Lexicon 300 - Split Setup Algorithms; Dual Delays

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“Split” Setup
Algorithms
Dual Delays
The Dual Delay algortthm consists of 2 types of delay lines: Gliding Flange
General Description
delays and Fixed delays. This is a true stereo aigoriihm. (If run in a Dual Mono
setup, however, it will be mono.)
Two independet gliding flange predelays are available, each wkh a2Oms range
insinglesample steps. There isalsoaganged stereoglidingflangedelay.There
are two flange gain controls which vary the overall amount of flange effect.
The flange glides are typically modulated by the internal LFO. Setting the flange
gains very high will cause an “over the top”type of flange to occur as the flange
glide delays cross overthe predelay pointers. The outputs of the flange delays
arefed to the delay left and delay right lines which are 2.5 seconds long. Once
into thesedelaylines, you cancreate manydifferentdelayeffects. Therearetwo
programmable taps on each delay line. DLYl (left) and DLY2 (right) can be pro-
grammed anywhere along this 2.5 second path. There wil++owever, be no
apparantdelayunlessafeedbackvalueisassigned to thedelayvaluesviaFBK1
and FBK2.All Passfitters, ordiffusors, inlinewtth thefeedbackpathsarelabeled
APD (All Pass Delay) andAPG (All PassGain).Theactual”tuning”oftheAllpass
delay is accomplished with the APD control. The amount of diffusion is set by
APG. When APG is turned high and FBKI is adjusted away from the 0% value,
each feedback loop will be rediffused.
DLY3 and DLY4 are cross feedback delay lines. They are also adjustable
anywhere along the 2.5 second delay line. DLY3 feeds from the left delay
position to the input of the right delay line. The same is true with DLY4 feeding
into the left delay line. The feedback parameters adjust the amount (level)
passed into the destination delay lines.
The last pair of delay pointers (LDLY and FiDLY) can be thought of as independ-
ently adjustable post delays. These can be adjusted anywhere along the 2.5
second delay line.
The output of each delay line can be positioned anywhere in the stereo pan field.
LPAN adjusts the position of the left delay loop; RPAN positions the output of the
right delay loop.
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