interface SpeechCreateParams {
    input: string;
    model: string & {} | "tts-1" | "tts-1-hd";
    response_format?: "mp3" | "opus" | "aac" | "flac";
    speed?: number;
    voice: "alloy" | "echo" | "fable" | "onyx" | "nova" | "shimmer";
}

Properties

input: string

The text to generate audio for. The maximum length is 4096 characters.

model: string & {} | "tts-1" | "tts-1-hd"

One of the available TTS models: tts-1 or tts-1-hd

response_format?: "mp3" | "opus" | "aac" | "flac"

The format to audio in. Supported formats are mp3, opus, aac, and flac.

speed?: number

The speed of the generated audio. Select a value from 0.25 to 4.0. 1.0 is the default.

voice: "alloy" | "echo" | "fable" | "onyx" | "nova" | "shimmer"

The voice to use when generating the audio. Supported voices are alloy, echo, fable, onyx, nova, and shimmer. Previews of the voices are available in the Text to speech guide.

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