Get quality factor
dsp.NotchPeakFilter object in the default configuration, where the
Specification property is set to
'Bandwidth and center frequency'.
np = dsp.NotchPeakFilter
np = dsp.NotchPeakFilter with properties: Specification: 'Bandwidth and center frequency' Bandwidth: 2205 CenterFrequency: 11025 SampleRate: 44100
Determine the quality factor of the filter using the
getQualityFactor function. The quality factor is given by the ratio of the center frequency to the bandwidth.
ans = 5
Visualize the filter response using
Q— Quality factor
Quality factor of the filter, returned as a scalar. The Q factor is defined as the center frequency divided by the bandwidth.