import { Seconds } from "../core/type/Units";
import { Effect, EffectOptions } from "./Effect";
interface ReverbOptions extends EffectOptions {
    decay: Seconds;
    preDelay: Seconds;
}
/**
 * Simple convolution created with decaying noise.
 * Generates an Impulse Response Buffer
 * with Tone.Offline then feeds the IR into ConvolverNode.
 * Note: the Reverb will not make any sound until [[generate]]
 * has been invoked and resolved.
 *
 * Inspiration from [ReverbGen](https://github.com/adelespinasse/reverbGen).
 * Copyright (c) 2014 Alan deLespinasse Apache 2.0 License.
 *
 * @category Effect
 */
export declare class Reverb extends Effect<ReverbOptions> {
    readonly name: string;
    /**
     * Convolver node
     */
    private _convolver;
    /**
     * The duration of the reverb.
     * [[generate]] must be called in order to update the values.
     */
    decay: Seconds;
    /**
     * The amount of time before the reverb is fully ramped in.
     * [[generate]] must be called in order to update the values.
     */
    preDelay: Seconds;
    /**
     * @param decay The amount of time it will reverberate for.
     */
    constructor(decay?: Seconds);
    constructor(options?: Partial<ReverbOptions>);
    static getDefaults(): ReverbOptions;
    /**
     * Generate the Impulse Response. Returns a promise while the IR is being generated.
     * @return Promise which returns this object.
     */
    generate(): Promise<this>;
    dispose(): this;
}
export {};