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 <[email protected]>: > 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 > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > >
interpolation.pd
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