Therezin

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Everything posted by Therezin

  1. mb sid & lcd 2 x 40

    In the MBSID source code you've downloaded, there is a file calle main.asm. somewhere in that file is a line that says #define CS_MENU_DISPLAYED_ITEMS 5 (if you're viewing it in windows notepad, hit ctrl-F to find the correct line). You need to change that line so it says 10 instead of 5, then compile and upload the source via midi.
  2. Apologies for confusion with the names  :P @Jackan: Thanks! now all I have to do is learn Swedish so I can order from there  ;)
  3. Jack, I love your SID. Where did you get that awesome OLED from?
  4. Smash TV Kits

    Apologies. I did misunderstand Smash, but I assure you all that it was not deliberate. When I read "those who have waited so patiently", I thought he meant people who had pre-ordered the new boards, forgetting that numerous orders had been lost in the past. My bad.
  5. Smash TV Kits

    You're throwing in extras? If I were to order tonight, would I be able to get a core and a sid module or have you already sold your initial shipment? And would I get some cabling thrown in too? </eager> *ahem*. Please forgive the kid-in-a-sweet-shop attitude of the previous questions, I'm just psyched about these boards.
  6. traktor controller design

    That's looking good, looks more professional now you're not using brightly coloured buttons and the LCDs look better placed to my eye. Can't wait to see some build photos  ;D
  7. I must seem so impatient

    Good God Smash, I thought they looked professional before! I've seen actual OEM mass-produced PC cards (hell, I've owned mass-produces PC cards) that didn't look that cool.
  8. traktor controller design

    Cool design, though personally I think the area around the LCD looks a little empty with the screen stuck there almost like an afterthought. Very cool layout though, and I love the big "turntables" so you can scratch. You gonna coat the aluminium with something so they're not too slippy?
  9. 3-Band EQ

    The image is just a screen dump from eagle at full zoom. As for the board itself, well, I'm not the best in the world when it comes to soldering and space in the case I'm gonna build in isn't really an issue. For more confident solderers the board could probably come down to around an inch wide, but I'd rather make a fairly big board I know I can solder than a really efficient one that I can't. Feel free to miniaturise it, just post your .brd file so I can have a look  ;D
  10. 3-Band EQ

    Hi all, I know there's a bunh of different threads on here about mixers, and I'm thinking of building one for when I get my MBSID going with 4 mono outs. The mixer will be 4-channel mono to 2-channel stereo, with individual track panning, gain control (hopefully) and 3-band EQ. At the moment, it's the EQ that's troubling me. I intend to create something similar to http://www.mitedu.freeserve.co.uk/Circuits/Audio/3band.htm. Using Eagle Light, I came up with a schematic based on that one, but the connections are confusing me a little. Could anyone shed some ligth on the subject? I assume that the 2 terminals on the left are the audio input bus, but it's on the right that's confusing me - there appears to be one output terminal, 2 earths and a V+ supply, connected to one of the earth terminals with a 100uF cap. Which of the earth terminals (if not both) do you think would be connected to the output jack? I've annotated my Eagle schematic and put it on my website - www.danielprice.org.uk/misc/toneControls1.jpg - with what I think might be needed. note that JP1, JP2 and JP3 are the pin headers I will connect my pots to. Also, have i got the pins of the LF351 right, since the diagram only used 5 pins? I have no experience of op-amps (yet). My Eagle schematic is also on my site at www.danielprice.org.uk/misc/tone.sch. Feel free to edit it, just let me know! Many thanks in advance, Dan.
  11. MIDIbox and Reason

    I'm not really sure about using it with Reason as I don't use it that often, but as far as I know the "64" part of the MB64 goes like this: up to 64 pots / faders (essentially the same) AND up to 64 buttons (an encoder or "endless pot" is 2 buttons) AND up to 64 LEDs I think that's right, though there are people here who are far more knowledgeable about the subject than myself...
  12. 3-Band EQ

    @Jidis: The values in this are just general values as specified in the link, and you're correct it is the "active 3-band Baxandall". And yeah, board editor rules  :P @Machinate: You're a super-noob? that makes 2 of us then! ;D You were right about the auto-routing gone crazy... I've updated the board designs with your recommendations, no more bridges! http://www.danielprice.org.uk/misc/3band-OPA2134-rev2.gif and http://www.danielprice.org.uk/misc/Baxendall-3band-3-OPA2134-rev2.brd
  13. 3-Band EQ

    OK, I haven't done the math with the resistance values yet (thinking of using the same values as in the schematic - I'll only have 2-band EQ on my SID, but I can use the mixer for other stuff if i want), but I have come up with the following circuit. Apologies for only having the board, but I made the mistake of editing the board when I discovered an error, instead of the schematic. I used the OPA2134 instead of a pair of OPA134's. Board GIF: http://www.danielprice.org.uk/misc/3band-OPA2134.gif And the .brd file itself: http://www.danielprice.org.uk/misc/Baxendall-3band-3-OPA2134.brd
  14. How to add a Volume pot to the SID??

