Strobe the decoder with your own hands

Дмитрий О. М. · Post by **Дмитрий О. М.** » Mon Feb 02, 2009 21:31

PERSONAL CORRESPONDENCE

Тасев Александр wrote:0,22
believed by the formula of "datasite"

With this setting of the capacitor C1 to achieve a frequency of 19200 Hz would require a resistance of about ohms 215.2313 according to calculations by the formula. Then R1 from the circuit it is necessary to remove, as it 470 Ohm to P1 and put in 1K or 500 ohms. I did understand you correctly? Yes?

Thanks in advance for the answer!!!

Дмитрий О. М. · Post by **Дмитрий О. М.** » Tue Feb 03, 2009 10:43

FROM A PERSONAL

Тасев Александр wrote:Maybe true, but only to check now for a long time.

And most importantly, that surely worked for me only scheme mode detection packages without background signal.

Confidence that the pattern on the LM567 can be all recommended, I have lost.

Try to check the operation of the circuits of dataset...

It might be easier to do on dsPIC

И.К. · Post by **И.К.** » Wed Feb 04, 2009 3:51

I could not consider - what is the main chip - most likely, again, the comparator - if so, the decoder will not be satisfactory. standard - only prog type BWGen or NP2 which allow to rape (incorrect) level of the AS signal.
And even if not so...
You would figure how much it will cost not accessories, and one's own work.
I am generally a supporter of labor, and, in particular, with a soldering iron, but to do that it is impossible (or difficult, or expensive) to buy. Then, and only then it's worth it.
And so - AS a decoder from Photosonix (any model) - guaranteed to work.
And here, for example, important to gather a separate channel on headphones - with normal connectors and maybe a switchable filter audiostrobe. And with a normal mixer input - here it really is not enough, and, strangely enough, the buy hell.

Астранавт · Post by **Астранавт** » Mon Feb 16, 2009 15:11

Андрей Патрушев wrote:
Тасев Александр wrote: I thought that there must be two flashes: "soft" sinusoidal "hard" rectangular. Like all mindmachine...
In normal strb-decoder signal points served depending on the disc signal.

If I understand You correctly, in the NORMAL STREAMDECODER the signal to the glasses, modulated and amplitude? That is, using LM567, after which the signal necessary to modulate the amplitude?

Post by **Андрей Патрушев** » Mon Feb 16, 2009 15:32

Астранавт wrote:
Андрей Патрушев wrote:
Тасев Александр wrote: I thought that there must be two flashes: "soft" sinusoidal "hard" rectangular. Like all mindmachine...
In normal strb-decoder signal points served depending on the disc signal.
If I understand You correctly, in the NORMAL STREAMDECODER the signal to the glasses, modulated and amplitude? That is, using LM567, after which the signal necessary to modulate the amplitude?

Audiostrobe signal on the disk is the carrier frequency 19200Гц, pratulananda amplitude low-frequency signal or a sine, or any other form. Task gate decoder all this as accurately as possible to reproduce the light within the dynamic range of the LEDs.

Guest · Post by **Guest** » Mon Feb 16, 2009 16:33

Андрей Патрушев wrote:
Астранавт wrote:
Андрей Патрушев wrote: In normal strb-decoder signal points served depending on the disc signal.
If I understand You correctly, in the NORMAL STREAMDECODER the signal to the glasses, modulated and amplitude? That is, using LM567, after which the signal necessary to modulate the amplitude?
Audiostrobe signal on the disk is the carrier frequency 19200Гц, pratulananda amplitude low-frequency signal or a sine, or any other form. Task gate decoder all this as accurately as possible to reproduce the light within the dynamic range of the LEDs.

Thanks, a bit clearer. And then I thought LM567 works in a key mode, maintaining the output at a constant amplitude. I am malkoha aged 6 bright LEDs.

Астранавт · Post by **Астранавт** » Mon Feb 16, 2009 16:35

I apologize for not introducing myself.

Дмитрий О. М. · Post by **Дмитрий О. М.** » Fri Feb 27, 2009 20:23

My question is: what should happen when you configure the decoder in AUDACITY ? And do I need to connect the common ends of both channels to the hull ?

THANKS IN ADVANCE!!!

МВГ · Post by **МВГ** » Mon Mar 16, 2009 1:44

If I understand correctly TK is required to calculate the filter 19200 Hz with a slope of the frequency response 16-28dB/Oct + logarithmic amplifier to compress the dynamic range of the signal amplitude with filter + peak detector.
1 channel of TSMU

(a good). I'll try to build, but LM567 makes no sense, IMHO

Ег!с · Post by **Ег!с** » Thu Apr 02, 2009 15:59

The strobe signal is stereo or mono?

