search

olegkapitonov / tubeAmp-Designer

Standalone software guitar processor, editor of *.tapf profile files for tubeAmp (KPP) and guitar amp profiler.
GNU General Public License v3.0
34 stars 8 forks source link

No sound with new profile #4

Open lobneroO opened 3 years ago

lobneroO commented 3 years ago

I have downloaded the tubeAmp-Designer for Windows (using Windows 10) and the KPP-VST3-Win64.zip to try and profile one of my software amps. The amp does not run in Linux and I don't have any macOS device to check there.

The profiling worked more or less, I got a profile file out of it anyway (see attachment). However, when I load that in Reaper into the kpp_tubeamp, I don't get any sound (no quiet sound or noise, just none at all). The profiles that ship with kpp_tubeamp work fine however, so I assume something is off with the profile. When using the Play button in the designer, there is sound and it sounds reasonably close to what I'd expect from my amp.

I will also attach the test signal response for reference (which is recorded without any IR after the amp!).

While this is a 5150 sim (and therefore High Gain Metal), I used the "Classic (Without Master Gain)" setting (apperantly I was too lazy to read that beforehand...). However, since I did get a profile out of it, I assumed it would work anyway.

customprofile.zip

lobneroO commented 3 years ago

I tried the profile under Arch now (also in Reaper), and I have the same problem. It does not produce sound.

lobneroO commented 3 years ago

In Arch, I loaded the tubeAmp-Designer and copied similar audio files (just with full gain instead of ~7/10) as the input. I used the Master Gain setting now. I still got an error message to reduce the gain by ~4dB, but it created a profile regardless. This one seems to work.

When creating this new profile, I noticed it loaded despite the error message. I did not notice that in my first attempt on Windows (and I am not sure if it did). But because I didn't notice in Windows, I have loaded an audio file several times to analyze without restarting. I cannot say if that was the problem leading to the not working profile. With my new profile I also didn't specify any IR in tubeAmp-designer. I did so with the old profile, so that may also be the source of the error.

olegkapitonov commented 3 years ago

Hi @lobneroO!

Thank you for reporting this!

Your profile looks and sounds normal in tubeAmp Designer, but in tubeAmp plugin something weird happening. I tested this under Arch + Ardour + LV2 tubeAmp.

I have sound in tubeAmp but only in the right channel and it is definetly broken.

Your gain level is too high so the deconvelver generated wrong IR in your profile. Impulse response part of the test file is definetly overloaded, I see this in Audacity.

So, broken profile is not definetly a bug here, but this is very strange that in tubeAmp Designer all souds good.

lobneroO commented 3 years ago

In that case, a warning of a problematic profile when exporting (or when importing later on in the amp VST) might be a good idea? I'm not sure how easily detectable this would be, I have not (yet) dabbled in amp simulation, let alone profiling real amps (and so far I couldn't find great resources on this either).