Please note that this is more of a curiosity, not an obsession and my parenthesis sounds great but different and I just wanted to see if I could figure out what that difference was.
So I built my parentheses a while back and it seems to work fine, but I got curious and I hooked them both up to an A/B loop and checked them. Their were two differences that I noticed. One was that the distortion tone was definitely off by a little bit, and the other is that potentiometer on the Octave is way off but maybe in a cool way. I am not sure yet. Once I noticed these issues, I ended taking the pedals to my computer and running a sine wave from my MicroFreak through the pedals and looking at the waveforms with the Melda Oscilloscope plugin.
They both produce almost an identical waveform off the sine wave, but the lifepedal clearly has a shorter pulsewidth. I think it is something like 20% shorter then the parentheses. This makes them sound just a little bit different. This difference is present in all three clipping modes for both pedals. Any ideas on how one could make the pulsewidth shorter to make it a closer match to the original?
For the octave, I noticed if I turned the octave up on both pedals it was completely different. eventually I found that if I dial back the octave on the parentheses to about 9-10 o'clock the effect would be identical (besides the afore mentioned pulsewidth on the distortion). Anything after 1/3rd I realized that the original signal was actually disappearing until it is completely gone at 100%. Oddly enough the octave seems to be behaving as wet/dry knob with the ability to go full wet. Is this a feature of the parentheses? Or is this a bug? I really can't tell. I used the Russian diodes and I got a good matched pair I believe. Maybe I used the wrong value of potentiometer, I have not checked because I would have to take the whole thing apart to see the value printed on it and frankly, I have not decided whether I want to this this. Has anyone run into something like this? Any thoughts on what might be going on here?
So I built my parentheses a while back and it seems to work fine, but I got curious and I hooked them both up to an A/B loop and checked them. Their were two differences that I noticed. One was that the distortion tone was definitely off by a little bit, and the other is that potentiometer on the Octave is way off but maybe in a cool way. I am not sure yet. Once I noticed these issues, I ended taking the pedals to my computer and running a sine wave from my MicroFreak through the pedals and looking at the waveforms with the Melda Oscilloscope plugin.
They both produce almost an identical waveform off the sine wave, but the lifepedal clearly has a shorter pulsewidth. I think it is something like 20% shorter then the parentheses. This makes them sound just a little bit different. This difference is present in all three clipping modes for both pedals. Any ideas on how one could make the pulsewidth shorter to make it a closer match to the original?
For the octave, I noticed if I turned the octave up on both pedals it was completely different. eventually I found that if I dial back the octave on the parentheses to about 9-10 o'clock the effect would be identical (besides the afore mentioned pulsewidth on the distortion). Anything after 1/3rd I realized that the original signal was actually disappearing until it is completely gone at 100%. Oddly enough the octave seems to be behaving as wet/dry knob with the ability to go full wet. Is this a feature of the parentheses? Or is this a bug? I really can't tell. I used the Russian diodes and I got a good matched pair I believe. Maybe I used the wrong value of potentiometer, I have not checked because I would have to take the whole thing apart to see the value printed on it and frankly, I have not decided whether I want to this this. Has anyone run into something like this? Any thoughts on what might be going on here?
