export declare const VALID_VOICES: readonly ["alloy", "ash", "coral", "echo", "fable", "onyx", "nova", "sage", "shimmer"];
export declare const VALID_MODELS: readonly ["tts-1", "tts-1-hd", "gpt-4o-mini-tts"];
export declare const VALID_FORMATS: readonly ["mp3", "opus", "aac", "flac", "wav", "pcm"];
export declare const DEFAULT_VOICE = "alloy";
export declare const DEFAULT_MODEL = "gpt-4o-mini-tts";
export declare const DEFAULT_FORMAT = "mp3";