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x0x:vcfmods [2008/05/20 03:09] subatomic |
x0x:vcfmods [2016/01/28 18:05] (current) |
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Perhaps this page could be split out into a grouping of pages soon. | Perhaps this page could be split out into a grouping of pages soon. | ||
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UPDATE: It is a good idea to buffer the waveform output. Use a 0.1uF ceramic cap after the 100K resistor. The Mod works great and is especially good at high resonance levels, so make sure you include the Resonance Boost Mod also! | UPDATE: It is a good idea to buffer the waveform output. Use a 0.1uF ceramic cap after the 100K resistor. The Mod works great and is especially good at high resonance levels, so make sure you include the Resonance Boost Mod also! | ||
+ | UPDATE2 (by [[http://www.ladyada.net/forums/profile.php?mode=viewprofile&u=103|subatomic]]): that may be true (that 0.1uF being a good idea) however it doesn't sound as good... | ||
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==== Increased Filter Low End ==== | ==== Increased Filter Low End ==== | ||
According to RobbinWhittle, all you have to do is short out R47 (10K ohm resistor) by a length of insulated wire. Some other x0xers tried it out, and found that mounting a 4.7K ParallelResistor along with R47 works better (giving 3197 ohms resistance). This will also affect cutoff range to a degree. | According to RobbinWhittle, all you have to do is short out R47 (10K ohm resistor) by a length of insulated wire. Some other x0xers tried it out, and found that mounting a 4.7K ParallelResistor along with R47 works better (giving 3197 ohms resistance). This will also affect cutoff range to a degree. | ||
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**Extra results:** | **Extra results:** | ||
- | [[http://forums.ladyada.net/viewtopic.php?t=5215|Momerath says in this post]] that he had good luck using **r46 = jumper / r97 = 8.2k** , and that "6.8k [for r97] was ridiculous if i recall". | + | [[http://forums.ladyada.net/viewtopic.php?t=5215|Momerath says in this post]] "here are my suggestions for making a x0xb0x sound just like a 303" **r46 = jumper / r97 = 8.2k**. Presumably he added this as default (always on) on his box... Also he says "6.8k [for r97] was ridiculous if i recall". |
[[http://forums.ladyada.net/viewtopic.php?t=5215&postdays=0&postorder=asc&start=15|charlie_says confirms it's good]] and says "you tend to get self resonance at the (very) top end but, I don't seem to have lost anything that I had before, and some combinations are definitely fuller. " and "but overall I think it's worth doing." | [[http://forums.ladyada.net/viewtopic.php?t=5215&postdays=0&postorder=asc&start=15|charlie_says confirms it's good]] and says "you tend to get self resonance at the (very) top end but, I don't seem to have lost anything that I had before, and some combinations are definitely fuller. " and "but overall I think it's worth doing." | ||
- | Subatomic tried mome's mod, and found that it can be a bit whistly, but good, I went with a pot though so I could tweak. To explain r46... it seems to add more squelch on the accent, it's kinda subtle, but I could notice it most when the cutoff was way down it seemed to let through more resonant "scream" (sounds like "wow")... | + | [[http://www.ladyada.net/forums/profile.php?mode=viewprofile&u=103|Subatomic]] tried mome's mod, and found that it can be a bit whistly, but good, I went with a pot though so I could tweak. To explain Mome's use of shorting out r46... It's the |
+ | [[http://www.ladyada.net/wiki/x0x/envelopemods#increase_accent_range|"Resonance Increase Accent Range Mod"]] it seems to add more squelch on the accent, it's kinda subtle, but I could notice it most when the cutoff was way down it seemed to let through more resonant "scream" (sounds like "wow")... | ||
==== VCF External In ==== | ==== VCF External In ==== |