Post by **Андрей Патрушев** » Thu Apr 02, 2009 21:13

Ег!с wrote:the Strobe signal stereo or mono?

Stereo.

Ег!с · Post by **Ег!с** » Fri Apr 03, 2009 8:59

Ie each eye blinks at her, or just the same signal mixed in both channels?

Post by **Андрей Патрушев** » Fri Apr 03, 2009 12:44

Ег!с wrote:i.e. each eye blinks at her, or just the same signal mixed in both channels?

How to make, so be it.

Ег!с · Post by **Ег!с** » Fri Apr 03, 2009 12:52

1. but in your works and the one that is sewn into cars?
2. gate decoder can obrabatyval channels separately?

Post by **Андрей Патрушев** » Fri Apr 03, 2009 20:38

Ег!с wrote:1. but in your works and the one that is sewn into cars?
2. gate decoder can obrabatyval channels separately?

1. Differently - depends on the task.

2. Yes, of course.

Ег!с · Post by **Ег!с** » Wed Apr 08, 2009 8:59

Streamdecoder divides the signals for the color channels for multicolor glasses or all diodes are flashing simultaneously?

Post by **Андрей Патрушев** » Wed Apr 08, 2009 16:41

Ег!с wrote:Streamdecoder divides the signals for the color channels for multicolor glasses or all diodes are flashing simultaneously?

Only two channels. Can be switched (on the glasses) as to the different color and different eyes.

Ег!с · Post by **Ег!с** » Fri Apr 10, 2009 14:05

Can anyone have the ability to put a snippet of 5-10 seconds. Audiostrobe to wav and videos on this fragment (blinking points)
(for control as it should be and that turns out)
Thank you!

Ростислав · Post by **Ростислав** » Mon May 04, 2009 22:40

Hi friends! well that is kakienibud progress? can anyone shemku popotla lay? PTS hotsit to smoteret entu thing (to solder) but an electronics engineer I don't vyshev can current soldering!

Эйкс · Post by **Эйкс** » Wed Sep 23, 2009 18:42

Hello.
A small question:

Almost all schemes with LM 567 is used, the voltage regulator Lm 7805 . Is it possible to do without using the charging the cell ( in the presence of a charge from 0.2 to 1A \ 5 volts ) ?

Ile had some special role ?

Эйкс · Post by **Эйкс** » Wed Sep 23, 2009 21:17

Here's something I found . You can pick up from the desired frequency , with the right parts . http://www.vk2zay.net/calculators/lm567.php

Волутар · Post by **Волутар** » Tue Sep 29, 2009 0:08

19200 Hz at the sampling rate at 44100 (and still 48000) gives the interference artifact is very noticeable to the ear (frequency of 9600, only 10db quieter than the main signal at 19200).
I'm afraid that when the frequency 96000Гц the artifact will be heard (the supposition is not possible).

Эйкс · Post by **Эйкс** » Tue Sep 29, 2009 11:40

Valutar
Not met entries , which uses a 9600, and even more 96000Гц.

Волутар · Post by **Волутар** » Tue Sep 29, 2009 13:06

Axe, 9600Гц is the frequency of harmonic artifacts that are audible when playing back the signal in 19200Гц.
96000Гц is the Samplerate of the audio path of the player (player or PC sound card).
I thought I clearly expressed my idea.

When playing tracks audiostrobe personally, I very clearly hear the high frequency ripple at the frequency of 9600Гц.

Although it may be a specific DAC...

Соловей · Post by **Соловей** » Tue Sep 29, 2009 19:23

Rostislav
Also once wanted to... went Through all the schema - everywhere or use a tone probe, though the exit either Yes or no - so that a sinusoidal signal does not get it. Or you can use a resonant circuit for filtratsii signal - there is even more interesting - sinusoida get, but what... the contour is usually a whole range filtration - captures not only the gate. But that would only strobe filtered - should vysokoporodnyh the coil to wind and set with the oscilloscope. Such a house, without access to a laboratory, it is hard to sculpt. Thought to write a program which distinguishes a gate in a separate wav file, and after a while podovat with the original two soundcard(glasses with a little alterations will be inserted in either directly into the soundcard...) But after I bought ProTutor the need for such developments has disappeared - basically listen to any session of Andrey Patrushev or discs without the gate. Don't even know create a program or not... Reluctant to create if it does not sell now(for Russian-speaking course for free - it's expensive and no purpose to put protection) - and a program without your own sessions sell nonsense.