The invention discloses a multi-channel audio playing method, a multi-channel audio playing system and an audio gateway device based on cloud, wherein the playing method comprises the following steps: dividing the multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information; transmitting the single sound channel audio bit stream belonging to the same subject mark and the corresponding metadata information to the audio gateway device through the network; the audio gateway device synchronously generates a plurality of corresponding single-channel audio signals according to a plurality of received single-channel audio bit streams belonging to the same subject identification and corresponding metadata information; and sending the plurality of single sound channel audio signals belonging to the same subject identification to corresponding wireless sound boxes through different wireless interfaces. The playing system of the invention processes the multi-channel audio to obtain a plurality of single-channel audio signals, and sends the single-channel audio signals to the wireless sound box through different interfaces, thereby realizing the decoding and playing of the multi-channel audio and providing the high-quality music or video listening effect under the condition of low cost.
Description Multi-channel audio playing method and system based on cloud and audio gateway deviceTechnical Field
The invention belongs to the field of multi-channel audio, and particularly relates to a cloud-based multi-channel audio playing method, a cloud-based multi-channel audio playing system, an audio gateway device and a cloud audio processing platform.
Background
The channel system evolves from a single channel system to a multi-channel system, and the traditional multi-channel coding formats such as DTS, AC-3 and the like must perform decoding and playing of multi-channel audio by means of chip hard decoding. Listening to high quality surround sound requires professional equipment, which is expensive and often cannot be undertaken by ordinary users. The method and the device solve the technical problem that the hardware decoding scheme is too high in cost on the premise of ensuring relatively high-quality listening experience.
Disclosure of Invention
The invention aims to solve the technical problem that a hardware decoding scheme based on a chip in the prior art is high in cost, provide a low-cost stereo surround sound service for music enthusiasts, and provide a multi-channel audio playing method based on cloud.
The invention also provides a multi-channel audio playing system based on the cloud.
The invention also provides an audio gateway device.
The invention also provides a cloud audio processing platform.
In order to achieve the technical effects, the invention adopts the following technical scheme:
a cloud-based multi-channel audio playing method, comprising the steps of:
splitting a multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information, wherein said metadata information comprises: theme identification, sound track quantity and time synchronization information;
transmitting the single sound channel audio bit stream belonging to the same subject mark and the corresponding metadata information to the audio gateway device through the network;
the audio gateway device synchronously generates a plurality of corresponding single-channel audio signals according to a plurality of received single-channel audio bit streams belonging to the same subject identification and corresponding metadata information;
and sending the plurality of single sound channel audio signals belonging to the same subject identification to corresponding wireless sound boxes through different wireless interfaces.
In the playing method, a further technical solution is that the mono audio bit stream is any one of: a left channel audio bitstream, a right channel audio bitstream, a center channel audio bitstream, a left surround channel audio bitstream, a right surround channel audio bitstream, a low frequency effects channel audio bitstream, a left rear channel audio bitstream, and a right rear channel audio bitstream.
In the playing method, a further technical scheme is that the wireless interface is a bluetooth interface.
The invention provides an audio gateway device, comprising:
a second network communication unit for receiving a mono audio bitstream and corresponding metadata information; wherein the metadata information includes: theme identification, sound track quantity and time synchronization information; the mono audio bit stream is any one of the following: a left channel audio bitstream, a right channel audio bitstream, a center channel audio bitstream, a left surround channel audio bitstream, a right surround channel audio bitstream, a low frequency effect channel audio bitstream, a left rear channel audio bitstream, and a right rear channel audio bitstream;
the processing unit is used for converting the received multiple single-channel audio bit streams belonging to the same theme identification into multiple single-channel audio signals; the system comprises a wireless interface, a single-channel audio signal processing module, a main audio signal processing module and a main audio signal processing module, wherein the wireless interface is used for synchronously sending corresponding single-channel audio signals belonging to the same subject identification to the wireless interface according to received metadata information and pre-configuration;
a synchronization unit for controlling the synchronous transmission of a plurality of monaural audio signals belonging to the same subject identifier according to the received metadata information and the pre-configuration;
and the wireless interface is used for outputting a plurality of different single-sound-channel audio signals belonging to the same theme identification to the corresponding wireless loudspeaker box in a wireless mode.
