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Method for changing from double track to multi-track and acoustic treater

A two-channel, multi-channel technology, applied in two-channel systems, stereo systems, electrical components, etc., can solve problems such as distortion and incorrect operation

Inactive Publication Date: 2006-08-16
PRINCETON TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If there is only two-channel sound source, and it is hoped to use the above-mentioned systems to input two-channel and play multi-channel, it will produce erroneous calculations and cause distortion effects

Method used

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  • Method for changing from double track to multi-track and acoustic treater
  • Method for changing from double track to multi-track and acoustic treater
  • Method for changing from double track to multi-track and acoustic treater

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Embodiment Construction

[0020] Please refer to figure 1 , which is a schematic diagram of the surround field configuration for converting two-channel to multi-channel in the present invention. Listener 1 is in the center, and nine sound devices are arranged around the field, namely CT, L, CRL, RL, RCT, RR, CRR, R and SUB.

[0021] Each audio device is fed into traditional two-channel audio L in (on behalf of the left channel audio) and R in (representing the right channel sound), through the specially designed sound processor circuit 2 (see figure 2 ) to generate their own special output.

[0022] The special outputs of the nine audio devices are as follows:

[0023] 1. CT: L in +R in

[0024] 2. L: L in

[0025] 3. CRL: 2L in -(1 / 2)R in

[0026] 4. RL: 2L in -R in

[0027] 5. RCT: L in +R in

[0028] 6. RR: 2R in -L in

[0029] 7. CRR: 2R in -(1 / 2)L in

[0030] 8. R: R in

[0031] 9. SUB: (L in +R in )×LPF

[0032] where L in Represents the left channel audio, R in Re...

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Abstract

The invention provides a method for converting the traditional uncoded double track sound system into real multi track system wherein instead the program of coding and decoding is not required, the original sound is used for various phase processing, then surrounding distribution, thus achieving the optimum playback effect. The invention also provides a sound processor to realize the method.

Description

field of invention [0001] The present invention relates to a method for converting two-channel to multi-channel and its audio processor, especially to achieve the purpose by using the original sound for various phase processing. Background of the invention [0002] At present, the multi-channel Dolby system (Dolby System) and similar systems are very popular in audio systems. These systems focus on encoding the existing multi-channel into two-channel transmission, and then restore it to The original multi-channel while playing. [0003] If there is only a two-channel sound source, when it is hoped to use the above-mentioned systems to input two channels and broadcast multiple channels, erroneous calculations will occur and the effect of distortion will be formed. [0004] Therefore, if there is only a two-channel sound source, and a multi-channel effect is desired, a special design must be sought. Summary of the invention [0005] Therefore the purpose of the present inv...

Claims

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Application Information

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IPC IPC(8): H04S1/00
Inventor 王克刚
Owner PRINCETON TECHNOLOGY