Filter
Top Products
PRECISION 8i
OPERATION MANUAL
14
9 PEAK REFERENCE selector. This sets the level at which the Peak-Hold indicators
4 activate. It also changes the operating level indication 6 to -10 dBV operation
when the -10 dBV position is selected.
10 Peak-Hold reset. RESET clears the peak-hold indicators on all channels. NOTE: It
is normal for the Peak-Hold indicators to activate when phantom power is applied,
when AC power is applied, or when a new setting is made on the PEAK
REFERENCE selector - simply depress RESET to clear the indicators.
11 Direct inputs DI-1 and DI-2 are controlled by gain controls for channels 7 and 8,
respectively. The gain range for the direct inputs is from -4 dB to +44 dB.
12 AC power indicator. The green power LED indicates that the unit is on.
More About M-S Decoding:
M-S (Mid-Side) decoding is a particularly creative feature of the PRECISION 8i. While
the M-S microphone technique has been around for many years, the opportunity to use
it is frequently limited by the need for specialty microphones and/or decoders.
What is M-S?
It is a stereo microphone placement technique
that uses a center, forward-facing omni or
cardioid mic (Mid) and a side-facing figure 8
mic (Side). The signals from these two mics
are passed through matrix circuitry that
combines them in particular phase and level
relationships to produce a stereo L and R
output.
What good is M-S versus the typical XY microphone placement?
Originally, M-S was used because it provided a stereo signal with good mono
compatibility. While this is not very interesting for contemporary stereo CD’s, it is still
valuable for broadcast and film sound production. But there is another significant
benefit: varying the gain of the Side mic in relation to the Mid mic causes a variation in
the stereo image - from none, to extreme separation. It is not necessary to change the
angle or position of the microphones in order to change the stereo image. This feature
can really speed up the time-consuming process of finding a “sweet spot” that provides
both good tonal quality and good imaging.
What are the best applications for M-S?
M-S does an excellent job of capturing the natural sonic perspective of acoustical
ensembles.
Orchestral and choral recording: use an M-S pair for the central array
MID
SIDE