There are two major categories of recording approaches for multichannel sound reproduction: coincident and spaced microphone arrays. Coincident techniques assume that the microphones are essentially at the same point in space and they provide stable localization of discrete sound events. In contrast, spaced techniques provide a better enveloping sense of the ambient reverberant sound, at the expense of localization performance. In this research a parametric processing method is presented for spaced microphone array recordings using the principles of Directional Audio Coding (DirAC), knowledge of the array configuration, and the directional response of the microphones. The method achieves equal or better quality relative to the standard high-quality version of DirAC and it improves the common direct playback of such recordings by offering improved and stable localization cues and reduction of coloration issues at all frequencies.
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