Convert Audio Interchange File Format (.aiff) to iPod Audio (.ipod-audio) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .aiff file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .m4a file when it's ready.
AIFF is Apple's native uncompressed format and plays on all iPod models, but at 10 MB per minute it fills even a 160 GB iPod Classic faster than compressed alternatives. The iPod Audio preset encodes AIFF to AAC-LC at parameters that every iPod model — from the 2001 original to the final iPod Touch — handles through its hardware decoder: 44.1 kHz, stereo, 128-256 kbps in M4A.
An iPod Classic with 160 GB can hold about 16,000 minutes of AIFF (266 hours) versus 80,000 minutes of 256 kbps AAC (1,333 hours). That is a 5x difference in library capacity. For iPod Nano (8-16 GB) and Shuffle (2 GB), the difference between AIFF and compressed audio is even more critical. The iPod Audio preset maximizes songs-per-gigabyte while keeping quality excellent.
FFmpeg encodes AIFF PCM to AAC-LC at configurable bitrate (128-256 kbps), 44.1 kHz stereo, in M4A container. For iPod Shuffle (no screen, minimal storage), 128 kbps is recommended. For iPod Classic (large storage, good DAC), 256 kbps maximizes quality. The Wolfson and Cirrus Logic DACs in iPods resolve AAC at 256 kbps excellently.
First-generation encoding from uncompressed AIFF produces optimal results. At 256 kbps, quality is transparent. At 128 kbps, quality is very good through iPod earbuds. The iPod's DAC quality is good enough to reveal differences at very low bitrates (<96 kbps) but not at 128+ kbps.
| Device | AIFF | iPod Audio |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
AIFF to iPod Audio is about capacity optimization. The quality sacrifice is negligible while the storage gain is transformative, especially on smaller iPod models.
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| No |
| 기능 | AIFF | iPod Audio |
|---|---|---|
| 전체 이름 | Audio Interchange File Format | iPod Compatible Audio |
| 확장자 | .aiff | .m4a |
| 최적 용도 | Lossless quality | iPod optimized |