True Systems PRECISION 8i Bedienungsanleitung Seite 27

M/S decoding is a particularly creative feature of the PRECISION 8i.
While the MS 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.
It is a stereo microphone placement technique that uses a center,
forwardfacing omni or cardioid mic (Mid) and a sidefacing figure 8 mic
(Side). The signals from these two mics are passed through matrix cir-
cuitry that combines them in particular phase and level relationships to
produce a stereo L and R output.
What good is MS versus the typical XY microphone placement? Origi-
nally, MS 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 MS?
MS does an excellent job of capturing the natural sonic perspective of
acoustical ensembles.
• Orchestral and choral recording: use an MS pair for the central array
• Drum kits: use an MS pair for drum overhead micing.
• Vocal and instrumental ensembles: use MS to give realistic perspective
to backup vocals or instrumental groups.
• Individual instruments or vocals: try MS on acoustic guitar and in
situations where you wish to capture room ambience.
• Broadcast/film sound: use MS to capture audience noise or back-
ground ambience. MS can also be used in TV and film work to
match the sonic image width to the visual image width.
PRECISION 8i
More about M/S
(Mid/Side Decoding)
What is M/S
benefits
SIDE
TRUE systems
MID
E