In the audio gateway device, a further technical solution is that the second network communication unit further includes at least one of the following: WIFI module, 5G module and/or net gape.
In the audio gateway device, a further technical solution is that the wireless interface includes a first bluetooth interface, a second bluetooth interface and/or a third bluetooth interface;
the first Bluetooth interface is used for outputting first sound channel audio signals belonging to the same theme identification to a first wireless sound box in a wireless mode; the second wireless sound box is used for outputting a second channel audio signal belonging to the same theme identification in a wireless mode;
the second Bluetooth interface is used for outputting the audio signals belonging to the third sound channel to a third wireless sound box in a wireless mode; the fourth wireless sound box is used for outputting the fourth channel audio signals belonging to the same theme identification in a wireless mode;
the third Bluetooth interface is used for outputting the audio signal belonging to the fifth sound channel to a fifth wireless sound box in a wireless mode; and the sixth wireless loudspeaker box is used for outputting the sixth sound channel audio signals belonging to the same theme identification in a wireless mode.
In the audio gateway apparatus, when the multi-channel is 5.1 channels, the pre-configuration is:
the first sound channel audio signal is a left sound channel audio signal, and the first wireless sound box is a left front wireless sound box;
the second channel audio signal is a right channel audio signal, and the second wireless sound box is a right front wireless sound box;
the third sound channel audio signal is a left surround audio signal, and the third wireless sound box is a left surround wireless sound box;
the fourth sound channel audio signal is a right surround audio signal, and the fourth wireless sound box is a right surround wireless sound box;
the fifth sound channel audio signal is a middle sound channel audio signal, and the fifth wireless sound box is a middle wireless sound box;
the sixth sound channel audio signal is a low-frequency effect sound channel audio signal, and the sixth wireless sound box is a bass wireless sound box.
The invention also provides a cloud audio processing platform, which comprises:
the first network communication unit is used for receiving an audio playing request, wherein the audio playing request at least comprises a subject name and a subject identifier; transmitting a plurality of single sound channel audio bit streams and metadata information which belong to the same subject identification;
a decoding unit for splitting a multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information, wherein the metadata information includes: theme identification, sound track quantity and time synchronization information;
the processing unit is used for obtaining a multichannel audio bit stream corresponding to the audio playing request according to the audio playing request; instructing said decoding unit to divide said multi-channel audio bitstream into a corresponding number of mono audio bitstreams;
and the buffer library is used for buffering the single-channel audio bit stream which belongs to the same theme identification and is decoded by the decoding unit and corresponding metadata information.
A multi-channel audio playing system based on cloud comprises the audio gateway device and the cloud audio processing platform.
Compared with the prior art, the invention has the following beneficial effects:
the playing system of the invention processes the multi-channel audio to obtain a plurality of single-channel audio signals, and sends the single-channel audio signals to the wireless sound box through different interfaces, thereby realizing the decoding and playing of the multi-channel audio and providing the high-quality music or video listening effect under the condition of low cost.
Drawings
FIG. 1 is a block diagram of one embodiment of a cloud-based multi-channel audio playback system of the present invention;
100-a cloud audio processing platform; 102-an audio source; 104-a network; 106-a user equipment; 108-an audio gateway device; 110A-a first wireless sound box; 110B-a second wireless loudspeaker; 110F-sixth wireless sound box.
FIG. 2 is a block diagram of one embodiment of a cloud audio processing platform of the present invention;
200-a processing unit; 202-a first network communication unit; 204-a decoding unit; 206-cache library.
