A system and method for audio synchronous recording and playback based on android system

An audio synchronization and audio technology, applied in the field of communication, can solve problems such as high delay, and achieve the effect of reducing delay

Active Publication Date: 2020-07-31
NANJING ZHONGXING SOFTWARE
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Problems solved by technology

[0004] In order to solve the above technical problems, embodiments of the present invention provide a system and method for synchronous recording and playback of audio based on the Android system, which solves the problem of high delay in the native audio system based on the Android system in the prior art

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  • A system and method for audio synchronous recording and playback based on android system
  • A system and method for audio synchronous recording and playback based on android system
  • A system and method for audio synchronous recording and playback based on android system

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Embodiment Construction

[0037] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038] Such as image 3 As shown, the embodiment of the present invention provides a kind of audio synchronous recording and playback system based on the Android system, including: the audio customization service subsystem 11 and the audio customization hardware abstraction subsystem 12 arranged in the application framework layer of the Android system, wherein, Both the audio customization service subsystem 11 and the audio customization hardwa...

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Abstract

Disclosed are a system and method for synchronous audio recording and playing, and a storage medium. The system comprises: an audio customization service sub-system and an audio customization hardware abstraction sub-system, wherein the audio customization service sub-system and the audio customization hardware abstraction sub-system are both independent of a native audio system of an Android system. The audio customization hardware abstraction sub-system is configured to invoke a drive program of a lower-layer sound-recording device to record audio data, and invoke a drive program of a lower-layer sound-playing device to play mixed audio data. The audio customization service sub-system is configured to receive a synchronous recording and playing command sent by an application program module, control, according to the synchronous recording and playing command, the audio customization hardware abstraction sub-system so as to start the sound-recording device and the sound-playing device, and read audio data recorded by the audio customization hardware abstraction sub-system and perform audio mixing processing thereon to obtain the mixed audio data.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an Android system-based audio synchronization recording and playback system and method. Background technique [0002] In the prior art, the synchronous recording and playback of audio in the Android system is realized on the basis of hardware mixing or digital signal processing (Digital Signal Processing, DSP for short). The shortcoming of the audio synchronization recording and playback delay developed on the Android platform is basically inherited from the congenital deficiency of the Linux system. The primary reason for audio delay comes from the underlying drivers. The Android system uses the Hardware Abstraction Layer (HAL) for application architecture and driver communication. The lowest-level audio compilation drivers are still based on the Linux kernel, and most of them use the advanced Linux kernel in the Linux kernel. Sound Architecture (Advanced Linux Sound Arc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/4401
CPCG06F9/4411G06F9/44
Inventor 金志涛
Owner NANJING ZHONGXING SOFTWARE
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