Need help troubleshooting? Here's some places to ask for help! forum.oscilloscopemusic.com www.reddit.com/r/oscilloscopemusic/ discord.com/invite/wJY7cRbwyz
Great video :) will be using this as my default link to send to people that ask! Also even taught me some new things like making sure my DAC is turned up as much as possible to make the image clearer on the scopen
In addition to this most if not all digital scopes have this function too. Sadly my old Tektronix analog scope went up in smoke some months ago and I found a cheap and "broken" digital scope I fixed and now I can finally try oscillioscope music.
Yeah, digital scopes can do this too! It'll just take some extra setup that I didn't cover in this video. If the desire is to have that sweet green phosphor glow though, analog scopes are pretty much your only option. It mostly depends on what one wants to do.
There seems to be some confusion. Digital scopes also used to have phosphor. So there is a whole range of digital scopes out there that can both reproduce lissajous curves and do so using electrons on phosphor. My personal scope is a hybrid one. That means it's an analog scope with digital capabilities. The main difference between digital and analog modes as far as I'm concerned is that the digital mode has an extra layer of processing that allows for very precise analysis and tracking. When you remove that layer of processing, the resulting dot or signal becomes noticeably unstable and noisy. This is an inherent property of analog systems. I think I've heard it being referred to as bare electron beam on phosphor. However, even with digital processing, there is no doubt still electron beam on phosphor, you're just not seeing the electrons interacting and dancing with the input signal any more. What this means is indeed that true lissajous is impossible using digital signals. It's an inherently analog tool. All the scope does is tilt the electron beam in response to an input voltage. The digital counterpart, however, calculates the curve's positions on a cartesian plane, and then attempts to draw the beam there.
I mention them at 4:30. One of the places you can find the adaptors is here: www.rontechusa.com/copy-of-bnc-male-to-rca-jack-adapter/ There's also links to pretty much everything in the description.
I’m not understanding how u wen from dots to squares?? Please explain more thoroughly.. are u playing a frequency, simply change the voltage, etc.? So confused
@@tracelawson1367 100%. When I perform, I use my 4x4 audio interface to give me 2 copies of the sound. 1 copy for the scope, and 1 copy for the speakers. If you have an audio interface with more outputs, you can get more copies. If you had a 2x6 for example, you would have 3 copies, giving you 1 for a set of speakers and 2 scopes.
yes, i do that with a mono amplifier and a single speaker, i do a "mix to mono" network that is just two resistors of like 10 kiloohms that connect to the inner conductors of the audio cables and then the two resistors at the other side of em join in one point and go to the amplifier ("Y" connection), ground is all common and not connected to the network... alternatively you can simply tap onto the two inner conductors of the RCAs and put a stereo amplifier with two speakers
And another question again sorry, you said it’s able to hook up directly to the cd player through the adapter + rca cable, so it will be able show music frequency’s and etc?
Everyone's setup will be slightly different. A common output for cd players is a 3.5mm aka 1/8in cable. Assuming that is what your situation is, a 1/8in to stereo RCA splitter would work. You would also need an RCA to BNC adapter to get the RCA cables to connect to the scopes BNC inputs.
I bought everything. I purchased a motu m2 for my interface. When I get the scope going only thing that appears is a dot on the screen. And when the sound begins to play it just turns into a vertical line. Messing with the focus doesn’t make the image appear any better unfortunately
Sorry to hear that you're having some trouble. Oscilloscopes are pretty complicated machines, and I'm not much of a technician, so there's not much I can do to help you out unfortunately. You might have better luck talking to people who are more knowledgable with trouble shooting this sort of thing. You can try asking on the oscilloscope music subreddit. www.reddit.com/r/oscilloscopemusic/comments/14hkki6/only_producing_vertical_line_after_connecting/ Another place to try would be the discord. discord.gg/wJY7cRbwyz
Hello, are all DACs DC-coupled ? The price ranges varies from a few dozen euro/dollars to thousands. If I'm more of a hobby 'scoper than an audiophile.
Most dacs are not dc coupled. Usually this is a feature that people don't care about, so manufacturers don't often include it. I recommend getting an audio interface as that makes things a bit easier to deal with in the long run, but there's also a video explaining a ~ $10 solution if you have a little bit of soldering know how. th-cam.com/video/ZUJqwt6ZIYU/w-d-xo.html
@@ericlennartson Thanks for the input. I finally chipped in a couple of euros for a raspberry pi hat. not sure it's DC coupled either but the output looks much better than a computer sound card. Will dig more into it!
I'm using the "Oscilloscope!" software and I'm having the image cantering issue from using an AC interface. I'm not sure how to fix this as I'm not using a DAC, and I am giving the program the raw file as well as trying streaming the audio live. I have messed with all the settings to get a clear image but it hasn't prevented the dots from automatically cantering. Any suggestions?
