A receiver requires MP3
Use the source-specific M4A, WAV or FLAC converter when its decision guidance matches your file.
Convert
Audio conversion tools
Start with the application that must open the result. MP3 is the broad delivery choice, WAV is straightforward for editing, FLAC preserves decoded samples, and M4A or Opus can be efficient when the receiver supports them. Conversion may increase file size and any lossy-to-lossy change can add artifacts, so keep the best source.
Choose by the next destination
You need an editing copy
Decode MP3 to 16-bit PCM WAV for software compatibility, without expecting lost detail to return.
You are comparing several outputs
Use the format converter and verify both codec and container support in the destination.
Choose a real codec and container conversion for compatibility, editing or delivery—not a renamed extension.
Before converting
- Identify the source codec, not only its filename extension.
- Keep the original when the output is lossy.
- Avoid raising sample rate or bitrate to imply recovered quality.
- Test metadata and playback in the receiving application.