereo signal.
When the working mode selection module 16 is set to the slave mode, the specific working flow is as follows: the RF unit 15 receives the analog stereo signal from the host, and sends the analog stereo signal to the bluetooth audio processing unit 11; if the current mode is the SS mode, the Bluetooth audio processing unit 11 directly sends the analog stereo signal to the frequency division power amplification unit 13, and the frequency division power amplification unit 13 drives the high-bass stereo loudspeaker 14 to play the analog stereo signal; if the current mode is the SL mode, the Bluetooth audio processing unit 11 extracts a left channel signal in the analog stereo signal, converts the left channel signal into an analog dual-channel MONO signal, sends the analog dual-channel MONO signal to the frequency division power amplification unit 13, and drives the high and low stereo loudspeaker 14 to play the analog dual-channel MONO signal by the frequency division power amplification unit 13; if the current mode is SR, the bluetooth audio processing unit 11 extracts the right channel signal in the analog stereo signal, converts the right channel signal into an analog two-channel MONO signal, and sends the analog two-channel MONO signal to the frequency division power amplification unit 13, and the frequency division power amplification unit 13 drives the high and low stereo speaker 14 to play the analog two-channel MONO signal.
Under different occasions, a plurality of interactive sound boxes of the invention are combined for use, so that various requirements can be met. Some examples are listed below for illustration. Fig. 2 shows a dual-machine TWS operating mode, which can be used in a small place, where one sound device is set to an ML mode and the other sound device is set to an SR mode, and the two sound devices can be placed on the left and right sides of the place to form stereo sound amplification.
Fig. 3 shows an application in a larger place, and four speakers are used, one is set as ML, the second is set as SL, and the other two are set as SR, i.e. the left channel signal is played by the speakers set as ML and SL, the right channel signal is played by the speakers set as SL and SR, and the projection range and the projection power can be expanded by linkage of a plurality of speakers, wherein the speaker set as ML is connected with a microphone and a mobile terminal.
Fig. 4 shows another way of amplifying sound, namely setting one sound as MS and the rest as SS, i.e. the slave plays the stereo signal in a copy way, which is suitable for the situation of more dispersed people.
Those skilled in the art can appreciate reasonable modifications based on this disclosure, which are intended to fall within the scope of the invention.
Claims (6)
1. An interactive sound box comprises a Bluetooth audio processing unit, a UHF unit, a microphone, a frequency division power amplification unit, a high-low tone stereo loudspeaker, an RF radio frequency unit and a built-in battery, and is characterized by also comprising a working mode selection module; the working mode selection module can provide six working modes for a user to select, wherein the working modes comprise a master mode and a slave mode, the master mode comprises an MS mode, a master stereo mode, an ML mode, a master left channel mode, an MR mode, a master right channel mode, and the slave mode comprises an SS mode, a slave stereo mode, an SL mode, a slave left channel mode, an SR mode and a slave right channel mode;
when the working mode selection module of the sound equipment is set to be in a host mode, the Bluetooth audio processing unit establishes Bluetooth wireless bidirectional connection with the mobile terminal; the UHF unit receives the microphone signals sent by at least one UHF microphone and further sends the microphone signals to the Bluetooth audio processing unit; the Bluetooth audio processing unit further receives a signal sent by the mobile terminal, mixes the signal from the mobile terminal with a microphone signal to obtain a stereo audio mixing signal, and returns the stereo audio mixing signal to the mobile terminal through Bluetooth connection;
if the mobile phone is in the MS mode, the Bluetooth audio processing unit converts the stereo audio mixing signal into an analog stereo signal and sends the analog stereo signal to the frequency division power amplification unit, the frequency division power amplification unit drives a high-low sound stereo loudspeaker to play the signal, meanwhile, the analog stereo signal is also sent to the RF unit, and the unit broadcasts the analog stereo signal;
if the mobile phone is in the ML/MR mode, the Bluetooth audio processing unit firstly converts a left/right channel signal in the stereo audio mixing signal into an analog dual-channel MONO signal, namely, both channels are left channel signals/right channel signals, sends the analog dual-channel MONO signal to a frequency division power amplification unit, the frequency division power amplification unit drives a high-low sound stereo loudspeaker to play, and simultaneously, the Bluetooth audio processing unit converts the stereo audio mixing signal into an analog stereo signal and sends the analog stereo signal to an RF (radio frequency) unit, and the unit broadcasts the analog stereo signal;
when the working mode selection module of the sound is set to be in a slave mode, the RF unit receives an analog stereo signal from the host and sends the analog stereo signal to the Bluetooth audio processing unit.
