Pd-list March 1998

pd-list@lists.iem.at

16 participants
43 discussions

PD <-> Common Music interface?
by Larry Troxler 23 Mar '98

23 Mar '98

Does anyone else on this list also Rick Taube's Common Music? Have you thought, like I have, that it would be usefull to have PD be able to send messages for evaluation in CM, and have the results somehow returned to PD? Any ideas on the best way to do this? I can think of several ways of doing it, each of which is probably over my ability and patience to implement. But maybe there is an easy way to do this that I haven't thought of. With my limited knowledge in both Lisp and network programming, the most obvious approach to me is to use the netsend and netreceive PD objects to communicate with a Lisp listener that is bound to a socket. I see, at least in Allegro, there are socket-stream CLOS objects implemented. Any comments, suggestions, etc, including what the @#$# is Common Music, or why the @#%#@ do I want to do that, etc, are appreciated. Larry -- Larry Troxler -- lt(a)westnet.com -- Patterson, NY USA --

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Re: symbols versus strings ? or no strings
by Miller Puckette 22 Mar '98

22 Mar '98

FTS does have a String abstraction which is distinct from symbols. Opcode Max, ISPW Max, and Pd have only symbols. Someday I might work on adding a true string feature to Pd but don't hold your breath... The trouble with symbols is that their storage space is never freed, so you shouldn't go around generating thousands of different symbols. cheers Miller

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symbols versus strings ? or no strings
by Winfried Ritsch 20 Mar '98

20 Mar '98

Looking at the source and ... writing externals, I have following questions: is there a concept of a "string" as an atom ? in max, there is a fts_String there are among other the arg types: (... fts_Symbol argument must be of type FTS_SYM, initialized with fts_set_symbol fts_String argument must be of type FTS_STRING, initialized with fts_set_string ...)[The FTS Message System Programmer Guide] in pd I see nothing simular. How is this handled in pd ? - I would prefer to throw the concept of strings, because they always got mixed up with symbols when routing etc... and there is no need for differentiate this, exept symbols has to be stored in symbol tables (hash tables), but anyway if text element appears I can handle them like strings in my objects. mfg winfried --- DI Winfried Ritsch - ritsch(a)iem.mhsg.ac.at --- INSTITUT FUER ELEKTRONISCHE MUSIK- University of Music and Dramatic Art Tel. ++43-316-389-7210, Fax.++43-316-389-7008

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loop.pd mod
by Mark Danks 19 Mar '98

19 Mar '98

I just realized something about my patch. It actually counts down, not up (has to do with the recursion). The patch should be changed to the following. Later, Mark --------------- #N canvas 196 294 600 500 8; #X obj 170 155 t i i; #X obj 236 225 spigot; #X obj 165 324 print; #X msg 197 188 1; #X msg 164 105 bang; #X msg 150 187 0; #X obj 177 217 + 1; #X obj 245 291 < 20; #X obj 164 254 t i i i; #X connect 0 0 5 0; #X connect 0 1 3 0; #X connect 1 0 6 0; #X connect 3 0 6 1; #X connect 4 0 0 0; #X connect 5 0 6 0; #X connect 6 0 8 0; #X connect 7 0 1 1; #X connect 8 0 1 0; #X connect 8 1 2 0; #X connect 8 2 7 0; ------------------------- -- ------------------------------------ - Mark Danks - - mdanks(a)xaostools.com - - http://cybermed.ucsd.edu/mdanks - ------------------------------------

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Abstraction woes
by Larry Troxler 19 Mar '98

19 Mar '98

This is actually two questions disguised as one :-) First, the abstraction pasted below, seems to always come up with the second floatatom initialized to 0 instead of 1 (which it was set to when the abstraction was saved, and is indeed the value saved in the source code). By this, I mean, that when I create an object called "loop" (the name of the file is "loop.pd", an object is created with the correct number of inlets and outlets, and if I click on this object, the correct subpatch is brought up; however, the number object in the subpatch shows up as "0" instead of "1". The behavior of the abstraction is also consistent with this error. bAny ideas? Is this a known bug? (I'm at the 0.21 level). Second, all I am trying to do is to implement a looping mechanism - an object that counts from x to y, transmitting the integers from x to y consecutively on its outlet.!! I have a feeling there has to be an easier way! Larry -- Larry Troxler -- lt(a)westnet.com -- Patterson, NY USA --

