What happens when you convert AIFF to Opus
| Compression | Lossless → Lossy |
|---|---|
| Size per minute | AIFF ≈ 10.6 MB → Opus ≈ 1.4 MB at 192 kbps |
| Quality | Lossy encode; 192 kbps is transparent for most listeners, 128 kbps is fine for speech |
| Tags | Title, artist and album tags are copied when the target format supports them |
| Opens in | browsers, Android, WhatsApp and Discord; older players do not |
Sizes are typical values; your files will vary with content and settings.
AIFF Audio Interchange File Format
AIFF is Apple's uncompressed audio format, the Mac equivalent of WAV, used in Logic Pro and GarageBand.
AIFF converterOpus Opus Interactive Audio
Opus is a modern open codec that outperforms MP3 and AAC at low bitrates. WhatsApp voice notes, Discord and WebRTC calls all use Opus.
Opus converterHow to use the AIFF to Opus Converter
- 1
Choose a AIFF file or drop it onto the page.
- 2
Review the audio options. The defaults suit most files.
- 3
Click Convert and download your Opus when processing finishes.
Why convert AIFF to Opus?
AIFF files come from Logic Pro, GarageBand, sample packs and audio exported on a Mac. Files are large and Windows apps prefer WAV. Choose Opus for voice recordings and low bitrates, where it sounds better than MP3 or AAC at the same size.
Frequently asked questions
Will the Opus lose quality?
Opus uses lossy compression, so some fine detail is discarded to make the file smaller. At the default quality setting the difference is very hard to see. Raise the quality slider if you need the result to stay closer to the AIFF original.
Will the Opus be smaller than the AIFF?
Usually yes: a minute of audio takes about 10.6 MB as AIFF and about 1.4 MB as Opus at 192 kbps. Lower the bitrate to shrink it further; 128 kbps is plenty for speech.
Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.