Use a video converter app or website and choose the audio output format
Open the video in a media player and use the export or convert audio option
Use editing software to extract or render the audio track
Use command-line tools like FFmpeg to save the audio from the video
On mobile, use a file manager or converter app that supports audio extraction
Save the extracted audio as MP3, WAV, AAC, or another audio format
Check that the audio file plays correctly after conversion