Convert Apple Lossless Audio Codec (.alac) to iPod Audio (.ipod-audio) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .m4a 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.
ALAC is Apple's lossless audio codec, supported on iPod Touch but requiring software decoding that impacts battery life on older iPod models. iPod Audio produces AAC in M4A — the codec Apple optimized iPod hardware around. The iPod Classic's Wolfson WM8758 and Cirrus Logic CS42L55 DACs include dedicated AAC hardware decoders enabling 30+ hours of continuous AAC playback versus significantly less with software-decoded ALAC.
Converting ALAC to iPod-optimized AAC creates compact, battery-efficient music files from lossless Apple sources. The perfect PCM from ALAC decoding ensures the AAC output achieves maximum quality for the target bitrate.
iPod Classic (the most popular iPod for large music libraries) decodes AAC in hardware but ALAC in software. AAC playback on iPod Classic delivers 30-40 hours battery life; ALAC reduces this to approximately 20 hours. Converting ALAC to AAC extends listening time by 50% or more.
iPod storage is also finite. A 160 GB iPod Classic holding ALAC stores roughly 15,000 songs; the same device with 256 kbps AAC holds 40,000+ songs. For users with large lossless collections, AAC conversion dramatically increases library capacity.
FFmpeg decodes ALAC to perfect PCM and encodes as AAC-LC at 256 kbps in M4A. The shared M4A container means all iTunes metadata — album art, track numbers, genres, gapless flags — transfers identically. The AAC-LC profile at 44.1 kHz targets every iPod model's hardware decoder, from the original 2001 iPod through the iPod Touch 7th generation.
256 kbps AAC from lossless ALAC provides transparent quality through iPod's high-quality Wolfson/Cirrus Logic DAC. The iPod Classic is renowned for its clean audio output — the AAC encoding at 256 kbps is the quality bottleneck, not the playback hardware. From perfect ALAC source, the AAC output is indistinguishable from the original for most listeners.
| Device | ALAC | iPod Audio |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | 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
ALAC to iPod Audio delivers maximum battery life and storage capacity on iPod hardware. Lossless source ensures the best AAC quality through iPod's excellent DAC.
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Funguje všude
Jakýkoli prohlížeč, jakékoli zařízení
| No |
| Vlastnost | ALAC | iPod Audio |
|---|---|---|
| Celý název | Apple Lossless Audio Codec | iPod Compatible Audio |
| Přípona | .m4a | .m4a |
| Nejlepší pro | Lossless | iPod optimized |