cheater Posted November 2, 2006 Report Share Posted November 2, 2006 I really wish for a sidechain compressor for compressing the bass synths, triggered by the kick/whatever (alternate from any compression of the drums themselves)Some ideas for common FX:chorus/phaser for snares and other highschorus for kickoverdrive for different kinda stuffPerhaps a routing matrix (like on the MB SID?) would be a good idea, with the routing destinations just being "general outputs" into which you could plug all kinds of FX boards. Like a modular drum machine.Perhaps the same could with routing sources: the routing matrix could have inputs into which you could plug voiceboards. Want 20 kick drums? no problem.. Want just Kick+snare+HH? no problem.. :DThis routing matrix stuff would have to be realized in a way which allows x voices and y sends, where x and y are any number from 1 to 1000Actually you are correct, the LM31600 is two CA3094's on one chip. The CA3094 is a CA3080 followed by a darlington buffer, I don't know what I was thinking. What were you thinking?? ;D Quote Link to comment Share on other sites More sharing options...
Jaicen Posted November 2, 2006 Report Share Posted November 2, 2006 What were you thinking?? ;DActually I was thinking of all the times i've cursed the manufacturers for discontinuing a vital part! Quote Link to comment Share on other sites More sharing options...
toxictv101 Posted November 2, 2006 Report Share Posted November 2, 2006 ive my 4 voice808 (bd,sn,ma,clp)now finishedno one part was hard to find for me, i ve put the same transistor everywhere (npn,pnp ofcourse)and its sound good.ive just notice that all the hallucinogen modsare not working perfectly , because some pots dont work on 100% some one are only active during 15% of the rotation.would be maby great to redrawn all the schematicsand make it tcheked by some one That know wellThe "TWIN-T filter :) Quote Link to comment Share on other sites More sharing options...
Jaicen Posted November 3, 2006 Report Share Posted November 3, 2006 Sounds to me like you're using LOG pots where there should be LINEAR, or vice Versa. Most of the mods are simply replacing a fixed resistor with a variable resistance, so it's pretty straightforward. Check the markings on your pots, A = LOG and B=LIN. Quote Link to comment Share on other sites More sharing options...
Sebo Posted November 3, 2006 Report Share Posted November 3, 2006 Hi toxictv101:Great to hear the modules are working.What transistors do you use, the originals 2SA733, 2SC945 or theHalucinogen replacements (BC640, BC639)?And what Op Amps?Thanks Quote Link to comment Share on other sites More sharing options...
toxictv101 Posted November 3, 2006 Report Share Posted November 3, 2006 What transistors do you use, the originals 2SA733, 2SC945 or theHalucinogen replacements (BC640, BC639)?And what Op Amps?Thankshi seboi used bc639/640 ((also for noise part)) and tl072 for opampeverything work wellbut i want to remake one my self and drawn everythingand put all the pot on the board with voice because its so boring to solder all wire between pot and ci. >:( more than 200wire :o :'( (""i hate do that""))i gona make one board with all voice on it And a second board with seq,ctrl,... Quote Link to comment Share on other sites More sharing options...
stryd_one Posted November 3, 2006 Report Share Posted November 3, 2006 i gona make one board with all voice on it And a second board with seq,ctrl,... ;D Nice one dude! I hope there's a chance of me buying a voice board .. Where's that begging smiley ;) Quote Link to comment Share on other sites More sharing options...
toxictv101 Posted November 4, 2006 Report Share Posted November 4, 2006 Just to say that the sound is simply exactly the same as the RolandTr808it s a dream that become truemy Cick/snare modul sound Crazy ;D ;D ;D :P Quote Link to comment Share on other sites More sharing options...
stryd_one Posted November 4, 2006 Report Share Posted November 4, 2006 gimmegimmegimmegimme ;) ;DNo seriously thoughgimmehahah Quote Link to comment Share on other sites More sharing options...
cheater Posted November 5, 2006 Report Share Posted November 5, 2006 So, guys, what are your favourite FX for drums?Let's list some....Some analog ones:I think autofilters are really nice!Very useful for breakbeats.Chorus for the kick...Of course compressors, tubes...Noise gates and ducking comps...Some filters that are easy to realize digitally:Bit crushers!Crappy compressors that make your sound really grittyWaveshapersCheapo digital filters for that lo-fi soundDelays (needs ram :( )Crappy sounding digital chorus Quote Link to comment Share on other sites More sharing options...
