You can use cdparanoia to grab the individual audio tracks "bit-perfect" (without transcoding) first, and then run ffmpeg on them. Using the -B flag will give you the tracks named e.g. track01.wav so you can use a script to batch the resultant files to ffmpeg. Thank you but I'd like to use ffmpeg which is available for both linux and windows I am looking for the correct ffmpeg command line to use with ffmpeg to convert any sound file (any format) to a mono Opus OGG audio file for use with Telegram to send it as a vocal note. This is the MediaInfo of a telegram audio note from the android app: It can be very time consuming to re-encode the correct stream. FFmpeg can help with this situation: ffmpeg -i input.webm -c:v copy -c:a flac output.mkv. This command copies the video stream from input.webm into output.mkv and encodes the Vorbis audio stream into a FLAC. The -c flag is really powerful. NOTE. Do remember to install ffmpeg before you use pydub. For help regarding installation of ffmpeg, you can use this link. Then to install pydub just open your command prompt and type. pip install pydub Then to convert any file from wav to mp3 just use pydub as
MXF is a pain. The default MXF muxer requires video. The -timecode option with MXF requires video.; The mxf_opatom muxer allows just audio, but only mono with 48000 MHz sample rate, so each channel will need to be in its own MXF file.
ffmpeg -f mulaw -ar 8000 -ac 1 -i out.ulaw mulaw_decoded.wav Then upsampled the audio from 8k->16k and play it with vlc: ffmpeg -i mulaw_decoded.wav -ar 16000 upsampled.wav && vlc upsampled.wav But it plays at half speed. Ultimately I'd like to do it all in rust or go, but I can't even get it working locally with just ffmpeg. Thanks in advance.
The --verbose/-v flag must be provided before the convert command. This will enable debugging logs and allow you to monitor progress. For example - to convert the contents of the directory input/, containing files of type .m4a and .flac, outputting to directory output/, converting to type .mp3 run: audioconvert convert input/ output/--output 4GjhS.
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    • convert mp3 to wav ffmpeg