Method and apparatus for improving audio quality of android device

An Android and device technology, applied in the direction of sound input/output, data processing input/output process, instruments, etc., can solve the problem that the audio of the sampling rate cannot be played, and achieve the effect of excellent sound quality and flexible calling methods

Inactive Publication Date: 2017-03-22
FUJIAN STAR NET EVIDEO INFORMATION SYST CO LTD
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Problems solved by technology

However, since the Android system audio device can only support audio with one sampling rate for playback at the same time, this solution can only be applied to scenarios where audio streams w

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  • Method and apparatus for improving audio quality of android device
  • Method and apparatus for improving audio quality of android device
  • Method and apparatus for improving audio quality of android device

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049] Android is a free and open-source operating system based on Linux. In the Android audio system framework, it is divided into hardware layer, driver layer and user layer from the bottom up. The entire Android audio processing is mainly implemented in the user layer. From the bottom up, the user layer can be subdivided into hardware abstraction layer (HAL, Hardware Abstraction Layer), runtime library layer, application framework layer and application layer. The...

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Abstract

The invention belongs to the technical field of android audio playing, and particularly relates to a method and an apparatus for improving audio quality of an android device. The method for improving the audio quality of the android device comprises the following steps of obtaining a play sampling rate SR0 of a hardware abstraction layer of the android device; creating an audio stream instance according to the play sampling rate SR0; judging whether a sampling rate SR1 of a currently played audio is consistent with the play sampling rate SR0 or not; if the sampling rates are non-consistent, performing high-quality re-sampling play processing on the played audio; and if the sampling rates are consistent, performing play processing on the played audio. Through the method, self-defined high-quality re-sampling play processing in an android system can be realized, so that the problem of poor audio quality caused by adoption of a default re-sampling method of the android system is avoided.

Description

technical field [0001] The invention belongs to the technical field of Android audio playback, and in particular relates to a method and device for improving the sound quality of Android devices. Background technique [0002] With the continuous popularization of smart devices, the market share of the Android system continues to expand, becoming the largest smart device operating system and being adopted by a large number of multimedia devices. However, the sound quality of Android devices has been the focus of external criticism for a long time. Due to the implementation of the Android audio framework code, the sampling rate of the hardware abstraction layer of Android devices is fixed, usually 44.1KHz. The sampling rate is generally 44.1KHz (typical sampling rate in the CD era) or 48KHz (typical sampling rate after the DVD era), and higher quality sampling rates such as 96KHz or 192KHz. When AudioFlinger in the Android audio framework receives audio, it will judge whether...

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Application Information

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IPC IPC(8): G06F3/16
CPCG06F3/165
Inventor 郑远林鎏娟
Owner FUJIAN STAR NET EVIDEO INFORMATION SYST CO LTD
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