Strobe the decoder with your own hands

Дмитр · Post by **Дмитр** » Mon Jan 25, 2010 7:19

lay out a preliminary pattern of audiostrobe on two channels, made in Sprint Layout 5, it attractivene, you only need 3 jumper, they are shown connected.
to see the type of part, hover over it.
component values see here http://www.instructables.com/id/Make-a- ... and-Tools/ I collected runs.
who understands the program, can fix him. the scheme is designed to work from the power supply 9 to 18 V. but you can put a diode and get the job done from usb advanced.
want to stick another control brightness and volume.
of the notebook something will not work, the soundcard is weak I guess that's why I think to hook up this amp
http://www.radiokot.ru/circuit/audio/amplifier/20/

http://depositfiles.com/files/dnama59n3

write that as a Yes

Александр____ · Post by **Александр____** » Thu Jan 28, 2010 11:34

Anonymous wrote:by the Way, what do You think, what chip is assembled gate decoder in sold mind machines ? Something tells me that LM567...

In innerpulse do not have it.
There are operazioni LM6132, there is umzch LM4881 AND taxis that all ancient filipkowski MK .
P87C51RC (ROM-32KB RAM-512байт) with sticker innerPulse 2.0 2004

Экко · Post by **Экко** » Fri Mar 26, 2010 14:40

Lightman
Hi, have you collected streamdecoder scheme http://www.bwgen.com/magicjim/audio-strobe.jpeg . A question: I see on the diagram only one output for a signal input, and the second where to throw? on the ground?

Guest · Post by **Guest** » Sun Apr 04, 2010 12:37

ECCO
I post cost for audiostrobe
http://depositfiles.com/files/dnama59n3 with reference to component values, if you compare them to your diagram you'll see that it's the same thing.
do cost Yes respeite

Экко · Post by **Экко** » Tue Apr 06, 2010 10:47

Guest
in the diagram detail similar to the transistor is a stabilizer 5 volts L7805T? and it is possible to from 5 volts to serve and not 9?

Guest · Post by **Guest** » Thu Apr 08, 2010 7:24

Yes, you can just file stupid 5 volt with USB connector

Экко · Post by **Экко** » Thu Apr 08, 2010 9:50

collected, does not work: responds to almost all frequencies, variable rezyuk twisted - does not help.

Экко · Post by **Экко** » Sun Apr 11, 2010 13:39

Good news!

For those who have no normal working gate decoder:

The idea to write, and, in fact, already written in the test variant, the program enabling the use of glasses to all AVS programs (BWGen, NP, Shrink, etc..) the Program reads the color of the pixel at the center of the screen, and sends the appropriate pulse to LPT. Make points and connect to LPT really quite simple, here difficulties should not arise.
The program, in my opinion, adequately conveys flash.

Guest · Post by **Guest** » Sun Apr 11, 2010 13:49

and the capacitor C2 is 0.005 uf - matched accurately? although he is not perfect-sets the size of the bandwidth of the filter.

resistor R1 sets the frequency at which to operate the filter in our case according to the scheme of 470 ohms - according to the calculations should be 481 Ohm frequency 19200

Экко · Post by **Экко** » Sun Apr 11, 2010 14:04

and the capacitor C2 is 0.005 uf - matched accurately?

just bought the given capacity.

the resistor R1 sets the frequency at which to operate the filter in our case according to the scheme of 470 ohms - according to the calculations should be 481 Ohm frequency 19200

except it still is adjustable by P1, it turns out to be only one rezyuk on 481 Ohms?

Post by **Андрей Патрушев** » Sun Apr 11, 2010 14:05

Экко wrote:Good news!

For those who have no normal working gate decoder:

The idea to write, and, in fact, already written in the test variant, the program enabling the use of glasses to all AVS programs (BWGen, NP, Shrink, etc..) the Program reads the color of the pixel at the center of the screen, and sends the appropriate pulse to LPT. Make points and connect to LPT really quite simple, here difficulties should not arise.
The program, in my opinion, adequately conveys flash.

All is good, but the LPT port I did not see on computers for five years now...

Экко · Post by **Экко** » Sun Apr 11, 2010 14:49

All is good, but the LPT port I did not see on computers for five years now...

I 2 months ago I bought a new motherboard, it has a LPT.
If not, you can buy a PCI LPT.

Экко · Post by **Экко** » Sun Apr 11, 2010 19:17

gathered transistor switch, hooked up a homemade gift can say: works just fine! Although there is one drawback: I had code to read pixel and control LPT to put in the cycle, because of this, the program loops and does not answer, furthermore consumes a single core CPU, but the only way I was able to pass flashes with no gaps.

