Voices and languages

Every synthesis request names a language, and optionally a voice. The two are independent: a voice is an identity, not a recording, so the same voice id resolves to that voice speaking whichever language you asked for. The same voice id with "lang": "hi" and with "lang": "ta" gives the same speaker in different languages. You never send a language-specific voice name, just the voice id plus your target language.

Languages

Voices

Every named voice is available in all ten languages. The id is the same in each, so you send the id plus your target language and get the same speaker reading whichever language you asked for.

voice is optional. Omit it and the request uses default_female for the language you asked for.

Each voice carries its own speaking-rate default, so two voices reading the same text at the same speed setting will not run for exactly the same duration. Omit speed to use the voice’s own.

Using a voice

{
  "text": "आपके खाते में पाँच हज़ार रुपये हैं।",
  "lang": "hi",
  "voice": "default_female",
  "output_format": "24000:pcm16"
}

{
  "type": "hello",
  "lang": "hi",
  "voice": "default_female",
  "output_format": "24000:pcm16",
  "auth_token": "bd_xxxxxxxxxxxx.xxxxxxxx…"
}

An unrecognised voice id is rejected as a 400. Treat voice ids as constants in your code rather than as user input.

Related