[Csnd] question about active

[Csnd] question about active

Date	2018-04-14 03:10
From	Dave Seidel
Subject	[Csnd] question about active
	It seems that the "active" opcode does not distinguish between playing instruments whose numbers have the same base number but different fractional parts. For example, given instrument 23 with instances 23.001 and 23.002, if instance 23.001 is playing, active(23.002) returns 1, so apparently active() sees them both as instances of 23. But I need to distinguish between them. Is there any way to know if 23.002 is playing vs. 23.001? - Dave Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2018-04-14 11:15
From	joachim heintz
Subject	Re: [Csnd] question about active
	just in a hurry: you could do something like this: gkActive23[] init 1000 instr 23 ;get fractional part iFrac = frac(p1) ;write 1 at start of the instrument in the gkActiv23 array if timeinstk() == 1 then gkActive23[round(frac(p1)1000)] = 1 endif ;write 0 at end if release:k() == 1 then gkActive23[round(frac(p1)1000)] = 0 endif endin in another instrument you can ask about the index / instance. joachim On 14/04/18 04:10, Dave Seidel wrote: > It seems that the "active" opcode does not distinguish between playing > instruments whose numbers have the same base number but different > fractional parts. For example, given instrument 23 with instances 23.001 > and 23.002, if instance 23.001 is playing, active(23.002) returns 1, so > apparently active() sees them both as instances of 23. But I need to > distinguish between them. Is there any way to know if 23.002 is playing > vs. 23.001? > > - Dave > Csound mailing list Csound@listserv.heanet.ie > > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to > https://github.com/csound/csound/issues Discussions of bugs and features > can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2018-04-14 12:55
From	Dave Seidel
Subject	Re: [Csnd] question about active
	Thanks, Joachim, I think that would work, though in my particular particular case the release part would have to be a bit different. This is a MIDI-triggered instrument that starts other instruments, and the feature I'm trying to work out is to make it "sticky". In other words, press a key to start a note, and the note continues (past the normal key release) until the key is pressed again. This wasn't part of my original plan for the piece, but I need to be able to hold notes for a long time, and unfortunately I've found that if I do that the usual way (by holding down a key), it tends to provoke the tendinitis in my elbow -- I did this last weekend and have been paying the price since then. In any case, thanks much for the practical idea, which I think is definitely adaptable to my project with slightly different logic for the release/re-trigger. If I was in some other language such as Python, I'd probably use a dictionary/hash instead of a numerically indexed array, but there are always trade-offs (space vs. speed, etc.). (I know I could use embedded Python or Lua, but I don't think it's worth it just for the sake of using a different data structure.) - Dave On Sat, Apr 14, 2018 at 6:15 AM, joachim heintz <jh@joachimheintz.de> wrote: just in a hurry: you could do something like this: gkActive23[] init 1000 instr 23 ;get fractional part iFrac = frac(p1) ;write 1 at start of the instrument in the gkActiv23 array if timeinstk() == 1 then gkActive23[round(frac(p1)1000)] = 1 endif ;write 0 at end if release:k() == 1 then gkActive23[round(frac(p1)1000)] = 0 endif endin in another instrument you can ask about the index / instance. joachim On 14/04/18 04:10, Dave Seidel wrote: It seems that the "active" opcode does not distinguish between playing instruments whose numbers have the same base number but different fractional parts. For example, given instrument 23 with instances 23.001 and 23.002, if instance 23.001 is playing, active(23.002) returns 1, so apparently active() sees them both as instances of 23. But I need to distinguish between them. Is there any way to know if 23.002 is playing vs. 23.001? - Dave Csound mailing list Csound@listserv.heanet.ie <mailto:Csound@listserv.heanet.ie> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here -- http://mysterybear.net https://soundcloud.com/mysterybear https://mysterybear.bandcamp.com http://recordings.irritablehedgehog.com/album/dave-seidel-60-hz Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2018-04-14 13:31
From	thorin kerr
Subject	Re: [Csnd] question about active
	There's an ActiveFrac udo in Iain McCurdy's collection. http://iainmccurdy.org/csound.html Thorin On Sat, 14 Apr. 2018, 12:10 pm Dave Seidel, <dave.seidel@gmail.com> wrote: It seems that the "active" opcode does not distinguish between playing instruments whose numbers have the same base number but different fractional parts. For example, given instrument 23 with instances 23.001 and 23.002, if instance 23.001 is playing, active(23.002) returns 1, so apparently active() sees them both as instances of 23. But I need to distinguish between them. Is there any way to know if 23.002 is playing vs. 23.001? - Dave Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2018-04-14 13:38
From	Dave Seidel
Subject	Re: [Csnd] question about active
	Aha, thanks Thorin! That looks like a nice encapsulation of essentially the same concept that Joachim proposed. Should be adaptable to my situation. On Sat, Apr 14, 2018 at 8:31 AM, thorin kerr <thorin.kerr@gmail.com> wrote: There's an ActiveFrac udo in Iain McCurdy's collection. http://iainmccurdy.org/csound.html Thorin On Sat, 14 Apr. 2018, 12:10 pm Dave Seidel, <dave.seidel@gmail.com> wrote: It seems that the "active" opcode does not distinguish between playing instruments whose numbers have the same base number but different fractional parts. For example, given instrument 23 with instances 23.001 and 23.002, if instance 23.001 is playing, active(23.002) returns 1, so apparently active() sees them both as instances of 23. But I need to distinguish between them. Is there any way to know if 23.002 is playing vs. 23.001? - Dave Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here -- http://mysterybear.net https://soundcloud.com/mysterybear https://mysterybear.bandcamp.com http://recordings.irritablehedgehog.com/album/dave-seidel-60-hz Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here