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Platform: Rockchip
OS: Android 6.0
Kernel: 3.10.92


Alsa Project上有篇文章,

http://www.alsa-project/main/index.php/FramesPeriods

觉得不错,简单地翻译了下:

FramesPeriods

A frame is equivalent of one sample being played, irrespective of the number of channels or the number of bits. e.g.
一个frame相当于一个采样点,通过channel或者bits计算,例如:
1 frame of a Stereo 48khz 16bit PCM stream is 4 bytes.
48k立体声16bit就是4字节。
1 frame of a 5.1 48khz 16bit PCM stream is 12 bytes.

本文标签: Audiobpsrateperiodsizeframe