IT to HE-AAC - Online Audio Converter
Convert IT to HE-AAC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About IT to HE-AAC
Convert IT to HE-AAC. IT (Impulse Tracker) sequences samples with filters and envelopes. HE-AAC adds spectral band replication for efficient low-bitrate streaming. Needs an HE-AAC decoder; plain AAC players may play only half the bandwidth..
Why convert IT to HE-AAC?
- Smaller files with HE-AAC lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
IT vs HE-AAC
| Codec | IT | AAC (HE) |
|---|---|---|
| Compression | sequence | lossy |
| Sample behavior | Note events - no audio samples | Quality set by bitrate |
| Typical use | IT (Impulse Tracker) sequences samples with filters and envelopes. | HE-AAC adds spectral band replication for efficient low-bitrate streaming. |
When not to convert IT to HE-AAC
- Skip HE-AAC for archival masters: lossy compression discards detail, so keep the IT original.
- Keep a master copy: repeated exports stack small losses, so archive IT before batch HE-AAC shares.
Limits
Starting point: IT - IT (Impulse Tracker) sequences samples with filters and envelopes. Effects vary by engine, so audition before archiving. Needs an HE-AAC decoder; plain AAC players may play only half the bandwidth. Encode HE-AAC (AAC (HE)) from IT 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.