Android downsample code for reducing audio sampling frequency
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Android
Use Android audiorecord to record PCM files. The Android SDK ensures that the sampling frequency supported on all devices is only 44100HZ. Therefore, there are several ways to obtain PCM data of other sampling frequencies: 1. Try the available sampling frequency on the device, 2. Convert the sampling frequency after 44.1k sampling.
There are many ways to convert the sampling frequency. At present, I use SSRC, and the effect is very good.
8000 in the above code is the target sampling frequency. SSRC official website: http://shibatch.sourceforge.net/ JSSRC： https://github.com/hutm/JSSRC
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