I'll try making pics after Easter, I'm currently nowhere near my lab.
What I was thinking is: when you monitor the waveform of the rim piezo itself, you should see distinct & sharp peaks when you hit along the hoop, but hitting the mesh head should be dampened as much as possible. IMO...
sascha
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Last Activity: Yesterday, 02:24 PM
Joined: 12-08-15
Location: Berlin, Germany
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Last edited by sascha; 04-18-19, 03:23 AM. -
Get yourself a cheap scope (sometimes you get old analog ones for a price of a pizza...) and look at the waveforms. Could be that the signal from the cone down along the plate is already making the rim vibrate enough to trigger it's piezo under some circumstances. But who knows, remotely.
We could...Leave a comment:
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I'm using PC Remote (beta) on my android phone behind the kit. It's not one of those you find on Google Play, though. Their names are misleading, a lot of apps are called PC Remote there...
It's this one actually:
https://www.appsapk.com/pc-remote-app/
It needs a server app...Leave a comment:
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I don't think that this is the right appoach. I'm pretty sure if you'd give yourself a push and jam with actual people (while having a click in the ear), it would bring you up to a whole new level.
Me, I've been a bass player for ~25 years until I decided to start (e-)drumming 4 years ago, after...Last edited by sascha; 04-02-19, 05:09 AM.Leave a comment:
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The bigger the piezo the higher the potential voltage swing, but also the lower the frequency that can be sensed. It depends on the application if you want that. Often small piezos are easier for tracking the waveform because no additional highpass might be needed, and sometimes checking for the first...Leave a comment:
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That's why I keep on saying on this forum that e-drum DIY without using a scope is hit & miss. I have a EE back ground, and I'm a DSP engineer during the day, so I have the tools right at hand, but it's sometimes hard for me when others try walking around blindly...
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Piezos are best for slew-rate detection, to see if there's an impulse at all and - partly - how it looks like. It's not the best choice for detecting pressure changes over time, and often attempts at such tend to break the device. It's a relatively fragile piece of crystal. But it spits out voltage...Last edited by sascha; 03-25-19, 03:02 AM.Leave a comment:
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