OK, so this might be a bit offtopic for this board, but it's very cool.
The "other" hobby for me is programming, and one of the main things about programming is the "demo scene" - basically where teams of guys program cool graphical effects demonstrations on computers...
... or in this case, an oscilloscope!
http://www.youtube.com/watch?v=s1eNjUgaB-g
I guess many people have seen things like Lissajous figures generated on 'scopes, but this is very clever.
The "other" hobby for me is programming, and one of the main things about programming is the "demo scene" - basically where teams of guys program cool graphical effects demonstrations on computers...
... or in this case, an oscilloscope!
http://www.youtube.com/watch?v=s1eNjUgaB-g
I guess many people have seen things like Lissajous figures generated on 'scopes, but this is very clever.
where can you download the wav file?
you could make a special wav file for testing soundcards with so you can see problems visually.
you could make a special wav file for testing soundcards with so you can see problems visually.
http://kapsi.fi/~jpa/stuff/other/youscope-wave.flac is the wave data. This is a FLAC file so you need a player that will play it... winamp does but i think it needs a plugin.
http://flac.sourceforge.net
edit: oh, dont listen to it... especially not at high volume!
http://flac.sourceforge.net
edit: oh, dont listen to it... especially not at high volume!
One soundcard is used to generate the display... one channel controls X and the other controls Y. On the Youtube video, I guess the soundtrack is dubbed in afterwards.
I've also tried this under a software X-Y scope, specifically the one in GoldWave. It works but looks very flickery as there's no phosphor persistence to stabilise the image.
I've also tried this under a software X-Y scope, specifically the one in GoldWave. It works but looks very flickery as there's no phosphor persistence to stabilise the image.
I just tried it out. I had an earth loop that made things a bit fuzzy. A dark room helps.
Strange watching your headphone amp clip into a square when you turn the volume up too high.
I had trouble getting nice clean corners on the cubes, even on DC coupling.
This would be an interesting way to test amplifiers, run this through the amp into 8 ohms and look at the clarity of the CRO image.
Strange watching your headphone amp clip into a square when you turn the volume up too high.
I had trouble getting nice clean corners on the cubes, even on DC coupling.
This would be an interesting way to test amplifiers, run this through the amp into 8 ohms and look at the clarity of the CRO image.
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