type PlanarAudio = Float32Array[];
export declare class StreamingPitchShifter {
    private readonly numberOfChannels;
    private readonly stretcher;
    private readonly resampler;
    private readonly outputQueue;
    private totalInputFrames;
    private totalOutputFrames;
    constructor({ numberOfChannels, sampleRate, toneFrequency }: {
        numberOfChannels: number;
        sampleRate: number;
        toneFrequency: number;
    });
    append(audio: PlanarAudio): PlanarAudio;
    private takeAvailableOutput;
    finalize(): Float32Array<ArrayBuffer>[];
}
export {};