CN110662204B - Music and voice transmission operation method based on Bluetooth - Google Patents
Music and voice transmission operation method based on Bluetooth Download PDFInfo
- Publication number
- CN110662204B CN110662204B CN201810703778.7A CN201810703778A CN110662204B CN 110662204 B CN110662204 B CN 110662204B CN 201810703778 A CN201810703778 A CN 201810703778A CN 110662204 B CN110662204 B CN 110662204B
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- mobile terminal
- music
- voice
- audio device
- 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
Images
Classifications
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
Abstract
The invention provides a music and voice transmission operation method based on Bluetooth, which adopts various Bluetooth audio protocols in uplink and downlink channels and operates uplink or downlink audio under different Bluetooth protocols, thereby not only obviously improving the sound quality obtained by a user, increasing the interaction flexibility between music and voice, but also enhancing the user experience.
Description
Technical Field
The invention belongs to the field of audio frequency, and particularly relates to a music and voice transmission operation method based on Bluetooth.
Background
Nowadays, there are various karaoke platforms and live broadcast platforms on various mobile terminals, and accordingly, various bluetooth audio devices are increasingly applied to these platforms, fig. 1 shows a typical application scenario, when a singer or webcast wears a bluetooth headset microphone or uses a bluetooth microphone with an inserted headset to sing or broadcasting directly, the singer or webcast often needs to listen to music from a mobile terminal and sing or speaking, and the voice of the singer or webcast is then transmitted back to the mobile terminal and recorded by the mobile terminal or transmitted to an external network, in this case, both the downstream music and the upstream voice use bluetooth HFP (handfree profile) protocol (bluetooth alliance sig (special Interest group) to define a plurality of bluetooth protocols including A2DP, HFP, AVRCP, etc.), there is no interaction between music and voice, meanwhile, the Bluetooth HFP protocol only supports audio transmission with a single sound channel sampling rate of 16KHz at most, the sound quality is poor when the user listens to music and passes back singing voice, the requirement of HiFi sound quality cannot be met, and the music experience effect of a singer or a main broadcasting is poor.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a music and voice transmission operation method based on Bluetooth, which adopts a plurality of Bluetooth audio protocols in uplink and downlink channels and operates uplink or downlink audio under different protocols of Bluetooth, thereby not only obviously improving the sound quality obtained by a user, increasing the interaction flexibility between music and voice, but also enhancing the user experience.
The method comprises the steps of providing a first mobile terminal, wherein the first mobile terminal comprises a first Bluetooth module; providing a Bluetooth audio device, wherein the Bluetooth audio device comprises a second Bluetooth module, a loudspeaker and a microphone; establishing Bluetooth connection between a first mobile terminal and Bluetooth audio equipment; establishing a music transmission channel by using a Bluetooth A2DP protocol, sending a music signal to a Bluetooth audio device by a first mobile terminal, and replaying the music signal to a user by a loudspeaker; a microphone of the Bluetooth audio equipment receives user voice, a voice transmission channel is established by using an RFCOMM protocol, and the Bluetooth audio equipment sends a voice signal to the first mobile terminal; the first mobile terminal receives a request for communication of the audience, keeps a music transmission channel established under the A2DP protocol and a sound transmission channel established under the RFCOMM protocol, establishes a bidirectional communication channel under the HFP protocol between the first mobile terminal and the Bluetooth audio device, and sends the voice of the audience to the Bluetooth audio device through the bidirectional communication channel and plays the voice to a user through a loudspeaker; meanwhile, a microphone of the bluetooth audio device receives the voice of the user, and the bluetooth audio device sends the voice of the user back to the first mobile terminal by using the bidirectional communication channel under the HFP protocol, and the voice is sent to an opposite-end listener by the first mobile terminal through a cellular network.
Wherein, the voice signals of the channels under different Bluetooth technical protocols are mutually operated.
The mutual operation comprises that music signals under the A2DP protocol are called in the Bluetooth audio equipment and are added into a two-way call channel under the HFP protocol to be sent back to the first mobile terminal.
