Hey all,

I'm working on a project where I'm taking accelerometer/gyroscope data from arduino into PD (vanilla) and using those data points to modulate sound parameters. For example, I may take acceleration along an X axis and apply that to a change in frequency or amplitude.

The accelerometer is attached to my hand and records a constant stream of my movements in space, which leads to a large degree of modulation of the sound parameter.

One issue I am having, is that this is creating a lot of clicks! I guess because I have a constant stream of rapidly changing data inputs, I'm frequently getting jolts in the movements. At the same time, I want to preserve that variability / intricacy coming from the constant data stream, but somehow without creating the clicks.

I've attached a patch that I'm experimenting with, would be great to get some advice on how I might adjust something like this to moderate the clicking

Best
Jess

@Jess use [line~] instead of [sig~], and anywhere a message-rate input goes into a signal inlet. I usually use [pack f 5] or [pack f 10] into [line~]
also delete the arguments to your [*~ ] boxes and use [line~] for the right inlet of those as well. If you need defaults, just send them to [line~] when the patch loads with [loadbang]

the clicks are a result of changing parameters too quickly. control-rate going into the [osc~] probably isn't too noticeable but if you suddenly multiply by a different value than the previous sample you'll get a click due to the sudden discontinuity.

edit: also, if you decide not to use [line~] to go into [osc~] (bc frequency discontinuities might not create a noticeable click) I would add an argument of 0 to the [+~ ] above the 2nd [osc~] and swap the stuff going into its inlets. Then the 2nd inlet will be message rate which will be a little more efficient.

edit2: changing delay times without artifacts can be tricky generally. With [line~] you might get a zipper/pitch-change effect, but just jumping to a different spot in the buffer will create a click.

Great, thanks Seb, I'll try these out!

Best
Jess