Search found 69 matches
- Thu Jun 26, 2008 2:28 am
- Forum: Pro Audio Design
- Topic: Level Detectors, Absolute Value, Peak and RMS
- Replies: 42
- Views: 188172
Re: Level Detectors, Absolute Value, Peak and RMS
This one shows how to select positive, negative, or full-wave peaks: http://www.edn.com/article/CA6339250.html?spacedesc=DesignIdeas&taxid=10543&industryid=44217 And from the reference, a neat envelope follower technique (scroll down to 2nd article): http://www.edn.com/contents/images/122602...
- Thu Jun 26, 2008 2:17 am
- Forum: Pro Audio Design
- Topic: Analog meter driver...
- Replies: 14
- Views: 40972
Re: Analog meter driver...
Thanks for the ideas, Wayne!
Oh, did I mention I have a single 60V rail to work with?
Oh, did I mention I have a single 60V rail to work with?
- Sun Jun 22, 2008 8:28 pm
- Forum: Pro Audio Design
- Topic: Analog meter driver...
- Replies: 14
- Views: 40972
Re: Analog meter driver...
Thanks, it might work nicely. I'll find the Neve ones to post too.
What's with dropping the V- rail? Is it only because of the 30v Vceo of the BC184?..
What's with dropping the V- rail? Is it only because of the 30v Vceo of the BC184?..
- Sun Jun 22, 2008 7:40 pm
- Forum: Pro Audio Design
- Topic: Analog meter driver...
- Replies: 14
- Views: 40972
Re: Analog meter driver...
Oh I don't know what I want, as usual. :roll: In gerneral, I was thinking a ppm would be more useful for a preamp output than a vu; especially driving DAWs. I have a couple circuits borrowed from Neve for ideas. These will give, more or less, the standard BBC scale/ballisitics. (I wonder if they are...
- Sat Jun 21, 2008 3:39 am
- Forum: Pro Audio Design
- Topic: Analog meter driver...
- Replies: 14
- Views: 40972
Re: Analog meter driver...
Yikes, I think the 20db or so before clipping would be enough for my needs - with maybe a separate led "signal present/clip" circuit on the front end. Seems like too high-performance part for this task, but the price is right...
- Tue Jun 17, 2008 1:13 am
- Forum: Pro Audio Design
- Topic: Analog meter driver...
- Replies: 14
- Views: 40972
Analog meter driver...
I need an analog meter driver for a preamp project. Meter is a linear 1ma FS unit. I was thinking of a simple peak meter driver using the 2252, something along the lines of That design note 101: http://www.thatcorp.com/datashts/dn101.pdf The threshold control would adjust the lower scale reading, an...
- Wed Jun 11, 2008 6:15 pm
- Forum: Document
- Topic: SSL 82E210 Stereo Compressor
- Replies: 2
- Views: 8915
Re: SSL 82E210 Stereo Compressor
Wow, I need to study this one! What's that chip that T9 is gating the L or R Audio into???
- Sat Sep 08, 2007 4:42 pm
- Forum: Pro Audio Design
- Topic: Dynamic Equalizer
- Replies: 4
- Views: 16745
Re: Dynamic Equalizer
Yeah, I see what your saying about the semantics. And thanks for the filter details, the one I worked out in my idiot-sevant style indeed works that way. Anything past first order does tend to comb when recombined, and adjustments are extremely interactive. I experimented a bit with a Linkquist-Rile...
- Fri Sep 07, 2007 10:05 pm
- Forum: Pro Audio Design
- Topic: Dynamic Equalizer
- Replies: 4
- Views: 16745
Re: Dynamic Equalizer
Well, this is a multi-band dynamics processor, not a dynamic equalizer, right? I'm not sure of the band-splitter here; why do the 12 dB per octave upper and lower filters feed back into the 6db per octave middle filter before the processing? I need to mull that...Is this a trick I've been missing? M...