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Figure 1

Classic Blumlein or “coincident miking

technique

Mid-Side Technique:

In the early days of stereo radio broadcasting, there was a need for a mic setup that would

allow for simultaneous stereo and mono feeds from the same mic array and for electronic

fiddling with the severity of the stereo effect.

The result was what is known as the mid-side microphone technique. One mic faces

sideways, one faces forward as shown in Figure 2, and they are connected as shown in

Figure 3.

When the outputs of the pair of microphones are combined at the mixer, they will behave

like a pair of microphones, one facing left and one right, provided that the sensitivities of

the mics are equal and the mixer channel gains are equal.

Turning down the side mic all the way will give a mono pickup; as the side mic is turned

up, the stereo effect will gradually appear.

If the outputs of the mid and side microphones are recorded on separate tracks, the

electrical connections shown in Figure 3 could be made at the mixer outputs and the

adjustment of the stereo separation could be done during mixdown, rather than during the

actual recording - very useful for live recording.

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Royer SF-1 Spezifikationen Seite 12