[Cs-dev] rnd text incorrect

[Cs-dev] rnd text incorrect

Date	2010-07-19 20:51
From	menno
Subject	[Cs-dev] rnd text incorrect
	hi, some text in the manual regarding rnd is incorrect. rnd.csd produces the following output: instr 1: i1 = 0.974 instr 1: i1 = 0.139 and NOT like it is now: rnd at i-rate: 0.973500 rnd at k-rate: 0.139405 rnd at i-rate: 0.973500 rnd at k-rate: 0.040065 rnd at i-rate: 0.973500 rnd at k-rate: 0.412845 rnd at i-rate: 0.973500 rnd at k-rate: 0.440650 rnd at i-rate: 0.973500 rnd at k-rate: 0.663581 rnd at i-rate: 0.973500 rnd at k-rate: 0.876723 rnd at i-rate: 0.973500 rnd at k-rate: 0.302459 rnd at i-rate: 0.973500 rnd at k-rate: 0.398580 rnd at i-rate: 0.973500 rnd at k-rate: 0.448875 rnd at i-rate: 0.973500 rnd at k-rate: 0.907728 can somebody please rectify (if approved) ? Menno -- View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p1465863.html Sent from the Csound - Dev mailing list archive at Nabble.com. ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-07-20 17:27
From	Andres Cabrera
Subject	Re: [Cs-dev] rnd text incorrect
	Hi, I've just made a new example for rnd: ; Select audio/midi flags here according to platform ; Audio out Audio in -odac -iadc ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o rnd.wav -W ;;; for file output any platform ; Andres Cabrera 2010 sr = 44100 ksmps = 4410 nchnls = 1 0dbfs = 1 instr 1 ; Generate a random number from 0 to 10. irand = rnd(10) print irand endin instr 2 krand = rnd(10) printk 0, krand endin i 1 0 1 ; Generate 1 number i 1 0 1 ; Generate another number i 1 0 1 ; yet another number i 2 2 1 ; 1 second prints 9 values (kr = 10) e But I was a bit surprised by the output, as it seems the k-rate output doesn't change... SECTION 1: new alloc for instr 1: instr 1: irand = 9.735 new alloc for instr 1: instr 1: irand = 1.394 new alloc for instr 1: instr 1: irand = 7.695 midi channel 1 now using instr 1 B 0.000 .. 2.000 T 2.000 TT 2.000 M: 0.00000 new alloc for instr 2: i 2 time 2.10000: 5.25005 i 2 time 2.20000: 5.25005 i 2 time 2.30000: 5.25005 i 2 time 2.40000: 5.25005 i 2 time 2.50000: 5.25005 i 2 time 2.60000: 5.25005 i 2 time 2.70000: 5.25005 i 2 time 2.80000: 5.25005 i 2 time 2.90000: 5.25005 B 2.000 .. 3.000 T 3.000 TT 3.000 M: 0.00000 Score finished in csoundPerformKsmps(). Is this a bug in rnd? Cheers, Andrés On Mon, Jul 19, 2010 at 8:51 PM, menno wrote: > > hi, > > some text in the manual regarding rnd is incorrect. > rnd.csd produces the following output: > > instr 1: i1 = 0.974 > instr 1: i1 = 0.139 > > > and NOT like it is now: > > rnd at i-rate: 0.973500 rnd at k-rate: 0.139405 > rnd at i-rate: 0.973500 rnd at k-rate: 0.040065 > rnd at i-rate: 0.973500 rnd at k-rate: 0.412845 > rnd at i-rate: 0.973500 rnd at k-rate: 0.440650 > rnd at i-rate: 0.973500 rnd at k-rate: 0.663581 > rnd at i-rate: 0.973500 rnd at k-rate: 0.876723 > rnd at i-rate: 0.973500 rnd at k-rate: 0.302459 > rnd at i-rate: 0.973500 rnd at k-rate: 0.398580 > rnd at i-rate: 0.973500 rnd at k-rate: 0.448875 > rnd at i-rate: 0.973500 rnd at k-rate: 0.907728 > > can somebody please rectify (if approved) ? > > Menno > > -- > View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p1465863.html > Sent from the Csound - Dev mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > -- Andrés ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/l

