airmailed

i don't think there is a master/slave thing like the sid.. but then it is 5 part multitimbral anyway.. adam

this is not hardware related but maybe a nice feature for the frontpanel if there is room.... the dx7 keyboard has pictures of all the algorithims printed along the top.. i think this makes programming a little easier.. on your design this could be along the top above the lcd.. maybe all the way across the top of the panel.. only if you want to of course ;-) best wishes adam

is that everyone now? i'll check the price for 26x ymfs if it is.. well.. i'll check after the weekend ;-) best wishes adam

yes shed.. two sets.. total is now 25 best wishes adam

i'm in the uk.. ideally pay by paypal in pounds sterling.. if this is not possible i expect we can work something out.. i think paypal is easiest

thanks guys, current count is 24.. i think i will make the order when the 50 mark is reached (less work for me then ;-)... so if you are thinking about it, i think it would be best to decide one way or the other now, and let me know if you want to take part in this order best wishes adam

12.. edit.. 14 now

hi Thorsten, thanks for writing... the wavetables sound promising..i have been playing with wavetables in pure data lately, in pd it is possible to draw the waveforms with the mouse (and to draw way outside of the graph for some extreme gains etc.). i am not very familiar with yamaha fm.. my friend dave has had a dx7 for years.. he told me once about using noise as a starting point for analogue style synthesis.. i'm not sure what he meant but i have been trying it lately on the micro modular.. first thing i found was that modulating an operator all the way with white noise makes musically pitched noise (which i like..) i am still an absolute beginner with fm.. i was amazed to find that this makes a very nice soft cymbal type sound.. i think what amazed me was that i modulated an operator with a 7hz sine wave, and got white noise, i couldn't believe it.. i was pleased.. i was expecting a pulsing ring modulated type sound.. but no ;-) well.. the lfo rate is also controlled by the ad envelope so it might be going much higher than 7hz at the peak.. the emu (again) also features noise as a modulation source.. and another LFO shape called sine plus noise (it looks like a very messy sine wave) which is supposed to be good for simulating flute and trumpet vibrato i think a noise LFO waveform would consist of a random value at each step, evenly spaced across the whole range another nice feature i have heard of on some synths is the ability to morph the lfo shape with a knob.. i think it would be nice to be able to choose 2 lfos (e.g square and sine) and morph between the two shapes.. i don't know how difficult this is to program.. anyway.. bye for now best wishes adam PS, for anyone who is interested, here are some articles on modulation, am and FM modulation http://www.soundonsound.com/sos/feb00/articles/synthsecrets.htm?session=bd3fadb4fe25022fcb636f0b5aae42f7 am http://www.soundonsound.com/sos/mar00/articles/synthsecrets.htm?session=bd3fadb4fe25022fcb636f0b5aae42f7 fm part 1 http://www.soundonsound.com/sos/apr00/articles/synthsecrets.htm?session=bd3fadb4fe25022fcb636f0b5aae42f7 fm part 2 http://www.soundonsound.com/sos/may00/articles/synth.htm?session=bd3fadb4fe25022fcb636f0b5aae42f7

this looks great to me so far (i still haven't built my first box yet.. more and more features keep coming to me ;-) .. this seems like the kind of synth i would like to build a control surface for.. well.. that led mod matrix on the sid looks very hard to build.. i think with this one i would like kind of a "halfway" option between minimal control surface and the full one.. what i mean is the full surface without the led matrix (mods controlled via the menu like in the minimal version).. only if an led matrix is planned of course.. the new modulation possibilities sound good as well.. on the proteus synths they use a system of virtual patchcords for mod sources controlling other sources (lfos controlling lfos etc.).. this is all done via a 2 line lcd (so it seems a bit like rocket science.. much easier with a computer ;-) for example: env1 <- patchcord1-> LFO2rate <- patchcord2-> Q each patchcord can control several parameters at once and each has a "depth" control (if this is set to -100 then the lfo waverform it controls is reversed) as well as patchcords the emu synths also have "processers" such as diode, quantizer, 4x gain etc. which can be patched between mod sources to modify the control signals further.. and further and further.. all the best adam

8 and counting... ;-)

indeed.. ;-)

yeah i'm the uk too.. so uk and europe is fine.. the states/canada is ok too.. and aus/nz and most other places current count is 4 including me

hi, the chip order is now closed.. lots of people have bought several sets of chips, i think there might be some spares for sale if anyone decides not to make several synths best wishes adam i have found a supplier of the ymf and yacc chips (new) and am writing to ask if anyone would like to take part in a bulk order? the price for one set (1x ymf and 2x yacc) would be about $6-7 plus postage (and antistatic packaging) to get them at this price 50 of each chip must be bought pm me if you are interested.. you can also post here but i think pm is better because then i am sure to see your message if you only want 1 yacc i think this is ok too.. we may be able to buy smaller amounts but i think the price will increase then.. i can check this if less than 50 sets are wanted best wishes adam

many thanks Raphael.. best wishes adam

hi, i want to put some colour changing leds in my midibox like these.. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=50423&item=5734082810&rd=1 these leds are supposed to be used with a 100 ohm resistor with a 5v supply.. my question is.. is it ok to just replace the 220ohm resistor in the dout board with a 100ohm or do i need to put an extra resistor between the dout board and the led? best wishes adam

sounds good.. can i request that it has a built in patchbay and merger? (so can be used standalone as well as with a computer) ;-) best wishes adam

thanks duggle..

i've been wondering about which psu to use for a 2x sid.. they are 6581's which i hear needs 5v and 9v i don't have any c64s.. would a pc power supply like this be suitable? if not.. are these 5 and 9v psu's available commercially? many thanks adam

the sids from england on sale at the moment are sometimes faulty (2 of us now on this forum bought faulty sids from the guy..) they are advertised as new but are in fact from old c64's the sellers name is bubbobo (or something similar)

hi Dave.. thanks for the offer, i have sent you a pm about testing the chips... as for getting your faulty one replaced.. i think it is worth writing to the guy in a few days, staying calm with him.. maybe sending the chip back by registered post (if it's knackered anyway then nothing to lose) with a note saying this one is faulty, i want you to send a replacement please.. something like that.. worth a go anyway best wishes adam

i guess at this point it might be good to clarify if we're talking about the same person or not.. this is where i got mine: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=3543&item=8136723028&rd=1&ssPageName=WDVW how about you dave?

didn't buy any extras.. i have 2 so i'll just build one module and test both.. the guy has quite a lot (95 or so when i last looked) so i think getting them will be ok.. if not.. i think i'll make do with what i have

it's on one end of the chip.. not in the middle.. i think they probably are new but paranoia makes me wonder.. and i wouldn't be wanting to recommend this guy on ebay who's selling them if i thought he'd ripped them out of a c64 (he is advertising them as new and unused)

hmmm.... well one has a blob on and one doesn't.. they are all packaged up as spares.. maybe i will inspect them more closely

i got the sids today.. i don't have any way of testing them but they look ok.. except one has a blob of white paint on it.. makes me wonder if they are new or have been ripped out of a c64 ;-) is a blob of paint normal? (i saw one in a pic on this site)