RadicalAns Posted October 7, 2004 Report Share Posted October 7, 2004 I just got my SID working and I noticed that when I hit a note there is a sort of aftersound. It sounds like the last note I played only softer. Anybody know what this is and/or how to fix it?ThanksDave Quote Link to comment Share on other sites More sharing options...
illogik Posted October 7, 2004 Report Share Posted October 7, 2004 the sound is quite a bit softer but still noticable? I think that is one of the sids "bugs"; allthough i can live with this aftersound, i guess you could build/buy a (noise)gate, this will turn down the volume completely (of the sid, or whatever you feed through the gate) if the volume goes under a predefined threshold. cheers \marcel Quote Link to comment Share on other sites More sharing options...
goyousalukis Posted October 7, 2004 Report Share Posted October 7, 2004 Yes, unless this is really loud, then it is normal. It is especially noticable on the wavetable sounds, because the wavetable keeps going and going....Justin Quote Link to comment Share on other sites More sharing options...
RadicalAns Posted October 7, 2004 Author Report Share Posted October 7, 2004 It seems a little loud to me but I may just have my speakers turned up too loud.. i dunno.You can here a sample here Quote Link to comment Share on other sites More sharing options...
illogik Posted October 7, 2004 Report Share Posted October 7, 2004 yep, thats normal allright., i can understand that you don't like the (after)sound but when you are making music together with other sounds/machines, the aftersound isn't (that) noticable. If you find it still irritating you will have to use a (noise)gate or something similar.cheers,marcel Quote Link to comment Share on other sites More sharing options...
Jurbo Posted October 7, 2004 Report Share Posted October 7, 2004 Please correct me if I'm wrong, but the aftersound is a bug of the older 6581 type SID chip. If it really bothers you, you could change to the newer 8580 type chip, that doesn't have the bug/effect (but the overall sound will be a bit different, too...). Quote Link to comment Share on other sites More sharing options...
illogik Posted October 7, 2004 Report Share Posted October 7, 2004 Please correct me if I'm wrong, but the aftersound is a bug of the older 6581 type SID chip.i think thats right, the later SID is a bit more "static" (cleaner) or so i've heard. depends on what you want; i like the little fluctuations in the sound of the good old 6581 (sounds "alive"). cheerz,m4rc31 Quote Link to comment Share on other sites More sharing options...
RadicalAns Posted October 7, 2004 Author Report Share Posted October 7, 2004 Thanks for the info. I think I might try running it through a noise gate. Anyone know where I can get one cheap, possibly DIY? Quote Link to comment Share on other sites More sharing options...
pay_c Posted October 8, 2004 Report Share Posted October 8, 2004 The bug is downsized in the 8580, but not gone. It´s still there, if you push the volume you still hear it. The SNR (signal to noise ratio) is just better.Anyhow: At first I didn´t like it, too. But with the time I realized it brings in some interesting "analog" type of background sound (which you don´t really hear anyhow). At first I killed it with noisegates, too. But with the time I threw the noisegates out again and just muted the track within passages where everything had to be turned off. It´s bringing in some (you might kill me for that word) "natural" behaviour of the sound.Like alyways: Try it with, try it without and *then* do decide. ;)Greetz! Quote Link to comment Share on other sites More sharing options...
RadicalAns Posted October 8, 2004 Author Report Share Posted October 8, 2004 what I think I'm gonna do is add a switch to turn the noise gate on and off. That way i can go either way. Since I plan on using my SID with my band at live shows, it might be good to be able to get rid of the hum at the flick of a switch, and if I want it just switch it right back. Quote Link to comment Share on other sites More sharing options...
goyousalukis Posted October 8, 2004 Report Share Posted October 8, 2004 Thanks for the info. I think I might try running it through a noise gate. Anyone know where I can get one cheap, possibly DIY?Here is a schematic:http://www.tonepad.com/project.asp?id=18this one looks easyhere's the mouser partslisthttp://www.lucyjordan.com/interest/noisegate.htmJustin Quote Link to comment Share on other sites More sharing options...
RadicalAns Posted October 11, 2004 Author Report Share Posted October 11, 2004 Here is a schematic:http://www.tonepad.com/project.asp?id=18this one looks easyhere's the mouser partslisthttp://www.lucyjordan.com/interest/noisegate.htmJustinI just found that myself the other day. They've got alot of cool projects on that page. I may build one of the phaser pedals on there and maybe make a distrotion box for my guitar. Thanks for the partslist it'll be a big help. ROCK \m/ Quote Link to comment Share on other sites More sharing options...
Sephult Posted October 12, 2004 Report Share Posted October 12, 2004 You could probably replace some pots with digital pots so that your guitar pedals can be midi controllable.... Or maybe build a midi controlled gate for the sid aftersound problem ;D-S Quote Link to comment Share on other sites More sharing options...
RadicalAns Posted October 12, 2004 Author Report Share Posted October 12, 2004 How would I go about doing that? Rotary Encoders? I was thinking of adding a phaser from tonepad too so that'd be pretty sweet.~Dave Quote Link to comment Share on other sites More sharing options...
moebius Posted October 12, 2004 Report Share Posted October 12, 2004 Digital pots - digitally controlled resistor IC's..And I wouldn't do that - Captain Hastings from the forum, reported a bad noise problems on a design with a digipot (Hmm.. and what was the gain factor of a BigMuff again.. ;))The Ross phaser is a OTA based - Just droping the LFO section there and inserting control current thru resistor instead of a original LFO.. Instant SID mod matrix phasing fun ;)Bye, Moebius Quote Link to comment Share on other sites More sharing options...
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