A pitchCeiling of 300 Hz will correspond to a lower quefrency of 1/300≈0.0033 seconds.ĭetermines how the amplitude and position of a peak are determined. The lower quefrency is determined as 1 / pitchCeiling and this value is in general more critical than the value of the upper quefrency which equals 1 / pitchFloor. By chosing a value of zero, you can prevent any smoothing in the quefrency dimension.ĭetermine the limits of the quefrency range where a peak is searched for. By chosing a value of zero, you can prevent any smoothing in the time dimension.ĭetermines the width of the averaging window in the quefrency domain. The result of the smoothing will be that in the new smoothed PowerCepstrogram each cepstral value is the average of the cepstral values within the averaging window that was positioned symmetrically around the center of this frame in the selected PowerCepstrogram. If no smoothing is going on the result should be independent of this setting.ĭetermines the width of the averaging window in the time domain. Because, in general, the trends in the analysis frames will not be equal, the value of CPPS will be different whether or not smoothing is performed. The returned value is the average of the cepstral peak prominences of the individual frames.ĭetermines whether the smoothing should be performed on the Cepstrogram after the trend of each PowerCepstrum frame has been removed. A command to get the cepstral peak prominence (CPP) of the selected PowerCepstrogram.
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