Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 40,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to original material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

Audio Circuits:  Mixers Circuits  Page 3
Audio Mixer Circuits:   #'s-H      I- P      Q-Z
Amplifier -- Main Page          Audio Circuits -- Main Page
Last Updated on: Tuesday, August 18, 2015 06:51 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

2 Input Mixer -  Sometimes there is need to combine the output of two line level audio sources to be fed to one input. A standard way in professional audio is to use a mixing desk, but on home audio system you might want to look for a simpler and less expensive alternative. Some people have suggested of combining two audio outputs with an "Y-adapter" which is ment to split one output. Those adapters are just one male connector and two feamle connector directly wired to each other in the followin way: . . .  [Copyright Tomi Engdahl 1997,1999]

 

3 Line Inputs, 6 Input Mixer 3 Mic inputs -  The mixer circuit below has 3 line inputs and 3 mic inputs. The mic inputs are suitable for low impedance 200-1000R dynamic microphones. An ECM or condenser mic can also be used, but must have bias applied via a series resistor. As with any mixer circuit, a slight loss is always introduced. The final summing Amplifier has a gain of 2 or 6dB to overcome this. The Input line level should be around 200mV RMS (. . .  [Andy Collison's website]

 

3 Line Mixer -  This project is a 3 or more lines mixer. For more than 3 inputs you can repeat the input parts  (P=10K R=22K). It powered with 9Vdc. . . .  [Designer's name not given]

 

6 Input Mixer -  The mixer circuit below has 3 line inputs and 3 mic inputs. The mic inputs are suitable for low impedance 200-1000R dynamic microphones. An ECM or condenser mic can also be used, but must have bias applied via a series resistor. As with any mixer circuit, a slight loss is always introduced. The final summing Amplifier has a gain of 2 or 6dB to overcome this. The Input line level should be around 200mV RMS (. . .  [Andy Collinson, designer]

 

Audio mixer (ASCII) -  . . . 

 

Audio Mixer with Multiple Controls -  When recording sound from several orchestral instruments being played by different musicians using a single microphone, the only way to adjust the sound balance is to change the position of the musicians relative to the microphone. When recording direct to stereo master tape, itís crucial to make sure that all the voices and instruments sound right before you hit the record button. . . .  [© EFY Enterprises Pvt. Ltd. All rights reserved.]

 

Audio Signal Source -  This is a lovely project for home constructors keen on building their own test and measurement (T&M) equipment. It makes use of the ICL8038 signal generator chip, manufactured by Intersil. An improved version, made by Exar corp. is available (XR8038A). It can be used to produce three types of waveforms, sine, square and triangle. The frequency, Amplitude and duty cycle can be varied, and selection of waveform is done digitally. . . .  [Tony and Wilfred of Mixed Fruit Jam]

 

Audio Voice-Over Circuit -  This is a circuit where a microphone and preamp circuit (voice circuit) have priority over any other audio signal. You can think of this as a one way intercom, if the main Amplifier is used for listening to music, then when the push to talk switch is pressed, the Amplifier is switched to the voice signal. . . .  [Andy Collinson]

 

Circuit Incorporates Mixing andAmplifying Functions -  10-Jul-08 EDN Design Idea   Using an Amplifier with a power-down disable, you can combine the mixer and the Amplifier functions. . .  [by Guus Colman, Guy Torfs, Johan Bauwelinck, and Jan Vandewege, INTEC/IMEC, Ghent University, Ghent, Belgium]

 

Circuit to Connect Telephone Equipment to Audio Mixer -  I have used this type of circuits for quick testing of telephone equipment. This is a quick hack that does not exactly resemble the characteristics of the real telephone network, but is enough for this kind if applications. If you want better simulation, change the resistor to 600 ohm and increase the power supply voltage. And by the way. . . 

 

Ever Amplifier Bridging -  a design for a simple add-on bridging adapter for stereo power Amplifiers. . .  [Rod Elliott - ESP (Original Design)]

 

FET audio mixer -  This simple circuit mixes two or more channels into one channel (eg. stereo into mono) . . .  [Circuit designed by Aaron Cake]

 

High Quality Sound Mixer -  Very ambitious and expected to be very expensive mixer project, modular design. . .  [Rod Elliott (ESP)] 


Audio Mixer Circuits:   #'s-H      I- P      Q-Z
 


HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  2002 - 2015 David A. Johnson & Associates.  All Rights reserved. 
 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.