Studer D950 Operating Instructions Manual page 155

LCR PAN:
LCRS PAN:
Date printed: 03.09.03
The LCR (Left/Center/Right) PAN is a basic three-channel panner with
divergence and center channel controls. LCR PANning parameters are as
follows:
• PAGE 1 = MPAN: CENT (center percentage), LCR (left/center/right)
• PAGE 2 = FEED: FRMT (format)
• PAGE 3 = MODE: DIVM (divergence mode), DIVG (divergence
function)
CENT: A center percentage control is provided to adjust the amount of signal sent
directly to the center channel. This function has 5% increments and is acti-
vated using the SW key. When this parameter is inactive or set to 0%, the
LCR control acts as a traditional L/R pan pot with no signal being sent to
the center channel. This provides a phantom center channel image between
the left and right speakers. When CENT is active and set to 100%, signals
panned between the left and right channels are directed to the center chan-
nel. In this case, as the rotary encoder is moved from center towards the
left, the signal shifts from the center channel towards the left channel with
the right channel receiving no contribution, and vice versa.
LCR: This parameter controls the front left/center/right pan with 1° steps from
–30° (left) to C (center) to +30° (right). L30 indicates full left, 30R indi-
cates full right, and C indicates the center position. The contribution to the
center channel is determined by the CENT parameter. The SW key allows
the rotary encoder to be deactivated and therefore provides the ability to
"lock" the pan position in place.
FRMT: This serves as the format selector in all MPAN modes. The following se-
lections are possible: 2CH, LCR, LCRS, 5.1, EX, and 7.1.
DIVM: This is the divergence mode selector. Front is the only diverge mode
available in the LCR pan. The SW key or rotary encoder selects between
OFF and FRNT (active).
DIVG: The divergence function is used to bleed portions of sound from the
panned output to the other speakers. For example, if the divergence is ac-
tive and set to 100%, the LCR control will act as a traditional L/R pan pot
(assuming there is no center channel contribution). Panning to full left will
result in full attenuation of the right channel. If the divergence is then set
to 50%, one half of the left channel signal strength will be bled into the
right channel (without effecting the left channel). With the divergence
control set to 1%, equal signal will be fed to both channels and the LCR
pan pot will have no effect. Divergence values are as follows: 1%, 2%,
3%, 4%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 60%,
70%, 80%, 90%, 100%. Careful use of this control may have the effect in-
creasing the size of the mix "sweet spot", particularly for large auditori-
ums. Misuse of this control may result in essentially mono panning.
Note: The order of LCR bus assignments is as follows: L, R, C.
The LCRS (Left/Center/Right/Surround) PAN is a four-channel panner
intended for use in 4-2-4 matrixed surround systems. In addition to the
same parameters found in LCR mode, the LCRS panner includes
front/surround and an unique Pan-Around function. LCRS PANning pa-
rameters are as follows:
• PAGE 1 = MPAN: CENT (center percentage), F/S (front/surround),
LCRS (left/center/right)
• PAGE 2 = FEED: FRMT (format)
• PAGE 3 = MODE: PANA (Pan-Around), DIVM (divergence mode),
DIVG (divergence function)
SW V3.3
D950 Digital Mixing System
Desk Operation 3-79