Pan Control; Input Linking; M/S Matrixing - Sound Devices 664 User Manual And Technical Information

664 User Guide and Technical Information

Pan Control

The pop-up Pan Control routes inputs to the left (L) and right (R) chan-
nels of the stereo Master Bus. The pan pot has a detent in the center posi-
tion. After setting the pan, the pan control can be recessed to hide it from
the mixing surface during normal operation.

Input Linking

Input pairs 1-2, 3-4, and 5-6 can be linked as stereo pairs. When a pair of inputs is linked:
• Each channels' Trim Control and High-Pass Filter Control work as normal, controlling coarse gain
and high-pass filtering for their respective inputs.
• The odd channel's Input Fader controls the post-fade level of both inputs.
• The odd channel's Pan Control controls the balance of the stereo signal to the Master Bus. When
linked MS, the odd channel's Pan Control functions as a left/right balance control for the matrixed
MS signal.
• The even channel's Fader Control and Pan Control are disabled.
• The limiters of both inputs are linked.
• The background label of both inputs is connected on the Main Screen.

M/S Matrixing

When input pairs are linked MS, the odd channel is used for the Mid signal and the even channel is
used for the Side signal. To produce a stereo signal from an M/S configuration, the signal from both
microphones must be processed.
Mid-side (MS) matrixing is a method for processing audio signal from a cardioid microphone and a bi-
directional microphone into a stereo signal. The cardioid microphone is the "mid" signal and connects
to the odd Input, and the bidirectional microphone is the "side" signal and connects to even Input.
The cardioid microphone is pointed at the sound source, and the bidirectional microphone is oriented
sideways (positioned with its capsule as near as possible to the cardioid microphone's capsule). The
following diagram shows the relative polar patterns of microphones in an M/S configuration.
10
v . 2 .01 Features and specifications are subject to change . Visit www .sounddevices .com for the latest documentation .
Linked
Unlinked
Mid Signal
Side Signal