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GET
List TTS Voices

Overview

Retrieve the list of available Text-to-Speech voices provided by Google Cloud, so you can pick a specific voice_name when calling the /tts endpoint.

Query Parameters

string
Optional language filter (e.g. en, es, fr). When provided, only voices that support this language are returned.

Example Request

Response

array
Array of voice objects
string
The unique voice identifier (use this value as voice_name in the /tts endpoint). This is the technical voice code (e.g., en-US-Neural2-F).
string
A human-readable name for the voice (e.g., US English Neural2 (Female)). Use this for display purposes in your UI.
string[]
List of BCP-47 language codes supported by this voice (e.g. ["en-US"])
string
Voice gender as defined by Google Cloud (MALE, FEMALE, NEUTRAL)
number
Natural sample rate of the voice in Hz
string
The voice model type (e.g., Neural2, Neural, Studio, News, WaveNet, Standard). Neural2 and Neural models provide higher quality, more natural-sounding speech.

Example Response

Understanding Voice Names

Voice names follow a pattern that encodes important information:

Voice Code Format

Voice codes follow the format: {language}-{locale}-{model}-{gender}
  • Language: Language code (e.g., en for English)
  • Locale: Regional variant (e.g., US, GB, AU for US English, British English, Australian English)
  • Model: Voice model type (e.g., Neural2, Neural, WaveNet, Standard)
  • Gender: F (Female), M (Male), or A (Any/Neutral)

Examples

  • en-US-Neural2-FUS English Neural2 (Female): High-quality neural voice with US accent, female gender
  • en-GB-Neural-DBritish English Neural (Male): Neural voice with British accent, male gender
  • en-AU-Standard-BAustralian English Standard (Any): Standard quality voice with Australian accent

Voice Properties

Locales indicate the regional accent:
  • US - United States English
  • GB - British English
  • AU - Australian English
  • CA - Canadian English
  • IN - Indian English
  • IE - Irish English
  • NZ - New Zealand English
  • ZA - South African English
Models indicate voice quality:
  • Neural2 - Latest high-quality neural voices (recommended)
  • Neural - High-quality neural voices
  • WaveNet - Advanced WaveNet voices
  • Studio - Professional studio-quality voices
  • News - News broadcaster style voices
  • Standard - Standard quality voices (faster, lower cost)
Note: Some voices (specifically en-IN-Chirp, en-IN-Neural2, en-GB-Neural2, en-GB-Chirp, en-AU-Neural2, and en-AU-Chirp) are not available as they are incompatible with the current API version.

Usage with /tts

To use a specific voice, pass its name as the voice_name field in the /tts request body.