FIG. 3 is a block diagram of one embodiment of an audio gateway device of the present invention;
wherein 302-a second network communication unit; 304-a processing unit; 306-a synchronization unit; 308A-a first bluetooth interface; 308B-a second bluetooth interface; 308C-third bluetooth interface.
Detailed Description
The invention will be further elucidated and described with reference to the drawings and examples of the invention.
Fig. 1 shows a block diagram of one embodiment of a cloud-based multi-channel audio playback system including a cloud audio processing platform 100, an audio source 102, an audio gateway device 108, and a wireless enclosure, which in one particular embodiment includes: a first wireless sound box 110A, a second wireless sound box 110B ⦠and a sixth wireless sound box 110F.
The audio source 102 is a repository of audio files, which may be provided by an audio service provider.
The cloud audio processing platform 100 is connected to a user device 106 and an audio gateway device 108 via a network 104. The cloud audio processing platform 100 may also be connected with an audio source 102.
The cloud audio processing platform 100 is configured to split a multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information, wherein the metadata information includes, but is not limited to: theme identification, soundtrack number, time synchronization information.
A theme represents the audio portion of a song, music, or some video; the theme identification may uniquely identify an audio portion of a song, music, or a video.
The mono audio bit stream is any one of the following: a left channel audio bitstream, a right channel audio bitstream, a center channel audio bitstream, a left surround channel audio bitstream, a right surround channel audio bitstream, a low frequency effects channel audio bitstream, a left rear channel audio bitstream, and a right rear channel audio bitstream.
The mono audio bitstream belonging to the same subject identification and the corresponding metadata information are sent to the audio gateway device 108 via the network 104.
The network is any one of the following items: internet, 5G network, 4G network.
An audio gateway device 108, configured to synchronously generate a plurality of corresponding monaural audio signals according to the received plurality of monaural audio bit streams belonging to the same topic identifier and corresponding metadata information; and the different monaural audio signals belonging to the same subject identification are sent to the corresponding wireless sound boxes through different wireless interfaces.
In the preferred embodiment of the present invention, the wireless interface is a bluetooth interface; the wireless sound box is a Bluetooth sound box.
The user device 106 includes an electronic device with computing capability and a human-computer interface, such as a smart phone, a tablet computer, a portable device, and a computer. Which is connected to the audio gateway device 108 and the cloud audio processing platform 100 through the network 104, and is used for controlling the operation of the audio and audio gateway device 108 by the user.
The wireless speakers interact with the audio gateway device 108 in a bluetooth manner, and each wireless speaker is connected to a different channel through a different wireless interface of the audio gateway device 108. Each wireless loudspeaker receives a different mono audio signal.
Fig. 2 shows a block diagram of the cloud audio processing platform 100, which includes:
a first network communication unit 202, configured to receive an audio playing request, where the audio playing request at least includes a topic name and a topic identifier; transmitting a plurality of single sound channel audio bit streams and metadata information which belong to the same subject identification;
a decoding unit 204 for dividing the multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information, wherein the metadata information comprises: theme identification, sound track quantity and time synchronization information;
a processing unit 200, configured to obtain, according to the audio playing request, a multi-channel audio bitstream corresponding to the audio playing request; instructing said decoding unit to divide said multi-channel audio bitstream into a corresponding number of mono audio bitstreams;
and the buffer library 206 is used for buffering the single-channel audio bit stream which belongs to the same subject identifier and is decoded by the decoding unit and corresponding metadata information.
