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S3M to ALAC (M4A) - Online Audio Converter
Convert S3M to ALAC (M4A) online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert S3M to ALAC (M4A)
Drop S3M audio here or click to select
S3M
ALAC (M4A) (ALAC)
About S3M to ALAC (M4A)
Convert S3M to ALAC (M4A). S3M (Scream Tracker 3) sequences 16 digital channels with effects. ALAC is Apple's lossless codec stored inside M4A files. Stays bit-identical to WAV while tagging like AAC..
Why convert S3M to ALAC (M4A)?
- Larger files than lossy shares with ALAC (M4A) lossless quality.
- Keep quality where supported.
- Private, no upload - runs in your browser.
S3M vs ALAC (M4A)
| Codec | S3M | ALAC |
|---|---|---|
| Compression | sequence | lossless |
| Sample behavior | Note events - no audio samples | Full quality kept |
| Typical use | S3M (Scream Tracker 3) sequences 16 digital channels with effects. | ALAC is Apple's lossless codec stored inside M4A files. |
When not to convert S3M to ALAC (M4A)
- Skip ALAC (M4A) for the smallest share: lossless output stays large, so prefer a lossy target when sending S3M files.
- Keep a master copy: repeated exports stack small losses, so archive S3M before batch ALAC (M4A) shares.
Limits
Starting point: S3M - S3M (Scream Tracker 3) sequences 16 digital channels with effects. Stereo panning quirks differ by player; check the mix. Stays bit-identical to WAV while tagging like AAC. Encode ALAC (M4A) (ALAC) from S3M at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert S3M to ALAC (M4A)?
Drop your S3M file onto this page, choose quality and codec settings, then click Convert. The result downloads as ALAC (M4A) instantly. All processing runs in your browser.
What codec is used for ALAC (M4A)?
The default codec for ALAC (M4A) is ALAC. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.