Mp3: Difference between revisions
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<pre> | <pre> | ||
arecord --device="hw:0,0" --format=S16_LE -c 2 rec.wav | arecord --device="hw:0,0" --format=S16_LE -c 2 rec.wav | ||
ffmpeg -i rec.wav -acodec mp3 rec.mp3 | ffmpeg -i rec.wav -af "highpass=200,lowpass=3000,afftdn" -ss 00:01 -to 00:60 -acodec mp3 rec.mp3 | ||
ffplay rec.mp3 | ffplay rec.mp3 | ||
</pre> | </pre> | ||
Latest revision as of 21:06, 25 March 2023
convert mp4a to mp3
ffmpeg -i inputfile.m4a -acodec libmp3lame -ab 93k outputfile.mp3
record mic on linux and convert it to mp3 with noise filter
arecord --device="hw:0,0" --format=S16_LE -c 2 rec.wav ffmpeg -i rec.wav -af "highpass=200,lowpass=3000,afftdn" -ss 00:01 -to 00:60 -acodec mp3 rec.mp3 ffplay rec.mp3