oscilloscope art - Page 1
Forum section: electronics / general

author: Zo-lee
author_rank: Contributor
timestamp: April 17, 2016, 03:53:26 am
content: Hi guys,As I started to play with my recently repaired Tek 2215 and turning all the knobs every possible directions I found some interesting form and shape on the screen. IMO there are some quite good one, so I decided to share.I googled it and turned out "oscilloscope art" is exist so it's not my invention but my babies are dear to me.I used the 2215 and my MHS-5200A function generator both channel connected. Scope's vertical mode: "both" and "add". And turned all the knobs like a DJ.3 pictures attached but there are much more.If you have photos about your art works please share with me.If you have questions about the details or want to see more pictures of mine please ask.If you think I am an idiot please keep it to yourself.Cheers

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: April 17, 2016, 05:04:50 am
content: Can your oscilloscope do this?https://youtu.be/qnL40CbuodU

author: tautech
author_rank: Super Contributor
timestamp: April 17, 2016, 05:06:23 am
content: Nice, please show more.On a similar subject, check these threads by member GK:https://www.eevblog.com/forum/projects/t20347/https://www.eevblog.com/forum/projects/home-brew-analog-computer-system/

author: Zo-lee
author_rank: Contributor
timestamp: April 17, 2016, 05:34:37 am
content: Quote from: Carl_Smith on April 17, 2016, 05:04:50 am

author: Zo-lee
author_rank: Contributor
timestamp: April 17, 2016, 05:43:43 am
content: Quote from: tautech on April 17, 2016, 05:06:23 am

author: tautech
author_rank: Super Contributor
timestamp: April 17, 2016, 06:13:56 am
content: Quote from: Zo-lee on April 17, 2016, 05:43:43 amGreat stuff.Keep them coming.

author: German_EE
author_rank: Super Contributor
timestamp: April 17, 2016, 08:07:27 am
content: Here is an animated example made using a PC soundcard:

author: Kilrah
author_rank: Unknown
timestamp: April 17, 2016, 08:15:12 am
content: Quote from: Carl_Smith on April 17, 2016, 05:04:50 amThis is awesome! Love that they manage to make something that both looks and sounds good at the same time!

author: corax
author_rank: Contributor
timestamp: April 17, 2016, 10:48:44 am
content: 'Jerobeam Fenderson' has a bunch of oscilloscope art videos on Youtube.This one is good: drawing mushrooms on an oscilloscope- same mushroom that had a cameo in one of the videos posted earlier in the thread.

author: Iwanushka
author_rank: Frequent Contributor
timestamp: April 17, 2016, 04:50:27 pm
content: Very nice artwork indeed!

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: April 17, 2016, 05:08:36 pm
content: Quote from: Zo-lee on April 17, 2016, 05:34:37 amThe cool thing about the Jerobeam Fenderson videos is that the audio you hear is what is creating the display. But you are correct, it is a complex waveform generated on the computer. The scope is in XY mode and one channel of the stereo audio drives the X axis and the other channel drives the Y axis. So you can draw pretty much anything that way if you don't care what the waveform sounds like. But he puts a lot of work into getting the waveforms made in a way that produces the images and still sounds good as well, and that's what makes his work interesting. You can watch and think about how the audio makes the image.Your images are very interesting as well. Good work.

author: Kilrah
author_rank: Unknown
timestamp: April 17, 2016, 05:18:59 pm
content: Just watched all the Jerobeam Fenderson videos and sent a donation while I was at it.His job is just awesome, perfect balance between visual and audio pleasure. It's got rythm, melody, diversity... You can hear he sometimes plays with repeat frequency to keep the music varying and interesting yet without visibly disturbing the graphic pattern, and holds beautiful visual patterns that sound a bit too awkward just the right amount of time so you can appreciate them with the eyes without them starting to disturb your ears. Real work of art. Interestingly some stuff that looks great is also perfectly good 8-bit music.That's a very stark contrast with any other scope graphics video I've seen before where the sound (usually provided separately so you can try yourself, the video has 3rd-party music) had no attention whatsoever and is simply unbearable. Here you can connect your sound card output to see the actual result, while at the same time put a headset on to listen to it and enjoy it. He makes 3D animated graphics you can listen to and that's just insane... AND to top it off he can even mix that live.

author: Andy Watson
author_rank: Super Contributor
timestamp: April 17, 2016, 05:21:34 pm
content: Quote from: Carl_Smith on April 17, 2016, 05:08:36 pmYes, exactly. You can plug the audio on those youtube videos into your analogue oscilloscope and see those images. What you see is what you hear!