Trying to troubleshoot from the yt comments section is always tricky, but I'll do my best. The first thing that comes to mind is that there may be a high pass filter somewhere in your audio chain. (this is basically all AC coupling really is.) I'd start from the beginning of the chain and slowly step through it, looking for any settings that may be in your software to disable anything that is modifying the audio. I'm unsure of the OS being used, or how the audio is being routed, but I do believe it's possible to play a file directly from the "Oscilloscope!" app. If it's still got issues when playing directly from the app, then there may be an issue with the audio file itself. The other thing to check is that a hifi lossless audio file is being used. (Something like a .wav). Other lossy file types will compress the data and have pretty heavy impact on the image. You can't just convert an mp3 into a wav either, since once the data has been compressed, you can't recover it. (thus we call it a lossy file type). Troubleshooting can be frustrating, but there's plenty of friendly people in these communities, you can also ask for help! forum.oscilloscopemusic.com www.reddit.com/r/oscilloscopemusic/ discord.com/invite/wJY7cRbwyz
I'm not entirely sure what your setup is, so it's a little tough for me to say exactly. The sound needs to be dc coupled all the way through the signal chain; or at the very least from the point in which an offset is desired. So for a preamp, if the signal going into it is dc coupled, and the preamp itself is also dc coupled, then it should work. Generally speaking, for most musical uses having a dc offset is not desirable, so finding equipment that allows for this can be tricky to find sometimes. You don't necessarily need a dc coupled signal for all oscilloscope music though. There's plenty of cool things you can do without one. I'd take your preamp, plug it in, and see what happens. It might look cool already!
I have never personally done the vectrex mod, but here's a link to a guide that walks you through it. It's more or less a similar set up once you've modded the vectrex; use an audio interface to send a dc coupled audio signal from your computer to the vectrex. users.sussex.ac.uk/~ad207/adweb/assets/vectrexminijackinputmod2014.pdf
![HOW TO OSCILLOSCOPE MUSIC [Looma's Oscilloscope, Jerobeam Fenderson, C.Allen]](http://i.ytimg.com/vi/UfwbzTajc14/mqdefault.jpg)
Need help troubleshooting? Here's some places to ask for help!
forum.oscilloscopemusic.com
www.reddit.com/r/oscilloscopemusic/
discord.com/invite/wJY7cRbwyz
Great video :) will be using this as my default link to send to people that ask!
Also even taught me some new things like making sure my DAC is turned up as much as possible to make the image clearer on the scopen
In addition to this most if not all digital scopes have this function too.
Sadly my old Tektronix analog scope went up in smoke some months ago and I found a cheap and "broken" digital scope I fixed and now I can finally try oscillioscope music.
Yeah, digital scopes can do this too! It'll just take some extra setup that I didn't cover in this video. If the desire is to have that sweet green phosphor glow though, analog scopes are pretty much your only option. It mostly depends on what one wants to do.
There seems to be some confusion. Digital scopes also used to have phosphor. So there is a whole range of digital scopes out there that can both reproduce lissajous curves and do so using electrons on phosphor. My personal scope is a hybrid one. That means it's an analog scope with digital capabilities. The main difference between digital and analog modes as far as I'm concerned is that the digital mode has an extra layer of processing that allows for very precise analysis and tracking. When you remove that layer of processing, the resulting dot or signal becomes noticeably unstable and noisy. This is an inherent property of analog systems. I think I've heard it being referred to as bare electron beam on phosphor. However, even with digital processing, there is no doubt still electron beam on phosphor, you're just not seeing the electrons interacting and dancing with the input signal any more.
What this means is indeed that true lissajous is impossible using digital signals. It's an inherently analog tool. All the scope does is tilt the electron beam in response to an input voltage. The digital counterpart, however, calculates the curve's positions on a cartesian plane, and then attempts to draw the beam there.
7:30 "which is definitely beyond the scope of this video" 😂
i knew this would be the first thing i saw down here lmao
BEAUTIFUL VIDEO THANK YIU FOR THIS
What are those adapters called you used for the cables? Thanks!
I mention them at 4:30. One of the places you can find the adaptors is here: www.rontechusa.com/copy-of-bnc-male-to-rca-jack-adapter/ There's also links to pretty much everything in the description.
I’m not understanding how u wen from dots to squares?? Please explain more thoroughly.. are u playing a frequency, simply change the voltage, etc.? So confused
Can you still play audio through external speakers while plugged into the oscilloscope at the same time?
