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Messages - Frixxion

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1
DACs / Re: USB Soundcard based on the CM6207
« on: May 24, 2009, 05:27:33 am »
sound fairly logical to me :). Although I didn't know about the fact that my LCD monitor can't show true violet?

But I do have a remark to that chromaticity story. When I use bluray in my projector, I COULD make more colors than using regular 445/473nm laser, but I don't think it's fair to say this. Because bluray is just barely visible when projected with other colors. I do agree that it produces some pretty cool colors when mixing it with only a little bit of green :D, I wonder which color I would get when mixing it with some red?

2
DACs / Re: USB Soundcard based on the CM6207
« on: May 22, 2009, 03:30:31 pm »
btw, I'm using HE-laserscan, does anyone know if there are palette's available for HE?

3
DACs / Re: USB Soundcard based on the CM6207
« on: May 22, 2009, 02:20:58 pm »
or, I could make a small pcb which I can remove any time and just directly connect all colours. Simple as that  :D. But your option is cool as well james, I think I'll probably try it with software first and if the results are nice I'll make it in hardware.

4
DACs / Re: USB Soundcard based on the CM6207
« on: May 22, 2009, 01:01:11 pm »
Right now I have a small test setup on a plywood board. It has a 30mw green on it and a phr-803T at 150mA. When they are both running CW I get a very nice blueish color 8), very nice! I think I'm gonna figure out some sort of schematic which automatically mixes in about 30mw (or more) of green when the bluray turns on. I want this because I only have a 30mw green atm and when I plot a circle which has "blue" (bluray) and green pieces in it, the bluray is barely visible. With such a schematic I can emulate a normal blue :). I included a simple schematic about what I mean. I don't know if such a schematic already exists, but I do know that it can be done softwarematically, but I like the idea of doing it hardwarematically alot more  :).



I don't know if this schematic will work and I don't know how to calculate the values for the resistors and caps and stuff because I study mechanical engineering. But I do have an uncle who has an electrical degree so he might help me on this one (unless you have some ideas for me  %))

5
DACs / Re: USB Soundcard based on the CM6207
« on: May 21, 2009, 01:40:13 pm »
Hi James,

I already have everything figured out  :) but I do not have the funds right now to buy anymore stuff since I'm not able to go to work right now. So I have to try to keep as much money in my pocket as I can since I still have to save up for my party holiday  ;D. But I have already bought a set of DT-40's so I have those already. I even have the aluminium base plate and all the combining optics :o. I'm planning on using a 150 mw green module, 2x200mw red DVD burner diodes and 1 or 2 PHR-800 blu ray diodes. I'm not really aiming for a perfect white balance or perfect colours. I just want to build a nice projector for now and I might upgrade those blurays to a nice decent blue laser. But I just don't have any funds for it right now :(. So I'll probably wait until after summer vacation when I can walk and stuff..... life sux...

I haven't really thought about using which cable yet, but is there so much signal interference when not using a shielded cable?

,Jordy

6
DACs / Re: USB Soundcard based on the CM6207
« on: May 14, 2009, 01:53:59 pm »
O yeah and thanks for the ankle vibes ;) very much appreciated :D. But really I should stop visiting these laser forums, they make me wanna buy MORE laserstuff, but with my ankle, my cashflow is really low. So no more laserbuying until I can get back to work and earn some money  >:(

7
DACs / Re: USB Soundcard based on the CM6207
« on: May 14, 2009, 01:40:21 pm »
Ok thank you for helping me with this! I can't make a video atm because my red diode has given up on me.... (again...) but I'll see if your solution will work for me :)

And btw james I don't use XLR, but it is a ethernet socket from Neutrik :D. So I have 8 pins :D:D

8
DACs / Re: USB Soundcard based on the CM6207
« on: May 11, 2009, 05:08:52 am »
Hi all,

Srry for the long radio silence but last weeks haven't been going too well for me... Friday I had surgery and they put 7 screws and 1 plate in my ankle so that wasn't a nice experience. Right now I feel alot better and the pain in my ankle has gone  :).

But now the fun stuff. I have hooked the DAC up to my DT's and the problem is now very visible. When I project anything the scan angle varies from time to time.

So, it pops from (for example) 6 deg to 7 deg about twice every second. But the image looks extremely clear and lines and stuff look very nice! The same thing is visible on my scope so the problem isn't in my scanners.

I'll try to shoot a video tonight and post it up here and I hope you can help me :)

Jordy

9
DACs / USB Soundcard based on the CM6207
« on: May 03, 2009, 03:24:13 pm »
A while ago I bought a Trust  SC-5500P 5.1 External Soundcard:

This is the circuit board that is inside:


As you can see the circuit board looks pretty straight forward and the raw DAC signals are very easy to find. First I desouldered all the jack's and decoupling caps. Then I shortened the board a bit, because I wanted to put the USB in on the outside of a box and some of the board was in the way (look at the pics and you'll understand).