2. The interactive sound of claim 1, wherein the UHF unit sends the microphone signal to the bluetooth audio processing unit using a dual-channel I2S format.
3. The interactive sound box of claim 1, wherein if the current mode is SS mode, the bluetooth audio processing unit directly sends the analog stereo signal to the crossover power amplification unit, and the crossover power amplification unit drives the tweeter and the woofer to play the signal.
4. The interactive sound box of claim 1, wherein if the current mode is SL/SR, the bluetooth audio processing unit extracts the left/right channel signals from the analog stereo signals and converts the left/right channel signals into analog two-channel MONO signals, and sends the analog two-channel MONO signals to the crossover power amplification unit, and the crossover power amplification unit drives the woofer to play the woofer.
5. A sound amplifying method, at least two interactive sound equipments as claimed in claim 1 are used, wherein one of the interactive sound equipments is set as ML/MR mode of the master, the microphone is connected through UHF unit, the mobile terminal is connected through Bluetooth audio processing unit, the Bluetooth audio processing unit controls the frequency division power amplification unit to drive the high and low sound stereo loudspeaker to play left channel/right channel signals, and the RF unit broadcasts the signals, the other interactive sound equipments are set as SL/SR mode of the slave, the signals broadcasted by the master are received through the RF unit and sent to the Bluetooth audio processing unit, and the Bluetooth audio processing unit controls the frequency division power amplification unit to drive the high and low sound stereo loudspeaker to play left channel/right channel signals.
6. A sound amplification method, using at least two interactive sound boxes as claimed in claim 1, setting one sound box as MS mode of host, connecting microphone through UHF unit, connecting mobile terminal through Bluetooth audio processing unit, controlling frequency division power amplification unit by Bluetooth audio processing unit to drive high and low volume stereo speaker to play stereo signal, and broadcasting signal through RF unit, setting the rest sound boxes as SS mode of slave, receiving signal broadcasted by host through RF unit, and sending to Bluetooth audio processing unit, controlling frequency division power amplification unit by Bluetooth audio processing unit to drive high and low volume stereo speaker to play stereo signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914355.4A CN112565982B (en) | 2019-09-26 | 2019-09-26 | Interactive sound box and sound reinforcement method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914355.4A CN112565982B (en) | 2019-09-26 | 2019-09-26 | Interactive sound box and sound reinforcement method using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112565982A CN112565982A (en) | 2021-03-26 |
| CN112565982B true CN112565982B (en) | 2022-03-25 |
Family
ID=75029549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910914355.4A Active CN112565982B (en) | 2019-09-26 | 2019-09-26 | Interactive sound box and sound reinforcement method using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112565982B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115119104A (en) * | 2022-06-20 | 2022-09-27 | 上海炉石信息科技有限公司 | Wireless sound equipment connection system and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990025782A (en) * | 1997-09-18 | 1999-04-06 | 박용선 | Multi-output function mega phone and its integrated system according to main / slave switching |
| CN202677835U (en) * | 2012-07-12 | 2013-01-16 | 东莞市龙健电子有限公司 | Intelligent movie theatre control system |
| CN203327219U (en) * | 2013-06-19 | 2013-12-04 | 王德生 | Multifunctional wireless sound system |
| CN105898503A (en) * | 2016-04-25 | 2016-08-24 | 乐视控股（北京）有限公司 | Playing control method, device and system for mobile terminal |
