Question 1

Will compressing audio upload the files?

Accepted Answer

No. Compression is done locally in your browser, audio never leaves your device and is not uploaded to any server.

Question 2

Does compression lose audio quality?

Accepted Answer

Yes, there will be some loss. Compression reduces size by lowering bitrate, which is lossy. I suggest choosing the lowest bitrate that meets your needs to balance size and quality; for lossless, use the 'Audio Format Converter' to convert to FLAC.

Question 3

Why did the compressed file become larger?

Accepted Answer

If the original file already has a low bitrate or is in a lossy format and you choose a higher bitrate, the file may not shrink or even increase in size. Please select a target bitrate lower than the original.

Question 4

What bitrate should I choose?

Accepted Answer

For music, 128–192 kbps is recommended; for podcasts/voice, 64–96 kbps is sufficient. Opus performs especially well at low bitrates.

Audio Compression

FAQ