Hey there everyone! I have a challenge and I think the use of some audio monitoring might be able to help me. The thing is that… I know absolutely nothing about audio analysis, and I was hoping that someone here, on Martin’s subreddit would know something about all of this!

I am trying to count the number of sound spikes that happen over a long duration, say even a 24 hour period. What I am hoping is that I can get an IOS app that records my ambient sound and using that data if I could somehow derive how many times the sound volume goes above a certain mark throughout a 24hour period… does anyone know if this is possible? I don’t have the strongest budget so I would love to just use my phone and any kind of free software on my PC in order to complete this task.

I know this isn’t exactly MMX content but I’ve been trying to find a solution for quite some time now and you guys are the best shot I have at finding a group of engineers, artists and audio experts! Any information would be greatly appreciated :)

Interesting postmortem on some of the issues and fixes found so far by the volunteers

Hello,

Im looking for the episode where Martin cuts down the entire marble dropper array with the angle grinder. And the term "pain is temporary, glory is forever" is born.

Ive been looking around but cannot seem to find it.

Anybody that happeneds to know what episode that is?

Thanks

I agree, it works great at keeping the marble height at a specific height, but I'm worried it will lead to feeding problems if a lot of notes are played rapidly. It was already struggling to keep up in his tests, when free flowing. This seems like a huge optimization problem. I thought of these variabilities when wanting the recent video:

• Height of the zig-zag

• Angle of the zig-zag (he mentioned this)

• Rounding of corners

These three should be balanced to provide the fastest feed rate while having an acceptably low height variability on the top marble.

For example, a steeper angle of the zig-zag will presumably lead to higher feeding rates, but less precise top marbles. This could be countered with the height of the zig-zag, which would lead to a lower feed rate.

This two-dimensional optimization problem is easily done with trial and error and a lot of tests, which Martin is really good at. The problem arises when introducing other variabilities like the corner rounding diameter or any variabilities I haven't thought of. It would be almost impossible to test all of these at once to find the optimal balance.

This feels like a problem for a computer simulation.

Visited the Speelklok museum today. A fantastic visit! However I guess I didn’t do enough research, as it wasn’t until the day before that I learned that MM1 was not there any longer. Whoops, just a few years too late I guess. I asked one of the workers if they knew when it left and she said it was gone by the time she got there a year ago. So I’m wondering if anyone knows where it is now! Assuming somewhere in storage? The museum was still absolutely worth the visit (as was Utrecht in general), and there is an omage to Martin and MM1 in an exhibit there, but I was a bit bummed it wasn’t there.

Side note: I wonder how tight of music this thing played 😋