After this is done you can find the signals as in the picture below:

The +5v can be found on either the USB-in or you can follow 5v line on the board and take it from there. My 5v is the most left green cable on the board.

Now in this threadhttp://www.photonlexicon.com/forums/showthread.php?t=4920&page=3  (post 38) you can find which channel (FL, FR, CEN, SUB, etc) is going to be RGBIXY. James also desribes how to tune all the pots on the correction amp kit.

After all this I put the correction amp kit and the soundcard in a neat aluminium box:





I have not yet tested it with my scanners, but have tested it thoroughly on several scopes. It works fine, but the only problem is that the images are not very stable yet. But it might be that this won't be visible when scanning, but I'd have to try it out. The testing is going to be a problem at the moment since I have broken my ankle this weekend and I am not able to walk for the next few weeks  >:( >:(. If anyone has questions or tips on how to improve this thread please say so!

,Jordy

10
DACs / Re: 8 Channel USB sound device for LaserBoy
« on: April 12, 2009, 03:06:14 pm »
Happy eastern everyone!

Ok, so I just checked my DAC out on my uncle's scope and found out that it was working fabulous! Only one downside, the 5v from the USB was all over the place  (4,940 - 5) >:(. So the scope images weren't still, they where moving :(. But still the Ilda pattern showed up nicely :). I did make some pictures, but I forgot to take my camera cable with me, so I'll post them soon :).

Ven and Dev means Vendor and Device I assume? If so  ;) Vendor is Trust and it is the SC-5500P 5.1 External Soundcard. It did arrive with a driver disc, but nothing fancy, the driver is only to make it work if windows doesn't have a built-in driver for it.

My uncle has a very stable 5v PSU, so we're going to see if that improves things :)


11
DACs / Re: 8 Channel USB sound device for LaserBoy
« on: April 09, 2009, 02:47:22 pm »
Ok, I've got it al finished up :D.

When at silence, the card (raw signal) puts out 2,2 vdc (don't remember if it is -or +). These raw signals are extremely easy to find. They are the only 6 lines that run to the (only) 6 caps on the card. Then with some reasoning it is easy to figure out where the XYRGB signals are going to come from.

So, I have hooked up my correction amp and got it all running. The board also has a very cool feature of a blinking LED when a sound is played. This LED also goes to full on when no sound is played, very handy!

Also James, this thing doesn't have an 8 channel mode, there are only 5 jacks on it, mic, line, front, rear, sub/center. So it is only made for 5.1 sound. Also, there is not really a driver provided with the box :( so I am forced to use the windows soundconfigurationscreen.

I'll open up a thread on PL with some pics and info on where to find the signals. I can post this on here also if you want to?

And also, what is this digital clipping? And is it required? Because I've got it all set up already, haven't hooked it up to my scanners yet because I first want to test it on my uncle scope :D. I'll post some pics of the results of the scoping next week or so, because I'm going to my uncle on sunday :).

Btw, I absolutely hate winamp so I won't be using that :P, VLC looks easy and I might try Spider Player, but I prefer to use a proper laser program, so I might look at buying HE-Laserscan :)

Jordy

12
DACs / Re: 8 Channel USB sound device for LaserBoy
« on: April 05, 2009, 04:11:39 pm »
What is that !!! ???

I think you found a whole new animal there!

I've never seen that board or heard of that chip before.

This sould be interesting!

James.  :)

Ah crap..... And I was hoping there would be tons of people with the same card so I could ask all my questions...

Oh well, I'll just wait for my correction amp to arrive and then I'll see :)

13
DACs / Re: 8 Channel USB sound device for LaserBoy
« on: April 05, 2009, 11:10:54 am »
Ok, here it is:


It looks pretty straight forward to me where to get the signals from... Also, the IC is a CM6207, is that a good or a bad thing (A)?



BTW I have already boxed the soundcard, but I'm still waiting for my correction amp... Dr sent it out past monday, so it should be here any day now :D

14
DACs / Re: 8 Channel USB sound device for LaserBoy
« on: March 28, 2009, 04:12:34 pm »
Never mind, I just mail ordered a trust 5.1 USB sound card and got it in today. Immediatly opened it up and it looked extremely simple :D. I could post a picture if you like?

15
DACs / Re: 8 Channel USB sound device for LaserBoy
« on: March 26, 2009, 08:58:08 am »
hmmm, is that a good or a bad thing :S because I read that it leaves some of the colors on and stuf :S and I really don't want that to happen!

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