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: April 18, 2016, 01:13:07 am
content: Quote from: Andy Watson on April 17, 2016, 05:21:34 pmI've always wanted to actually hook my laptop up to my scope and see it work. Not that I doubt it works, but I wonder if anyone but Jerobeam Fenderson himself has done it. But I never got around to it...

author: Andy Watson
author_rank: Super Contributor
timestamp: April 18, 2016, 01:36:09 am
content: Quote from: Carl_Smith on April 18, 2016, 01:13:07 amDo it! I didn't believe it at first, so I had to try it. Those images are definitely in the audio signal that you hear. I wasn't able to get the same level of black/white separation as he shows in his videos, I found a very noticeable trace between graphics - but that is probably due to the scope that I used.

author: radar_macgyver
author_rank: Frequent Contributor
timestamp: April 18, 2016, 02:08:49 am
content: Quote from: Andy Watson on April 17, 2016, 05:21:34 pmNot quite. In the comments to one of his videos, he does say that the compression applied by Youtube messes up the visuals. He does make 192 kbps audio available so you can play it yourself. I tried, but my awful sound card made it look pretty bad (it doesn't support 192 kbps). First half of the mushroom one worked though.

author: amyk
author_rank: Super Contributor
timestamp: April 18, 2016, 03:21:33 am
content: You are seeing what you hear in this one too.

author: crispy_tofu
author_rank: Super Contributor
timestamp: April 18, 2016, 03:55:54 am
content: Awesome.

author: alsetalokin4017
author_rank: Super Contributor
timestamp: April 18, 2016, 04:28:08 am
content: Lissajous patterns created with 4 oscillators (all approximately sine waves) and the Tektronix RM503 scope in x-y mode:

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: April 19, 2016, 12:31:02 am
content: Quote from: alsetalokin4017 on April 18, 2016, 04:28:08 amI like how at times the trace looks like a stable 3D object rotating. Someone who knows more than I do about 3D graphics could possibly explain how a few oscillators could create that effect and even relate them to the equations of 3D to 2D projection.

author: tautech
author_rank: Super Contributor
timestamp: April 19, 2016, 12:34:15 am
content: Quote from: Carl_Smith on April 19, 2016, 12:31:02 amCheck the links I provided in reply #2.

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: April 19, 2016, 03:35:49 am
content: Quote from: tautech on April 19, 2016, 12:34:15 amDamn. Another rabbit hole to go down for several hours. I've looked at some of the first link. Quite impressive. Haven't got through half of it yet and it's giving me ideas...

author: timb
author_rank: Super Contributor
timestamp: April 19, 2016, 07:13:40 am
content: I turned an old Tek 213 into a tiny aquarium, complete with a vector fish:

author: Zo-lee
author_rank: Contributor
timestamp: April 19, 2016, 07:21:30 am
content: Quote from: timb on April 19, 2016, 07:13:40 amstylized Jesus

author: timb
author_rank: Super Contributor
timestamp: April 19, 2016, 07:27:35 am
content: Quote from: Zo-lee on April 19, 2016, 07:21:30 amYes, it's either an aquarium *or* the bumper of every car in the Bible Belt.(That's actually why I snapped the picture, because I thought it looked like a Jesusfish. Incidentally, when I used to have a real aquarium, I actually tried keeping some Jesusfish... Unfortunately, every time I put them in the tank the water would turn to wine and kill all the other fish! So I decided to keep Darwinfish instead, but they kept evolving legs and climbing out of the tank! I finally gave up. Keeping an aquarium is hard!)

author: Zo-lee
author_rank: Contributor
timestamp: April 19, 2016, 08:06:53 am
content: Quote from: timb on April 19, 2016, 07:27:35 amYeah and life is hard too... in a tank especially. Unless you are on a battlefield.

author: Zo-lee
author_rank: Contributor
timestamp: April 19, 2016, 09:48:20 am
content: I just made a selection video of the moving ones. here is the link:https://youtu.be/I8DjYSIQrOscheers

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: April 20, 2016, 01:23:57 am
content: Quote from: Zo-lee on April 19, 2016, 09:48:20 amI was thinking earlier I should ask if you could make a video if you had any that were moving patterns. I came back and found you beat me to it. Very interesting.I was thinking that since I have only one single channel function generator I could download an audio function generator program for my laptop so I can drive both channels. But even though it's still an analog signal, it feels like that still wouldn't be as cool as just using analog equipment.

author: Stonent
author_rank: Super Contributor
timestamp: April 20, 2016, 01:33:31 am
content: Quote from: radar_macgyver on April 18, 2016, 02:08:49 amOscillofun was just garbage on the screen when I did it from an MP3, but it worked well when I used a FLAC file.