Guest · Post by **Guest** » Sun Apr 11, 2010 19:39

I was a bit mistaken about 481 om...in short I explain as much detail as possible
it is possible that this skeleton look http://www.instructables.com/files/orig ... KCN9FT.gif
(no P1 in it,the author of the noodle stuck to with lights) fee I did. but it's mono
option, so I made it dual - 2 channel stereo
as for specific settings - I calculated online calculator http://www.vk2zay.net/calculators/lm567.php enter in the field
R1 473 Ohm,
C1 0.1 Farad
C2 Farad 0.0005
and we see that R1 and C1 set the required filter frequency 19200, therefore they must be quality components.
and by changing the parameter C2, we changed the bandwidth. here the problems begin - if the strip is narrow - the device does not respond to other sounds, but the bulb barely flare, wide - reacts to almost everything but a bright flash. you need to find.
I have the device while is not completed yet, hands do not reach yet for a time, but soon it will go, I will give a detailed report

Guest · Post by **Guest** » Sun Apr 11, 2010 19:41

correction - in the field online calculator C2 - 0.005 Farad

Экко · Post by **Экко** » Sun Apr 11, 2010 19:45

Guest
well, thanks for the info, as the thread went back on decoder

------------------------------
On the recommendation of one member of the forum did support COM port. It turned out that working with him even easier. Yes you can buy an adapter USB-COM, but I can't guarantee it will work.

Экко · Post by **Экко** » Thu Apr 22, 2010 9:07

C2 - 0.005 Farad

so all the same FARAD, not MICROFARAD, as shown on the scheme (http://www.bwgen.com/magicjim/audio-strobe.jpeg) ??

this scheme does not work out?

but the light barely flashes

lm567 isn't a threshold?

C1 0.1 Farad

this is equal to 100 000 microfarads! something too large capacity

Guest · Post by **Guest** » Sun Apr 25, 2010 13:30

error simple - uF is microfarad

Guest · Post by **Guest** » Sun Apr 25, 2010 13:32

just in the calculator, enter the data as farady signed

Экко · Post by **Экко** » Mon Apr 26, 2010 11:10

works! The reason was faulty mikruhi.
Of course, there is the fact that are captured along with 19 200 Hz and other high frequency, but this does not prevent.

Guest · Post by **Guest** » Sat May 01, 2010 0:10

which parameters are the key components? all the schema without changes?

Экко · Post by **Экко** » Sun May 02, 2010 12:38

all in the circuit without changes?

So. Observations: the decoder responds to the frequencies more than 5 KHz, giving a voltage of 1-2 V, 19 200 Hz gives 5 V. Tried to deal with it: lowered bandwidth, increasing the capacitance C2, but it did not help, oddly enough. And you have that? It would be necessary to determine the optimal parameters of the elements and rework the outline so that followers are not obsessed with each selection.

Экко · Post by **Экко** » Tue May 04, 2010 15:57

In the course of experimentation has established the value of resistors on the input: ~100 Ohms. But we must bear in mind that the program issuing the strobe and strobe disc Andrew different amplitude gate, so 100 Ohms will work correctly only with the prog, so I suggest to put a variable rezyuk at the entrance.

Interesting to hear from owners of branded MM, how do you deal with the gate? Is there any such stocks as here?

Экко · Post by **Экко** » Fri Jul 23, 2010 14:48

Drew a diagram, which more clearly all of the above, there are transistor switches that no one knew how to connect, I too long suffered.

Ломан · Post by **Ломан** » Sat Jul 24, 2010 5:04

The decoder circuit based on LM567, which is discussed here, strictly speaking, is not audiostrobe decoder. As discussed here, audiostrobe decoder changes the amplitude of the light pulses of the LEDs depending on the amplitude of the signal audiostrobe. And the output of the LM567 works in key mode, i.e. can only provide a rectangular modulation of light pulses.
I propose an improved scheme based on the same LM567. Only the output signal is taken from her outside the box - with legs 1 instead of 8. This signal is proportional to the amplitude of the input signal with a frequency of 19200 Hz. Only it cannot be used directly to control the LEDs. This is the remaining part of the circuit.
The diagram shows two identical channels (for left and right eyes). The values of the elements in the piping LM567 different from those given in the common circuit (see capacitor and resistor 6 foot LM567). As shown by the adjustment at such values of the circuit works much better.
If my scheme is anyone interested, willing to lay out the PCB drawing and commissioning instructions.