voice_speak
shallowcom.tomorrowlives/engines · Verify this server
Synthesises a line of English as a 44.1 kHz WAV with the engine's own voice. The voices are synthesised by the engine, never cloned from a recording, and no voice can be uploaded. seed varies the voice; woman, age (0 to 1) and machine shape it; speed (0.5 to 2) sets how fast it speaks (1 is the speaker's own); rate sets the sample rate. Every line comes back at one loudness (level_db, default -16 dBFS of speech, so lines from different voices sit together on a timeline and none clips; level_db false leaves the voice's own level) and with its silence trimmed to a breath either side (trim false keeps the voice's half-second tail). text is at most 1000 characters, and a line that presents itself as spoken by a real, famous person is refused. Costs 1 unit.
1 trials · measured today
voice_speak scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against com.tomorrowlives/engines, measured 20 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-20 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
Embed this score
Available for every tool, scored or not — not a verification perk. Always links back to this page.
[](https://vouch.tools/tools/c871cf27-b94d-40a2-843a-979f2e6813d4)