warpMatrix: Warp matrix

In soundgen: Sound Synthesis and Acoustic Analysis

Warp matrix

Description

Internal soundgen function

Usage

warpMatrix(m, scaleFactor, interpol = c("approx", "spline")[1])

Arguments

m	matrix (rows = frequency bins, columns = time)
scaleFactor	1 = no change, >1 = raise formants
interpol	interpolation method

Details

Warps or scales each column of a matrix (normally a spectrogram).

Examples

a = matrix(1:12, nrow = 4)
a
soundgen:::warpMatrix(a, 1.5, 'approx')
soundgen:::warpMatrix(a, 1/1.5, 'spline')

soundgen documentation built on Sept. 29, 2023, 5:09 p.m.