I am rather new to Pd, but I am in love with it. This is an excellent forum, too. so helpful.

So I am trying to use my iphone as a MIDI controller. I am able to deal with accelerometer data to the extent that I can control a simple synth with all three dimensions of movement. The problem is that (perhaps in my old age) the data is VERY shaky because the device is obviously not perfectly still in any given moment.

What is the best way to temper such a thing?

Try running the data through [mean_n], which gives a running average. A running average acts as a lowpass filter, so fast, shaky movements will be smoothed out a bit. The higher the argument you give, the smoother it will be, but there will also be a longer reaction time.

@Maelstorm said:

Try running the data through [mean_n], which gives a running average. A running average acts as a lowpass filter, so fast, shaky movements will be smoothed out a bit. The higher the argument you give, the smoother it will be, but there will also be a longer reaction time.

Thank you, this is helpful!