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Converts from Hz to the number of Equivalent Rectangular Bandwidths (ERBs) below input frequency. See https://www2.ling.su.se/staff/hartmut/bark.htm and https://en.wikipedia.org/wiki/Equivalent_rectangular_bandwidth
ERBToHz(e, method = c("linear", "quadratic")[1])
vector or matrix of frequencies in ERB rate
approximation to use
HzToERB HzToSemitones HzToNotes
HzToERB
HzToSemitones
HzToNotes
freqs_Hz = c(-20, 20, 100, 440, 1000, 20000, NA) e_lin = HzToERB(freqs_Hz, 'linear') ERBToHz(e_lin, 'linear') e_quad = HzToERB(freqs_Hz, 'quadratic') ERBToHz(e_quad, 'quadratic')
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