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Stereo Microphone Techniques - UWE

Stereo Microphone Techniques - UWE

robert Davis

on 17 October 2012

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Transcript of Stereo Microphone Techniques - UWE

Stereo Microphone
Techniques Microphones 'hear' sound from specific areas surrounding the microphone capsule Why record using a
stereo mic arrangement? Four main ways
to set up a stereo pair
of microphones Feeling of being in the room/concert hall
where the music is played Presentation by Robert Davis Adding width and dimension to the listening experience To create a balanced recording of a large group of musicians, choir or orchestra What We'll Cover The reasons for recording with stereo microphones Different responses of microphones Four main techniques for recording with stereo microphones capsule "Polar Response" Omni-Directional Cardioid Bi-Directional/Figure of 8 Shotgun X/Y Coincident Technique Blumlein Method Spaced Pair Technique Mid/side Technique Binaural Technique Mono compatible some mics have switches to change this polar response Extremely realistic stereo Only works wearing headphones Use matched pair of directional mics at 90° Advantages : Disadvantages : Use matched pair of omni-directional mics Advantages : Disadvantages: Potential phase problems due to time delay between mics Microphones can be nearer to the instrumentalists but still
retain a sense of the surrounding space Use one directional mic and one bi-directional mic Advantages: Lots of control over the stereo width at Mixdown Use 'False Head', or in-ear microphones Advantages : Disadvantages: Great for location sound recording Conclusions the rules to stereo mic techniques are: There are no rules! - experiment using the above techniques using different mics in different positions Use your ears - Move the Mics around and listen for"Sweet Spots" "It's all about the blend" - the blend between the individual instrumentalists and between the instruments and the room ambience. Try combinations of Mic techniques on the same source To achieve balanced, close-up recordings
of solo instruments similar to human hearing not so good at picking up widely spaced instruments such as orchestras, choirs etc Captures a wider collection of musicians Disadvantages: (similar to X/Y technique)
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