VOC to HE-AAC - Online Audio Converter
Convert VOC to HE-AAC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About VOC to HE-AAC
Convert VOC to HE-AAC. VOC is Creative's Sound Blaster voice format with loop markers. 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 VOC to HE-AAC?
- Smaller files with HE-AAC lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
VOC vs HE-AAC
| Codec | PCM 16-bit | AAC (HE) |
|---|---|---|
| Compression | uncompressed | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | VOC is Creative's Sound Blaster voice format with loop markers. | HE-AAC adds spectral band replication for efficient low-bitrate streaming. |
When not to convert VOC to HE-AAC
- Skip HE-AAC for archival masters: lossy compression discards detail, so keep the VOC original.
- Keep a master copy: repeated exports stack small losses, so archive VOC before batch HE-AAC shares.
Limits
Starting point: VOC - VOC is Creative's Sound Blaster voice format with loop markers. Loop markers drop on export; trim manually after conversion. Needs an HE-AAC decoder; plain AAC players may play only half the bandwidth. Encode HE-AAC (AAC (HE)) from VOC 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.