@@tracelawson1367 100%. When I perform, I use my 4x4 audio interface to give me 2 copies of the sound. 1 copy for the scope, and 1 copy for the speakers. If you have an audio interface with more outputs, you can get more copies. If you had a 2x6 for example, you would have 3 copies, giving you 1 for a set of speakers and 2 scopes.
yes, i do that with a mono amplifier and a single speaker, i do a "mix to mono" network that is just two resistors of like 10 kiloohms that connect to the inner conductors of the audio cables and then the two resistors at the other side of em join in one point and go to the amplifier ("Y" connection), ground is all common and not connected to the network... alternatively you can simply tap onto the two inner conductors of the RCAs and put a stereo amplifier with two speakers
Which scope are you using in this video
And another question again sorry, you said it’s able to hook up directly to the cd player through the adapter + rca cable, so it will be able show music frequency’s and etc?
2:10
Everyone's setup will be slightly different. A common output for cd players is a 3.5mm aka 1/8in cable. Assuming that is what your situation is, a 1/8in to stereo RCA splitter would work. You would also need an RCA to BNC adapter to get the RCA cables to connect to the scopes BNC inputs.
@@ericlennartson Thanks for the reply,This will help a lot, since this video wasn’t released recently!!
I bought everything. I purchased a motu m2 for my interface. When I get the scope going only thing that appears is a dot on the screen. And when the sound begins to play it just turns into a vertical line. Messing with the focus doesn’t make the image appear any better unfortunately
Sorry to hear that you're having some trouble. Oscilloscopes are pretty complicated machines, and I'm not much of a technician, so there's not much I can do to help you out unfortunately. You might have better luck talking to people who are more knowledgable with trouble shooting this sort of thing. You can try asking on the oscilloscope music subreddit. www.reddit.com/r/oscilloscopemusic/comments/14hkki6/only_producing_vertical_line_after_connecting/ Another place to try would be the discord. discord.gg/wJY7cRbwyz
Hello, are all DACs DC-coupled ? The price ranges varies from a few dozen euro/dollars to thousands. If I'm more of a hobby 'scoper than an audiophile.
Most dacs are not dc coupled. Usually this is a feature that people don't care about, so manufacturers don't often include it. I recommend getting an audio interface as that makes things a bit easier to deal with in the long run, but there's also a video explaining a ~ $10 solution if you have a little bit of soldering know how. th-cam.com/video/ZUJqwt6ZIYU/w-d-xo.html
@@ericlennartson Thanks for the input. I finally chipped in a couple of euros for a raspberry pi hat. not sure it's DC coupled either but the output looks much better than a computer sound card. Will dig more into it!
I'm using the "Oscilloscope!" software and I'm having the image cantering issue from using an AC interface. I'm not sure how to fix this as I'm not using a DAC, and I am giving the program the raw file as well as trying streaming the audio live. I have messed with all the settings to get a clear image but it hasn't prevented the dots from automatically cantering. Any suggestions?
Trying to troubleshoot from the yt comments section is always tricky, but I'll do my best.
The first thing that comes to mind is that there may be a high pass filter somewhere in your audio chain. (this is basically all AC coupling really is.) I'd start from the beginning of the chain and slowly step through it, looking for any settings that may be in your software to disable anything that is modifying the audio. I'm unsure of the OS being used, or how the audio is being routed, but I do believe it's possible to play a file directly from the "Oscilloscope!" app. If it's still got issues when playing directly from the app, then there may be an issue with the audio file itself.
The other thing to check is that a hifi lossless audio file is being used. (Something like a .wav). Other lossy file types will compress the data and have pretty heavy impact on the image. You can't just convert an mp3 into a wav either, since once the data has been compressed, you can't recover it. (thus we call it a lossy file type).
Troubleshooting can be frustrating, but there's plenty of friendly people in these communities, you can also ask for help!
forum.oscilloscopemusic.com
www.reddit.com/r/oscilloscopemusic/
discord.com/invite/wJY7cRbwyz
How would I dc couple music from a preamp?
I'm not entirely sure what your setup is, so it's a little tough for me to say exactly.
The sound needs to be dc coupled all the way through the signal chain; or at the very least from the point in which an offset is desired. So for a preamp, if the signal going into it is dc coupled, and the preamp itself is also dc coupled, then it should work.
Generally speaking, for most musical uses having a dc offset is not desirable, so finding equipment that allows for this can be tricky to find sometimes.
You don't necessarily need a dc coupled signal for all oscilloscope music though. There's plenty of cool things you can do without one. I'd take your preamp, plug it in, and see what happens. It might look cool already!
Do you connect the usb-c audio interface into something ?
The audio interface is connected to your computer. It's what allows you to get the sounds from your computer into the scope.
if i have a vectrex how could i do this?
I have never personally done the vectrex mod, but here's a link to a guide that walks you through it. It's more or less a similar set up once you've modded the vectrex; use an audio interface to send a dc coupled audio signal from your computer to the vectrex. users.sussex.ac.uk/~ad207/adweb/assets/vectrexminijackinputmod2014.pdf