Practical focus
Use this page when you want a middle target that is less harsh than 10MB but still upload-friendly.
Private browser-based audio compression
Compress Audio to 15MB
Compress audio to 15MB for longer speech, podcast segments, and moderate-quality music clips.
Your audio is compressed locally in your browser. Files are not uploaded to a server.
MP3 / WAV / M4A / AAC / OGG / FLAC inputMP3M4A / AACOGG
File-
Size-
Duration-
Your audio is compressed locally in your browser. Files are not uploaded to a server.
Compression mode
Quick targets
Advanced settings
Select an audio file to begin.
Compression result
Original size-
Compressed size-
Saved-
Output-
Bitrate-
Quick tips
- 15MB gives more quality headroom than 10MB.
- Voice can stay efficient at 64-96 kbps.
- Music should usually remain at 128 kbps or higher if duration allows.
How to use
- Set Target Size to 15MB and compare the estimated bitrate before compressing.
- For lectures, use mono at 64 kbps when duration is long.
- For podcast segments, try 96 kbps first.
- For music clips, keep stereo and avoid dropping below 128 kbps unless the clip is short.
Recommended settings
| Audio content | Practical setting |
|---|---|
| Voice memo | 64-96 kbps mono |
| Lecture | 64 kbps mono |
| Podcast segment | 96 kbps |
| Short music clip | 128-160 kbps |
Supported formats
MP3 works well for a 15MB sharing copy.
AAC is useful for mobile playback; OGG is best when the target is a web or game asset.
Quality vs file size
15MB is often enough for a cleaner spoken-word file than a 10MB target.
For music, quality depends on duration: a short clip can keep 128-160 kbps, while a long track may still need compromise.
Privacy and local processing
Compression runs in your browser, so the original audio is not uploaded to a server.
Large files can still be slow because decoding and encoding use your device memory and CPU.
Things to watch
- If the target bitrate looks extremely low, do not force a music file into 15MB.
- Use mono only when stereo width is not important.
FAQ
Is 15MB a good target size for audio?
Yes for many voice recordings, course clips, and medium-length sharing copies.
Can I keep good quality under 15MB?
Often for speech and short music clips, but not always for long stereo music.
How long can an MP3 be at 15MB?
It depends on bitrate. Lower bitrate fits more minutes but reduces quality.
Should I use mono for 15MB?
Use mono for voice; keep stereo for music when possible.
What if my file is still larger than 15MB?
Target 14.5MB, lower bitrate, choose mono for voice, or shorten the file.