Struct GeminiTts 

pub struct GeminiTts { /* private fields */ }

Available on crate feature audio only.

Gemini TTS provider using generateContent with audio response modality.

Example

use adk_audio::GeminiTts;

// Default: gemini-3.1-flash-tts-preview
let tts = GeminiTts::from_env()?;

// Specific model
let tts = GeminiTts::from_env()?.with_model("gemini-2.5-pro-preview-tts");

// Multi-speaker
let tts = GeminiTts::from_env()?.with_speakers(vec![
    SpeakerConfig::new("Alice", "Kore"),
    SpeakerConfig::new("Bob", "Puck"),
]);

Implementations

impl GeminiTts

pub fn from_env() -> Result<GeminiTts, AudioError>

Available on crate features tts or qwen3-tts only.

Create from environment variable GEMINI_API_KEY.

pub fn new(config: CloudTtsConfig) -> GeminiTts

Available on crate features tts or qwen3-tts only.

Create with explicit config.

pub fn with_model(self, model: impl Into<String>) -> GeminiTts

Available on crate features tts or qwen3-tts only.

Set the TTS model.

pub fn with_speakers(self, speakers: Vec<SpeakerConfig>) -> GeminiTts

Available on crate features tts or qwen3-tts only.

Configure multi-speaker synthesis.

Speaker names must match the names used in the transcript text. Up to 2 speakers are supported.

Trait Implementations

impl TtsProvider for GeminiTts

fn synthesize<'life0, 'life1, 'async_trait>( &'life0 self, request: &'life1 TtsRequest, ) -> Pin<Box<dyn Future<Output = Result<AudioFrame, AudioError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, GeminiTts: 'async_trait,

Synthesize text to a single audio frame (batch mode).

fn synthesize_stream<'life0, 'life1, 'async_trait>( &'life0 self, request: &'life1 TtsRequest, ) -> Pin<Box<dyn Future<Output = Result<Pin<Box<dyn Stream<Item = Result<AudioFrame, AudioError>> + Send>>, AudioError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, GeminiTts: 'async_trait,

Synthesize text as a stream of audio frames (streaming mode).

fn voice_catalog(&self) -> &[Voice]

List available voices for this provider.