ffmpeg -y -i st00031.mp3 -acodec pcm_s16le -f s16le -ac 2 -ar 16000 16k.pcm
-acodec pcm_s16be: output pcm format, using signed 16 encoding, byte order is big endian (little endian is le);
-ar 8000: sampling rate 8000
-ac 2: number of channels 2
ffmpeg converts mp3 to pcm format, command line
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Origin blog.csdn.net/WANGYONGZIXUE/article/details/106944832
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