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Audio playing method and device

An audio playback and audio data technology, applied in the field of communications, can solve the problems of inability to meet the low-latency requirements of private network services and large playback delays, and achieve the effects of shortening acquisition paths, low-latency playback, and avoiding influences

Pending Publication Date: 2021-03-30
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In the process of implementing the present application, the inventor found that the above-mentioned existing audio data playback scheme has a large playback delay, and thus cannot meet the low-latency requirements of many private network services (such as push-to-talk services)

Method used

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples.

[0035] After the inventor carefully analyzed the audio playback scheme implemented by the existing soundpool, it was found that the scheme has a relatively large time delay because the whole process involves multiple links that need to be processed by the main processor. The processing link is affected by system scheduling, that is, it needs to wait for the CPU time slice of the main processor to decode and store audio data, which results in a relatively long playback delay. Based on this, the embodiment of the present application will consider reducing the impact of system scheduling on audio playback as much as possible, and store the audio data to be played in the audio data processor in advance, and the audio data processor will directly send i...

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Abstract

The invention discloses an audio playing method and device. The method comprises the following steps: storing the audio data of a preset sound in an audio data processor of an intelligent terminal inadvance; and when the intelligent terminal needs to play the sound, enabling the corresponding audio playing program to directly trigger the audio data processor to send the stored corresponding audiodata to an audio decoder for playing. By applying the technical scheme disclosed by the invention, the audio playing time delay can be shortened.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to an audio playback method and device. Background technique [0002] At present, Android (Android), as a free and open-source operating system based on Linux, is widely used in smart terminal devices, such as smart phones, tablet computers, TVs, digital cameras, game consoles and smart watches. [0003] figure 1 It is a schematic diagram of the audio data flow of the prompt sound playing scheme in the existing Android system. The arrows in the figure are used to indicate the audio data transmission path of the prompt sound playback interface (soundpool). Such as figure 1 As shown, in the existing Android system, the audio playback scheme realized by using the prompt tone playback interface mainly includes the following steps: [0004] First, the audio data to be played is decoded by the main processor, and the decoding result is copied to the system kernel (...

Claims

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Application Information

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IPC IPC(8): G06F3/16
CPCG06F3/165
Inventor 温冬寒
Owner CHENGDU TD TECH LTD
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