export type PreferredAudioInput = 'bluetoothHighQualityMic' | 'builtInMic' | 'none';
export type RouteConfigEntry = {
    category: 'playAndRecord' | 'record' | 'soloAmbient' | 'ambient' | 'playback';
    mode: 'default' | 'measurement' | 'voiceChat' | 'videoRecording' | 'gameChat';
    options: ('mixWithOthers' | 'duckOthers' | 'allowBluetooth' | 'allowBluetoothHFP' | 'allowBluetoothA2DP' | 'bluetoothHighQualityRecording' | 'allowAirPlay' | 'defaultToSpeaker' | 'overrideMutedMicrophoneInterruption')[];
    /** First input policy to try. HD Bluetooth requires iOS 26, mode=default, and bluetoothHighQualityRecording. */
    preferredInput: PreferredAudioInput;
    /**
     * Forced fallback after an HD Bluetooth request fails. builtInMic switches
     * to phone-mic + A2DP; none switches to ordinary headset HFP.
     */
    forceFallback?: PreferredAudioInput;
    /** Lowercase JSON alias for forceFallback. Prefer forceFallback in TypeScript. */
    forcefallback?: PreferredAudioInput;
    /** Backward-compatible alias for forceFallback. */
    preferredInputFallback?: PreferredAudioInput;
    /** Additional forced fallback after forceFallback. */
    forceFallback1?: PreferredAudioInput;
    /** Lowercase JSON alias for forceFallback1. */
    forcefallback1?: PreferredAudioInput;
    /** Backward-compatible alias for forceFallback1. */
    preferredInputFallback1?: PreferredAudioInput;
    /** Final forced fallback. */
    forceFallback2?: PreferredAudioInput;
    /** Lowercase JSON alias for forceFallback2. */
    forcefallback2?: PreferredAudioInput;
    /** Backward-compatible alias for forceFallback2. */
    preferredInputFallback2?: PreferredAudioInput;
};
export type AudioRoutingConfig = {
    /**
     * App-wide echo cancellation for STT, wake word and TTS. When present it
     * replaces WakewordAEC.
     * - 'off': no AEC.
     * - 'duringTTS': AEC only while TTS audio is playing.
     * - 'always': AEC whenever STT or wake word is listening, kept on (no
     *   switching around TTS).
     * Newer iPhones (iOS 18.2+ with hardware support) use iOS's session-level
     * AEC. Older iPhones use an echo-cancelling audio engine that TTS plays
     * through, owned by STT while STT runs.
     * Android: wake word and TTS on all supported versions; STT on Android 13+
     * (VOICE_COMMUNICATION capture + AcousticEchoCanceler), speaker routes only.
     */
    AEC?: {
        mode: 'off' | 'duringTTS' | 'always';
    };
    /** Older wake-word-only AEC preferences; ignored when AEC is set. */
    WakewordAEC?: {
        regular: boolean;
        duringTTS: boolean;
    };
    default: RouteConfigEntry;
    byOutputPort: {
        carAudio?: RouteConfigEntry;
        builtInReceiver?: RouteConfigEntry;
        builtInSpeaker?: RouteConfigEntry;
        bluetoothA2DP?: RouteConfigEntry;
        bluetoothHFP?: RouteConfigEntry;
        headphones?: RouteConfigEntry;
    };
    /** Temporary wake-word sensitivity used only while physical TTS audio plays. */
    wakeWordDuringTTS?: {
        threshold: number;
        buffer_cnt: number;
    };
};