stryd_one Posted November 6, 2006 Report Share Posted November 6, 2006 Hmmm... Don't know about the autofilter (I'll leave the motion in my breaks to my programming ;) ) and the noisegates and compression are more of a mix thing than an instrument thing (VCAs take care of it there), but chorus and bitcrushers and waveshapers and overdrive and distortion and saturation of any kind and combfilters and ringmod and vocoders and other FM and AM toys are all good for changing the timbre of the instruments.... and a drum machine without big long dubby delay strapped to it is hardly worth looking at! hehehehe Quote Link to comment Share on other sites More sharing options...
moogah Posted November 7, 2006 Author Report Share Posted November 7, 2006 Ran out of stuff to do until the last few parts arrive tonight, so I decided to break in the new office camera (Cannon EOS digital! Woo Hoo!) and get some better pictures of what my workbench looks like. Took about 20 pics, but flickr will only let me upload 6 at a time, so here you can see come detail shots of the PCB'shttp://www.flickr.com/photos/66658750@N00/ Quote Link to comment Share on other sites More sharing options...
toxictv101 Posted November 7, 2006 Report Share Posted November 7, 2006 cool pcb!!how much do u pay for one board ??? Quote Link to comment Share on other sites More sharing options...
stryd_one Posted November 7, 2006 Report Share Posted November 7, 2006 Nice! Quote Link to comment Share on other sites More sharing options...
Twin-X Posted November 7, 2006 Report Share Posted November 7, 2006 Nice!! What eos did you buy? I got an 30d myself Quote Link to comment Share on other sites More sharing options...
cheater Posted November 7, 2006 Report Share Posted November 7, 2006 Wow... that's a lot of pots... :o Quote Link to comment Share on other sites More sharing options...
moogah Posted November 7, 2006 Author Report Share Posted November 7, 2006 cool pcb!!how much do u pay for one board ???The barebones board was something like 120$, and if the estimates for the final PCB from 4pcb.com are correct each PCB will be < $100 each in quantities of 10.Wow... that's a lot of pots... Got three more trays off camera ;) I'll prolly order another 3 trays too ;D It's a shame they don't have 10k Linear available, the mounting legs are smaller than your normal pot and are spaced to snap into regular stripboard, they would make nice parts for people using AIN boards for their midiboxes.Nice!! What eos did you buy? I got an 30d myselfI wish it were mine, I'm borrowing it from the office (nice perk of being a techy :)) It's a Rebel XT digital, with the 400$ lense. Good stuff! Quote Link to comment Share on other sites More sharing options...
Sebo Posted November 7, 2006 Report Share Posted November 7, 2006 Hey Moogah, Great Job !!!!Do the sequencer will output MIDI??And will have velocity or only accent?Sebo Quote Link to comment Share on other sites More sharing options...
Jaicen Posted November 7, 2006 Report Share Posted November 7, 2006 Looks very Tasty I would say! How big are those PCB's? It looks to me like there's a whole lot of real estate going begging on that thing! I guess that explains the price?? Quote Link to comment Share on other sites More sharing options...
moogah Posted November 7, 2006 Author Report Share Posted November 7, 2006 Hey Moogah, Great Job !!!!Do the sequencer will output MIDI??And will have velocity or only accent?SeboYes, MIDI-wise the SEQ works just like the regular app. Internally there will only be accent tho, there just isn't enough PCB space to fit the AOUT circuitry. How big are those PCB's? It looks to me like there's a whole lot of real estate going begging on that thing!I guess that explains the price??11"x16" (not sure what that is in metric ???) And if it looks like there is space to spare on the board I assure you it is an illusion! ;D It was a bit of trouble to cram it all in as it was, notice however that along one side there is space for 6 pots and 3 switches to control the fx board or for DIY mods to the circuits. Quote Link to comment Share on other sites More sharing options...
