Compress MP3 to OGG

MP3 files are already compressed, but OGG can compress further at a different bitrate. The size reduction is significant for sharing, uploading, and storage.

For email attachments, 128-192kbps works well. For music sharing, use 256-320kbps. AudioUtils lets you drop your file and convert instantly. No upload to a server, no waiting.

Expect a similar file size; the reason to convert is playback and workflow, not disk. MP3 already discarded data; OGG will discard a little more. Pick 192–320 kbps and it won't be audible in normal listening.

Where does a MP3 file even come from? Usually downloads, old rips, and just about every audio file that has ever been emailed. The catch is that MP3 is lossy and built for playback, so editing, production, and some apps and engines want a different format. OGG is the destination because it plays essentially everywhere — game assets and every ordinary phone, browser, and player. Sizes are comparable: MP3 and OGG both sit near 1.4–1.2 MB per stereo minute, so this conversion is about compatibility, not storage. Both MP3 and OGG are lossy, so this pair stacks a second encode — at a generous bitrate it stays inaudible, but if a lossless original of the MP3 exists, encode the OGG from that instead.