Method and device for synchronizing audio playback

An audio playback and synchronization device technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of signal interference, transmission distance, signal attenuation, multi-device playback cannot be synchronized, etc.

Active Publication Date: 2019-03-26
ACTIONS ZHUHAI TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are many uncertainties in wireless transmission, causing multi-device playback to be out of sync
For example, due to signal interference or excessive transmission distance, signal attenuation and instability cause the sink device to fail to receive audio data in time, or cause packet loss, etc.
The scene where multiple devices play different channels has strict time requirements. The traditional interactive method cannot achieve high precision and will cause playback deviation.

Method used

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  • Method and device for synchronizing audio playback
  • Method and device for synchronizing audio playback
  • Method and device for synchronizing audio playback

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Embodiment Construction

[0029] In the embodiment of the present application, the synchronization of multi-device playback during wireless transmission can be realized according to the collection and adjustment of multi-device audio data.

[0030] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0031] figure 1 It exemplarily shows a system architecture diagram applicable to the embodiment of the present application, which includes an audio source device and one or more audio devices. The audio source device can send audio data to the audio device, and the audio device can receive audio data. domain data for playback, and further audio data can be sent to other audio devices. The audio source device can be a mobile phone, a computer, or the audio source can also come from a memory card (such as an SD card). The audio equipment can be headphones, speakers. The audio source device can be directly connected to each audio device, ...

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Abstract

The application discloses a method and device for synchronizing audio playback. In the application, the method comprises the following steps: at a preset time point, adjusting the playback sampling rate of the subsequent audio equipment and/or the first audio equipment according to the statistical result of the audio data playback status of subsequent audio equipment and the statistical result ofthe audio data playback status of first audio equipment; and if the audio data of the subsequent audio equipment and the first audio equipment are synchronously played after adjusting the playback sampling rate of the subsequent audio equipment and/or the first audio equipment according to the statistical result of the audio data playback status of the subsequent audio equipment and the statistical result of the audio data playback status of the first audio equipment, adjusting the playback sampling rate of the audio equipment with adjusted playback sampling rate in the subsequent audio equipment and the first audio equipment back to the playback sampling rate at the preset time point.

Description

technical field [0001] The present application relates to the field of wireless audio, and in particular to an audio playback synchronization method and device. Background technique [0002] When audio data is transmitted between devices, the devices can be defined as the source end and the sink end. For example, mobile phones and computers can be source end devices (also called audio source devices), and earphones and speakers can be sink end devices (also called is an audio device), the source device sends the audio data to the sink device for playback. A common situation is that there is one source end and multiple sink ends wirelessly transmitting audio data, and multiple sink end devices play the received audio data synchronously. [0003] However, there are many uncertainties in wireless transmission, resulting in the inability to synchronize multi-device playback. For example, due to signal interference or excessive transmission distance, signal attenuation and inst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/41H04N21/43H04N21/4363H04N21/439
CPCH04N21/4126H04N21/4307H04N21/43637H04N21/439
Inventor 柯海涛
Owner ACTIONS ZHUHAI TECH CO
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