> I'm not sure why the other patches don't work but this does. I got it, you'd need to clear the other delay buffers as well, not the feedback only!
so we can do this with fexpr~ for up half the block size, we could expand this limit with delay lines, but if we want to do it with delay lines, we have to clean the delay buffers somehow *Now, can you do that in pd?* 2015-12-08 15:54 GMT-02:00 Alexandre Torres Porres <[email protected]>: > I just wish we could make it work over the half block limit, and I'm not > sure why the other patches don't work but this does. > > 2015-12-08 15:53 GMT-02:00 Alexandre Torres Porres <[email protected]>: > >> here's a better patch >> >> 2015-12-08 15:44 GMT-02:00 Alexandre Torres Porres <[email protected]>: >> >>> I've made it work with this design in fexpr, but it's only good up to >>> half the block size >>> >>> >>> 2015-12-08 15:21 GMT-02:00 Alexandre Torres Porres <[email protected]>: >>> >>>> As I say in the attached patch; problem is that whenever you change the >>>> number of samples without clearing or clearing the filter, it goes crazy... >>>> >>>> not sure how to fix this. >>>> >>>> cheers >>>> >>>> >>>> 2015-12-08 10:40 GMT-02:00 Christof Ressi <[email protected]>: >>>> >>>>> the filter is working perfectly well for me. send me your testing >>>>> patch. >>>>> >>>>> >>>>> >>>>> Gesendet: Dienstag, 08. Dezember 2015 um 13:36 Uhr >>>>> Von: "Alexandre Torres Porres" <[email protected]> >>>>> An: "Christof Ressi" <[email protected]> >>>>> Cc: "[email protected]" <[email protected]> >>>>> Betreff: Re: Re: Re: [PD] Moving Sum object? >>>>> >>>>> not sure this is working either, I'm getting negative values when >>>>> testing it with count~ (only positive values) >>>>> >>>>> 2015-12-08 10:30 GMT-02:00 Christof Ressi <[email protected]>:It >>>>> certainly is and I have no idea how that happened :-D. but it has no >>>>> effect >>>>> whatsoever. just delete the connection. >>>>> >>>>> >>>>> Gesendet: Dienstag, 08. Dezember 2015 um 13:20 Uhr >>>>> Von: "Alexandre Torres Porres" <[email protected][[email protected]]> >>>>> An: "Christof Ressi" <[email protected][[email protected]]> >>>>> Cc: "[email protected][[email protected]]" <[email protected] >>>>> [[email protected]]> >>>>> Betreff: Re: Re: [PD] Moving Sum object? >>>>> >>>>> what was the purpose of the output from the max object into rpole~ in >>>>> your patch? that's a bug, right? >>>>> >>>>> cheers >>>>> >>>>> 2015-12-08 9:50 GMT-02:00 Christof Ressi <[email protected][ >>>>> [email protected]]>: >>>>> >>>>> Or are you talking about a object that outputs the sum as a message? >>>>> In that case just use [cmavg~] or [maverage~] with [snapshot~]. If you >>>>> just >>>>> want the sum of a signal vector, there are some objects in zexy that will >>>>> do the job, like [avg~] or [pack~]+[sum] >>>>> >>>>> >>>>> Gesendet: Dienstag, 08. Dezember 2015 um 12:41 Uhr >>>>> Von: "Christof Ressi" <[email protected][[email protected]][ >>>>> [email protected][[email protected]]]> >>>>> >>>>> An: "Alexandre Torres Porres" <[email protected][[email protected]][ >>>>> [email protected][[email protected]]]> >>>>> Cc: "[email protected][[email protected]][[email protected][ >>>>> [email protected]]]" <[email protected][[email protected]][ >>>>> [email protected][[email protected]]]> >>>>> Betreff: Re: [PD] Moving Sum object? >>>>> >>>>> Well, a linear moving average filter is just something that sums a >>>>> series of samples. If you don't want the average but rather the true sum, >>>>> either multiply the output by the number of samples or take my abstraction >>>>> and get rid of the [/~] object. >>>>> >>>>> >>>>> Gesendet: Dienstag, 08. Dezember 2015 um 12:21 Uhr >>>>> Von: "Alexandre Torres Porres" <[email protected][[email protected]][ >>>>> [email protected][[email protected]]]> >>>>> An: "Christof Ressi" <[email protected][[email protected]][ >>>>> [email protected][[email protected]]]> >>>>> Cc: "Matt Barber" <[email protected][[email protected]][ >>>>> [email protected][[email protected]]]>, "[email