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MPEG ADTS, layer III, v1, 48 kbps, 48 kHz, MonauralAudio file with ID3 version 2.4.0, contains:MPEG ADTS, layer III, v1, 64 kbps, 48 kHz, MonauralIS
ffmpeg -i 1.wav -ac 1 -ar 48000 -b:a 48k -codec:a libshine -qscale:a 2 1.mp3
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