In MP3 vs WAV, WAV keeps every bit of the original sound and MP3 trades a little detail for files about ten times smaller. Use WAV for editing, mixing, and archiving. Use MP3 for listening, sharing, and uploading. The MobileStudio Video to MP3 tool saves either format from any video, so you can pick per job.
The short answer
| MP3 | WAV | |
|---|---|---|
| Compression | Lossy | Usually none (PCM) |
| Size per minute, stereo | About 1.4 MB at 192 kbps | About 10 MB |
| Plays everywhere? | Yes | Almost |
| Best for | Listening, sharing, podcasts | Editing, mixing, archiving |
| Editing quality | Loses a little each re-save | No loss |
What is an MP3?
MP3 is a compressed audio format. The Library of Congress describes MP3 as a perceptual codec: it discards parts of the sound you're least likely to notice. At 192 kbps and above, most people can't tell it from the original on everyday speakers and headphones.
What is a WAV file?
WAV (WAVE) is a container that usually holds uncompressed PCM audio, as the Library of Congress explains. Nothing is thrown away, so it's ideal as a master copy. The cost is size: CD-quality stereo uses about 1,411 kbps, roughly 10 MB per minute.
Does WAV sound better than MP3?
Technically yes, practically often no. A 320 kbps MP3 is very hard to tell from WAV in a blind test. The difference shows up when you edit: every time you export an MP3 again, it compresses again and loses a bit more. WAV doesn't.
When should I use WAV?
- Editing in GarageBand, Audacity, Logic, or a video editor.
- Mixing music or podcast tracks.
- Archiving a master copy.
- Sending audio to a professional who'll process it.
When should I use MP3?
- Listening on your phone or in the car.
- Sharing over email or chat.
- Uploading podcasts or voice notes.
- Anything where file size matters.
How big is MP3 vs WAV?
| Format | Per minute (stereo) | One-hour file |
|---|---|---|
| WAV, 44.1 kHz 16-bit | About 10 MB | About 600 MB |
| MP3, 320 kbps | 2.4 MB | 144 MB |
| MP3, 192 kbps | 1.4 MB | 86 MB |
| MP3, 128 kbps | 1 MB | 58 MB |
For a deeper look at bitrates, see what MP3 bitrate should I use.
How do I get MP3 or WAV from a video?
- Open Video to MP3.
- Drop in the video.
- Choose MP3 (pick a bitrate) or WAV.
- Extract and download.
The tool shows the estimated file size before you export. For device-specific steps, see convert video to MP3. Audacity can also convert between the two; its manual lists every export format.
Can you hear the difference between MP3 and WAV?
At 128 kbps, trained listeners often can, especially on cymbals, applause, and reverb tails. At 192 kbps it gets much harder, and at 320 kbps most people guess at chance in blind tests. Your playback gear matters too: phone speakers and Bluetooth earbuds add their own compression, so WAV's advantage mostly disappears there.
What about M4A, AAC, and FLAC?
M4A (AAC) is like MP3 but a bit more efficient, and it's what Apple devices create. FLAC is lossless like WAV but compressed to about half the size. Both are great choices if your apps support them; MP3 and WAV are simply the most universal.
Where MobileStudio fits
Video to MP3 is one of our free tools. MobileStudio itself turns screen recordings into polished app demos. Get MobileStudio.
Quick FAQ
Is WAV higher quality than MP3?
Yes, WAV is lossless. At 320 kbps, MP3 is close enough that most people can't hear a difference.
Should I convert WAV to MP3?
Yes, for sharing and listening. Keep the WAV as your master.
Does converting MP3 to WAV improve quality?
No. It makes the file bigger but can't restore what MP3 removed.
Which is better for a podcast, MP3 or WAV?
Record and edit in WAV, then publish as MP3.
Why is my WAV file so large?
It's uncompressed: about 10 MB per minute of stereo audio.