Further, it is proposed that the bluetooth audio device is connected to two mobile terminals simultaneously by using a Multipoint mode, and a music channel of A2DP protocol, a sound transmission channel of an RFCOMM protocol and a bidirectional communication channel of an HFP protocol are respectively established between the bluetooth audio device and the two mobile terminals.
For the music transmission channel of the above-mentioned A2DP protocol, the music transmission channel may be established using the APTX or HWA protocol instead of the A2DP protocol.
Drawings
FIG. 1 is a schematic diagram of an application scenario using the Bluetooth HFP protocol in the prior art
FIG. 2 is a schematic diagram of a first embodiment of the present invention
FIG. 3 is a schematic view of a second embodiment of the present invention
Detailed Description
As mentioned in the background, the bluetooth alliance SIG defines a plurality of bluetooth protocols, but it is not limited to running multiple protocols simultaneously between devices, which provides an idea for implementing the present invention. Fig. 2 shows a first embodiment of the present invention, a first mobile terminal 1 is provided, the first mobile terminal 1 comprises a first bluetooth module (not shown in the figure), a bluetooth audio device 2 is provided, the bluetooth audio device 2 comprises a second bluetooth module (not shown in the figure), a speaker 21 and a microphone 22; establishing Bluetooth connection between the first mobile terminal 1 and the Bluetooth audio device 2; running a karaoke or webcast application in the mobile terminal 1, the user controlling the application to play music, the application establishing a music transmission channel using the bluetooth A2DP protocol, sending a music signal to the bluetooth audio device 2, the user listening to the music signal played back by the speaker 21, because the A2DP protocol allows the transmission of sound signals of stereo CD sound quality, the user can get the best hearing experience; when listening to high-quality music signals, the user uses the microphone 22 of the Bluetooth audio device 2 to receive the voice of the user, the Bluetooth audio device 2 uses the RFCOMM protocol to establish a sound transmission channel and sends the voice signals to the mobile terminal 1; the mobile terminal 1 receives the voice signal, records the signal or directly broadcasts the signal through the network; the RFCOMM protocol can support the audio signal transmission of double channels with the sampling rate of 48KHz per channel, so that the transmission of high definition can be realized no matter whether the audio signal is a downlink music signal or an uplink voice signal.
When a user carries out karaoke or live broadcasting, an audience can dial the telephone number of the mobile terminal 1 of the user to carry out live interaction, such as discussion with the user or chorus with the user, at the moment, besides maintaining the established music transmission channel of the A2DP protocol and the sound transmission channel of the RFCOMM protocol, a two-way communication channel under the HFP protocol is established for communication between the user and the audience, the voice of the audience is sent to the Bluetooth audio device 2 by the mobile terminal 1 through the two-way communication channel, and the user hears the voice of the audience played back by the loudspeaker 21; meanwhile, the microphone 22 of the bluetooth audio device 2 receives the user's voice, and the bluetooth audio device 2 transmits the user's voice back to the mobile terminal 1 using the bidirectional communication channel under the above HFP protocol, and is transmitted by the mobile terminal 1 to the opposite listener via the cellular network.
In particular, the user can operate the bluetooth audio device 2 to call the A2DP music signal and add the signal into the bidirectional communication channel under the HFP protocol, so that the opposite listener can hear the voice of the user as well as the music, and through the interoperation, the interaction between the signals can be enhanced, and the interactivity between the user and the listener is enhanced. Of course, if the sampling rate of the music signal under the A2DP protocol is not consistent with the sampling rate of the two-way communication channel under the HFP protocol, the music signal under the A2DP protocol needs to be resampled first and then added.
Furthermore, after the music signal, the voice signal collected by the microphone 22 and the voice signal from the listener are mixed in the bluetooth audio device 2, the mixed voice signal is transmitted back to the mobile terminal 1 by using the transmission channel under the RFCOMM protocol; the mobile terminal 1 receives the voice signal, records the signal or directly broadcasts the signal through the network. Wherein, the sound mixing can be performed according to the following formula:
wherein, XL、XRFor left and right channel return signals, Music, respectivelyL、MusicRLeft and right track signals, V, respectively, of a music signal1For user speech signals, V2Alpha is coefficient, alpha is more than or equal to 0 and less than or equal to 1. Of course, because there are different protocols, the sampling rates of the audio signals of the channels are not necessarily the same, and it is necessary to unify the sampling rates of the signals before mixing, for example, for the audio signal of the listener under HFP protocol, if the sampling rate is 8KHz or 16KHz, and the sampling rate of the channel under RFCOMM protocol is 48KHz, the audio signal of the listener under HFP protocol needs to be up-sampled first.
