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Surround-sound processing system, device and method

A technology of processing device and processing method, applied in the direction of stereo system, quasi-stereo system, electrical components, etc.

Inactive Publication Date: 2006-10-18
ONKYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So when there are 2 listeners, it is practically impossible to get the ideal surround effect for 2 listeners at the same time

Method used

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  • Surround-sound processing system, device and method
  • Surround-sound processing system, device and method
  • Surround-sound processing system, device and method

Examples

Experimental program
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Embodiment Construction

[0101] figure 1 A conceptual diagram showing the structure of a surround processing system according to an embodiment of the present invention. This system includes a surround processing device 5, a front left speaker SPL, a front center speaker SPC, and a front right speaker SPR connected to the output thereof.

[0102] figure 2 The arrangement of the speakers and the positional relationship of the listener in this embodiment are shown. A front left speaker SPL is placed in front of the first listener 2 on the left, and a front center speaker SPC is placed in front of the right. The front center speaker SPC is arranged on the left front of the second listener 3, and the front right speaker SPR is arranged on the right front. The front left speaker SPL and the front right speaker SPR are symmetrical with respect to the central line 14 connecting the middle point 5 of the listeners 2 and 3 to the front center speaker SPC. The positions of the listener 2 and the listener 3...

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Abstract

The present invention relates to a surround processing system, which can realize the surround effect without discordant feeling for both left and right listeners side by side. The surround left channel signal SL and the surround right channel signal SR are mixed in the addition means 10 to form a monaural signal. The first monaural signal and the second monaural signal are supplied to the virtual positioning processing means 12 . The first virtual positioning output of the virtual positioning processing means 12 is supplied to the front left speaker SPL and the front right speaker SPR, and the second virtual positioning output is supplied to the front center speaker SPC. With this, virtual sound sources can be generated on the left and right of the listener 2 . It is also possible to generate virtual sound sources on the left and right of the listener 3 . For listeners 2 and 3, the sound from the imaginary surround sources is reversed left and right. However, since the virtual positioning process is performed on the surround signal with a single channel, there is virtually no left-right inversion effect, and a surround effect without discordant feeling can be obtained.

Description

technical field [0001] All disclosures including the specification, claims, drawings and abstract of Japanese Patent Application No. Hei 10-296708 (applied on October 19, 2010) are hereby incorporated by reference into this application. Background technique [0002] The present invention relates to sound image localization processing, in particular to localization processing of imaginary sound sources of multiple listeners. [0003] The reproduction of multi-channel sound uses a front left speaker, a front right speaker, a front center speaker, a surround left speaker, and a surround right speaker. The surround left speaker and the surround right speaker are arranged laterally or behind the listener to generate a sound field that surrounds the listener. However, the installation of the surround left speaker and the surround right speaker has problems such as physical space, so some people have proposed a device that generates virtual sound sources. In this device, the fron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S5/00H04S5/02H04S3/00
CPCH04S3/00
Inventor 竹村和齐笠井让治中武哲郎久本祯俊
Owner ONKYO KK