Tag «Signal Processing»

Binaural Synthesizer/Mono to Stereo Converter for Small Speaker/Phones

This simple circuit can be used to drive two high-impedance loudspeakers or stereo phones, taking monophonic input (one channel),  to produce a stereo signal which spread along the midway between loudspeakers when the input signal contain many frequency components. This circuit has two channels, left and right, right channel has high-pass active filter and left …

60-dB Range Compressor For Audio

A compressor circuit shown in the schematic diagram below can produce consistent output of 1.4V P-P over entire 60dB range that is very useful for audio level/volume stabilization.  As the main components, this circuit uses a 741 opamp and JFET. With input range of 20mV to 2oV, this circuit has delay time of 0.4s (decay …

Analog Multiplier-Divider with 4136 Op-Amps

This unique circuit below can be used as divider and multiplier. This circuit is formed by all four sections of a 4136 . The Q1 through Q4 can be any PNP transistor, but that must matched transistors. The transistor matching determine the acurracy of the divider and multiplier circuit. Here is the schematic diagram of …