Fig. 3 shows a block diagram of a specific embodiment of an audio gateway apparatus, comprising:
a second network communication unit 302 for receiving a mono audio bitstream and corresponding metadata information; wherein the metadata information includes: theme identification, sound track quantity and time synchronization information; the mono audio bit stream is any one of the following: a left channel audio bitstream, a right channel audio bitstream, a center channel audio bitstream, a left surround channel audio bitstream, a right surround channel audio bitstream, a low frequency effect channel audio bitstream, a left rear channel audio bitstream, and a right rear channel audio bitstream;
a processing unit 304, configured to convert the received multiple mono audio bitstreams belonging to the same topic identification into multiple mono audio signals; the system comprises a wireless interface, a single-channel audio signal processing module, a main audio signal processing module and a main audio signal processing module, wherein the wireless interface is used for synchronously sending corresponding single-channel audio signals belonging to the same subject identification to the wireless interface according to received metadata information and pre-configuration;
a synchronization unit 306, configured to control synchronous transmission of multiple monaural audio signals belonging to the same topic identifier according to the received metadata information and a pre-configuration;
and the wireless interface is used for outputting a plurality of different single-sound-channel audio signals belonging to the same theme identification to the corresponding wireless loudspeaker box in a wireless mode.
According to an embodiment of the present invention, the wireless interface includes:
the first bluetooth interface 308A is configured to output a first sound channel audio signal belonging to the same theme identifier to the first wireless sound box 110A in a wireless manner; the second wireless sound box 110B is used for outputting a second channel audio signal belonging to the same theme identification in a wireless mode;
the second bluetooth interface 308B is configured to output the audio signal belonging to the third sound channel to the third wireless sound box 110C in a wireless manner; the fourth wireless loudspeaker 110D is configured to output a fourth channel audio signal belonging to the same theme identifier in a wireless manner;
the third bluetooth interface 308C is configured to output the audio signal belonging to the fifth channel to the fifth wireless sound box 110E in a wireless manner; and is configured to output the sixth audio channel audio signal belonging to the same theme identification through the sixth wireless loudspeaker 110F in a wireless manner.
According to a preferred embodiment of the present invention, the second network communication unit 302 further comprises at least one of the following: WIFI module, 5G module and/or net gape.
When the multi-channel is 5.1 channels, the pre-configuration is as follows:
the first sound channel audio signal is a left sound channel audio signal, and the first wireless sound box is a left front wireless sound box;
the second channel audio signal is a right channel audio signal, and the second wireless sound box is a right front wireless sound box;
the third sound channel audio signal is a left surround audio signal, and the third wireless sound box is a left surround wireless sound box;
the fourth sound channel audio signal is a right surround audio signal, and the fourth wireless sound box is a right surround wireless sound box;
the fifth sound channel audio signal is a middle sound channel audio signal, and the fifth wireless sound box is a middle wireless sound box;
the sixth sound channel audio signal is a low-frequency effect sound channel audio signal, and the sixth wireless sound box is a bass wireless sound box.
A cloud-based multi-channel audio playing method, comprising the steps of:
the cloud audio processing platform 100 divides the multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information, wherein the metadata information includes: theme identification, sound track quantity and time synchronization information;
transmitting the mono audio bit stream and corresponding metadata information belonging to the same subject identification to the audio gateway device 108 through the network 104;
the audio gateway device 108 synchronously generates a plurality of corresponding single-channel audio signals according to the received plurality of single-channel audio bit streams belonging to the same subject identifier and corresponding metadata information;
and sending the plurality of single sound channel audio signals belonging to the same subject identification to corresponding wireless sound boxes through different wireless interfaces.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (9)1. A cloud-based multi-channel audio playing method, characterized by comprising the steps of:
the cloud audio processing platform divides the multi-channel audio bit stream into a corresponding number of mono audio bit streams and metadata information, wherein the metadata information comprises: theme identification, sound track quantity and time synchronization information;
the cloud audio processing platform directly sends the single-channel audio bit stream belonging to the same theme identification and corresponding metadata information to the audio gateway device through the network;
the audio gateway device synchronously generates a plurality of corresponding single-channel audio signals according to a plurality of received single-channel audio bit streams belonging to the same subject identification and corresponding metadata information;
and sending the plurality of single sound channel audio signals belonging to the same subject identification to corresponding wireless sound boxes through different wireless interfaces.
