Search found 5459 matches
- Thu Jan 16, 2014 5:46 am
- Forum: Pro Audio Design
- Topic: Summing Left & Right but lowering Center information
- Replies: 21
- Views: 43061
Re: Summing Left & Right but lowering Center information
Is there a simple way to sum L & R and still be able to lower the centre info? Like to try this in a compressor design with a single sidechain where L&R are summed before the threshold detector. Maybe a potentiometer? If L&R are summed ahead of the detector all that you will have is cen...
- Thu Jan 16, 2014 4:49 am
- Forum: Pro Audio Design
- Topic: Summing Left & Right but lowering Center information
- Replies: 21
- Views: 43061
Re: Summing Left & Right but lowering Center information
Well after a good night's sleep and a cup of coffee that seems to make perfect sense.Well mono-ing the signal after a M/S processor with a wide control will just turn your wide control into an expensive level control
- Wed Jan 15, 2014 7:23 pm
- Forum: Pro Audio Design
- Topic: JR's Variable Time Constant Integrator
- Replies: 9
- Views: 15628
Re: JR's Variable Time Constant Integrator
Thanks John. OK so I have a clue about what Rx may do. It's worth stuffing some parts on a protoboard to see what happens. The 2252 is going EOL but the 4316 RMS detector is very easy to apply as a replacement. It's low enough cost the 4316's VCA could simply not be used and the 218X family or 2162 ...
- Wed Jan 15, 2014 4:48 pm
- Forum: Pro Audio Design
- Topic: Summing Left & Right but lowering Center information
- Replies: 21
- Views: 43061
Re: Summing Left & Right but lowering Center information
Mono-ing the signal after a M/S wide control will not work as it's not a mono compatible process It's been a long day so I need to think about that. Are you sure? I'm reminded of this thread: http://www.proaudiodesignforum.com/forum/php/viewtopic.php?f=6&t=110&p=890 What's discussed there i...
- Wed Jan 15, 2014 9:23 am
- Forum: Build
- Topic: Mid Side M-S Matrix Construction Information
- Replies: 121
- Views: 439113
Re: Mid Side M-S Matrix Construction Information
Think I'm working out that design with a 10uf series and for 20hz cutoff a 795k shunt. I think you mean 796 Ohms for a 20 Hz cutoff. However I'd use a film cap to lower distortion. 0.47uF for 20 Hz is about 17K Ohms minus a little change. 18K/0.47uF is 18.8 Hz and probably close enough. The bias re...
- Wed Jan 15, 2014 9:12 am
- Forum: Pro Audio Design
- Topic: JR's Variable Time Constant Integrator
- Replies: 9
- Views: 15628
Re: JR's Variable Time Constant Integrator
What does Rx do?
- Tue Jan 14, 2014 12:34 pm
- Forum: Build
- Topic: Mid Side M-S Matrix Construction Information
- Replies: 121
- Views: 439113
Re: Mid Side M-S Matrix Construction Information
I'd like to be able to have say 4 or 5 selectable frequencies, and with the 2 order one that may be too complex if I have to change more than 1 component etc, with 1st order I believe it's just changing the shunt resistor, I believe. Correct. Make sure one resistor is always in circuit to provide a...
- Tue Jan 14, 2014 8:28 am
- Forum: Pro Audio Design
- Topic: THAT DN130: first order state variable filter
- Replies: 13
- Views: 20248
Re: THAT DN130: first order state variable filter
I think using VCAs for filter control make a lot of sense in stomp box effects and voltage-controlled synth applications. Anywhere you want an "organic" sound controlled by knobs. Or where there's a requirement for zero latency... I noticed that Yamaha has just introduced a hybrid analog p...
- Tue Jan 14, 2014 8:04 am
- Forum: Pro Audio Design
- Topic: THAT DN130: first order state variable filter
- Replies: 13
- Views: 20248
Re: THAT DN130: first order state variable filter
When I was commissioning SSLs I was never very happy to see one of those even in their day. I think GearSlutz has some threads on the SSL683. I do think that for analog EQ, given the cost of high quality multi-section pots and switches, substituting VCAs or DPOTs seems to make sense. As JR has been ...
- Tue Jan 14, 2014 7:27 am
- Forum: Pro Audio Design
- Topic: THAT DN130: first order state variable filter
- Replies: 13
- Views: 20248
Re: THAT DN130: first order state variable filter
Doug - Somewhere in the back of my mind I recall SSL doing a stereo programmable bus equalizer that was under automation control. It was the SSL 683... I recall it having dBx 2150 VCAs in it and being a state-variable parametric design. I might have drawings of it. Theres' one on eBay right now for ...