Importance

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Abstract

Systems and methods are provided for generating processing algorithms, and using such processing algorithms, to efficiently and accurately render virtual sound fields. Systems implementing such techniques can generate a virtual acoustic rendering, from an input audio signal comprising at least one sound source signal. Such systems apply PC weights to the at least one sound source signal of the input audio signal to obtain at least one weighted audio stream, wherein the PC weights were obtained from a principal components analysis of a set of head-related transfer functions (HRTFs); apply a set of PC filters to the at least one weighted audio stream to obtain filtered audio streams, wherein the PC filters were obtained from a principal components analysis of the HRTFs; sum the filtered audio streams into at least two output channels; and transmit the at least two output channels for playback by the at least two speakers, to generate a virtual acoustic rendering to a listener.

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First Claim