velocity sensitivity - how does it work?

[midifidler]

You could get basic velocity info from timing the bounce of the contacts of the arcade buttons, but you would have to scan very fast to get reliable results, and it would still be pretty crap.

You either need to use Piezo, or rubberised contact style buttons

[MickoLX]

Are you trying to modify an existing controller or is this a new DIY project? piezo buzzers are cheap, make very good velocity sensitive switches and their allot easyer to impliment than two switches along with a complex algorithem on a PIC.

Thinking about it i bet you could mount a small piezo in the underside of an archade button then you would have the appearance and playability of an arcade button with the velocity of a drum pad. Hmm i like the idea of that ill order some parts and have a play.

^^^^
I'd love to see your results, video your experiment??

I put a piezo in a neoprene drum practice pad and hooked it up to an drum sound module and it worked fine, i didn't have to hit very hard to get a 127 velocity reading out of it though and it would give reading if i tapped the desk it was sitting on.... i also did not have to mod the module.

how would the piezo signal be transmitted? along the same signal cable as +/- as the button??

[diezdiazgiant]

Are you trying to modify an existing controller or is this a new DIY project? piezo buzzers are cheap, make very good velocity sensitive switches and their allot easyer to impliment than two switches along with a complex algorithem on a PIC.

Thinking about it i bet you could mount a small piezo in the underside of an archade button then you would have the appearance and playability of an arcade button with the velocity of a drum pad. Hmm i like the idea of that ill order some parts and have a play.

I wanna do a mod first. I was thinking of replacing the keys on my remote sl 25.
I'm thinking if I keep the rubber contacts I could make a new key bed with shorter keys and a round raised arcade button like surface. Just have that part coming out from under the new faceplate of the casing. Your idea sounds intriguing tho, would that work with a mod or is that only if you make your own controller? Keep us posted

[888noxxi]

the mpd 16 doesnt have basic contact switches. All the arcade button is doing is completing a circuit. The mpd pads are detecting velocity and sending out different midi data depending on how hard you hit the pads. If I remember correctly, they act similarly to a potentiometer.

its nothing like a potentiometer, it is 2 desperate switch circuits, with a short distance between each one closing. the time it takes from the first closing to the second is the time, distance/ time = velocity

[jackmattson]

I wanna do a mod first. I was thinking of replacing the keys on my remote sl 25.
I'm thinking if I keep the rubber contacts I could make a new key bed with shorter keys and a round raised arcade button like surface. Just have that part coming out from under the new faceplate of the casing. Your idea sounds intriguing tho, would that work with a mod or is that only if you make your own controller? Keep us posted

Any updates?

[jackmattson]

Any Updates?