Date	2010-07-25 18:01
From	menno
Subject	Re: [Cs-dev] rnd text incorrect
	i do not know if it is a bug, but i get the same results. Should instr 2 not produce a random number between 0 and 10? menno -- View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p2134999.html Sent from the Csound - Dev mailing list archive at Nabble.com. ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-07-25 18:09
From	Victor Lazzarini
Subject	Re: [Cs-dev] rnd text incorrect
	No, only if you seed it differently every time. With the same seed all random number generators produce the same sequence. Victor On 25 Jul 2010, at 18:01, menno wrote: > > i do not know if it is a bug, but i get the same results. Should > instr 2 not > produce a random number between 0 and 10? > > menno > > -- > View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p2134999.html > Sent from the Csound - Dev mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-07-25 18:14
From	Andres Cabrera
Subject	Re: [Cs-dev] rnd text incorrect
	Just realized the problem, doing rnd(10) is interpreted as i-rate. You must do: klimit = 10 rnd(klimit) to force rnd to be k-rate. Cheers, Andrés On Sun, Jul 25, 2010 at 6:09 PM, Victor Lazzarini wrote: > No, only if you seed it differently every time. With the same seed all > random number generators produce the same sequence. > > Victor > On 25 Jul 2010, at 18:01, menno wrote: > >> >> i do not know if it is a bug, but i get the same results. Should >> instr 2 not >> produce a random number between 0 and 10? >> >> menno >> >> -- >> View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p2134999.html >> Sent from the Csound - Dev mailing list archive at Nabble.com. >> >> ------------------------------------------------------------------------------ >> This SF.net email is sponsored by Sprint >> What will you do first with EVO, the first 4G phone? >> Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > -- Andrés ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net https://lists.sourceforge.net/li

Date	2010-07-25 18:23
From	Victor Lazzarini
Subject	Re: [Cs-dev] rnd text incorrect
	Sorry, what I should have said is (quoting the manual): "Returns a random number in a unipolar range at the rate given by the input argument." hence krand = rnd(10) and krn = 10 krand = rnd(krn) will produce different results. The latter will produce new numbers at k-rate. Victor On 25 Jul 2010, at 18:09, Victor Lazzarini wrote: > No, only if you seed it differently every time. With the same seed all > random number generators produce the same sequence. > > Victor > On 25 Jul 2010, at 18:01, menno wrote: > >> >> i do not know if it is a bug, but i get the same results. Should >> instr 2 not >> produce a random number between 0 and 10? >> >> menno >> >> -- >> View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p2134999.html >> Sent from the Csound - Dev mailing list archive at Nabble.com. >> >> ------------------------------------------------------------------------------ >> This SF.net email is sponsored by Sprint >> What will you do first with EVO, the first 4G phone? >> Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-07-25 18:25
From	Andres Cabrera
Subject	Re: [Cs-dev] rnd text incorrect
	I should remember to RTFM more often... =) Cheers, Andrés On Sun, Jul 25, 2010 at 6:23 PM, Victor Lazzarini wrote: > Sorry, what I should have said is (quoting the manual): > > "Returns a random number in a unipolar range at the rate given by the > input argument." > > hence > > krand = rnd(10) > > and > > krn = 10 > krand = rnd(krn) > > will produce different results. The latter will produce new numbers at > k-rate. > > Victor > > On 25 Jul 2010, at 18:09, Victor Lazzarini wrote: > >> No, only if you seed it differently every time. With the same seed all >> random number generators produce the same sequence. >> >> Victor >> On 25 Jul 2010, at 18:01, menno wrote: >> >>> >>> i do not know if it is a bug, but i get the same results. Should >>> instr 2 not >>> produce a random number between 0 and 10? >>> >>> menno >>> >>> -- >>> View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p2134999.html >>> Sent from the Csound - Dev mailing list archive at Nabble.com. >>> >>> ------------------------------------------------------------------------------ >>> This SF.net email is sponsored by Sprint >>> What will you do first with EVO, the first 4G phone? >>> Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first >>> _______________________________________________ >>> Csound-devel mailing list >>> Csound-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/csound-devel >> >> >> ------------------------------------------------------------------------------ >> This SF.net email is sponsored by Sprint >> What will you do first with EVO, the first 4G phone? >> Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > -- Andrés ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net https://lists.sourceforge.net/li

Date	2010-07-25 19:05
From	menno
Subject	Re: [Cs-dev] rnd text incorrect
	this is exactly why the manual needs good examples for every opcode! -- View this message in context: http://csound.1045644.n5.nabble.com/rnd-text-incorrect-tp1465863p2140211.html Sent from the Csound - Dev mailing list archive at Nabble.com. ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-07-25 19:34
From	andy fillebrown
Subject	Re: [Cs-dev] rnd text incorrect
	laughing at the irony... ~ af > I should remember to RTFM more often... =) > > Cheers, > Andrés ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net