import type { AdvancedSignalsmithOptions, AudioData, CreateSignalsmithStretchOptions, QualityPreset } from "../types.js";
export interface AudioBufferProcessOptions {
    readonly timeRatio?: number;
    readonly pitchScale?: number;
    readonly pitchSemitones?: number;
    readonly quality?: QualityPreset;
    readonly advanced?: AdvancedSignalsmithOptions;
    readonly initialization?: CreateSignalsmithStretchOptions;
}
/** Copies a browser AudioBuffer into framework-agnostic non-interleaved PCM data. */
export declare function audioBufferToAudioData(buffer: AudioBuffer): AudioData;
/** Copies non-interleaved PCM data into a new browser AudioBuffer. */
export declare function audioDataToAudioBuffer(context: BaseAudioContext, data: AudioData): AudioBuffer;
/** Processes an AudioBuffer and returns a newly allocated AudioBuffer. */
export declare function processAudioBuffer(context: BaseAudioContext, input: AudioBuffer, options?: AudioBufferProcessOptions): Promise<AudioBuffer>;
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