I'm trying to draw a waveform to an array using the fourier synthesis
[;ARRAYNAME sinesum ( message box, then normalize it, and then send the normalized array to another array. What would be the best way to transfer a normalized array to another array in pure data?

thanks in advance!

Hi,

I don't know if there is an easier (or automatic) way to do this, but what about this solution here?

patch.pd

Take care,
Gilberto

that worked wonderful, thank you!

@gsagostinho I've been trying to modify your patch to only copy a certain portion of an array and am having trouble. Here's a screenshot:

I honestly can't figure out where I am going wrong. The third inlet of [counter] sets the min value, and [counter] should be outputting the total amount of samples to be read starting from the initial value I provide. Instead the $0-array is always copying from the beginning. Any ideas?

Here's the patch with a test sample:
patch.zip

Hi,

Here is the solution to your problem:

patch.pd

This was a tricky one to spot, and I corrected two things in your patch. The first was not really necessary, but looks better. You were feeding values with decimal point to both [until] and [counter], but they do convert them to integer before processing. But that means that the numbers you were seeing as total samples and start position were not really spot on, so that's why I added those two [int].

But the main problem was that you were starting to write $0-array at the position start_pos instead of the start of the array (that is, position 0). By subtracting the start_pos, you are able to write the $0-array from it's initial position, thus avoiding any problems.

I hope this helps. Take care,
Gilberto

@gsagostinho said:

But the main problem was that you were starting to write $0-array at the position start_pos instead of the start of the array (that is, position 0). By subtracting the start_pos, you are able to write the $0-array from it's initial position, thus avoiding any problems.

That was exactly it. Thank you!

For anyone interested I found a quicker way to code this. Use [tab_copy] from iem_tab. Note: I am only able to call this object when I give it two arguments (original array and the one to copy to). Here's an example;

This may only work in mono as I don't know if you can add multiple " destination" arguments, although I supposed you could just daisy chain a few **[tab-copy]**s together using the outlet to feed into other [tab_copys].

Patch: tab-copy-example.pd

@rjp9 thanks for sharing this, I was not aware of [iem_tab/tab_copy], that is a very handy object! Take care, Gilberto

Also, William Brent's [tabletool]

http://williambrent.conflations.com/pages/research.html