Fiddle~ // AMPLITUDE

Reply to Fiddle~ // AMPLITUDE on Thu, 19 Nov 2009 17:17:10 GMT

yameley — Thu, 19 Nov 2009 17:17:10 GMT

Hello,

I'm using fiddle~ for a project and I need the amplitude of the sounds I make.
I'm actually singing and doing some graphics in processing.

The values I obtain from the Amplitude are too unstable, they change too fast.
So I need to stable those values before I send them to processing. Maybe to have a value if there is a significant chance in the amplitude. And even when it's silent it's still getting values that I don't need.

Does anybody understand what I need.

Any ideas?

Thanx A lot

Reply to Fiddle~ // AMPLITUDE on Thu, 19 Nov 2009 23:12:58 GMT

domien — Thu, 19 Nov 2009 23:12:58 GMT

I would propose a combination of a number of objects:

use moses to create a treshold
try to round to 2 decimal digits ( using multiplication, int and division)
finally smooth things out with a line

Hope this helps

Reply to Fiddle~ // AMPLITUDE on Mon, 23 Nov 2009 17:36:04 GMT

yameley — Mon, 23 Nov 2009 17:36:04 GMT

Hello, thanks for the reply.
I already did the moses, and used division, but I don't know hoe to usea a line~ here.

Reply to Fiddle~ // AMPLITUDE on Tue, 24 Nov 2009 08:36:13 GMT

domien — Tue, 24 Nov 2009 08:36:13 GMT

Just send the stream of numbers you're having (probably after thresh/rounding) to a [line] object (if you're dealing with an audiostream use [line~] or [vline~]) like this:

where the [lag\ numberbox determines the smoothing time. It's not really perfect to catch snappy transients. If you want that you could also investigate the [bonk~]
object which tries to detect beats.

Reply to Fiddle~ // AMPLITUDE on Sun, 13 Dec 2009 19:01:55 GMT

dack — Sun, 13 Dec 2009 19:01:55 GMT

you could also have 2 different "lag" values - one for when the amplitude is higher than the current value, and one for when it is lower. Just use another moses to select between the 2. That way you could have a fast attack and slow decay.

Reply to Fiddle~ // AMPLITUDE on Sat, 02 Jan 2010 16:19:44 GMT

arif — Sat, 02 Jan 2010 16:19:44 GMT

http://puredata.hurleur.com/sujet-2252-bang-only-changed