Go Down

Topic: op amp audio amplifier circuit help/suggestion (Read 5529 times) previous topic - next topic



I want to extend my vu meter to be frequency based, I was thinking of having three or four bands with each band having it's own vu meter based on the resistor ladder/comparator circuit.

I am not sure whether I should take the signal through three opams with unity gain which will feed three copies of the input signal to three separate filters or whether I can skip this buffer stage and go straight into a branch to three filters without the opamps splitting out/bufferong three copies of the signal first to three separate filters.

I have added an additional line out from my Audino synth so either way I can figure out what works using the Audino as a frequency generator.

If anyone has some previous experience, please share otherwise I will get back withnhow I get on in a few days time.


Read this
then watch this



You want a simple Spectrum analyzer then ?!? like this http://www.youtube.com/watch?v=BtkPDLJpEbQ&feature=related ?!?
Im actually doing one with with the LA3607x2  and an LCD 16x2 with bars,using the last two for the stereo(l/r)
10 LET Loop=Infinite
20 GO TO 10

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131