dbx SC 32, Help Manual

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SC 32 / SC 64
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sensitive. In Fixed mode, once filters are set they remain stored as part of the
program until reset. Fixed mode is typically used before the performance without
any input signal.
Live Mode - When the mode is set to Live, the algorithm updates only the live
filters. In Live mode, the live filters automatically detect and remove feedback
during the performance. When all of the live filters have been used, they begin to
'round robin'. Essentially this means that the first live filter set will clear and be
reassigned to the new feedback frequency.
Type Selection - This allows the type of program material to be selected.
Options are Speech, Music Low, Music Medium and Music High.
Live Filter Lift - Live Filter Lift assigns a timer to each Live filter. Once the timer
for that filter has elapsed, the algorithm checks to see if that filter is still
necessary, if not the filter is lifted maintaining the sonic fidelity of the system. If
the filter is still needed the timer is reset and the algorithm will check again once
it has run out again.
Lift After Fader - This parameter allows the user to set the timer length for the
Live Filter Lift portion of the algorithm.
Detector - This parameter sets a high pass filter in the path of the AFS detector.
There may be occasions where the AFS algorithm is removing too much low end
because it is being triggered by synthesizer or bass notes that are not really
feedback. This parameter provides a mechanism to make the AFS algorithm less
sensitive to low frequency thereby setting fewer filters in the bass region.
Sensitivity Fader - The AFS algorithm is very effective when the audio has a
nominal level of 0 dBu, however if the audio is too low in level the AFS algorithm
may not catch feedback as quickly as possible. By increasing or decreasing the
sensitivity you can adjust for audio that is either too loud or too soft and help the
AFS function properly.
Fixed Filters Fader - This allows the user to select how many of the total
number of filters are Fixed and how many are Live. The Fixed/Live filter usage
will be indicated at the bottom of each page of the feedback elimination effect. 'F'
indicates an available fixed filter, and 'L' indicates an available live filter. A
blocked out F or L indicates a filter that is set, or in use.
Total Filters Fader - This fader determines the total number of filters to be used.