/**
 * adapters/kokoro/tts.ts — Kokoro TTS synthesis pipeline.
 *
 * Converts text to OGG Opus audio buffers (for sending as voice notes)
 * or plays locally via afplay. No transport SDK imports.
 *
 * Pipeline: Kokoro-js → Float32 PCM → WAV → ffmpeg → OGG Opus
 */
export type KokoroVoice = "af_heart" | "af_alloy" | "af_aoede" | "af_bella" | "af_jessica" | "af_kore" | "af_nicole" | "af_nova" | "af_river" | "af_sarah" | "af_sky" | "am_adam" | "am_echo" | "am_eric" | "am_fenrir" | "am_liam" | "am_michael" | "am_onyx" | "am_puck" | "am_santa" | "bf_alice" | "bf_emma" | "bf_isabella" | "bf_lily" | "bm_daniel" | "bm_fable" | "bm_george" | "bm_lewis";
/**
 * Convert text to an OGG Opus voice note buffer.
 */
export declare function textToVoiceNote(text: string, voice?: string): Promise<Buffer>;
/**
 * Synthesize text and play locally via afplay.
 */
export declare function speakLocally(text: string, voice?: string): Promise<void>;
export declare function listVoices(): string[];
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