ZyXEL Voice Format Audio
Unknownaudio
ZyXEL Voice Audio files were originally developed by Zyxel Communications for the Zyxel Z-Fax modem software application. These files are capable of digitizing speech to transfer data through software such as Z-Fax or VoiceConnect, using compression betweeen 19.2k CPS(ADPCM) and 9.6k CPS (CELP).
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| Extensions | .zvd.zyx.ad2 |
|---|---|
| Signatures | 5a7958454c02 at byte 0 (ZyXEL Voice Format Audio) |
| PRONOM | fmt/1674 |
| Wikidata | Q105854133 |
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From PRONOM, Wikidata. Updated 2026-10-20.