What happens when you convert AIFF to AAC
| Compression | Lossless → Lossy |
|---|---|
| Size per minute | AIFF ≈ 10.6 MB → AAC ≈ 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 | phones, browsers and most players; some editors want it inside M4A |
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 converterAAC Advanced Audio Coding
AAC is the successor to MP3 and the audio codec inside most MP4 videos, YouTube and Apple Music. A raw .aac file is an ADTS stream without a container.
AAC converterHow to use the AIFF to AAC 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 AAC when processing finishes.
Why convert AIFF to AAC?
AIFF files come from Logic Pro, GarageBand, sample packs and audio exported on a Mac. Files are large and Windows apps prefer WAV. Choose AAC when a player, hardware device or editor expects a raw AAC stream.
Frequently asked questions
Will the AAC lose quality?
AAC 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 AAC be smaller than the AIFF?
Usually yes: a minute of audio takes about 10.6 MB as AIFF and about 1.4 MB as AAC 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.