Abstract: A system and method for localization of sounds in 3-D space using Head Related Transfer Functions (HRTFs) are disclosed herein. A plurality of audio signals and/or sound sources, or “voices”, represented by data, such as one or more audio files or streaming audio data, is transmitted from an audio source, such as a compact disc player, to an audio processing system. The audio processing system, in one embodiment, prioritizes the voices based on characteristics of the voices, such as the relative listening benefit of sound localization of a particular voice. In one embodiment, a finite impulse response (FIR) filter is used to apply a HRTF to the voices. The audio processing system distributes up to a fixed number of coefficients among the voices, where the distribution of the coefficients, in one embodiment, is based on the priority of each channel. Those voices having a higher priority than other voices could have a greater number of coefficients assigned to them than the lower priority voices.

Abstract: A system and method for virtual localization and/or virtual motion of an audio signal are disclosed herein. The audio signal, represented by data such as an audio file, can be transmitted from an audio source, such as an MP3 player, to an audio processing system. The audio processing system, in one embodiment, buffers the audio data in a circular buffer. As the data is being buffered, one or more sample rate conversion units read data from the circular buffer and process the data to generate two or more unmodified channels. In one embodiment, data is read from a first buffer location of the circular buffer to generate a first unmodified channel, while at the same time, data is read from a second buffer location, different from the first buffer location, to generate a second unmodified channel. The difference between the two buffer locations, in one embodiment, is representative of a virtual inter-aural time delay.

Abstract: A system and method for localization of sounds in 3-D space using Head Related Transfer Functions (HRTFs) are disclosed herein. A plurality of audio signals and/or sound sources, or “voices”, represented by data, such as one or more audio files or streaming audio data, is transmitted from an audio source, such as a compact disc player, to an audio processing system. The audio processing system, in one embodiment, prioritizes the voices based on characteristics of the voices, such as the relative listening benefit of sound localization of a particular voice. In one embodiment, a finite impulse response (FIR) filter is used to apply a HRTF to the voices. The audio processing system distributes up to a fixed number of coefficients among the voices, where the distribution of the coefficients, in one embodiment, is based on the priority of each channel. Those voices having a higher priority than other voices could have a greater number of coefficients assigned to them than the lower priority voices.