dsp-collection/signal/PitchDetectionHarm.d.ts

A collection of JavaScript modules for digital signal processing (written in TypeScript)

import * as WindowFunctions from "./WindowFunctions.ts";
export interface HarmonicAmplitudeEvaluationParms {
    amplitudeCompressionExponent: number;
    harmonicsDeclineRate: number;
    harmonicsDeclineExponent: number;
}
export interface HarmonicSumParms extends HarmonicAmplitudeEvaluationParms {
    fCutoff: number;
    relWindowWidth: number;
    windowFunction: WindowFunctions.WindowFunction | undefined;
}
export interface HarmonicInstSumParms extends HarmonicSumParms {
    shiftFactor: number;
    peakWidthFactor: number;
}
export declare function getDefaultHarmonicSumParms(): HarmonicSumParms;
export declare function getDefaultHarmonicInstSumParms(): HarmonicInstSumParms;
export declare function harmonicSum(samples: Float64Array | Float32Array, sampleRate: number, position: number, f0: number, parms?: HarmonicSumParms): number;
export declare function harmonicInstSum(samples: Float64Array | Float32Array, sampleRate: number, position: number, f0: number, parms?: HarmonicInstSumParms): number;
export declare function evaluateHarmonicAmplitude(amplitude: number, harmonic: number, parms: HarmonicAmplitudeEvaluationParms): number;
export declare function findPitchSalienceFunctionArgMax(salienceFunction: (f0: number) => number, f0Min: number, f0Max: number, { scanFactor, relTolerance, absTolerance }?: {
    scanFactor?: number | undefined;
    relTolerance?: number | undefined;
    absTolerance?: number | undefined;
}): number;
export declare function estimatePitch_harmonicSum(samples: Float64Array | Float32Array, sampleRate: number, position: number, f0Min?: number, f0Max?: number, parms?: HarmonicSumParms): number;
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