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Bandpass is an adjective that describes a type of filter or filtering process; it is to be distinguished from passband, which refers to the actual portion of affected spectrum. Hence, one might say "A dual bandpass filter has two passbands." A bandpass signal is a signal containing a band of frequencies not adjacent to zero frequency, such as a signal that comes out of a bandpass filter.
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What bandpass Q factor do I want for 12dB/octave roll off?
Sorry for what may be a dumb question.
I'm used to thinking about low and high pass filters in terms of db/octave (e.g. 6db for passive RC filter).
Whats the equivalent Q factor for a bandpass filte …