Convert MPEG-4 Video (Apple) (.m4v) to Audio Interchange File Format (.aiff) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .m4v 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 .aiff file when it's ready.
M4V, Apple's DRM-capable video container, stores H.264 video with AAC audio — the standard codecs for iTunes Store purchases and Apple TV content. AIFF (Audio Interchange File Format) is Apple's uncompressed audio format, storing raw PCM data at full CD quality or higher. Converting M4V to AIFF extracts the audio track and decodes it to uncompressed PCM, producing a lossless representation of the sound at the cost of significantly larger file sizes.
AIFF provides bit-perfect, uncompressed audio that professional audio workstations like Logic Pro, Pro Tools, and GarageBand can import directly without any codec overhead. If you need to edit, remix, or master audio extracted from M4V video content on macOS, AIFF is the native uncompressed format that integrates seamlessly with Apple's audio production ecosystem.
FFmpeg decodes the AAC audio stream from the M4V container and outputs it as uncompressed PCM in the AIFF container. The typical output is 16-bit signed big-endian PCM at 44.1 kHz or 48 kHz stereo, matching CD or broadcast quality. Since AIFF stores raw samples, the output file is approximately 10 MB per minute of stereo audio at 44.1 kHz/16-bit. The conversion is one-directional in terms of quality — the AAC lossy compression cannot be undone, but no further quality loss occurs.
The AIFF output preserves every detail present in the AAC audio track, but cannot recover information that AAC compression already discarded. A 256 kbps AAC track decoded to AIFF will sound identical to the AAC — the difference is that AIFF is uncompressed and editable without further generation loss. File sizes will be 5-10x larger than the AAC source.
| Device | M4V | AIFF |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
M4V to AIFF conversion is ideal for professional audio workflows on macOS. While the conversion expands file size considerably, AIFF provides the uncompressed, editor-friendly format that audio professionals require for production work.
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| Caracteristică | M4V | AIFF |
|---|---|---|
| Nume complet | iTunes Video | Audio Interchange File Format |
| Extensie | .m4v | .aiff |
| Cel mai potrivit pentru | Apple ecosystem | Lossless quality |