Panning with delays

in Blog

10 January 2010


A new Max/MSP panning patch that uses common stereo microphone arrays as the basis for positioning recorded sounds in auditory space.

Mixing console pan pots use amplitude scaling to provide intensity cues that position a sound in a stereo mix. But in real life, our brains also use time of arrival differences between our ears and head related transfer functions to help us locate a sound. Using only intensity cues to position recorded sounds in a stereo field usually results in accurate positioning, but with a lack of space or depth.

stereoarraypanner~ addresses this by using both time of arrival differences and amplitude curves, based on real life stereo microphone arrays. It adds depth and realism to multitracked studio recordings. If the studio recordings are very dry, a convolution reverb can add the acoustic space around the ‘virtual’ performers.

The distance and angle between the two microphones is continuously variable, as is the directivity of the microphones, from omnidirectional to figure of eight.

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