Login / Register  0 items | $0.00 New#KVRDeals
mevla
KVRian
 
643 posts since 3 Nov, 2015

Postby mevla; Sat Sep 30, 2017 4:34 pm Are any of Presswerk views having a 'vintage' feeling ?

Hello,

Is Presswerk a digital-only compressor ? Or are any aspects of it 'emulating' a more musically-oriented compressor (such as the Fairchild, without calling it by name) ?

Cheers.
yellowmix
KVRist
 
294 posts since 10 Aug, 2012

Postby yellowmix; Sat Sep 30, 2017 7:44 pm Re: Are any of Presswerk views having a 'vintage' feeling ?

All digital compressors emulate how analog compressors work to an extent. Presswerk is a one-stop shop for various compression methods and approaches from the analog realm and then some. It does have visual and patch presets aimed at the tasks certain classic compressors were used for, it does have obviously-named presets for the 1176, LA2A, Fairchild, dbx, and more (look in the "Vintage" folder).

It has many tweakable controls to make it "musical" if you know what that means in technical terms. As in feedforward or feedback detection, adjusting the RMS window, adjusting the knee, possibly using non-linear response, and M/S processing. But you can always use the presets as a starting point.

It has a fully-functioning and never-expiring demo so why don't you try it and listen for yourself? And if you need more guidance look up how the compressors you're looking at were designed. Chances are, Presswerk can be configured to do it that way.
yellowmix
KVRist
 
294 posts since 10 Aug, 2012

Postby yellowmix; Sat Sep 30, 2017 7:59 pm Re: Are any of Presswerk views having a 'vintage' feeling ?

Forgot to mention, for the specific view, look at the MS Compressor presets under View Presets.
mevla
KVRian
 
643 posts since 3 Nov, 2015

Postby mevla; Sun Oct 01, 2017 12:57 pm Re: Are any of Presswerk views having a 'vintage' feeling ?

Thanks. I have Presswerk and I use it - in a pedestrian way so far. See the pieces in the signature below or the one posted here in 'A piece propulsed by Bazille bass'.

I'm following a course on mixing where a point is made in the results obtained with vintage and digital compressors. By vintage, emulations are understood like the ones by UA, of well-known hardware compressors. Musicality would mean first the quality of the sound as needed by a song and then, the rhythm of the relase according to the BPM, as well as the attack value shaping the envelope of an instrument. The quality would be the distortion that acompressor can bring in the form of harmonics. This is where the emulations of known hardware comes into play, and the way they were designed, with tubes, using FETs, etc... I reckon that people designing such software compressors pay attention to the characteristics of the hardware. For OvertoneDSP for instance they have one or two guys from SSL on board.

In this context I'm looking back at Presswerk and was wondering if any analog circuits were emulated, perhaps indirectly. The user guide does not mention anything, I think, about hardware emulation or characteristcs.
yellowmix
KVRist
 
294 posts since 10 Aug, 2012

Postby yellowmix; Sun Oct 01, 2017 5:30 pm Re: Are any of Presswerk views having a 'vintage' feeling ?

You mention digital compressors where they measured/simulated analog devices and recreated it in the emulation through a variety of means even if that meant fudging numbers or SPICE. If you really want the exact behavior of a specific compressor then yes, that would, in theory, get you closest to it. But like I said, things like detection time doesn't matter how you get there, so calling it "emulation" isn't accurate; it's the fundamental way a compressor works. So you have to look at things like how the signal was attenuated or amplified, which Presswerk addresses here:

The NonLin control helps simulate the behaviour of specific compressors or gain-reduction circuits.


And the detection method impacts detection speed/envelope:

RMS Window greater than 10 ms can be used to emulate the lag of opto-electronic compression units, and can help treat difficult material such as vocals or piano as naturally as possible.


And from the Saturation section:

It’s actually quite easy to mimic the distortion behaviour of the FET-based voltage dividers found in popular studio gear of the late 1960s.


So if you look up how a specific compressor works, you can dial in the appropriate settings in Presswerk and mimic the behavior. But it's not intentionally emulating any specific compressor. Since you're studying compressors this is a really good opportunity to understand the components of a compressor and how they arrive at certain results. The direct emulations aren't exposing these parameters to you.

For example, this article discusses the Fairchild 670: https://recording.org/threads/fairchild ... rks.58168/

Let's load up Preset > View Presets > MS Glue, then hit "Main View" on the top left.

From the article:

The FAIRCHILD MODEL 670 incorporates two independent limiters on one chassis, which can limit either two independent signals, such as the left and right channels of a stereo signal, or the vertical and lateral components of the same.


In the preset, look at how the M/S processing is enabled, and compare the settings on the two channels.

Each half of the MODEL 670 uses only a single push-pull stage of audio amplification and an extremely high control voltage, with the result that the Automatic Gain-Controlled Amplifier never produces any audible or observable thumps.


This means feedback detection, which is replicated in the preset. The ratios are relatively low, as well, at 1.47 and 2.0.

The attack time of the unit is made extremely fast in order to catch short transients, and the release time is made adjustable from 0.3 seconds to 25 seconds in six steps.


Attack is set to 1.6 and 5.0ms, and Release is set to 550ms but you're supposed to adjust that to suit your material.

You'll also notice the preset has some nonlinearity engaged (10.00) with a bit of soft knee, and saturation is also employed. That brings the preset the rest of the way.

So if the fact that Presswerk can get you the same results as vintage hardware means it's an "emulation" or not depends on your definition of the word.
mevla
KVRian
 
643 posts since 3 Nov, 2015

Postby mevla; Fri Oct 06, 2017 2:46 pm Re: Are any of Presswerk views having a 'vintage' feeling ?

Hi, just a quick reply to thank you for the details. I will try this soon.

Moderator: u-he Mods

Return to u-he