Thread: Mixing 4 audio channels to 3?
View Single Post
  #47   Report Post  
Posted to alt.engineering.electrical,sci.electronics.design,sci.electronics.repair,rec.audio.tech
Don Pearce[_2_] Don Pearce[_2_] is offline
external usenet poster
  
Posts: 75
Default Mixing 4 audio channels to 3?
On Wed, 9 Nov 2011 09:07:15 -0800, DaveC wrote:

Your drawing is wrong; signal goes to the inverting (-) inputs and the
Vcc/2 reference goes to the non-inverting (+) inputs.
JF

Thanks guys. Fixed:

http://i44.tinypic.com/r1k8qa.jpg

All else looks good?

Are cap values reasonable? I added C8 & C9 out of habit of seeing in other
designs. Values for these?

Thanks.

What does U4 do?

d
Reply With QuoteReply With Quote