\u00abThe C700S microphone has three capsules; an additional side-facing figure-8 capsule is added to the two in the C700A. Any coincident stereo pickup can be derived from mixing these three signals together, and like the C700A, the signals can be recorded individually and all aspects of image width and pattern control may be adjusted in the mixdown. With the three capsule signals, any number of microphone outputs may be created, each one pointed anywhere in the plane around the microphone.<\/p>\n
The capsule assembly in the Series Seven is internally shock mounted, so that the mic may be attached directly to a stand through its yoke mount without any external accessories. <\/p>\n
The outputs of the C700A microphone are designated W for omni\/pressure, X for front-facing figure-8\/gradient; the C700S also has a Y output for side-facing figure-8\/gradient. These native output signals from the microphone are equivalent to Soundfield \u201cB-format\u201d except that the height or \u201cZ\u201d channel is absent. Any desired pattern can be obtained by mixing these signals, and with the C700S the resultant output may be pointed in any direction. Any number of output channels may be derived by mixing additional copies of W, X and Y in different ratios.<\/p>\n
Pattern selection (C700A and S)
\nOmni: all W
\nSubcardioid\/hypocardioid: W with X mixed in about \u20136 dB
\nCardioid: equal amounts of W and X
\nSupercardioid\/hypercardioid: X with W mixed in about \u20136 dB
\nFigure 8: all X
\nTo reverse direction (unidirectional patterns favoring the rear of the mic) invert phase of the X signal
\nMS Stereo (C700S)
\nThe M or mid signal is formed by mixing W and X. If the signals are at the same level, a cardioid pattern will result.
\nThe Y signal is equivalent to the S or side signal in MS Stereo.
\nXY Stereo (C700S)
\nMS can be converted to left\/right using the usual matrix, M+S=left, M-S=right. On a mixer, this is accomplished by connecting the W and X signals to mixer inputs panned center. A Y-cord is needed to split the output of the Y channel into two more mixer inputs. The first of these is panned left, the second is phase inverted and panned right.
\nPattern is adjusted by controlling the ratio of W and X; raising the level of the Y and inverted-Y signals panned left and right controls the width.
\nThe five primary surround channels can be derived using the XY stereo recipe above for the front, and making a duplicate set (with the X signal inverted) for the rear.
\nLeft front: W+X+Y
\nCenter front: W+X
\nRight front: W+X-Y
\nLeft rear: W-X+Y
\nRight rear: W-X-Y
\nThe W signal has flat response to below 20 Hz and can be used alone, with suitable lowpass filtering, as the 0.1 or LFE channel.
\nSide-facing channels may be derived using the W and Y signals just as forward-facing channels are made with W and X. \u00bb<\/p>\n","protected":false},"excerpt":{"rendered":"
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