/**
 *  FrequencyShifter can be used to shift all frequencies of a signal by a fixed amount.
 * The amount can be changed at audio rate and the effect is applied in real time.
 * The frequency shifting is implemented with a technique called single side band modulation using a ring modulator.
 * Note: Contrary to pitch shifting, all frequencies are shifted by the same amount,
 * destroying the harmonic relationship between them. This leads to the classic ring modulator timbre distortion.
 * The algorithm will produces some aliasing towards the high end, especially if your source material
 * contains a lot of high frequencies. Unfortunatelly the webaudio API does not support resampling
 * buffers in real time, so it is not possible to fix it properly. Depending on the use case it might
 * be an option to low pass filter your input before frequency shifting it to get ride of the aliasing.
 * You can find a very detailed description of the algorithm here: https://larzeitlin.github.io/RMFS/
 *
 * See description on [Tone.js](https://tonejs.github.io/)
 *
 *
 */
import { TypedAudioNode } from './_Base';
import { NodeParamsConfig } from '../utils/params/ParamsConfig';
import { AudioBuilder } from '../../../core/audio/AudioBuilder';
declare class FrequencyShifterAudioParamsConfig extends NodeParamsConfig {
    /** @param frequency */
    frequency: import("../utils/params/ParamsConfig").ParamTemplate<import("../../index_all").ParamType.FLOAT>;
}
export declare class FrequencyShifterAudioNode extends TypedAudioNode<FrequencyShifterAudioParamsConfig> {
    paramsConfig: FrequencyShifterAudioParamsConfig;
    static type(): string;
    initializeNode(): void;
    cook(inputContents: AudioBuilder[]): void;
}
export {};