JPS61166696U

JPS61166696U -

Info

Publication number: JPS61166696U
Application number: JP5010685U
Authority: JP
Priority date: 1985-04-04
Filing date: 1985-04-04
Publication date: 1986-10-16

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す構成図、第２
図は従来のステレオ音場効果回路の一例を示す構
成図である。図中、１，５はマトリクス回路、６，７は検波
器、８はレベル比較器、９は可変利得アンプであ
る。 Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a configuration diagram showing an example of a conventional stereo sound field effect circuit. In the figure, 1 and 5 are matrix circuits, 6 and 7 are detectors, 8 is a level comparator, and 9 is a variable gain amplifier.

Claims

[Scope of utility model registration request]

A matrix circuit that creates a sum signal M=L+R and a difference signal S=L−R from two-channel stereo signals L and R, a detector that detects the sum signal M and the difference signal S to obtain the average level, and a comparator that compares the outputs of the detector and outputs a control signal according to the level difference between the signals M and S; a circuit that uses the control signal to reduce the level difference between the signals M and S; A sound field effect device comprising: a matrix circuit that resynthesizes both signals M and S, the difference of which has been reduced, and separates them into stereo signals L' and R'.