2. The method of claim 1, wherein the mono audio bitstream is any one of: a left channel audio bitstream, a right channel audio bitstream, a center channel audio bitstream, a left surround channel audio bitstream, a right surround channel audio bitstream, a low frequency effects channel audio bitstream, a left rear channel audio bitstream, and a right rear channel audio bitstream.
3. The cloud-based multi-channel audio playback method as recited in claim 1, wherein the wireless interface is a bluetooth interface.
4. An audio gateway apparatus, comprising:
the second network communication unit is used for directly receiving the single-channel audio bit stream and the corresponding metadata information sent by the cloud audio processing platform through the network; wherein the metadata information includes: theme identification, sound track quantity and time synchronization information; the mono audio bit stream is any one of the following: a left channel audio bitstream, a right channel audio bitstream, a center channel audio bitstream, a left surround channel audio bitstream, a right surround channel audio bitstream, a low frequency effect channel audio bitstream, a left rear channel audio bitstream, and a right rear channel audio bitstream;
the processing unit is used for converting the received multiple single-channel audio bit streams belonging to the same theme identification into multiple single-channel audio signals; the system comprises a wireless interface, a single-channel audio signal processing module, a main audio signal processing module and a main audio signal processing module, wherein the wireless interface is used for synchronously sending corresponding single-channel audio signals belonging to the same subject identification to the wireless interface according to received metadata information and pre-configuration;
a synchronization unit for controlling the synchronous transmission of a plurality of monaural audio signals belonging to the same subject identifier according to the received metadata information and the pre-configuration;
and the wireless interface is used for outputting a plurality of different single-sound-channel audio signals belonging to the same theme identification to the corresponding wireless loudspeaker box in a wireless mode.
5. The audio gateway device of claim 4, wherein the second network communication unit further comprises at least one of: WIFI module, 5G module and/or net gape.
6. The audio gateway device of claim 4, wherein the wireless interface comprises a first Bluetooth interface, a second Bluetooth interface and/or a third Bluetooth interface;
the first Bluetooth interface is used for outputting first sound channel audio signals belonging to the same theme identification to a first wireless sound box in a wireless mode; the second wireless sound box is used for outputting a second channel audio signal belonging to the same theme identification in a wireless mode;
the second Bluetooth interface is used for outputting the audio signals belonging to the third sound channel to a third wireless sound box in a wireless mode; the fourth wireless sound box is used for outputting the fourth channel audio signals belonging to the same theme identification in a wireless mode;
the third Bluetooth interface is used for outputting the audio signal belonging to the fifth sound channel to a fifth wireless sound box in a wireless mode; and the sixth wireless loudspeaker box is used for outputting the sixth sound channel audio signals belonging to the same theme identification in a wireless mode.
7. The audio gateway device of claim 6, wherein when the multi-channel is 5.1 channels, the pre-configuration is:
the first sound channel audio signal is a left sound channel audio signal, and the first wireless sound box is a left front wireless sound box;
the second channel audio signal is a right channel audio signal, and the second wireless sound box is a right front wireless sound box;
the third sound channel audio signal is a left surround audio signal, and the third wireless sound box is a left surround wireless sound box;
the fourth sound channel audio signal is a right surround audio signal, and the fourth wireless sound box is a right surround wireless sound box;
the fifth sound channel audio signal is a middle sound channel audio signal, and the fifth wireless sound box is a middle wireless sound box;
the sixth sound channel audio signal is a low-frequency effect sound channel audio signal, and the sixth wireless sound box is a bass wireless sound box.
8. A cloud audio processing platform, comprising:
the first network communication unit is used for receiving an audio playing request, wherein the audio playing request at least comprises a subject name and a subject identifier; transmitting a plurality of single sound channel audio bit streams and metadata information which belong to the same subject identification;
a decoding unit for splitting a multi-channel audio bitstream into a corresponding number of mono audio bitstreams and metadata information, wherein the metadata information includes: theme identification, sound track quantity and time synchronization information;
the processing unit is used for obtaining a multichannel audio bit stream corresponding to the audio playing request according to the audio playing request; instructing said decoding unit to divide said multi-channel audio bitstream into a corresponding number of mono audio bitstreams;
and the buffer library is used for buffering the single-channel audio bit stream which belongs to the same theme identification and is decoded by the decoding unit and corresponding metadata information.
