export type VoiceHelperCommand = {
    type: "list_devices";
} | {
    type: "start_v3";
    microphone?: string;
    speaker?: string;
} | {
    type: "start_v3_bridge";
} | {
    type: "set_input_muted";
    muted: boolean;
} | {
    type: "set_speaker_suppressed";
    suppressed: boolean;
    epoch: number;
} | {
    type: "apply_answer";
    sdp: string;
} | {
    type: "start_dictation";
    microphone?: string;
} | {
    type: "send_data";
    message: unknown;
} | {
    type: "send_pcm";
    audio: string;
    sample_rate: 24_000;
    num_channels: 1;
} | {
    type: "stop";
} | {
    type: "shutdown";
};
export type VoiceHelperEvent = {
    type: "ready";
    version: number;
} | {
    type: "devices";
    inputs: VoiceDevice[];
    outputs: VoiceDevice[];
} | {
    type: "offer";
    sdp: string;
} | {
    type: "state";
    state: string;
} | {
    type: "data";
    message: unknown;
} | {
    type: "pcm";
    audio: string;
    sample_rate: number;
    num_channels: number;
    epoch?: number;
} | {
    type: "playback_activity";
} | {
    type: "audio_diagnostics";
    diagnostics: VoiceAudioDiagnostics;
} | {
    type: "error";
    message: string;
} | {
    type: "stopped";
};
export interface VoiceDevice {
    id: string;
    name: string;
    is_default: boolean;
}
export interface VoiceAudioDiagnostics {
    epoch: number;
    suppressed: boolean;
    elapsed_ms: number;
    transitions: number;
    drained_packets: number;
    release_drained_packets: number;
    rejected_packets: number;
    buffering_entries: number;
    tail_flushes: number;
    clock_rebases: number;
    decode_failures: number;
    received_packets: number;
    missing_packets: number;
    decoded_packets: number;
    decoded_packet_samples: number;
    min_decoded_packet_samples: number;
    max_decoded_packet_samples: number;
    late_packets: number;
    duplicate_packets: number;
    reordered_packets: number;
    resyncs: number;
    resync_discarded_packets: number;
    read_gaps_over_40ms: number;
    max_read_gap_ms: number;
    max_playout_lateness_us: number;
    bridge_frames: number;
    bridge_channel_full: number;
    bridge_sends_over_1ms: number;
    max_bridge_send_us: number;
    first_packet_ms: number | null;
}
export declare class BoundedJsonlReader {
    private readonly chunks;
    private readonly maxLineBytes;
    private readonly onLine;
    private readonly onOversized;
    private byteLength;
    private failed;
    constructor(maxLineBytes: number, onLine: (line: string) => void, onOversized: () => void);
    push(chunk: Buffer): void;
    end(): void;
    private append;
    private emitLine;
}
export declare function parseVoiceHelperEvent(value: unknown): VoiceHelperEvent;