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Topic: I want make a audio mixer help (Read 194 times) previous topic - next topic

RS_Erag

Hello friends help me to make a audio mixer.

KeithRB

http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/opampvar5.html

elac

It's all about the skills

RS_Erag


KeithRB

The arduino isn't a good enough adc to be a *one* channel mixer, much less multichannels. You also do not have a real DAC output, you might need to go to due.

DVDdoug

Although I don't know anything about your requirements, I'd suggest is building a digitally controlled analog mixer.

A purely digital mixer will require an ADC on each input, a DAC for each output (if it's stereo or otherwise has multiple outputs) and probably a DSP chip.   Just the fact that you are posting a basic question here seems to indicate you're not ready for a big project like that...

I'd start with an op-amp based summing amplifier (easy to build).   Then as a prototype/breadboard version add some pots to the inputs for individual channel-control.   

When that's working and you are getting "clean sound" through, etc., you can replace the regular pots with digital pots (and control those pots with the Arduino).

But... Do you have a good reason for going digital?  Do you have an application where an analog mixer isn't appropriate?   

What kind of features do you need?  What about the user interface?   

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