Discrete dynamic positioning of audio signals in a 360.degree. environment

Abstract

A software algorithm is disclosed which allows audio signals to be positioned discretely and dynamically in a 360.degree. environment, the center of which is assumed to be the position of the user-listener. The algorithm includes: a) proprietary knowledge of the sound sources (such as a synthesizer chip); b) proprietary knowledge of the number of independently addressable couplers (i.e. how many speakers are employed); and c) a software driver incorporated on a host, computer, or a stand-alone device which includes the algorithm for routing the sound sources to the transducers at the proper volume levels. In a preferred embodiment of the invention, the algorithm functions by controlling the amplitude attenuation of each source as it is coupled to the transducers, and the relationship of the amplitudes sent to each transducer by means of reference values contained in a matrix table native to the algorithm. By changing the amplitude attenuations in accordance with the table of values, the perceptual location of each source can be changed within the 360.degree. environment, such that the listener is immersed within the audio environment. The method of the invention, and the matrix operating therewith, will be seen to simplify computer programming for a surround sound environment, and with user-listener interaction thereof.

Dependencies are inferred from the claim text.