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Q factor

Q Filter
Filter selectivity, i.e., the band of frequencies passed or rejected by the filter. The narrower the band of frequencies, the higher the Q, and the broader the band, the lower the Q. This is computed by Q = fc/f where fc is the center frequency and f is the band-width of the filter at the -3 dB points. (Bentley Nevada Corporation; Field of Rotating Machinery Measurement, Monitoring and Analysis)

A notch filter is a band-stop filter with a narrow stopband (high Q factor). (Wikipedia)

See Also

Concordance
Harmony
Pitch
Resonance
Tuning?


Page last modified on Monday 10 of May, 2010 10:42:40 MDT

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