A second embodiment is provided, as shown in fig. 3, and is different from the first embodiment in that a Multipoint (Multipoint connection) manner is adopted, that is, one bluetooth audio device 2 is paired and connected with a first mobile terminal 1 and a second mobile terminal 1 ', wherein a music transmission channel of A2DP protocol and a sound transmission channel under RFCOMM protocol are established between the mobile terminal 1 and the bluetooth audio device 2, and a two-way call channel under HFP protocol is established between the bluetooth audio device 2 and the mobile terminal 1', that is, an audience makes a call to the mobile terminal 1 ', audience voice is sent from the mobile terminal 1' to the bluetooth audio device 2 via the two-way call channel, and a user hears the audience voice played back by a speaker 21; meanwhile, the microphone 22 of the bluetooth audio device 2 receives the user's voice at the same time, and the bluetooth audio device 2 transmits the user's voice back to the mobile terminal 1 'using the two-way communication channel under the above-mentioned RFCOMM protocol, and is transmitted by the mobile terminal 1' to the opposite listener via the cellular network.
Similarly, the user can operate the bluetooth audio device 2 to call up the A2DP music signal and join the two-way communication channel under the HFP protocol, so that the opposite listener can hear not only the user's voice but also music.
Further, similarly to the case of the first embodiment, it is also possible to mix the music signal and the voice signal collected by the microphone 22 and the voice signal from the listener in the bluetooth audio device 2, and then transmit the mixed signal back to the mobile terminal 1 by using the transmission channel under the RFCOMM protocol; the mobile terminal 1 receives the voice signal, records the signal or directly broadcasts the signal through the network.
Claims (9)
1. A music and voice transmission operation method based on Bluetooth is provided, wherein a first mobile terminal (1) is provided, and the first mobile terminal (1) comprises a first Bluetooth module; providing a Bluetooth audio device (2), wherein the Bluetooth audio device (2) comprises a second Bluetooth module, a loudspeaker (21) and a microphone (22); establishing Bluetooth connection between a first mobile terminal (1) and Bluetooth audio equipment (2); characterized in that a music transmission channel is established using the bluetooth A2DP protocol, a music signal is sent by the first mobile terminal (1) to the bluetooth audio device (2), and the music signal is played back by the speaker (21) to the user; a microphone (22) of the Bluetooth audio device (2) receives user voice, a voice transmission channel is established by using an RFCOMM protocol, and the Bluetooth audio device (2) sends a voice signal to the first mobile terminal (1); the first mobile terminal (1) receives a request for communication of the audience, keeps the music transmission channel established under the A2DP protocol and the sound transmission channel established under the RFCOMM protocol, establishes a two-way communication channel under the HFP protocol between the first mobile terminal (1) and the Bluetooth audio device (2), and sends the voice of the audience to the Bluetooth audio device (2) through the two-way communication channel by the first mobile terminal (1) and plays the voice to the user by a loudspeaker (21); meanwhile, a microphone (22) of the Bluetooth audio device (2) receives the voice of the user, the Bluetooth audio device (2) sends the voice of the user back to the first mobile terminal (1) by using a bidirectional communication channel under the HFP protocol, and the voice is sent to an opposite-end listener by the first mobile terminal (1) through a cellular network;
after mixing the music signal, the voice signal collected by the microphone (22) and the voice signal from the audience in the Bluetooth audio device (2), transmitting the mixed voice signal back to the first mobile terminal (1) by using a transmission channel under an RFCOMM protocol; the first mobile terminal (1) receives the voice signal;
mixing is performed according to the following formula:
wherein, XL、XRFor left and right channel return signals, Music, respectivelyL、MusicRLeft and right track signals, V, respectively, of a music signal1For user speech signals, V2Alpha is coefficient, alpha is more than or equal to 0 and less than or equal to 1.
