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  • 2:43AM's Non-Scientific Compressor-Plugin Comparisons (p.2)
2018/06/18 19:13:09
ZincTrumpet
Thanks for sharing your findings 2:43AM.
I found it very interesting and it also reminded me that I have never used the Waves SSL E which I got in a deal a while back.

So I plonked it on a couple of vocal tracks I was working on today and bingo! What a great open, transparent sound and that was just using a preset and tweaking the levels. I am so impressed it might find its way into my standard template.

I will definitely pick up your other recommendations when they are in the sales.

Thanks
2018/06/18 21:22:06
abacab
Good info.  Has anybody compared the Waves Scheps Omni Channel compressor module to the other Waves compressors?  I only have the Scheps and the H-Comp.  But according to the Waves docs, Scheps is a 3-in-1 compressor setup.
 

 
2018/06/19 01:43:02
dubdisciple
I don’t really recall much fanfare about the cakewalk pro channel compressors other than ca2a and lesser extent concrete. More than anything the two bundled ones were seen as convenient but unspectacular.
2018/06/19 02:20:15
Rbh
I use the Sonitus comp quite a bit probably 60% of track inserted comps. The probably another 25% are UAD based comps for buss or master channel work. I use fab filter here and there.
 
Did you use any basic metric when comparing them all ? meaning - 4:1 ratio and metering -4db gain reduction on all comps   etc etc ? I understand you level matched them.
2018/06/19 04:37:05
2:43AM
dubdisciple
I don’t really recall much fanfare about the cakewalk pro channel compressors other than ca2a and lesser extent concrete. More than anything the two bundled ones were seen as convenient but unspectacular.

 
Agreed. CA-2A is regarded as one of the best emulations of the LA-2A. Apparently, there's some good code in that little gray GUI!  PC76 and PC4KS were convenient indeed, but rather mushy and hard to dial in, IMO.

Rbh
I use the Sonitus comp quite a bit probably 60% of track inserted comps. The probably another 25% are UAD based comps for buss or master channel work. I use fab filter here and there.
 
Did you use any basic metric when comparing them all ? meaning - 4:1 ratio and metering -4db gain reduction on all comps   etc etc ? I understand you level matched them.


I basically first ensured that silence occurred when the opposite-phased track was mixed into the master. Even if a plugin inherently added or subtracted gain, I zeroed it out by ear until silence or near-silence occurred.  Since my findings were essentially remarks on what I heard, I did level-match them with a peak-meter utility in Ableton Live as well as used Spectrum (and Voxengo Span) for confirmation of what was going on.  The analyzers were used to confirm if any harmonics were being generated, albeit loosely and not under great scrutiny.
 
On a side note, the dbx 160 comp is going to a tough sell...er, buy...for me.  Once again, I am my own worst enemy! Experimenting around, I put an instance of Alloy 2 on my kick drum track and used the multi-band transient shaper to bring up just the high-end smack of the kick.  This replicated the dbx 160 attack pretty well, with even better (and more controllable) results.  The bottom-end was better preserved using Alloy 2 vs. the dbx 160.  The kick drum had better cut but retained the punch and thud.  Something to try if you haven't dusted off Alloy 2 for awhile!
2018/06/22 18:27:07
2:43AM
So this is pretty cool. I have an old-school encoder/screen-capture software, so I hope the videos play.  Check out how various compressor plugins react to a 1kHz sine test tone.  In the videos, watch an oscilloscope, a frequency analyzer, and a level meter all at the same time!
 
http://www.efextek.com/pluginvids/Alloy2comp.avi
http://www.efextek.com/pluginvids/API2500.avi
http://www.efextek.com/pluginvids/CLA76.avi
http://www.efextek.com/pluginvids/dBx160.avi
http://www.efextek.com/pluginvids/H-Comp.avi
http://www.efextek.com/pluginvids/SSLBusComp.avi
http://www.efextek.com/pluginvids/LiveGlueComp.avi
Compressor is not visible, but I am tweaking the threshold, ratio, and attack knobs.  The generation of increased harmonics is caused by a very small attack time.
http://www.efextek.com/pluginvids/LiveComp.avi
Compressor is not visible, but I am tweaking the threshold, ratio, and attack knobs.  The generation of increased harmonics is caused by a very small attack time.
http://www.efextek.com/pluginvids/Pro-C2.avi
http://www.efextek.com/pluginvids/Ozone6CompandMaximizer.avi
http://www.efextek.com/pluginvids/Ozone5CompandMaximizer.avi
 
Maybe someone can chime in on this one, but do all compressors create some sort of harmonic distortion when compression occurs?  Is this the "coloration" term that is frequently tossed around?  Also, it's cool to see the compression taking place on the 1kHz sine wave when the attack is brought down to a small value.  It can't be seen with the naked eye, nor on the metering except for the analyzer and slightly on the Oscope, but compression is taking place with the generation of harmonics.  Wavelength of 1Khz is 1ms.  It is also worth mentioning that Alloy 2 is cleaner than I thought, and Ozone 5/6 are very clean...makes sense since they're for mastering.  Likewise, FF Pro-C2 is extremely, 100% clean and transparent when in the mastering mode. I don't use H-Comp very much anymore, but watch its vid to see how it really trashes up the audio...which I guess can be a good thing if that's what you need.  Two bonus vids star Ozone 5 and 6.  The way Ozone 6's maximizer algorithms work is particularly interesting.
2018/06/22 18:56:16
2:43AM
But wait, there's more.  Turns out that compressor lookahead makes a night and day difference in harmonic generation!  With the adjustable lookahead of FF Pro-C2, all harmonic generation is eliminated, resulting in a super clean and extremely transparent compression!  Furthermore, lookahead should be adjusted depending on the frequency content of the material.  At 1kHz, lookahead need only be 0.5ms or so.  At 60Hz, lookahead should be at least 8ms, which makes sense since 1/2 cycle at 60Hz is 8.33ms.  Down to 40Hz needed at least 13ms. Check it out!
 
http://www.efextek.com/pl...ds/Pro-C2LookAhead.avi
 
2018/06/22 20:06:42
Grem
Looked at the last video. The on with the look ahead stuff. Interesting!
 
The lower the frequency the higher the look ahead need to be to get rid of generated harmonics.
2018/06/22 21:10:22
2:43AM
Grem
Looked at the last video. The on with the look ahead stuff. Interesting!
 
The lower the frequency the higher the look ahead need to be to get rid of generated harmonics.

 
Exactly! Never knew that to be the case.  Also, most compressors either have no lookahead or a fixed lookahead.
2018/06/24 21:47:12
Grem
2:43AM
Grem
Looked at the last video. The on with the look ahead stuff. Interesting!
 
The lower the frequency the higher the look ahead need to be to get rid of generated harmonics.

 
Exactly! Never knew that to be the case.  Also, most compressors either have no lookahead or a fixed lookahead.




So their harmonics would essentially be fixed!!  Interesting indeed. When I get some time I will have to look into this. I will get to you other videos also. Thanks.
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