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archive?
by Jeff Mann 19 Mar '98

19 Mar '98

Hi, I'm new to the Pd list... is there an archive of past messages anywhere? If not, I might be able to set one up with a web interface if someone has a mailbox of the old messages. Thanks... <Jeff -- Jeff Mann - Information Consumer ___O___O__= -- > mailto:jefman@utcc.utoronto.ca || http://www.interlog.com/~jefman Visit the Art & Robotics Group site: http://www.interaccess.org/arg

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Oops, I forget to include the loop.pd abstraction!
by Larry Troxler 18 Mar '98

18 Mar '98

Sorry, in my last message, I somehow forgot this, but here is the patch I was referring to : #N canvas 0 0 324 453 loop.pd 1; #X floatatom 99 19 0; #X floatatom 23 207 1; #X msg 73 161 stop; #X msg 19 112 bang; #X obj 89 72 int 0; #X obj 84 120 ==; #X obj 83 139 select 0 1; #X obj 23 192 delay 500; #X obj 224 203 +; #X msg 99 0 bang; #X obj 12 22 moses 1; #X obj 222 239 outlet; #X obj 157 108 outlet; #X obj 12 1 inlet; #X connect 0 0 4 0; #X connect 1 0 8 0; #X connect 2 0 7 0; #X connect 3 0 7 0; #X connect 4 0 3 0; #X connect 4 0 8 1; #X connect 4 0 5 0; #X connect 4 0 12 0; #X connect 5 0 6 0; #X connect 6 1 2 0; #X connect 6 1 11 0; #X connect 7 0 1 0; #X connect 8 0 4 0; #X connect 9 0 0 0; #X connect 10 1 9 0; #X connect 10 1 5 1; #X connect 10 1 3 0; #X connect 13 0 10 0; -- Larry Troxler -- lt(a)westnet.com -- Patterson, NY USA --

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Re: Abstraction woes
by Miller Puckette 18 Mar '98

18 Mar '98

Number boxes in Pd are volatile, i.e., their values aren't saved between sessions. Arrays are the same way. In Max, the number boxes were volatile but you could set the tables to be either way. I'm not sure what the right policy is at teh moment... Miller

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Downtime at weekend
by Guenter Geiger 16 Mar '98

16 Mar '98

Hi ! Unfortunately our mail was down at the weekend. Therefor some messages weren't delivered correctly ( and again it's Larry who suffers ), but here I'm forwarding his messages: And btw. I just put a new version 0.22.2 for linux out. I have changed buffer parameters again. I am using now a fragment size of DACBLKSIZE and only the number of fragments is changed with the advance. Get it from <ftp://iem.mhsg.ac.at/pd/pd-linux-0.22.2.tar.gz> Actually a very simple ( and hopefully effective ) approach. Note that pd will start up with an advance of 13 which will transform in a 20 ms latency. This is probably too short for slower Pentiums. This value can now be adjusted with the [-audiobuf t] switch, where t is the latency time in ms. Guenter -------------------------------- Subject: File-close bug possible workaround Date: Sun, 15 Mar 1998 04:20:47 +0000 I think the file-close bug happens when attempting to close a file that uses "page" objects, where the sub-pages are closed. I've found that by opening the sub-page first, the file-close operation works. (But then things are strange after that). It may also be specifically related to the use of array in subpages, but I haven't narrowed it down to non-array subpages. Larry -- Larry Troxler -- lt(a)westnet.com -- Patterson, NY USA -- Subject: File-close bug possible workaround Date: Sun, 15 Mar 1998 04:20:47 +0000 I think the file-close bug happens when attempting to close a file that uses "page" objects, where the sub-pages are closed. I've found that by opening the sub-page first, the file-close operation works. (But then things are strange after that). It may also be specifically related to the use of array in subpages, but I haven't narrowed it down to non-array subpages. Larry -- Larry Troxler -- lt(a)westnet.com -- Patterson, NY USA --

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File-close bug possible workaround
by Larry Troxler 15 Mar '98

15 Mar '98

I think the file-close bug happens when attempting to close a file that uses "page" objects, where the sub-pages are closed. I've found that by opening the sub-page first, the file-close operation works. (But then things are strange after that). It may also be specifically related to the use of array in subpages, but I haven't narrowed it down to non-array subpages. Larry -- Larry Troxler -- lt(a)westnet.com -- Patterson, NY USA --

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Pd-list March 1998