Jaicen Posted November 8, 2006 Report Share Posted November 8, 2006 First off, can I say that I very much do not want to rain on your parade! I think the work you've done so far with the 808 clone is excellent , particularly for someone with little experience of electronics. I do however have a few issues that i'd like to mention. I can see where you're coming from with regards to the space issue, but in my view the boards are much taller than they really need to be. The reason for this is obvious, but I'd prefer to have just a single board for just the voices, and a seperate board holding the sequencer and MIDI interface. That way, you avoid the wasted space, and the boards can be much more compact. Also, I think that the lack of velocity for the accent is a severe handicap. For my clone, I plan to have both the accent, and certain parameters of the voices under velocity control. For example, the snare will not only get louder, but the snappy level will increase as the velocity increases. Is it possible using your version of the seq to add the jumpers to permit the use of an external AOUT board?? Other than that, i'd say your board is a fine piece of work (even with the components on the wrong side ;) EDIT: I thought it prudent to mention that although the boards are really really big in my view (about the size of a real 808 actually!), a price point of around $100 puts it in the region of the 9090 clone boards, so that's not bad at all. If you could gather enough interest to get a better price break it would be a tempting propsition all-round. Quote Link to comment Share on other sites More sharing options...
Twin-X Posted November 8, 2006 Report Share Posted November 8, 2006 In my view the board looks like it is supposed to be.1 big size that fits niceley in a housing without getting all that messy with wires and still have the hands on for control.If you are cloning you are cloning. He is not creating a new drum machine.So moogah i want that thing as it is now do not change much i like it.But jaicen gots a point about those jumpers. This way you give a bit of freedom to those whom wish to tweak. Quote Link to comment Share on other sites More sharing options...
Jaicen Posted November 8, 2006 Report Share Posted November 8, 2006 Exactly! I think I suffer from the 'add as many features as possible' mind-set. In actual fact, Moogah's clone is about 6" shorter than an original 808 which tops out at 20"x11"!As I added in my edit, I actually think that if the price could be brought down enough, it would be a very good option for people that want a real 808 clone with the minimum of fuss. I don't actually want all the voices, so for me it's overkill, but the all in one PCB definitely has its advantages. Quote Link to comment Share on other sites More sharing options...
moogah Posted November 8, 2006 Author Report Share Posted November 8, 2006 Also, I think that the lack of velocity for the accent is a severe handicap. For my clone, I plan to have both the accent, and certain parameters of the voices under velocity control. For example, the snare will not only get louder, but the snappy level will increase as the velocity increases. Is it possible using your version of the seq to add the jumpers to permit the use of an external AOUT board??I would generally agree about the loss of velocity control, and I had to think long and hard about it before deciding to stick with the original design as opposed to Sebastians modification that included the AOUT for velocity. What made the deal for me was two things: I'm really a purist when it comes to these classic machines (808, 909, 303, SH series, Mini, etc), when I listen to the tracks that feature them I'm always hard pressed to say that they are missing *anything*. Second, I knew from the start that I wanted to go out of my way to make this very mod friendly, as such keep in mind that the onboard core (along with all other midibox circuits) are *identical* to their SmashTV counterparts, and therefore you've got all the same options open to you. This way I can procede with my layout and still allow people alot of latitude to get their favorite features included. There will certianly be plenty of space available for extra PCB's and wiring ;DActually, now that I say that I think there is a jumper or two missing on the core.. which will be fixed on the final version :) I know I included the jumpers for the AOUT module and the USB module.EDIT: got a photobucket account, and here are some more pics: Quote Link to comment Share on other sites More sharing options...
Jaicen Posted November 9, 2006 Report Share Posted November 9, 2006 Hehe, keep the gear-porn coming!!I think you've probably got the 808 clone spot on to be honest. Since you're making a clone, it makes sense to have accent as a trigger. If like me, you're making something to fit your own needs, then the accent CV is important as it allows for a more expressive box. The way I see it, is that if I can't afford a real 808, I may as well build something that fulfils my needs better than the original, for example, by having MIDI triggers and Tempo control, and Velocity for each voice. I had also planned to use a classic Ring-mod circuit for a couple of the voices, but I'm not sure wether i'll bother adding that internally or externally yet. I've designed an AD633 ring mod which is very nice, but not as gritty as a real transformer-diode model. Quote Link to comment Share on other sites More sharing options...
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