Thanks so much for the kind words!
The official post will happen once the web page and manual are complete.
Yes, there are some subtle, yet specific differences in harmonics with tubes and tape. But, I've found that it goes beyond even or odd, and has a little more to do with which stage in the order there is an increase in energy. This is where a lot of emu's miss the mark, since they tend to be static or only increase the same formula. The interaction of even/odd gets more different as more drive comes in. Tape generally becomes more noticeable once it goes beyond subtle harmonics, but remains pleasant for several dB's of boost. Tubes generally can maintain that 'bigger', 'rounder' thing a little more steadily, so on some material they may sound smoother. But, there is also a huge difference in interaction on different material, so you will enjoy the differences in TB+ and Tube Booster on different instruments and bus groups. And, there will be some situations where tubes aren't the right choice as well. I think the most exciting part is that now they can both be combined in subtle amounts to really partner just about any chain desired. And they can be added to individual effect chains if wanting...like.. a tube on a reverb bus, or a tube boost from a tube compressor... nice solid state mic/pre recording with subtle tube stage added. Ahhhh! so happy!
But, still have to get the 'official' public release ready and here I am calling it by name!-lol.
As far as hearing/viewing differences in harmonics, with a good analyzer you may see that in certain levels the harmonics are slightly similar in even/odd on the first/second/third order, but almost never beyond that. More so, at different dynamics they change quite a bit. But, in most analysis you are only going to see the lowest dynamic level and not all dynamic levels that are sampled, so some of the dif's aren't easy to see- only hear. A good example is a clean drum track. If rendered in tube booster, it will probably get the best results lowering by as much as -7dB, and when the drive becomes really pronounced with 1-3 instances, you will hear a common tube 'pop' or 'punch' on the downbeat transient, where tape, at this stage, will typically be more distortion-sounding.
Also comment on comparison files- mp3's do impart some of their own 'thing', but I've found generally if using 320kbps there is not a lot of change in eq or dynamics, so something that has an obvious coloration or harmonic difference should come through pretty well. But, I really like FLAC, which is supposed to be lossless. It is pretty close to lossless, but it is not universal to every user, so high quality mp3 rendered very slow works fine for me in getting the idea across.
yr wrote: vicnestE wrote:
yr wrote:I think tubes generate more even harmonics compared to tape. You can try the following: use the files Michael posted on the tube-booster page and process only the first (dry) pass with the TB+. Not a scientific test, but you should notice a difference.
But it's mp3, the encoder/decoder has some influences too.
For sure, and I don't know the THD of the tube presets etc. I also think Michael mentioned somewhere that it's difficult to compare tapes and tubes, because tape saturation seems to have more significant effect on the sound (when THD is equal).
I did use another tube simulation (x3) and compared it to the last repetition in Michael's files (3x tube booster). The results are much more similar then the sound I get trying the same with the TB+. But of course you are right- it's not a "proper" test. It would be much better if someone that has both libraries (or Michael) could provide some comparative files.