2. The bluetooth-based music and voice transmission operation method of claim 1, wherein the sound signals of the channels under different bluetooth technology protocols are interworked.
3. The bluetooth-based music and speech transmission operation method according to claim 2, wherein the interoperation comprises calling a music signal under A2DP protocol in the bluetooth audio device (2) and joining a two-way communication channel under the HFP protocol to be transmitted back to the first mobile terminal (1).
4. A music and voice transmission operation method based on Bluetooth is provided, wherein a first mobile terminal (1) is provided, and the first mobile terminal (1) comprises a first Bluetooth module; providing a Bluetooth audio device (2), wherein the Bluetooth audio device (2) comprises a second Bluetooth module, a loudspeaker (21) and a microphone (22); providing a second mobile terminal (1 '), the second mobile terminal (1') comprising a third bluetooth module;
establishing Bluetooth connection between a first mobile terminal (1) and Bluetooth audio equipment (2);
establishing a Bluetooth connection between a second mobile terminal (1') and a Bluetooth audio device (2);
characterized in that a music transmission channel is established using the bluetooth A2DP protocol, a music signal is sent by the first mobile terminal (1) to the bluetooth audio device (2), and the music signal is played back by the speaker (21) to the user;
a microphone (22) of the Bluetooth audio device (2) receives user voice, establishes a sound transmission channel by using an RFCOMM protocol and sends a voice signal to the first mobile terminal (1);
the second mobile terminal (1 ') receives the request of the audience conversation, keeps the music transmission channel established under the A2DP protocol and the sound transmission channel established under the RFCOMM protocol between the first mobile terminal (1) and the Bluetooth audio device (2), establishes the two-way conversation channel under the HFP protocol between the second mobile terminal (1 ') and the Bluetooth audio device (2), and the audience voice is sent to the Bluetooth audio device (2) by the second mobile terminal (1 ') through the two-way conversation channel and is played to the user by the loudspeaker (21);
meanwhile, a microphone (22) of the Bluetooth audio device (2) receives the voice of the user, and the Bluetooth audio device (2) sends the voice of the user back to the second mobile terminal (1 ') by using the two-way call channel under the HFP protocol and sends the voice of the user to an opposite-end listener through a cellular network by the second mobile terminal (1').
5. The bluetooth-based music and voice transmission operation method according to claim 4, wherein the sound signals of the channels under different bluetooth technology protocols are interworked.
6. The bluetooth-based music and voice transmission operation method according to claim 5, wherein the interoperation includes calling a music signal under A2DP protocol in the bluetooth audio device (2), joining a two-way call channel under the HFP protocol above, and sending back to the second mobile terminal (1').
7. A method of operation of a Bluetooth based music and speech transmission according to one of the claims 4-6, mixing the music signal with the speech signal collected by the microphone (22) and the speech signal from the listener in the Bluetooth audio device (2), and then using the RFCOMM protocol down-channel to transmit the mixed signal back to the first mobile terminal (1); the first mobile terminal (1) receives the voice signal.
8. The bluetooth-based music and voice transmission operation method according to claim 7, wherein the mixing is performed according to the following formula:
wherein, XL、XRFor left and right channel return signals, Music, respectivelyL、MusicRLeft and right track signals, V, respectively, of a music signal1For user speech signals, V2Alpha is coefficient, alpha is more than or equal to 0 and less than or equal to 1.
