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Thursday, June 7th 2012, 10:00pm
It would be good if the soft clip could be turned on and off. With soft clip always on, it's seems impossible to accurately profile a tube DI, or a Neve 1073 for instance, without the KPA adding its own soft clipping effect. To be able to profile the character of such devices would be rather nice.Well, one thing I've been keeping an ear out for is the "always on" soft clipper that CK mentioned to me at one point. There really isn't a perfect level of cleanliness to be had supposedly even [if] your rig is the profile of a straight wire.
-djh
The soft clipping is only taking effect in the last 6 db of the digital headroom. The rest is linear. This is a common technic, as you probably know.
Friday, June 8th 2012, 1:14am
CK, that is interesting, because when I turned off everything (amp, eq, and cab), the distortion stomps seem very pure and almost totally free of aliasing by themself, and yet you say that "In 1.09 they have the same quality as the amp itself"--so if that's true, then shouldn't the amp be as aliasing-free as the distortion stomp? And, do you believe that you can overcome the amp aliasing in firmware eventually?As I have announced earlier in another thread, we have addressed aliasing problems for the distortion stomps. In 1.09 they have the same quality as the amp itself. Before 1.09 there were no changes.
A system reset will not have an effect.
This post has been edited 1 times, last edit by "miles" (Jun 8th 2012, 1:23am)
Friday, June 8th 2012, 3:31am
I have noticed the aliasing in the higher note register with nearly the entire range of gain in the KPA, from low to high from any profile, by any author. I have been profiling for the last several days, and when I A/B my source amp and KPA profile, it's very evident. Even if the aliasing is not jumping out at you, it kind of floats around in the background, almost subliminally.It's dependent in the gain. The amp allows much more gain than the stomps, and more gain than most tube amps. Where is your gain set to?
I imagine that the sine sweep test by dhodgson would have likely demonstrated the noise with almost any amount of gain.
Friday, June 8th 2012, 4:17am
I have noticed the aliasing in the higher note register with nearly the entire range of gain in the KPA, from low to high from any profile, by any author. I have been profiling for the last several days, and when I A/B my source amp and KPA profile, it's very evident. Even if the aliasing is not jumping out at you, it kind of floats around in the background, almost subliminally.It's dependent in the gain. The amp allows much more gain than the stomps, and more gain than most tube amps. Where is your gain set to?
I imagine that the sine sweep test by dhodgson would have likely demonstrated the noise with almost any amount of gain.
No, by physics the distortion aliasing level is a function of gain.
Hodgsons sine sweeps were high gain only.
I can easily create noticable aliasing on many modelers with sine sweeps.
Some stated to hear aliasing with clean guitar sounds. Yet to be demonstrated.
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