Method and device for transmitting audio data stream

An audio data and data transmission technology, applied in the field of streaming media, can solve problems such as increased system complexity, audio lag, and poor user experience, and achieve the effects of avoiding audio stream delay, reducing playback delay, and reducing buffers

Active Publication Date: 2020-08-07
LITTLE BIRD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is too much playback delay when the audio is accompanied by video, it will cause the audio and video playback to be out of sync. Typically, the audio lags behind the video playback, which will bring a bad experience to users
As users can choose more and more audio sources to input, existing audio devices are required to provide support for multiple audio sources. The support of multiple audio sources will inevitably lead to an increase in system complexity and the introduction of more data buffers. To achieve support for multiple audio sources; and the increase of system complexity and the increase of data buffer will directly or indirectly lead to the increase of audio synchronization playback delay
Therefore, the playback delay in the case of audio accompanied by video is an urgent problem to be solved at present

Method used

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  • Method and device for transmitting audio data stream
  • Method and device for transmitting audio data stream
  • Method and device for transmitting audio data stream

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] figure 2 It is a schematic diagram of the implementation flow of an audio data stream transmission method provided by the embodiment of the present invention. The audio data stream transmission method in this embodiment is applied to a group that can play the same audio. In a preferred embodiment of the present invention , the transmission method of the audio data stream mainly includes the following steps:

[0071] Step 201: When the first device detects an input audio source, establish a first virtual input link and a first output link.

[0072] Optionally, the input sound source comes from at least one of the following sound sources:

[0073] Local recording audio source, Bluetooth audio source, audio source input via USB, audio source of video played via AirPlay wireless technology, audio source of video played via DLNA, or others.

[0074] In an optional implementation manner, the first device establishes a first virtual input link and a first output link when d...

Embodiment 2

[0118] image 3 It is a schematic diagram of the implementation flow of another audio data stream transmission method provided by the embodiment of the present invention. The audio data stream transmission method in this embodiment is applied to a group that can play the same audio. In a preferred embodiment of the present invention Among them, the transmission method of the audio data stream mainly includes the following steps:

[0119] Step 301: When the second device detects that the first device in the same group as the second device uses the input sound source detected by the first device as the input sound source of the group, establish a second output link.

[0120] In an optional implementation manner, when the second device detects that the first device in the group uses the local recording audio source of the first device as an input audio source of the group, it establishes a second output link.

[0121] Here, the second device is other devices in the group except ...

Embodiment 3

[0144] Figure 4 The embodiment of the present invention provides a block diagram of the data flow processing flow between the master device and the slave device when the master device plays a local recording source in Multi-room mode, wherein the first device described in Embodiment 1 and Embodiment 2 can be used as The master device, the second device described in Embodiment 1 and Embodiment 2 can be used as a slave device. Such as Figure 4 As shown, in the Multi-room mode, the main device introduces the concept of the first virtual input link and the first output link for the input audio source; the first virtual input link and the first output link are used as the local recording audio source When the input audio source of Multi-room is enabled, the first virtual input link is shown by the dotted arrow in the figure. Specifically, the first virtual input link opens the first audio input device of the main device according to the normal input link, and starts the recordi...

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Abstract

The invention discloses an audio data flow transmission method and an audio data flow transmission device. The audio data flow transmission method comprises steps that when an audio source is detectedby first equipment, a first virtual input link and a first output link are established; based on the first virtual input link, audio data is acquired from au audio input buffer area corresponding tothe audio source, and is disposed in a data source audio buffer area in a filled way; the first equipment is used to acquire the audio data from the data source audio buffer area based on the first output link, and is used to output the audio data via a first audio output buffer area. By adopting the technical scheme provided by the invention, time delay of audio synchronous playing is reduced.

Description

technical field [0001] The invention relates to data processing technology in the field of streaming media, in particular to an audio data stream transmission method and device. Background technique [0002] With the accumulation of social wealth and the acceleration of the pace of life, people put forward higher requirements for an excellent and fast quality of life, and beautiful music is an indispensable part of life. In practice, however, people are increasingly concerned about the experience when audio is accompanied by video. If there is too much playback delay when the audio is accompanied by the video, it will cause the audio and video playback to be out of sync. Typically, the audio lags behind the video playback, which will bring a bad experience to the user. As users can choose more and more audio sources to input, existing audio devices are required to provide support for multiple audio sources. The support of multiple audio sources will inevitably lead to an in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/12
CPCH04R3/12H04R2430/00
Inventor 曾小波王重乐姜斌斌
Owner LITTLE BIRD CO LTD
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