VoxaTrace/com.musicmuni.voxatrace.tona.model/PeakStats

PeakStats

data class PeakStats(val referenceInterval: Float, val peakPosition: Float, val peakAmplitude: Float, val mean: Float, val median: Float, val stdDev: Float, val variance: Float, val coeffOfVariation: Float, val skewness: Float, val kurtosis: Float, val pearsonSkew2: Float)

Statistical summary of pitch distribution around a detected histogram peak.

Produced by PitchHistogram.computePeakStats, keyed by reference interval.

Constructors

PeakStats

constructor(referenceInterval: Float, peakPosition: Float, peakAmplitude: Float, mean: Float, median: Float, stdDev: Float, variance: Float, coeffOfVariation: Float, skewness: Float, kurtosis: Float, pearsonSkew2: Float)

Properties

coeffOfVariation

val coeffOfVariation: Float

Coefficient of variation (stdDev / mean).

kurtosis

val kurtosis: Float

Distribution kurtosis (3 = normal).

mean

val mean: Float

Mean pitch (cents) of samples assigned to this peak.

median

val median: Float

Median pitch (cents) of samples assigned to this peak.

peakAmplitude

val peakAmplitude: Float

Histogram amplitude at the peak (proxy for duration/prominence).

peakPosition

val peakPosition: Float

Detected peak position in cents (the "actual" position).

pearsonSkew2

val pearsonSkew2: Float

Skewness coefficient: 3 × (mean − mode) / stdDev, where mode is the histogram peak position. (Named after Pearson's formula but uses mode, not median.)

referenceInterval

val referenceInterval: Float

Target interval in cents (the "expected" position).

skewness

val skewness: Float

Distribution skewness (0 = symmetric).

stdDev

val stdDev: Float

Standard deviation of the pitch distribution (cents).

variance

val variance: Float

Variance of the pitch distribution (cents²).