This idea came about when someone was tweeting on twitter that they were having problems with rumble noise and high pitch squealing from some air conditioner unit. So I thought I would make a filter for people to combat such problems, basically this thing attenuates anything below 300Hz and anything higher than 3KHz which is pretty much everything outside of the vocal range.
This could be a useful thing to combine with the high quality Microphone Preamp I designed some time ago located HERE
It's been a while since I posted a project because as you (may) know I build up things before I post them so I know they work however I've had bugger all money to buy stripboard, I actually had to de-solder an old project to get enough to prove this one so if anyone can help me out with some stripboard I'd be most grateful!
Paul in the
Lab is here to help
Everyone into electronics
All ways feel free to
Seek my advice
Either using the
Contact button or my email
Lately I am always at the computer because
I am always designing stuff though I did buy a new
Camera recently, I remember the first thing I built was the
Knight rider LED scanner which I only
Added a few days ago, anyway I
Digress, hope you enjoy my
Site
anyway here is the filter
Like this;
ReplyDeleteI'm going to have a play with it in a sort of home-brew intercom for my open car - the mic's are always going to be noisy due to wind noise etc, but this circuit might help a little.
Thanks Paul