Audio Compressor: Reduce Audio File Size Online
Need to make an audio file smaller? Filenivo’s audio compressor, sometimes called an audio resizer, reduces the size of voice recordings, podcasts and music so they upload faster and fit within email and messaging limits.
Drag and drop an audio file here
or browse your files
MP3, WAV, M4A, OGG, AAC, FLAC — any size
Frequently Asked Questions
Will compressing audio reduce the sound quality?
Lower bitrates remove some audio detail. For speech, 64-96 kbps is usually clear. For music, 128 kbps or higher is a good balance.
What is the difference between lossy and lossless audio?
Lossy formats such as MP3 and AAC discard some data to save space. Lossless formats such as FLAC and WAV keep everything but create larger files.
How can I get an audio file under an email limit?
Lower the bitrate, trim silence or unwanted sections, or convert from WAV to a compressed format before sending.
Is an audio resizer the same as an audio compressor?
People use both terms for tools that make an audio file smaller. The result is a file with a lower size on disk.
Why Use FileNivo?
- 100% Free to Use
- No Registration Required
- Files Never Leave Your Device
- Super Fast Conversion
- Works on Any Device
How to Compress an Audio File
1. Upload your audio file.
2. Choose the quality or target size if the options are shown.
3. Start the compression.
4. Download the smaller audio file and play it to check the sound.
What Makes Audio Files Big?
File size depends on the format and the bitrate. Uncompressed CD-quality WAV audio takes up roughly 10 MB per minute. An MP3 at 128 kbps uses about 1 MB per minute, so converting or compressing can cut the size by around ten times.
Use
Suggested bitrate
Approx. size per minute
Voice, podcasts, lectures
64-96 kbps
0.5-0.7 MB
General music
128-192 kbps
1-1.4 MB
High-quality music
256-320 kbps
1.9-2.4 MB