Hi,

I am new to pd and having difficulty converting signal from output of {adc~} to a control input of {lop~}. Coming out of the adc~ is a signal ranging from 0-1 so I multiplied that by 200 thus my range is 0-200, however at this point it is still a signal not a control. what is the easiest way to convert to a control line using only libpd (cannot use unsig~)?

Thanks,
Brock

use [snapshot~] and [bang~]. Still, I think you'll get clicks.

Note: it's not helpful when people post the same thing twice, in two different places of this forum. Please post only once, people will see it.

Thank you for the quick reply. Here is my patch I added as you suggested, it still does not work. I have tested pots to control frequency so I know that hardware is connected properly. However the below patch still does not let me adjust the hip and lop.

Also sorry for double post I realized that I had placed in wrong section. I will delete the other one.

Thanks,
Brock

_main.pd

3 things:

1. The signal outlet from the [*~ ] object should go into the [snapshot~] , not the [metro]. [metro] is a control level object and can't take signal input. [snapshot~] takes a signal for its source and a control level "bang" message to trigger it, both in the same input.

2. There's no need to use [bang~] and metro at the same time. [bang~] is essentially a metro already, firing once every DSP cycle, which is faster than [metro] can manage. So either use [bang~] to send a "bang" message at the highest possible rate, or use [metro] to send a "bang" message at any other rate.

3. A low-pass filter plus a high-pass filter is equivalent to a band-pass filter. There are several band-pass filters in PD to choose from, including [bp~] and [vcf~]. [vcf~] has a signal input for the centre frequency, so if you use this, you won't need to worry about converting signal to control at all.