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Watermark

The file you receive is already marked.

Every delivered audio file carries an inaudible watermark. That is the safety rule: unmarked model audio is never what comes back.

You receive that file, with X-Timbrelay-Watermark: applied.

Safety here means a simple rule: the only audio returned is audio that already carries the watermark.

What the mark can say

A service mark, confirmed before delivery.

  • A successful response reports X-Timbrelay-Watermark: applied. Only that status means the file was watermarked.
  • A project key can ask whether a WAV matches the service token. The console upload page is not open yet.
  • A match identifies the service token. It does not identify a project, person, or single generation.
IndexTTS-2.5English reference · watermarked sample

Welcome to Timbrelay. Give your words a voice of their own.

Hear the marked file
0:04

Watermark applied before this sample was published.