Convert Advanced Audio Coding (.aac) to iPad Audio (.ipad-audio) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .aac 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.
AAC is already the native audio format on iPad — Apple chose it as the default codec for iTunes Store purchases, Apple Music streaming, and iOS recording. The iPad Audio preset optimizes AAC encoding parameters to match iPad's hardware decoder capabilities exactly, ensuring smooth playback, minimal battery drain, and correct metadata display in the Music app and Files app.
While iPad plays most AAC files, some AAC variants can cause issues. Files encoded with HE-AACv2 parametric stereo, non-standard sample rates (like 22.05 kHz), or wrapped in unusual containers (ADTS raw streams, MKV) may not play correctly or may drain the battery by forcing software decoding. The iPad Audio preset re-encodes to AAC-LC in an M4A container at parameters the iPad's hardware decoder handles natively.
FFmpeg transcodes to AAC-LC at 44.1 kHz stereo with a target bitrate of 256 kbps (Apple's standard quality setting). The output uses the M4A container with proper iTunes-compatible metadata atoms. iPad hardware decoders handle AAC-LC most efficiently, resulting in lower CPU usage and better battery life compared to software-decoded HE-AAC or USAC profiles.
At 256 kbps AAC-LC, the output is audibly transparent for virtually all content. If the source was encoded at a lower bitrate (e.g., 128 kbps HE-AAC), re-encoding at 256 kbps AAC-LC will not improve quality but ensures the iPad's hardware decoder path is used. For sources at 256 kbps AAC-LC already, the conversion introduces negligible generational loss.
| Device | AAC | iPad 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
The iPad Audio preset ensures every AAC file plays natively through iPad's hardware decoder path. Most useful for fixing edge-case compatibility issues and normalizing mixed-source audio libraries.
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| No |
| Funktion | AAC | iPad Audio |
|---|---|---|
| Fulde navn | Advanced Audio Coding | iPad Compatible Audio |
| Filendelse | .aac | .m4a |
| Bedst til | Superior to MP3 | iPad optimized |