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How to Connect a Fader With Audio Input and Output : 14 ...
https://www.instructables.com/How-to-Connect-a-Fader-with-Audio-Input-and-Output/
A fader is one of a basic component for mixing console. You can dynamically control your source with the movement of a fader. There are already several way to use push buttons in your projects (e.g. hacking mouse and keyboard, or Arduino, gainer, MCK ). This probides alternative way to use faders with audio input and output.
Auto Fade Implementation on Audio Signals
https://www.eeweb.com/auto-fade-implementation-on-audio-signals/
Auto fade is intended for voice over stage where one needs to fade the background audio during the presence of several voice sections. This circuit gives advantage to radio station disc jockeys and for announcements made on top of music in malls to call the shopper’s attention, in hospitals, in airports, and other establishment.
mixer - Digitally controlled audio fader circuit ...
https://electronics.stackexchange.com/questions/146520/digitally-controlled-audio-fader-circuit
Or you can use digital pot chips like AD5242 series dual I2C digital pots, coupled with some op amps.. Here is a reference design for you: simulate this circuit – Schematic created using CircuitLab. The two pots there is the digital pot chip AD5242BRUZ10 commanded by the Arduino. You can program the Arduino to handle MIDI interface and plug this into your …
Audio fader IC? - Audio - Arduino Forum
https://forum.arduino.cc/t/audio-fader-ic/658452
And this fader circuit will be placed after the pre-amp volume-tone-balance control and before the amplifiers. So its all pre-amp level. And that is also the point where the 2 channel stereo has to become 4 channel with a fader control. Everything else is accounted for.
5 Simple Audio Mixer Circuits Explained - Homemade …
https://www.homemade-circuits.com/4-channel-dj-audio-mixer-circuit-part-1/
This single transistor mixer circuit is designed for amplifying the any input signal with a 50 mV, to an output signal of around 500 mV, which is more than enough for most power amplifiers configured at the output. 5 Stage DJ Mixer
Audio Switch Notes - Neat Circuits
https://www.neatcircuits.com/audiosw/index.html
The circuit should mute sufficiently any audio from 15 hz to 20 khz. Mute level should *easily* reach -50db. If not, you don't have the circuit wired correctly. This circuit will also fade by providing a variable voltage at the junction of the 33k and 1M0 resistors (R3 and R4). The fade will be low in distortion until -20 db has been reached.
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