O-Silly-Scope

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O-Silly-Scope

Postby gary » Mon Apr 18, 2011 12:02 pm

I came across an item on YouTube which I found interesting called OscilloFun.

We NBTV-ers are familiar with using oscilloscopes to display NBTV using the X, Y, and Z (or pwm) channels, but it delights me to see that you can create graphics such as 3D boxes and text with what, to the ear, appears to be passable music.

Someone posted a link to a FLAC version of the music (oscillofun.flac). I have converted it to wav and, for those who don't own an oscilloscope and wish to try it, have written a small virtual 'scope to display it on. I also attach a link to a video showing it running on my PC (BTW it will require a modernish PC running windows >= XP).

http://www.youtube.com/watch?v=-zYBRFvO1gQ
Attachments
oscillofun.wav
The "music"
(8.91 MiB) Downloaded 514 times
oscilloscope.zip
(534.33 KiB) Downloaded 466 times
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Postby Lowtone » Tue Apr 19, 2011 1:49 am

Nice :P

Do you know if a programm allows to "write" on spectrograph ?
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Postby Dave Moll » Tue Apr 19, 2011 4:04 am

See also YouScope. I'm sure I have a WAV file of (an earlier version of) this (feeds into X and Y inputs of 'scope) somewhere, but can't lay my hands on it at present.

Playing it from my (now deceased) laptop, I remember that the inversion problem meant that I had my 'scope lying on its back to watch it!
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Postby Lowtone » Tue Apr 19, 2011 5:12 am

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Postby gary » Tue Apr 19, 2011 11:49 am

Lowtone wrote:Nice :P

Do you know if a programm allows to "write" on spectrograph ?


Yes I have written a (slow) version of such a programme and could post it if you like, but there are lots of (better) free versions on the net (e.g. google bitmap&wave etc).

Audacity is a good free way of viewing this type of file.
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Postby gary » Tue Apr 19, 2011 12:30 pm

Dave Moll wrote:See also YouScope. I'm sure I have a WAV file of (an earlier version of) this (feeds into X and Y inputs of 'scope) somewhere, but can't lay my hands on it at present.

Playing it from my (now deceased) laptop, I remember that the inversion problem meant that I had my 'scope lying on its back to watch it!


Yes I have that (see attached).

I guess the main difference between this and the spectrum files to the oscillofun files is the latter is truly "listenable" in it's own right - someone went to a great deal of trouble to achieve that.

Edit: It seems uploads are disabled or there is a server problem at the moment - I will try to upload later.

Edit: looks like the full item was too big to upload - here is part 1 - let me know if anyone wants part 2
Attachments
youscope-wave-swapped-part1.wav
Part 1 of referenced item
(15.19 MiB) Downloaded 455 times
gary
 

Postby Steve Anderson » Tue Apr 19, 2011 5:12 pm

Dear All,

There is a 20MB limit on uploads...probably the default value in the forum software. But that can be changed if you wish to upload a larger file...just let Andrew, Dave or I know and we'll give you the green light.

Steve A.
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Postby Lowtone » Thu Apr 21, 2011 4:41 am

gary wrote:
Yes I have written a (slow) version of such a programme and could post it if you like, but there are lots of (better) free versions on the net (e.g. google bitmap&wave etc).

It would be nice to try :D

gary wrote:Audacity is a good free way of viewing this type of file.

I use Gram 5 to see spectrographs
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Postby gary » Fri Apr 22, 2011 2:48 pm

Lowtone wrote:It would be nice to try :D


Here it is then - warning don't bother trying it on very large images unless you have a lot of time or processing power available:

Here is an example of a familiar image:

and as displayed in cooledit 2000


(note the generator is optimised for a band resolution of 256)
Attachments
spectrogram.zip
(431.43 KiB) Downloaded 449 times
seq2.wav
(2.38 MiB) Downloaded 457 times
example.jpg
example.jpg (16.21 KiB) Viewed 11164 times
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Postby Lowtone » Sat Apr 23, 2011 4:12 am

Ah thanks :P
It works but really good with Gram 5, I have to speed up the file in order to display the picture
Attachments
spectrograph.PNG
gram
(394.96 KiB) Downloaded 8 times
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Postby Alan » Sat May 07, 2011 3:53 am

I have deliberately posted this to "O Silly Scope" because that is what I am begining to believe I have bought.
Yes, it is a (ARM) DSO 201 nano hand-held scope from eBay.
It came without any destructions, and what I have managed to glean from the net is most confusing. (It is not written in a format that in my dotage, am I able to understand).
I have bought a microSD card, formatted it in FAT16 ( a format foreign to LINUX), but cannot get it to save, let alone display, traces, tho' it gives a lovely clear trace from the Triple Waveform Generator.

Anyone got any exoerience with this toy?

Many thanks,

Alan
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O Sil Oscope

Postby Alan » Sat Jun 11, 2011 8:12 pm

DSO201 - Problem solved!
Eventually sent to Seeed Studio forum at www.seeedstudio.com/forum/viewforum.php?f=12 (Yes, 3 * 'e' in the name)
There it was suggested that SD card was faulty or not properly in contact. The latter proved the fault - judicious use of a fingernail finally pressed the card home. Then up came functions that were previously missing. A fine little gadget!

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