Eric Beam
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Pro Channel Softube saturation & stock Tube saturation analyzed.
Sonar X1 Pro Channel Softube saturation & stock Tube saturation analyzed. For those of you wondering how the Softube saturation differs from the stock Sonar X1 tube model, this will go over the differences. This shows the harmonic plot of the Softube saturation driven to 3% THD+N. The harmonics after the 1st 1k tone are the added harmonics by Softube Sat. 
The harmonic plot of the Softube saturation driven to 0.5% THD+N.  Softube created realistic model of an analog saturation stage.
The harmonic plot of the stock PC Tube saturation driven to 3% THD+N. Notice the lack of even order harmonics. 
Stock PC Tube saturation driven to 0.5% THD+N. 
This shows the level of Softube distortion added based on frequency when set to “neutral mode” driven to 3% THD+N 
The level of Softube distortion added based on frequency when set to “Keep low mode” driven to 3% THD+N. Notice the level of harmonics lowers for low frequencies. 
The level of Softube distortion added based on frequency when set to “Keep High mode” driven to 3% THD+N. Notice the level of harmonics lowers for high frequencies. 
The level of the PC Tube distortion added based on frequency when set to “Type I” driven to 3% THD+N. 
The level of the PC Tube distortion added based on frequency when set to “Type II” driven to 3% THD+N. Notice the level of harmonics lowers for high frequencies.  All in all the Softube is a more accurate emulation. But thats not to say that some might like the sound of the dominate odd harmonics of the PC tube on some sources.
post edited by Eric Beam - October 09, 11 1:16 AM
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Eric Beam
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 0:46 PM
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 8:22 AM
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Stone House Studios
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 9:31 AM
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mike_mccue
I don't get it.
Perhaps your avatar suggests that the wrong part of you got expanded!  Brian
Core i7-6700@3.40Ghz Windows 10x64 16 GB RAM Sonar Platinum/Studio One PreSonus Studio 192
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stevec
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 11:27 AM
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Nice one!
So it looks like PC Tube Type II resembles the Softube's "Keep High" mode, except that it's not based on even harmonics like Softube. Good information overall which could help in choosing which saturation to use, or at least which to try first and what to listen for...
SteveC https://soundcloud.com/steve-cocchi http://www.soundclick.com/bands/pagemusic.cfm?bandID=39163 SONAR Platinum x64, Intel Q9300 (2.5Ghz), Asus P5N-D, Win7 x64 SP1, 8GB RAM, 1TB internal + ESATA + USB Backup HDDs, ATI Radeon HD5450 1GB RAM + dual ViewSonic VA2431wm Monitors; Focusrite 18i6 (ASIO); Komplete 9, Melodyne Studio 4, Ozone 7 Advanced, Rapture Pro, GPO5, Valhalla Plate, MJUC comp, MDynamic EQ, lots of other freebie VST plugins, synths and Kontakt libraries
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pwal
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 12:05 AM
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Razorwit
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 12:31 AM
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Hi Eric, It may just be that I'm super nerdy, but I think that is a really cool analysis. Incidentally, just for comparison to the hardware being modelled, here is a frequency chart of a (roughly) 1k sine wave first by itself:  And then driven pretty hard through a tube pre (Sebatron vmp-4000e):  Showing the same kind of even and odd harmonics as the softube. Exactly what we expected, but still fun to actually produce. BTW, what app did you use to produce your results? Again, might be my inner nerd coming out but I kinda want it.... Nice work again and thanks! Dean
Intel Core i7; 32GB RAM; Win10 Pro x64;RME HDSPe MADI FX; Orion 32 and Lynx Aurora 16; Mics and other stuff...
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pwal
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 12:55 AM
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 12:57 AM
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Has anyone tried with a triad?
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Jonbouy
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 2:02 PM
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With saturation in a production context I'd rather set equal RMS levels and use my ears to make a comparison. http://varietyofsound.wor...-facts-about-aliasing/ If I was developing a plugin the charts/plots would be necessary. It is interesting to see that they do actually behave differently though, so thanks for those.
post edited by Jonbouy - October 09, 11 2:12 PM
"We can't do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves" - Banksy
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Keni
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 3:38 PM
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Thanks Eric...
It's always nice to know the real data...
..and as you say, this doesn't make one good and the other bad, but I can now understand the differences my ears are hearing much better...
Keni
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Eric Beam
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Re:Pro Channel Softube saturation & stock Tube saturation analyzed.
October 09, 11 6:05 PM
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"BTW, what app did you use to produce your results? Again, might be my inner nerd coming out but I kinda want it..." It's a hardware analyzer (Prism dScope III). I'm an audio engineer by day, it's a must have tool for designing/troubleshooting. It's a tool geared "price wise" towards a company. I would recommend Rightmark audio analyzer & a good audio interface as an alternative.
post edited by Eric Beam - October 09, 11 6:17 PM
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