import { GnuSpeechOptions } from '@echogarden/gnuspeech-wasm';
import { SynthesisVoice } from '../api/Synthesis.js';
export declare function synthesize(text: string, options: GnuSpeechOptions): Promise<{
    rawAudio: {
        audioChannels: Float32Array<ArrayBufferLike>[];
        sampleRate: number;
    };
    sourceSampleFormat: import("../codecs/WaveCodec.js").SampleFormat;
    sourceBitDepth: import("../codecs/WaveCodec.js").BitDepth;
    sourceSpeakerPositionMask: number;
}>;
export declare const voiceList: SynthesisVoice[];