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API ReferenceVoice APIsText to Speech

Synchronous text-to-speech synthesis

Generate speech synchronously from text or SSML. Returns complete audio as base64. The model associated with the voice is selected automatically.

Authentication

AuthorizationBearer

Request

This endpoint expects an object.
voice_uuidstringRequired
Voice UUID to use for synthesis
datastringRequired

Text or SSML to synthesize (max 3,000 characters)

project_uuidstringOptional
Optional project UUID to store the clip
titlestringOptional
Optional title for the generated clip
precisionenumOptionalDefaults to PCM_32
Audio precision for WAV output
Allowed values:
output_formatenumOptionalDefaults to wav
Audio output format
Allowed values:
sample_rateenumOptional
Audio sample rate in Hz
use_hdbooleanOptionalDefaults to false

Enable HD synthesis with small latency trade-off

apply_custom_pronunciationsbooleanOptionalDefaults to false
When true, automatically applies your team's custom pronunciations to matching words in the input text. Defaults to false.

Response

Successful synthesis
successbooleanOptional
audio_contentstringOptionalformat: "byte"

Base64-encoded audio bytes

audio_timestampsobjectOptional
durationdoubleOptional
Audio duration in seconds
synth_durationdoubleOptional
Raw synthesis time
output_formatstringOptional
sample_rateintegerOptional
titlestringOptional
issueslist of stringsOptional

Errors

400
Bad Request Error
401
Unauthorized Error