export declare enum MonoMixType {
    AVERAGE = "average",
    ABSOLUTE_AVERAGE = "absolute-average",
    PEAK_MIN = "peak-min",
    PEAK_MAX = "peak-max",
    ABSOLUTE_MAX = "absolute-max",
    ABSOLUTE_MIN = "absolute-min"
}
export interface AudioPostProcessSettings {
    inputSampleRate: number;
    outputSampleRate: number;
    forceMono: boolean;
    monoMixType: MonoMixType;
    monoChannelsWeight: number[];
}
export declare enum AudioPostProcessMsgType {
    PROCESS = "process",
    DECODE_AND_PROCESS = "decode_and_process",
    RESULT = "result",
    DECODE_UNSUPPORTED = "decode_unsupported",
    ERROR = "error"
}
export interface AudioPostProcessRequest {
    id: number;
    type: AudioPostProcessMsgType.PROCESS;
    channels: Float32Array[];
    settings: AudioPostProcessSettings;
}
export interface AudioDecodeAndProcessRequest {
    id: number;
    type: AudioPostProcessMsgType.DECODE_AND_PROCESS;
    audioData: ArrayBuffer;
    settings: AudioPostProcessSettings;
}
export interface AudioPostProcessResultResponse {
    id: number;
    type: AudioPostProcessMsgType.RESULT;
    channels: Float32Array[];
    decodedChannels: number;
    decodedDuration: number;
}
export interface AudioPostProcessDecodeUnsupportedResponse {
    id: number;
    type: AudioPostProcessMsgType.DECODE_UNSUPPORTED;
    audioData: ArrayBuffer;
    settings: AudioPostProcessSettings;
}
export interface AudioPostProcessErrorResponse {
    id: number;
    type: AudioPostProcessMsgType.ERROR;
    error: string;
}
export type AudioPostProcessResponse = AudioPostProcessResultResponse | AudioPostProcessDecodeUnsupportedResponse | AudioPostProcessErrorResponse;