A typical two high-pass filter circuit
#high-pass filter
#filter circuit
#signal processing
#audio processing
#frequency response
#RC filter
#passive filter
#electronics
#circuit design
#two-stage filter
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Passive subwoofer filter
The schematic shown does not need any power supply because it is a simple low frequency passive filter. It could be useful if you want to drive an extra subwoofer from your stereo system. The circuit filters the frequency ranges...
Central-image-canceller
The circuit is designed to eliminate the vocal portion of an audio signal while preserving the instrumental portion. It achieves this by mixing two channels that are 180° out of phase, allowing the signals that create the center-stereo image to...
Wideband two-pole high-pass filter
The circuit features a cutoff frequency of 10 MHz. Resistor R3 is utilized to prevent the input capacitance of the amplifier from affecting the filter response at the desired frequency. An equivalent low-pass filter can also be derived through the...
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High-Pass 20HZ to 200HZ Filter
A simple circuit, High-Pass filter, variable between frequencies 20HZ until 200HZ, useful in a lot of cases elaboration of sound signals. The regulation is achieved with the double potesometer 47K? and the frequency response in his two extreme places, appears...
Arduino Vocal Effects Box
This Arduino-powered vocal effects box pitch shifts and distorts incoming audio signals to produce a wide variety of vocal effects. This project is an experiment with real-time digital signal processing using Arduino. It samples an incoming microphone signal at a...
Audio Beat Detect ?« Electronic Product Design
This circuit employs a digital potentiometer to enable the microcontroller to automatically adjust the circuit's gain according to the ambient audio volume. However, a standard potentiometer can be used if automatic adjustment is unnecessary. The low-pass filter design is based...
ARRL Handbook Audio Intelligibility Enhancer
Assistance is sought for building the N4GG audio intelligibility enhancer project as detailed in the ARRL Handbook. A circuit board has been ordered from Far Circuits, but there are difficulties in sourcing the necessary components. Attempts have been made to...
Interpolating Scanner Circuit
This design is for an interpolating scanner, a circuit featuring multiple signal inputs, a control voltage input, and a signal output. The output selectively transitions between inputs, smoothly fading from one to the next as the control voltage increases. A...