    I'm no electronics expert, but am I right in guessing that a 10K or 100K logarythmic pot fading between the audio out and ground would be sufficient?
  15. @Jidis: I think the PSone tft screens use composite or s-video inputs from what I remember of the connections on the console. @lagoausente: You're correct, you can underclock a pentium-M processor to save energy. In fact, you can make it dynamically underclock itself depending on how much processing power is required at the time.
  16. 3-Band EQ

    That's a very good point, I hadn't thought of that. I'll do the maths when I'm at my own computer and see what values I come up with.
  17. 3-Band EQ

    Hmm, looking at some of the others on the net, I'd say you're right. I've been looking at the active 3-band Baxendall from http://www.headwize.com/projects/showproj.php?file=equal_prj.htm, and that seems to be more useful for my application - it's active, for one! Am i right in assuming that the left-hand earth contact (IC1 pin 3) is connected to the earth on the input bus, and the right-hand earth (IC2 pin 3) is connected to the output bus' earth? Or would they be connected to each other as well?
  18. Win XP x64: Do I need new midi driver for ltc?

    You might have trouble, from what I remember reading x64 edition needs new 64-bit drivers for just about everything. Good luck, I hope you find some!
  19. pot problem

    Thanks Moebius. Any idea if a pot for stereo panning (position of the audio in a stereo mix that is, not a stereo potentiometer) would be lin or log? Dan.
  20. Mini Keyboard Freebie...

    Surely something so cheap and tacky doesn't have midi ports?
  21. pot problem

    This is something that I was wondering about too - I plan to build a mixer for when I have my SID using 4 mono outs, and I was wondering whether I should use linear or logarythmic pots/faders... My understanding is to use lin for data values - like controlling a midi value, and log for volume or gain. Is this correct? Also, anyone know where I can get a center-detented pot to use for stereo panning?
  22. Questions on buttons / switches

    Oops... The parts are # 700460 - 62 (push button T602, though I think this may be a little small) and 700479 - 62 (pushbutton T604 = TS695) Dan
  23. Hi, I'm not sure if this has been asked before, feel free to shout at me if it has :P I was wondering what buttons people have been using on their midiboxes - I plan to make a SID with the step A CS, then upgrade eventually to the fully-featured step C. Specifically, I was wondering what type Thorsten used on his own SID. I've been looking at these: http://www1.uk.conrad.com/scripts/wgate/zcop_uk/?~template=pcat_product_details_document&object_guid=5C116E3BABD18552E10000000A010220&master_guid=&master_typ=&no_brotkrumennavi=&p_load_area=216400&p_artikelbilder_mode=Ein&p_sortopt=object_description&page=3&p_catalog_max_results=10&cachedetail= - sorry for the massive URL and these: http://www1.uk.conrad.com/scripts/wgate/zcop_uk/?~template=pcat_product_details_document&object_guid=64116E3BABD18552E10000000A010220&master_guid=&master_typ=&no_brotkrumennavi=&p_load_area=216400&p_artikelbilder_mode=Ein&p_sortopt=object_description&page=6&p_catalog_max_results=10&cachedetail= - again, sorry about the size of the URL I'm just wondering if 0.25mm is going to be enough travel for use on a CS, I'm hoping for a similar feel to the buttins (not footswitches) on my Zoom 4040 guitar FX unit. Thanks for the help, Dan.
  24. c64 power supply: 1st version & 2nd version: wich one?

    I'm glad you asked these questions, because I had similar thoughts - when it says "front of the plug" is that the plug itself, meaning the pins, or the front of the socket? Glad you anwered that one or I could have had some serious voltage problems  :P As for the design of the PSU itself, I was a little confused too - my own C64C (late model that I'm too attached to to take apart) had a square power supply with fins across it and an embossed C= logo, in the same grey/beige colour as the computer. I bought a Mk1 C64 (light brown, dark brown keys) expecting to have a wedge-shaped PSU and instead got one the same design as a later one, but in black. It outputs the right voltages to power up the C64 though, so  guess that's what matters. My question, is the optimised PSU schematic usable for 6581's, 8580's, or both? Thanks, Dan
  25. PC keyboard as midi controller

    I don't know about assigning CC's, but I've been working on a simple program that sends midi notes when you press keys - at the moment it's a little like Sweet Little Piano (they charge $14.99 for an app that I made a clone of in an afternoon >:() but I have plans to make it more complex...