Voice recording to MP3 guide

Common source formats

Phones and recording apps may save voice files as M4A, AAC, OPUS, WAV, or another container. The best output for sharing is often MP3, but the source format still matters because your browser needs to decode it before conversion.

Clean up before exporting

If a recording has a long silent beginning or ending, trim it first. If the voice is too quiet, use a moderate volume boost. If the file is too large, export a lower bitrate MP3. These small steps make the final file easier for other people to use.

Suggested MP3 quality

• Quick memo: 96 kbps can be enough.
• Lecture or interview: 128 kbps is a solid default.
• Important spoken content: 160 kbps gives a little more room.
• Music mixed with speech: 192 kbps or higher is safer.

Privacy note

Voice recordings can contain personal information. A browser-based workflow reduces unnecessary uploading, but you should still avoid sharing private recordings with people who do not need them.