Processing circuit for widening stereo effect

Processing circuit for widening stereo effect

Shown is a processing circuit that performs a broadening effect on ordinary stereo signals . A wide stereo sound effect. This kind of circuit can be used in radio cassette recorders. The circuit is simple and the effect is obvious. This circuit is composed of two main amplifiers. When the two channels of signal input are separated, one signal is sent to the input end of the other amplifier through a resistor. The phases of the signal injection ends of the two input channels are opposite, so that each channel has It contains another signal component with different phases, which is synthesized to have a broadened stereo effect.     The principle of the circuit is to amplify the two stereo signals by two operational amplifiers respectively. At the same time, a part of the signal from each channel is cross-sent to the inverting input end of the other amplifier, so that each channel will have the inverted signal component of the other channel. This enhances the reverberation component in the music. This circuit can be implemented using an operational amplifier (4558).