hey, I tried making mine a bit more understandable

it works with any table size. Just set the size as the argument in the [table] object.

This means it works with [tabosc4~] if you'd like, and it makes the extra 3 guard points correctively.

The guard points thing and interpolation is a bit hard to grasp at first. Say you have 0-96 points, you need extra 3 points (1 in the beggining, 2 at the end) so it goes now from 0-99 and your original indexes are now from 1 to 97. The first point (0) needs to be equal to the last one (97) and then the extra two points (98-99) must be equal to (1-2).

What my patch does is get the table size and consider it has these extra points, so it writes the table values like sinesum does.

In the example I'm doing a hann window and using it as an envelope, but you could do whatever.

cheers


2014-04-10 8:45 GMT-03:00 IOhannes m zmölnig <zmoelnig@iem.at>:
On 04/09/2014 09:46 AM, IOhannes m zmoelnig wrote:
> [sin]            |

ah, there is no [sin] object, use [cos] instead.

anyhow, the patch was not really meant to be be copied to your Pd
instance, but to show how easy it is to do what you want.

it basically consists of two three parts:
#1 generate numbers 0..1023; i'm using [until] and a counter for this.
for simplicity, the counter is not reset at the beginning, so it will
only generate the correct numbers once (the next time you click on
[1024(, it will instead generate numbers 1024..2047); adding a reset is
simple enough.

#2 normalize the numbers 0..1023 to something more useful, e.g. to
0..2pi (my code is bogus here, as it incorporates a deg2rad conversion
without ever seeing deg values) and use these values as input to a
function (in my example sin(x)+0.1*random())

#3 write the generated value into the table at the given index (the
value from the counter)


fgmrdsa
IOhannes


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