albpower2seq4sid

Hi ilmenator, I had the same issue but with a smt32, one LCD works fine, both -> garbage. It appears when suply voltage with the PC through USB cable, and fix it changing a 74HC595 with a 74HCT595 instead. so now it's working fine, but what you wrote ( and what Thorsten wrote ) is very important to me to understand the problem, may be a voltage level problem? in my case it seems i think due to the use of a 74HCT595, I'm not sure Thanks to Thorsten and you for this contribution Albert

Hi Rolfdegen sorry because i don't speak german, it seems very interesting your project, some month ago i was working and program on Arduino Card for controlling a DAC module to generate several voltages to control analogic symtheziser modules I build for this purpose, like a VCO based on six hex buffer 4069, a VCF steiner type, and a VCA with discrete compontes but ota style (with current mirrors ), I try to see your project and within some days i try to comment it Best Regards!!

I recently built a second FM synth and for the control lines RS A0 A1 RW I used a 14 cm flat cable and channels 3 & 4 sound good, and notes sound without anything strange or spurious Although i bought some old creative sound cards, I found some YMF262 and YAC512 offers at ebay and Bought them, a few soldering and shorten control cables and I 've got clear sounds!!

Hello Sergio I saw the schematics of paia theremin and they seem very cool because their simplicity and quite good design, typical paia design, very interesting the concepts of signal math processing and... distortion... ( not harmful, if not beneficial in order to get great sounds!! ) and quite pretty design of case and front panel, besides that the midi module adds some interesting features to the system, so enjoy it!! Have fun!!

Piacere!! Todo bien che, te lo digo de onda!!! ok, I have two citizenship, argentina, and italian, 'cause my mother was italian so i love Italy and their people and history, i have italian aunts and uncles living in Australia and i call them often Well, as soon as i could see the theremin, i'll write you back to tell you what that theremin seems to me Salutti!!!

Hello Ser_Yo, thank you for reviving that old thread, it's a really interesting issue for me, but i couldn't see the link here at work due to restritions in the access to some sites, implemented in this institution because they say Internet it's only for academic use here, tonight at home i will see it. By the way, in my native language "Ser_Yo" sounds like "it's me", although in this case it must be "Soy_Yo", please, what country are you from? thank you again for sharing this information cheers!!

I saw the video! Lydia Kavina seems to be good! By the way the video shows some people watching this event, can I see you there? the video cam focuses at some faces

Ok, i notice the dificulties seeing the videos and a few performes achieves good tunning notes, although volume control (like a VCA ) is less critical, but hear detects very little pitch changes or interval ratio when moving around the pitch change antenna. Ah, really interesting the use of sensors at light or infrared range, thanks for the data

The basic idea i imagine is moving hands around the device it could generate midi code control, to play any midi device although at first it sounds good i need to figure out the dificulties to lead it to a practical design, one a DIY could build

A RING MODULATOR to combine both signals ( mathematically ) and then a Low pass filter ( would be better a VCF? )... see this...

I still thinking and searching... Some theremin players... players.txt

Hi everybody! today i was thinking ( sometimes i did ) and seeing schematics of theremin's so I thougt: why not? and more... with a microcontroller?? after all... what kind of mistery is a theremin? what does it include? a crystall oscillator? we know about that... a variable oscillator? we also know what it is ( are we fan's of VCO's ? ) a mixer of both osc? ( fixed and variable ) but can we control the overall process with a microcontroller ( In this case please help!!! ) ? it sounds interesting... well i was searching and i saw this site: http://www.gaudi.ch/OpenTheremin/ and different stages: ( fixed osc, microcontroller improvement, prototype with wooden case, etc ) http://www.gaudi.ch/OpenTheremin/index.php?option=com_content&view=article&id=49&Itemid=58 http://www.gaudi.ch/OpenTheremin/index.php?option=com_content&view=article&id=51&Itemid=59 http://www.gaudi.ch/OpenTheremin/index.php?option=com_content&view=article&id=85&Itemid=86 For the case i think a router case with two antennas could be used... well my mind speed increases with this idea! ( although it is a little slow! i'm speaking of my mind of course!! ) And what about of controlling a PIC with two antennas? ( pitch and volume ) maybe trough de ADC inputs? and output it as MIDI ? sounds great... It seems to me very interesting issue,

"One small step for man, one giant leap for mankind" It could be said two ( SID and OPL3 ) giants leaps for our comunnity ( Midibox ). I agree sample chips have no power to lift our spirit up like ( specially ) the SID has its great power of sounds that invades our souls. I don't know if anyone else, outside our community, could appreciate this legendary chips, a "middle age" between analog and digital ages, as to say digital control but powerful analog sound...

Could it be they have one, when we see an old sound board we run to buy it ( if we saw the chips on them. Could it be we'll become experts to recogniza the YMF262, we develop something like an eagle's eye to see that chips they seem to be reborn each time we find and reuse them

Hi Thorsten, I test the MIDI IN/OUT with 3.3 V and they work perfectly. No problem with 3.3 V on optocoupler. MIDI OUT #3 with 3.3V works well. Thanks Thorsten for your support Best Regards, Alberto

Ok, I opened that file, only one doubt more: is it 5 Volts or 3.3 Volts in both MIDI OUT'S ( #3 and #4 ) because on the Core LPC17 Schematic on both MIDI OUT, #1 and #2, there are 3.3 Volts ( after the 220 ohms resistors ) I had used both #1 and #2 MIDI OUT ( 3.3 VOlts ) and they are working well Thanks for your reply Best Regards

Last Saturday a batch board's seller told me "I show you the newest ones", then I told him "no..., Please, show me the oldest ones" so I found two with the YMF262 and the yac512!! of course I bought both boards So, before those boards would go to the rubbish dump I rescue ( I paid the boards = rescue ) the FM chips on their way to the skip... well a philosophical thought...