export interface SignalsmithStretchSchedule {
    readonly active?: boolean;
    readonly input?: number;
    readonly output?: number;
    readonly outputTime?: number;
    readonly rate?: number;
    readonly semitones?: number;
    readonly tonalityHz?: number;
    readonly formantSemitones?: number;
    readonly formantCompensation?: boolean;
    readonly formantBaseHz?: number;
    readonly loopStart?: number;
    readonly loopEnd?: number;
}
export interface SignalsmithStretchScheduleResult {
    readonly active: boolean;
    readonly input: number;
    readonly output: number;
    readonly rate: number;
    readonly semitones: number;
    readonly tonalityHz: number;
    readonly formantSemitones: number;
    readonly formantCompensation: boolean;
    readonly formantBaseHz: number;
    readonly loopStart: number;
    readonly loopEnd: number;
}
export interface SignalsmithStretchNodeConfig {
    readonly preset?: "default" | "cheaper";
    readonly blockMs?: number;
    readonly intervalMs?: number;
    readonly splitComputation?: boolean;
}
export type SignalsmithStretchNodeOptions = AudioWorkletNodeOptions;
export interface SignalsmithStretchNode extends AudioWorkletNode {
    inputTime: number;
    configure(config: SignalsmithStretchNodeConfig): Promise<void>;
    latency(): Promise<number>;
    setUpdateInterval(seconds: number, callback?: (inputTime: number) => void): Promise<void>;
    start(when?: number | SignalsmithStretchSchedule, offset?: number, duration?: number, rate?: number, semitones?: number): Promise<SignalsmithStretchScheduleResult>;
    stop(when?: number): Promise<SignalsmithStretchScheduleResult>;
    schedule(options: SignalsmithStretchSchedule, adjustPrevious?: boolean): Promise<SignalsmithStretchScheduleResult>;
    addBuffers(channels: Float32Array[], transfer?: Transferable[]): Promise<number>;
    dropBuffers(toSeconds?: number): Promise<{
        readonly start: number;
        readonly end: number;
    }>;
}
/** Creates a live Signalsmith Stretch AudioWorkletNode for a Web Audio graph. */
export declare function createSignalsmithStretchNode(context: BaseAudioContext, options?: SignalsmithStretchNodeOptions): Promise<SignalsmithStretchNode>;
export default createSignalsmithStretchNode;
//# sourceMappingURL=index.d.ts.map