9. A multi-channel cloud-based audio playing system, comprising the audio gateway device of any one of claims 4 to 7 and the cloud audio processing platform of claim 8.
CN201710656991.2A 2017-08-03 2017-08-03 Multi-channel audio playing method and system based on cloud and audio gateway device Active CN107277691B (en) Priority Applications (1) Application Number Priority Date Filing Date Title CN201710656991.2A CN107277691B (en) 2017-08-03 2017-08-03 Multi-channel audio playing method and system based on cloud and audio gateway device Applications Claiming Priority (1) Application Number Priority Date Filing Date Title CN201710656991.2A CN107277691B (en) 2017-08-03 2017-08-03 Multi-channel audio playing method and system based on cloud and audio gateway device Publications (2) Family ID=60075485 Family Applications (1) Application Number Title Priority Date Filing Date CN201710656991.2A Active CN107277691B (en) 2017-08-03 2017-08-03 Multi-channel audio playing method and system based on cloud and audio gateway device Country Status (1) Families Citing this family (7) * Cited by examiner, â Cited by third party Publication number Priority date Publication date Assignee Title CN108319445B (en) * 2018-02-02 2020-05-22 ç»´æ²ç§»å¨éä¿¡æéå ¬å¸ A kind of audio playback method and mobile terminal CN109862475A (en) * 2019-01-28 2019-06-07 Oppo广ä¸ç§»å¨éä¿¡æéå ¬å¸ Audio playing device and method, storage medium and communication terminal CN109857364A (en) * 2019-01-28 2019-06-07 Oppo广ä¸ç§»å¨éä¿¡æéå ¬å¸ Audio frequency playing method and device, storage medium, communication terminal CN113973259A (en) * 2020-07-22 2022-01-25 é¿éå·´å·´éå¢æ§è¡æéå ¬å¸ Audio processing method, device, computing equipment and medium CN114157942B (en) * 2021-11-30 2024-03-26 广å·çªç¦ºå·¨å¤§æ±½è½¦é³å设å¤æéå ¬å¸ Method and system for controlling sound system of real wireless stereo CN115278510A (en) * 2022-08-02 2022-11-01 çè§ç»(ä¸æµ·)ç§ææéå ¬å¸ Wireless super multi-channel holographic sound method, equipment and medium with internet of things card CN119012079A (en) * 2024-10-25 2024-11-22 ä¸å¾·è声ç§æ(ç æµ·)æéå ¬å¸ Multichannel audio playing control method based on DSP operation Citations (6) * Cited by examiner, â Cited by third party Publication number Priority date Publication date Assignee Title CN103067848A (en) * 2012-12-28 2013-04-24 å京å°ç±³ç§ææéè´£ä»»å ¬å¸ Multichannel method, device and system for achieving playing sounds CN203167254U (en) * 2013-04-27 2013-08-28 æ å·ä¸æçµåæéå ¬å¸ Sound system connected through Bluetooth CN104036817A (en) * 2013-03-05 2014-09-10 èæ³(å京)æéå ¬å¸ Audio playing method, device and electronic equipment CN104125534A (en) * 2013-07-18 2014-10-29 ä¸å½ä¼ åªå¤§å¦ Synchronous multi-channel audio recording and playing method and system CN104426832A (en) * 2013-08-19 2015-03-18 ä¸å ´é讯è¡ä»½æéå ¬å¸ Multi-terminal multichannel independent playing method and device CN205622849U (en) * 2016-04-14 2016-10-05 å¨æå Portable multitrack surround sound wireless sound systemRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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