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Audio Ltd. | CEDAR Audio Ltd. | HHB Communications Ltd. | Sadie Studio Audio & Video Ltd. |
Schoeps GmbH | Sonosax S.A. | Salient Sciences | Pinguin |
5.0 SURROUND RECORDING WITH DOUBLE-MS
”Double M/S” is an improved version of the well-known M/S stereo recording technique. In addition to a frontfacing cardioid or supercardioid ”mid” microphone and a figure-8 ”side” microphone, a rear-facing directional microphone is set up.
The front- and rear-facing microphones share the signal of the figure-8 microphone so as to form two complete, back-to-back M/S systems. One M/S system then provides the three front channels (the center channel signal being provided directly by the mid microphone of the front system), while the other system provides the two surround channels. An arrangement of this kind allows flexible processing of the stereo surround image width and post-production adjustment for both of the M/S pairs.
The concept of such recording techniques is shown below:
”Double M/S” is an improved version of the well-known M/S stereo recording technique. In addition to a front-facing cardioid or supercardioid ”mid” microphone and a figure-8 ”side” microphone, a rear-facing directional microphone is set up. The front- and rear-facing microphones share the signal of the figure-8 microphone so as to form two complete, back-to-back M/S systems. One M/S system then provides the three front channels (the center channel signal being provided directly by the mid microphone of the front system), while the other system provides the two surround channels. An arrangement of this kind allows flexible processing of the stereo surround image width and post-production adjustment for both of the M/S pairs.
This complete set for Double M/S recordings entails the following:- 2 × CCM 4VL cardioid compact microphones (or a CCM 41VL supercardioid can be substituted for the forward-facing cardioid at a small increase in price)
- 1 × CCM 8L figure-8 compact microphone
- special shock mount for the three compact microphones
- adapter cable from three Lemo plugs to one XLR-7 output
- WSR DMS LU basket-type windscreen
- WJ DMS ”Windjammer” windscreen cover
- K DMS 5 U; 5-meter (16.5') XLR-7 extension cable
- DMS passive splitter box
- You can get the plug-in here.
- The DMS splitter box is a passive device that simplifies connecting a double M/S microphone array to the phantom-powered inputs of preamplifiers or mixers that contain matrixing circuitry (e.g. 2 × SCHOEPS VMS 5 U). It divides the three signals into five (the center channel plus the front- and rear-facing M/S pairs), and prevents the two microphones which serve dual functions from being powered twice.
KEY FEATURES :
- requires only three microphones and channels for 5.0 surround
- very small, lightweight array
- can be well protected against wind (with “fur” Windjammer)
- matrixing can be performed during or after recording