9. The method of claim 1 or 4, wherein the music transmission channel is established using APTX or HWA protocol instead of A2DP protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810703778.7A CN110662204B (en) | 2018-07-01 | 2018-07-01 | Music and voice transmission operation method based on Bluetooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810703778.7A CN110662204B (en) | 2018-07-01 | 2018-07-01 | Music and voice transmission operation method based on Bluetooth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110662204A CN110662204A (en) | 2020-01-07 |
| CN110662204B true CN110662204B (en) | 2020-11-20 |
Family
ID=69026992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810703778.7A Active CN110662204B (en) | 2018-07-01 | 2018-07-01 | Music and voice transmission operation method based on Bluetooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110662204B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111385780A (en) * | 2020-01-17 | 2020-07-07 | 北京塞宾科技有限公司 | Bluetooth audio signal transmission method and device |
| CN111225102A (en) * | 2020-01-17 | 2020-06-02 | 北京塞宾科技有限公司 | Bluetooth audio signal transmission method and device |
| CN111261175A (en) * | 2020-01-17 | 2020-06-09 | 北京塞宾科技有限公司 | Bluetooth audio signal transmission method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272570A (en) * | 2008-04-28 | 2008-09-24 | 北京中星微电子有限公司 | Method for implementing network karaoke OK and portable equipment |
| CN106251890A (en) * | 2016-08-31 | 2016-12-21 | 广州酷狗计算机科技有限公司 | A kind of methods, devices and systems of recording song audio frequency |
| CN106341516A (en) * | 2015-07-06 | 2017-01-18 | 中兴通讯股份有限公司 | Multipoint connection control method and apparatus, terminal and multipoint bluetooth earphone |
| CN207340160U (en) * | 2017-10-26 | 2018-05-08 | 张德明 | A kind of wireless K songs sound system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9792917B2 (en) * | 2013-05-09 | 2017-10-17 | Kt Micro, Inc. | Audio processing device and method and electro-acoustic converting device and method |
-
2018
- 2018-07-01 CN CN201810703778.7A patent/CN110662204B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272570A (en) * | 2008-04-28 | 2008-09-24 | 北京中星微电子有限公司 | Method for implementing network karaoke OK and portable equipment |
| CN106341516A (en) * | 2015-07-06 | 2017-01-18 | 中兴通讯股份有限公司 | Multipoint connection control method and apparatus, terminal and multipoint bluetooth earphone |
| CN106251890A (en) * | 2016-08-31 | 2016-12-21 | 广州酷狗计算机科技有限公司 | A kind of methods, devices and systems of recording song audio frequency |
| CN207340160U (en) * | 2017-10-26 | 2018-05-08 | 张德明 | A kind of wireless K songs sound system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110662204A (en) | 2020-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3276905B1 (en) | System for audio communication using lte | |
| CN110662204B (en) | Music and voice transmission operation method based on Bluetooth | |
| CN207340160U (en) | A kind of wireless K songs sound system | |
| CN110662206B (en) | Bluetooth-based high-definition music and voice transmission operation method | |
| CN109714671A (en) | A kind of wireless K song sound system | |
| CN100579020C (en) | Digital session discussing system | |
| US20100248704A1 (en) | Process and device for the acquisition, transmission, and reproduction of sound events for communication applications | |
| CN110661907B (en) | Bluetooth-based high-definition call recording method | |
| CN110662207B (en) | High-quality music and voice transmission operation method based on Bluetooth | |
| CN115278440A (en) | One drags many bimodulus bluetooth to cascade traffic earphone system | |
| CN109658910A (en) | A kind of wireless K song system | |
| CN112367581B (en) | Earphone device, conversation system, equipment and device | |
| US8526589B2 (en) | Multi-channel telephony | |
| CN207340161U (en) | A kind of K song systems based on Baffle Box of Bluetooth | |
| KR20060031551A (en) | Stereo mobile terminal and method for talking over the stereo mobile terminal | |
| CN207706422U (en) | Wireless K sings sound system | |
| CN212752587U (en) | Earphone sound expands broadcast scene system outward | |
| CN110856068B (en) | Communication method of earphone device | |
| EP2876870A1 (en) | Playing a music from a music player at a cordless phone base station | |
| CN116939509A (en) | Multi-person voice call system with broadcasting mechanism | |
| CN110211555A (en) | K sings system | |
| TW202341763A (en) | Multi-user voice communication system having broadcast mechanism | |
| JP2003250006A (en) | Speech system for phone and speech method | |
| CN117296348A (en) | Method and electronic device for Bluetooth audio multi-streaming | |
| JP2002209021A (en) | Wireless interphone system |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200417 Address after: 100085 12A-2, B, block 28, information road, Haidian District, Beijing. Applicant after: BEIJING SAIBIN SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 100085 12A-2, B, block 28, information road, Haidian District, Beijing. Applicant before: Zhang Deming |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |