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Merry Scratchmas!
Posted: Tue Dec 15, 2015 5:09 pm
by mccy
https://www.youtube.com/watch?v=YQ95...ature=youtu.bewww.derknott.de/scratchmas.zipMy Christmaspresent for all!
It's a free VST scratcher (tested in Reaper 32bit)and a standalone scratch EXE.
Martin
Re: Merry Scratchmas!
Posted: Tue Dec 15, 2015 10:02 pm
by martinvicanek
Cool device, Martin!
I like the inertia of the slider response, well done!
One thing I noticed is that zipper noise that sounds like there is dust on the pickup. I mention this because I encountered a similar phenomenon with my own scrating creation. First I thought linear interpolation was not good enough so I tried higher order, however the noise persisted. I finally tracked it down: it was a numerical issue, the result of adding to a large number (the song position) a small number (the scratching back and forth modulation). The effect was a lack of resolution, making the read index advance in audible steps, hence the zipper noise. I wonder if this could be the case with your schematic, too?
Re: Merry Scratchmas!
Posted: Wed Dec 16, 2015 6:51 pm
by mccy
Martin, thanks, I bet yes, but I have no idea how to solve it - I allways built with just trial & error and a bit luck. The noizes were the reason why I added the filter which depends on the slider speed, but that's just a workaround, I guess. I added lots of dezipping, but without success...
Martin
Re: Merry Scratchmas!
Posted: Wed Dec 16, 2015 11:16 pm
by martinvicanek
Wanna post your schematic?
Re: Merry Scratchmas!
Posted: Sat Dec 19, 2015 7:04 pm
by mccy
viewtopic.php?f=3&t=3746&p=20527&hilit=scratch#p20527this is an early version... it will take some time to upload the final version...