voice_audition_unavailable
Admin console: the staff voice bench is not configured in this deployment. Synthesis lives on the voice runtime - the only process holding a TtsProvider - and this API proxies it, so both VOCAPABLE_VOICE_RUNTIME_AUDITION_URL and VOCAPABLE_VOICE_RUNTIME_AUDITION_TOKEN must be set. Empty means unavailable rather than a silent empty player.
Problem shape
Every non-2xx response is an RFC 9457 application/problem+json body. The type URI below is stable and machine-matchable, so branch on the final path segment (the code) and treat the status as redundant confirmation. See the error-handling guide.
{
"type": "https://docs.vocapable.com/errors/voice_audition_unavailable",
"title": "…",
"status": 503,
"detail": "…",
"instance": "/v1/…"
}