How can I make extracted audio smaller for sharing?

Choose a compact output such as MP3 or M4A and adjust the available bitrate setting to balance size and quality. For a spoken recording, test a short export before processing the whole video. Lowering bitrate or changing channels can reduce size but may also change the sound; keep the original until the result is suitable.

Steps to follow

1. Check any size or format restriction in the destination app before choosing output settings.
2. Export a short representative passage using MP3 or M4A and a lower available bitrate, then listen on ordinary headphones.
3. Compare clarity and file size, choose acceptable settings and export the full selection without discarding the original.

Speech and music need different checks

For speech, make sure quiet words remain clear; for music, listen for changes in detail or stereo placement. A smaller file is useful only if it still serves its purpose. Trimming unwanted sections can reduce size without lowering the quality of the part you keep.