side aMP3 vs WAV: Which Audio Format Should You Download?
Choose MP3 for a smaller everyday listening file. Choose WAV when an editing workflow specifically needs uncompressed PCM. In Side A, both come from the same prepared audio, so choosing WAV does not unlock a better source recording.
The practical difference
MP3 uses lossy compression to reduce the amount of data needed to represent audio. WAV is a container; Side A uses it for uncompressed PCM samples. That makes our WAV exports larger and gives editing software a straightforward PCM file to work with.
| Detail | MP3 | WAV |
|---|---|---|
| Output | 320 kbps compressed audio | 16-bit, 44.1 kHz stereo PCM |
| Approximate size per minute | 2.4 MB | 10.6 MB |
| Useful for | Listening and smaller downloads | Workflows that request PCM audio |
| Full track and clip support | Yes | Yes |
| Restores missing source detail | No | No |
Sizes use decimal MB and are estimates. MP3 metadata, frame boundaries, and the display units used by your device can change the reported total slightly.
When MP3 is the sensible choice
MP3 is a practical option for keeping a recording on your phone, listening to a spoken excerpt, or saving a clip when storage and transfer size matter. At 320 kbps, a three-minute track is roughly 7.2 MB, compared with around 31.8 MB for Side A’s WAV output.
A high bitrate is an output setting, not a promise about the recording. Noise, distortion, low source quality, and earlier compression can still be audible. Read our 320 kbps quality guide for more detail.
When WAV is useful
Choose WAV if your audio editor, collaborator, or project specification asks for PCM audio at these settings. You can then work with that file without treating it as another compressed delivery copy. Many editing tools also accept MP3, so check your actual requirements before downloading the larger file.
If you control the original recording, use its original high-quality file for serious production work wherever possible. Downloading a compressed online version and expanding it to WAV does not give you the original back.
Why WAV is not automatically higher quality here
Side A’s processing path prepares an MP3 first. Exporting WAV decodes that prepared MP3 into PCM samples. The resulting file has no MP3 compression as its storage format, but its sound still carries the limitations of the source and earlier MP3 conversion.
Describing that download simply as “lossless YouTube audio” would be misleading. A file format can store samples without further lossy compression while those samples still originate from a lossy source.
Choosing a format in Side A
After a track is ready, use Full track format to select MP3 or WAV, name your file, and save. To export an excerpt, choose Trim audio, set the boundaries, and use the separate Clip format selector.
MP3 clips preserve the existing compressed audio and may have slightly different cut boundaries because of MP3 frames. Always listen to the exported clip if the start and end are important. Follow the trimming guide or the WAV walkthrough for the complete steps.
Does renaming .mp3 to .wav convert it?
No. A filename extension describes the format; changing it does not transform the audio data. Use the format selector and download a real export instead.
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