In previous papers the Multichannel Microphone Array Design (MMAD) procedure has been used mainly to determine the design of arrays giving complete 360° coverage of the sound field. Many sound recording engineers however use the main microphone array to cover only the front sound stage, and add in early reflections and reverberation either by artificial means (electronic generation) or by using a second array in the reverberation field. This paper describes MMAD procedure applied to only front coverage of the main sound stage using 3,4 or 5 channels-microphones, covering any desired angle within the front hemisphere, and for the usual 1st order microphone directivities. Various array alignments are described in the form of the arc-of-a-circle with different radius. All arrays described are critically linked (seamless) within the front hemisphere.
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https://aes2.org/publications/elibrary-page/?id=12887
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