Band Pass; Band Cut - E-Mu 1212M Owner's Manual

However, when the Highpass Freq parameter is lower than the Lowpass Freq parameter,
the combined filter response is basically flat, since the passbands of each filter combine
to admit the entire spectrum. An exception occurs when there is resonance added to the
filters - you'll hear the resonant peaks as increased gain above the otherwise flat spectral
response.
Note that while the Highpass || Lowpass combination appears the same as the Band Cut
filter, this mode is different in several important respects:
• The rolloff points are independently adjustable as individual frequencies rather
than specified as a combination of center frequency and bandwidth.
• The rolloff slope of each High and Low filter can be specified separately while
each side of the Band Cut filter uses the same slope.
• The Resonance of each High and Low filter can be specified separately while the
Band Cut filter uses the same Resonance at high and low corner frequencies.

Band Pass

In this mode, the Lowpass and Highpass filters are connected in series to form a
bandpass filter, whose Center Freq and Bandwidth parameters are used to generate the
rolloff frequencies for the underlying Lowpass and Highpass filters. In this mode the
rolloff slope on the high and low sides of the passband is symmetrical and is limited to
a maximum of 24dB/octave. The Resonance is also common to both filter sections .

Band Cut

In this mode, the Lowpass and Highpass filters are connected in parallel to form a band-
cut filter, whose Center Freq and Bandwidth parameters are used to generate the rolloff
frequencies for the underlying Lowpass and Highpass filters. In this mode the rolloff
slope on the high and low sides of the cut-band is symmetrical and is limited to a
maximum of 24dB/octave.The Resonance is also common to both filter sections .
E-MU Digital Audio System
Core Effects Descriptions
Resonance = 0
Resonance = 0
5 - Effects
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