US 2006/0078129 A1 · Sound system with a speaker box having multiple speaker units

Abstract

Presented is a surround sound system including a loudspeaker enclosure containing a left speaker, a right speaker, and a center speaker. The speakers receive separate audio signals previously processed by a channel decoder. A virtualizer performs a head related transfer function (HRTF) on at least two audio channels. First and second summers respectively combine a front L signal with a post-HRTF L signal, and a front R signal with post-HRTF R signal. The respective combined front L and front R signals are then provided through respective amplifiers to the front L speaker and the front R speaker so as to produce front and rear signals. In another aspect, a loudspeaker enclosure contains first and second left speakers, first and second right speakers, and a center speaker. Wherein the second left speaker and the second right speaker receive respective left surround and right surround post-HRTF virtualizer audio signals.

Claims13

Dependent claims

A sound system for producing surround sound comprising:

a loudspeaker enclosure containing a front L speaker, a front R speaker, and a center speaker;
an audio source operable to produce separate audio track outputs;
a channel decoder connected to the audio track outputs and configured to provide output audio channels;
a microprocessor interconnected with at least the audio source and the channel decoder, wherein the microprocessor is operable to control the sound system;
a virtualizer connected to at least two output audio channels, wherein the virtualizer is operable to perform a head related transfer function (HRTF) on the connected output audio channels;
a digital to analog converter (DAC) coupled to the channel decoder and the virtualizer, wherein the DAC is operable to provide corresponding analog output signals;
a plurality of corresponding amplifiers connected to respective corresponding DAC analog output signals, wherein the plurality of amplifiers are operable to provide amplified audio signals to the respective front L speaker, the front R speaker, the center speaker, and a sub speaker.

4 more elements

Dependencies are inferred from the claim text.

Sound system with a speaker box having multiple speaker units

Life of this patent

Sound system with a speaker box having multiple speaker units

Life of this patent

Abstract

Claims13