Lexicon 960L - Manual (Page 77)

960L Owner’s Maunal Using The Reverb Program
Parameters Used in the 960L Algorithms,
Continued
5-11
FbckL,
FbckR,
FbckLF,
FbckLS,
FbckRF,
FbckRS
FbkMST
FrRoll
FrRvb
FSDly
FSLvl
FSRoll
InLvl
Echo Feedback. Some reflection delays have echo capabilities. These appear as part of the
input path; echoes are passed to the reverberators as well as the reflection outputs. Also,
echo signal is fed back through the input diffusors. This means that each echo will be more
diffuse and spread than its predecessor. The control EchoLS sets the duration of an echo
(that is, a feedback path) on the Left Surround Input and FbckLS sets the amount of feedback
for that path. Any echo pattern set with EchoLS and FbckLS will be heard in the surround
reverb field and also in any reflection delay whose source is the Left Surround Input.
Echo Feedback Master scales all the echo feedbacks by a single percentage, allowing this one
parameter to set the feedback of a complex pattern.
Front-channel Rolloff (surround algorithms only). Like Rolloff in stereo, it controls the cutoff
frequency of a 6dB per octave low-pass filter at the output of all processing. In the Surround
algorithms, there are separate controls for the front (LF, C, and RF) channels (FrRoll) and rear
(LS and RS) channels (RearRoll).
Front Reverb Level (Surround algorithms only) controls the level of the reverberant tail, but to
just the LF and RF outputs. This allows their levels to be set relative to the early reflection
levels and the other reverb tails. We recommend setting the Front Reverb Level and the Rear
Reverb Level approximately equal, with the Center Reverb Level less by about 4.5dB. RvbLvl
is a master control for CtrRvb, FrRvb and RearRvb.
Front-to-Surround Delay (Ambient Chamber only) In surround ambiences, there is a signal
path from front inputs to rear early reflections and also from rear inputs to front early
reflections. The level of this path (in both directions) is set by FSLvl. The high frequency
rolloff is set by FSRoll. The delay in the path (in both directions) is set by FSDly.
Front-to-Surround Level (Surround Ambience and Ambient Chamber only) In surround
ambiences, there is a signal path from front inputs to rear early reflections and also from rear
inputs to front early reflections. The level of this path (in both directions) is set by FSLvl. The
high frequency rolloff is set by FSRoll. In Ambient Chamber, the delay in the path (in both
directions) is set by FSDly.
Front-to-Surround Rolloff (Surround Ambience and Ambient Chamber only) In surround
ambiences, there is a signal path from front inputs to rear early reflections and also from rear
inputs to front early reflections. The level of this path (in both directions) is set by FSLvl. The
high frequency rolloff is set by FSRoll. In Ambient Chamber, the delay in the path (in both
directions) is set by FSDly.
Input Level sets level for all input channels simultaneously. Used to prevent processor
overload by counteracting gain increases caused by high RTMid, BassMult, and Delay
feedback levels. Unless extreme values of these controls are used, we recommend that you
leave InLvl set at the factory preset position.