Method for converting two-channel audio system into multichannel audio system and an audio processor thereof
AssigneePrinceton Technology Corporation
InventorKo-Kang Wang
Life of this patent
Estimating the term…
Abstract
The present invention provides a method to convert the conventional two-channel uncoded audio system into multichannel system. There is no coding/decoding procedure in the invention, but just process the phases of the original two audio channels to provide different audio sources for surrounding distribution and achieve the best effect of reproducing the original audios. The present invention also provides an audio processor for implementing the method.
Claims6
A method for converting two-channel audio system into multichannel audio system, wherein a pair of two-channel audios are not coded and decoded, but just being processed with the phases thereof for combination and then for surrounding distribution.
An audio processor for converting two-channel audio system into multichannel audio system, comprising an operational amplifier, one channel of the two-channel audio system is inputted into a “+” terminal of the operational amplifier through a voltage divider, another channel of the two-channel audio system is inputted into a “−” terminal of the operational amplifier through a switch and a resistor R3, an ouput of the operational amplifier is fed back to the “−” terminal of the operational amplifier through a resistor R4, said switch is used to control the inputting of said another channel.
Dependencies are inferred from the claim text.