Find the frequencies of a spectral object.
A spectral object
A vector of the frequencies at which the columns of a spectral matrix occur.
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trackfreq(vowlax.dft.5) # Frequency components between 1000 and 2000 Hz trackfreq(vowlax.dft.5[,1000:2000]) # All frequency components of a trackdata object except the d.c. offset trackfreq(fric.dft[,-1]) # All frequency components except the d.c. offset # and except frequencies above 5000 Hz trackfreq(fric.dft[,-c(1, 5000:20000)]) # Note the following syntax if the spectral object is a vector # Frequencies 1000-3000 Hz trackfreq(e.dft[1000:3000])
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