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Voice format: Telnyx.Sukhan.<voice_id> Urdu-only voice model, 14 curated voices. No prosody controls (speed/pitch) or language selection — each voice speaks Urdu only. Native audio is 22050Hz.

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Voice Samples

Browse the full 14-voice catalogue via the Voices API.

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WebSocket

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Query Parameters

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Voice Settings

None. No prosody controls are exposed — voice_speed and other settings have no effect if sent. The init frame only needs {"text": " "}.

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REST API

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Fields

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Response

Default (binary_output): chunked audio bytes, 22050Hz signed 16-bit LE mono (native PCM, transcoded to MP3 on request). With output_type: "base64_output": JSON with base64-encoded audio. With output_type: "audio_id": JSON with an audio_url for deferred retrieval.
sampling_rate/sample_rate values other than 22050 are rejected with a 400 error. Unsupported format values are also rejected — REST response_format accepts only pcm/mp3; WebSocket audio_format accepts only mp3/linear16 (its PCM equivalent). Neither accepts wav.