Created
April 13, 2023 14:06
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| from mp4 to wav format `ffmpeg -i <infile> -ac 2 -f wav <outfile>` | |
| join wav files `ffmpeg -i 1.wav -i 1.wav -i 1.wav -i 1.wav \ | |
| -filter_complex '[0:0][1:0][2:0][3:0]concat=n=4:v=0:a=1[out]' \ | |
| -map '[out]' output.wav` |
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