Audio Processing

Silence Trimming

Remove unwanted leading and trailing silence from synthesized audio with a single flag.

How it works

Setting trim_silence=True instructs the TTS engine to strip silent segments at the beginning and end of the generated audio. This is particularly useful for telephony (IVR prompts) and notification audio where dead air degrades the user experience.

PROPERTYVALUE
Parametertrim_silence
Typebool
DefaultFalse

Example

python
config = TTSConfig(
    model="zero-indic",
    voice="Sunita",
    response_format="mp3",
    trim_silence=True,
)
result = await client.tts.synthesize("Your order has been shipped.", config=config)

When to use

  • Telephony (IVR/PSTN): Eliminates dead air before the caller hears the prompt.
  • Notifications: Keeps audio clips tight for push or in-app alerts.
  • Concatenated audio: Prevents gaps when stitching multiple TTS segments together.
PreviousSpeech SpeedNext Language Preprocessing