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f0plugins contains a sid emulator for supercollider http://www.fredrikolofsson.com/pages/code-sc.html i expect sc could be built for this chip (edit - i've emailed xmos and asked nicely if they'll build sc - no idea if they will or not, but would be a great way to demo their boards)

apologies if this board was already mentioned: http://www.mikroe.com/mini/stm32/

http://www.xmos.com/startkit#JjyFSgy7 looks good

thanks for this, i've been looking at expert sleepers es3 recently which uses to adat to provide 8 channels of 10v cv for modular synths http://www.schneidersladen.de/en/expert-sleepers-es-3-mk2-aluminium.html

i get distracted for only 6-8 years and find you've developed several generations of new hardware in the meantime, amazing :) someone pointed this board out to me recently - no audio dac, but does have a screen (i expect you saw it already) http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/PF259090 and this one (which needs a 4A supply) - http://www.hardkernel.com/renewal_2011/products/prdt_info.php?g_code=G137510300620

i'm amazed by the price of dacs - i have been away from this forum and electronics for a long time in a supercollider wilderness, when i return chips have got better and cheaper - not surprising i guess but still, 2 channel 24/192 audio dacs for 10 euro blows my mind :smile: http://uk.rs-online.com/web/c/semiconductors/data-converters/audio-dacs/?applied-dimensions=4294730111,4294496964&esid=cl_4294967294,cl_4294959918,cl_4294956699,cl_4294959345,cl_4294958709,cl_4294958376&m=1 oh & adc's - http://uk.rs-online.com/web/c/semiconductors/data-converters/audio-adcs/?applied-dimensions=4294730111,4294509620,4294507133&esid=cl_4294967294,cl_4294959918,cl_4294957494,cl_4294956699,cl_4294956603,cl_4294958419&m=1 i thought i saw a quad channel for less than 10 euro recently

you can have up to 8 switches connected directly to your core zenpho, so if you wanted a patch store button and some other functions (patch up down, or a rotary encoder for this, and maybe an audition button to sound a note on the current patch) to get round the accidental write problem i recommend an airwolf/fighter jet style switch with flip up cover mounted in the centre of your instrument panel, with hazard warning lights and that

yes i must say zenpho seems very thorough, welcome to the forum :-)

thanks very much for your help fizzicato, my friend has already soldered one board, so some desoldering required i think

I've got some 1st gen OPL boards from smash that are being built now, I remmber that the resistor numbers printed on the board are wrong, If anyone has the correct values, could they let me know?

hello there, it's been a while, but me & a friend are making our mbfm's now, but i'm having trouble finding the oscillator in the UK reichelt have it so i'm writing to ask if anyone in europe, possibly germany, is ordering from them soon we would like to send some money and have 3 or 4 14.138 oscillators added to the order, so we don't have to spend 150 eur reichelt minimum can anyone help us with this? or does anyone have any spare 14.138Mhz oscillators they can sell us?

this is another one... www.eyesweb.org

I have a set available (1x ymf 2x yacc) for £10 inc delivery worldwide

try these guys, probably best to do it through a company http://lookic.com as i recall it's about half the price you quoted (to be expected if it's wholesale not buying from a retailer) minimum order is $100 us... not sure if thats per part or per order... i think we got about 50 chip sets between us (1x ymf 2x yacc) to get the price we did... though shipping (they won't send via post, only fedex etc) and sales taxes bumped that price up a fair amount in the end

hi Dave, I've got a schematic in a book.. my scanners playing up right now... but it uses a 555 and a 4017 counter, 555 for the sound, 4017 mainly for driving some led's to show time visually....the accent is done by hooking up a piezo to the first output of the 4017 so that the first beat of the bar is accented... more 4017 tips here... http://members.shaw.ca/roma/thirty-four.html

i just read this, it sounded kind of relevant, in the sense that some people might be writing c code that they want as fast as possible. http://www.cs.indiana.edu/~jsobel/c455-c511.updated.txt i've been playing with scheme a little bit, after reading a lot of articles on http://paulgraham.com about lisp, it sounds pretty interesting though some of it is above me... also of interest is lush.... http://lush.sf.net lush is a lisp style language which can be translated into c by the software.... the documentation is a little dense though

i liked that demo, i sent it to a chiptune loving friend... http://www.soundonsound.com/search?page=2&Section=8&Subject=12 a whole series of drum synthesis articles... i have made good claps on the nord using bandpass filtered noise through an ad envelope... even applause with 3 together

i've made a quick & dirty randomisator in pd for some soft synths... it's pretty easy, a ctlout object for each cc with a random generator plugged into each one... also fairly simple to constrain the values etc. more for live tweaking than generating lots of patches at once... i have a random button in one thing that changes the 303 style bass sound on the fly, also attached a metronome to it so the sound changes automatically

i have seen some damned cheap temp thingy stations, maplin sell one for £25 which routinely gets reduced to £9.99 in sales... i haven't tried one cos i doubt i could get spares for it and the whole throwaway thing seems a bit nuts to me... not to mention that the chinese government are spending lots of their new found cash on nuclear submarines and other delights.... i do probably buy chinese goods without checking but am starting to think i should avoid it (if that's still possible)... trouble is i like getting stuff cheap ;-) theres a brand called xytronic which are quite cheap, don't know where they're made.... also some cheap ones can be had from opitec, a german supplier with offices all over europe http://opitec.com/

i think doepfer used the db in one of their keyboards, i remember there was also a standalone version (in a box with midi ports etc) produced by yamaha at the time, i think it was the mu80 or something like that, mu rings a bell anyway, it might be worth hunting one down second hand for cheap..

http://www.retrothing.com/2005/10/a_computer_buil.html

thanks guys, i checked that page before posting but didn't get very far, one of the chips on an old hard drive i have is socketed... seems like a nice easy solution... looks like a cheap tempco iron at some point, nevermind eh ;-)

anyone know of a retail supplier of smd sockets? i only just found out that they exist, i think it'd be easier for me to use these for my mbfm, maybe even cheaper than buying a tempco soldering iron... i think ideally i'd like some that had dip style pins for soldering into the board

your pic synth sounds pretty interesting, i like wavetables, pd has good wavetable oscillators, you can draw your own waveforms onscreen, i was thinking i would like to adapt the mios wavetable to accept midi control (it might do this already, i haven't looked that hard at it) i also saw a japanese vst which does wt, the name suggests using a kaos pad to draw waveforms live... the same guy has made an nes synth... and yes moebius, i had a spectrum... it used to overhheat after 2 hours or so and start crashing. i didn't realise that the z80 was still being made http://en.wikipedia.org/wiki/ZX_Spectrum