| CN106210943A (en) * | 2016-07-25 | 2016-12-07 | 北京塞宾科技有限公司 | A kind of wireless K sings microphone |
| CN106941544A (en) * | 2017-05-03 | 2017-07-11 | 张德明 | A kind of mobile terminal Bluetooth audio frequency expansion module |
| CN108616793A (en) * | 2018-05-31 | 2018-10-02 | 北京橙鑫数据科技有限公司 | Sound channel mode determines method, apparatus and electronic equipment |
| CN209390288U (en) * | 2019-03-13 | 2019-09-13 | 杨诗冬 | A kind of stereo radio sound equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10433057B2 (en) * | 2017-10-23 | 2019-10-01 | Bose Corporation | Wireless audio synchronization |
-
2019
- 2019-09-26 CN CN201910914355.4A patent/CN112565982B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990025782A (en) * | 1997-09-18 | 1999-04-06 | 박용선 | Multi-output function mega phone and its integrated system according to main / slave switching |
| CN202677835U (en) * | 2012-07-12 | 2013-01-16 | 东莞市龙健电子有限公司 | Intelligent movie theatre control system |
| CN203327219U (en) * | 2013-06-19 | 2013-12-04 | 王德生 | Multifunctional wireless sound system |
| CN105898503A (en) * | 2016-04-25 | 2016-08-24 | 乐视控股（北京）有限公司 | Playing control method, device and system for mobile terminal |
| CN106210943A (en) * | 2016-07-25 | 2016-12-07 | 北京塞宾科技有限公司 | A kind of wireless K sings microphone |
| CN106941544A (en) * | 2017-05-03 | 2017-07-11 | 张德明 | A kind of mobile terminal Bluetooth audio frequency expansion module |
| CN108616793A (en) * | 2018-05-31 | 2018-10-02 | 北京橙鑫数据科技有限公司 | Sound channel mode determines method, apparatus and electronic equipment |
| CN209390288U (en) * | 2019-03-13 | 2019-09-13 | 杨诗冬 | A kind of stereo radio sound equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112565982A (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8498726B2 (en) | Bi-directional broadcasting system for a small space | |
| US8649538B2 (en) | Hearing aid having multiple sound inputs and methods therefor | |
| US20130039514A1 (en) | Method and apparatus for supplementing low frequency sound in a distributed loudspeaker arrangement | |
| CN210225734U (en) | Regulating and controlling system for stereo playing of sound box | |
| CN105282660A (en) | Method, terminal and system for realizing multichannel stereo output | |
| CN205540039U (en) | One -to -many audio frequency control system based on radio transmission technology | |
| JP2000032599A (en) | Audio signal processing unit | |
| CN110874203A (en) | Screen sounding controller, method, device, terminal and storage medium | |
| CN104936102A (en) | Stereo control method, stereo control device and split type stereo sound boxes | |
| CN112333605B (en) | Sound output control method and system | |
| CN112565982B (en) | Interactive sound box and sound reinforcement method using same | |
| CN101990074A (en) | Television with audio playing function | |
| CN209017238U (en) | A kind of sound system | |
| CN205540057U (en) | One -to -many audio frequency control system based on radio transmission technology | |
| KR20090001928A (en) | Apparatus for sounder for multimedia lecture | |
| CN110662207B (en) | High-quality music and voice transmission operation method based on Bluetooth | |
| CN105810221A (en) | Wireless synchronous audio play system | |
| CN213305717U (en) | Live earphone of K song | |
| CN219834335U (en) | Bluetooth sound system | |
| CN205407845U (en) | Multifunctional conference system | |
| CN219659894U (en) | Conference sound system | |
| US20230029845A1 (en) | Communication terminal, communication system and audio information processing method | |
| CN116782087B (en) | Multifunctional recording and broadcasting equipment | |
| CN205305099U (en) | Multi -purpose audio -visual education programme active audio amplifier | |
| Jiefeng et al. | Design of Audio system for the 4K-UHD Studio of Communication University of China |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |