Search found 5449 matches

by mediatechnology
Sun May 31, 2009 7:04 pm
Forum: Pro Audio Design
Topic: VCA Compressor Gain Reduction Limit
Replies: 26
Views: 51561

Re: VCA Compressor Gain Reduction Limit

One suggestion when operating in the side chain is to scale the voltages up so you are not trying to parse single digit mVs So true. If you do this, remember that the Ec driving the VCA must be from a low impedance source. If you expand the dB/V relationship be sure to attenuate it at the VCA activ...
by mediatechnology
Sun May 31, 2009 2:28 pm
Forum: Pro Audio Design
Topic: VCA Compressor Gain Reduction Limit
Replies: 26
Views: 51561

Re: VCA Compressor Gain Reduction Limit

Yeah they defo run out of steam but I think that is what lends them to sounding cool. I have measured a number of hardware boxes that do this. In many of those it's also quite likely that the gain cell runs out of steam too. I should have mentioned that. FETs and tubes come to mind. Opamp wise I ne...
by mediatechnology
Sun May 31, 2009 10:09 am
Forum: Pro Audio Design
Topic: VCA Compressor Gain Reduction Limit
Replies: 26
Views: 51561

Re: VCA Compressor Gain Reduction Limit

Thanks for joining us Tom! Without having fully thought this through I think what you may want is a precision diode clamp with a variable reference placed near the end of the sidechain but before makeup gain. I may be wrong, my response is based on instinct. That variable reference, Vref, is the poi...
by mediatechnology
Sat May 23, 2009 10:51 am
Forum: Build
Topic: Mid Side M-S Matrix Construction Information
Replies: 121
Views: 432812

Re: Mid Side M-S Matrix Construction Information

Hey that's cool. We got something to work from in the interim.
by mediatechnology
Mon May 18, 2009 7:44 pm
Forum: Build
Topic: Mid Side M-S Matrix Construction Information
Replies: 121
Views: 432812

Re: Mid Side M-S Matrix Construction Information

Cool Paul thanks.

The single encoder you built can also be a decoder if you re-label input left and right mid and side. The mid and side ouputs then become left and right out. So what you have right now can do both if you want to run decode experiments.

This is the "half-duplex" build. :D
by mediatechnology
Mon May 18, 2009 7:40 pm
Forum: Document
Topic: Panasonic BBD Catalog
Replies: 0
Views: 6441

Panasonic BBD Catalog

I scanned and posted this for electro-music.com and realized that I may never have linked to it here.

https://www.ka-electronics.com/Images/p ... ic_BBD.pdf Warning 34 MB
by mediatechnology
Thu May 14, 2009 9:03 pm
Forum: The Peabody Lounge
Topic: Component Video to S Video Possible?
Replies: 0
Views: 6275

Re: Component Video to S Video Possible?

Unfortunately I don't think it is that simple:

http://www.svideo.com/appletv2tv.html
by mediatechnology
Mon May 11, 2009 6:43 pm
Forum: Pro Audio Design
Topic: Mid Side M-S Matrix Uses No Precision Resistors
Replies: 271
Views: 619795

Re: Mid Side M-S Matrix Uses No Precision Resistors - Boards 5/1

It's only one I/O (two connections) per module, right?

The 500-series is limiting in that one regard.
by mediatechnology
Mon May 11, 2009 4:24 pm
Forum: Pro Audio Design
Topic: Mid Side M-S Matrix Uses No Precision Resistors
Replies: 271
Views: 619795

Re: Mid Side M-S Matrix Uses No Precision Resistors - Boards 5/1

Thanks for the suggestion Paul.

I think the problem for 500-series is a limited number of I/O connections to the back-plane. It would have to occupy several slots just to get the connections.
by mediatechnology
Mon May 11, 2009 4:21 pm
Forum: Build
Topic: Mid Side M-S Matrix Construction Information
Replies: 121
Views: 432812

Re: Mid Side M-S Matrix Construction Information

Gold wrote:Does the square pad indicate + for the electrolytic caps?
Yes, square = positive.