protected][ >>>>> [email protected]][[email protected][[email protected]]]" < >>>>> [email protected][[email protected]][[email protected][ >>>>> [email protected]]]> >>>>> Betreff: Re: Re: [PD] Moving Sum object? >>>>> >>>>> cool guys, but i was asking for an average "sum" object :) >>>>> >>>>> 2015-12-08 9:19 GMT-02:00 Christof Ressi <[email protected][ >>>>> [email protected]]>:Hey Matt, >>>>> >>>>> there's no need for the feedback path (and therefore no [block~ 1] ;-)) >>>>> >>>>> Just use the following formula: >>>>> >>>>> y[n] = (y[n-1] - x[n-k])/k >>>>> >>>>> where k is the number of samples to be averaged (must be at least 1). >>>>> see the patch I sent to Alex in my last mail. >>>>> it uses [rpole~ 1] for the y[n-1] part and [z~ k] for the x[n-k] part >>>>> (you can replace the latter one with a [delwrite~] [delread~] pair to make >>>>> it purely vanilla). >>>>> >>>>> The funny thing about linear moving average filters is, that although >>>>> it can be implemented as a recursive filter (like in both our patches), it >>>>> is still a FIR filter (and therefore it defeats the notion that recursive >>>>> filters are always IIR filters). The impulse response is just a >>>>> rectangular >>>>> pulse and therefore finite. >>>>> >>>>> >>>>> >>>>> Gesendet: Dienstag, 08. Dezember 2015 um 07:13 Uhr >>>>> Von: "Matt Barber" <[email protected][[email protected]]> >>>>> An: "Alexandre Torres Porres" <[email protected][[email protected]]> >>>>> Cc: "[email protected][[email protected]]" <[email protected] >>>>> [[email protected]]> >>>>> Betreff: Re: [PD] Moving Sum object? >>>>> >>>>> Something like this? Almost completely untestsed. :D >>>>> >>>>> On Tue, Dec 8, 2015 at 12:20 AM, Alexandre Torres Porres < >>>>> [email protected][[email protected]]> wrote: >>>>> >>>>> Talking about averages I wonder if we have an object that sums (in a >>>>> moving average fashion) a series of samples >>>>> >>>>> cheers >>>>> _______________________________________________ >>>>> [email protected][[email protected]][[email protected][ >>>>> [email protected]]] mailing list >>>>> UNSUBSCRIBE and account-management -> >>>>> http://lists.puredata.info/listinfo/pd-list[http://lists.puredata.info/listinfo/pd-list][http://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D][http://lists.puredata.info/listinfo/pd-list[http://lists.puredata.info/listinfo/pd-list][http://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D]] >>>>> <http://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5Bhttp://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5D%5Bhttp://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5Bhttp://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5D%5D> >>>>> _______________________________________________ [email protected][ >>>>> [email protected]] mailing list UNSUBSCRIBE and account-management >>>>> -> >>>>> http://lists.puredata.info/listinfo/pd-list[http://lists.puredata.info/listinfo/pd-list][http://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D]_______________________________________________[http://lists.puredata.info/listinfo/pd-list[http://lists.puredata.info/listinfo/pd-list][http://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D]_______________________________________________] >>>>> <http://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5Bhttp://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5D_______________________________________________%5Bhttp://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5Bhttp://lists.puredata.info/listinfo/pd-list%5Bhttp://lists.puredata.info/listinfo/pd-list%5D%5D_______________________________________________%5D> >>>>> [email protected][[email protected][[email protected]]] >>>>> mailing list UNSUBSCRIBE and account-management -> >>>>> http://lists.puredata.info/listinfo/pd-list[http://lists.puredata.info/listinfo/pd-list][http://lists.puredata.info/listinfo/pd-list[http://lists.puredata.info/listinfo/pd-list]] >>>>> >>>> >>>> >>> >> >
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