[chuck-users] Non-random random number

[David Loberg Code]

'Noise' object does not interfere.
'SubNoise'  does.

david


> All of those instruments contain noise.  Likely a Noise object.  Wonder if Noise itself does a seed?  I'll check.
> 
> Sent from my iPhone
> 
> 

> 
> On Oct 9, 2013, at 4:40 PM, David Code <d.loberg.code at wmich.edu> wrote:
> 
>> Apparently, the non-random bug does not happen after declaration of all STK instruments, just some of them:
>> BlowBotl, BlowHole, Clarinet, Flute, Saxofony, StifKarp, VoicForm
>> 
>> And the problem occurs with both Std.rand2 and Std.rand2f
>> (I haven't conducted any more tests yet to see under what other conditions it might happen.)
>> 
>> 
>> david
>> 
>> 
>>> Forgive me if this was already discussed on the list before.  I am puzzled about a non-random random number.
>>> When the random number is calculated right after an STK instrument is declared, the result is not random.  It is the same number every time.
>>> However, if the same code occurs without an STK declaration before it, the result is random.
>>> 
>>> 
>>> while (true)
>>> {
>>> StifKarp stu => dac;
>>> int randy;
>>> Std.rand2(0,10) => randy;
>>> <<<"here are three random numbers",
>>> Std.rand2(0,10), Std.rand2(0,10),Std.rand2(0,10),
>>> "and NON-random Randy", randy >>>;
>>> 
>>> Std.rand2(0,10) => randy;
>>> <<<"here are three more random numbers",
>>> Std.rand2(0,10), Std.rand2(0,10),Std.rand2(0,10),
>>> "and random Randy", randy >>>;
>>> 1000::ms => now;
>>> }
>>> 
>>> 
>>> david
>>> 
>>> David Loberg Code
>>> School of Music
>>> Western Michigan University
>>> 1903 W Michigan Ave
>>> Kalamazoo, MI 49008-5434
>>> code at wmich.edu
>> 
>> 
>> _______________________________________________
>> chuck-users mailing list
>> chuck-users at lists.cs.princeton.edu
>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> 
> 
> 
> 
> 
> 
> 
> 
> From: David Code <d.loberg.code at wmich.edu>
> Subject: Re: [chuck-users] Non-random random number
> Date: October 9, 2013 6:37:13 PM EDT
> To: chuck-users at lists.cs.princeton.edu
> Reply-To: ChucK Users Mailing List <chuck-users at lists.cs.princeton.edu>
> 
> 
> Upon a quick check it appears that Math.random is fine.  
> I guess I just need to retro-fit my older ChucK files.
> 
> david
> 
>> Does it do it with Math.random too?
>> 
>> -Jeff
>> 
>> 
>> --
>> Jeffrey Albert, Ph.D.
>> Assistant Professor of Music Industry Technology
>> Loyola University New Orleans
>> College of Music and Fine Arts
>> 6363 St. Charles Ave.
>> Campus Box 8
>> New Orleans, LA 70118
>> 
>> Office: Communications/Music Complex 428P
>> Office Phone: (504) 865-2606
>> Voice & Text: (504) 315-5167
>> jvalbert at loyno.edu
>> http://www.loyno.edu/~jvalbert
>> 
>> 
>> On Oct 9, 2013, at 4:40 PM, David Code <d.loberg.code at wmich.edu> wrote:
>> 
>> > Apparently, the non-random bug does not happen after declaration of all STK instruments, just some of them:
>> > BlowBotl, BlowHole, Clarinet, Flute, Saxofony, StifKarp, VoicForm
>> > 
>> > And the problem occurs with both Std.rand2 and Std.rand2f
>> > (I haven't conducted any more tests yet to see under what other conditions it might happen.)
>> > 
>> > 
>> > david
>> > 
> 
> 
> On Oct 9, 2013, at 5:40 PM, David Code wrote:
> 
>> Apparently, the non-random bug does not happen after declaration of all STK instruments, just some of them:
>> BlowBotl, BlowHole, Clarinet, Flute, Saxofony, StifKarp, VoicForm
>> 
>> And the problem occurs with both Std.rand2 and Std.rand2f
>> (I haven't conducted any more tests yet to see under what other conditions it might happen.)
>> 
>> 
>> david
>> 
>> 
>>> Forgive me if this was already discussed on the list before.  I am puzzled about a non-random random number.
>>> When the random number is calculated right after an STK instrument is declared, the result is not random.  It is the same number every time.
>>> However, if the same code occurs without an STK declaration before it, the result is random.
>>> 
>>> 
>>> while (true)
>>> {
>>> StifKarp stu => dac;
>>> int randy;
>>> Std.rand2(0,10) => randy;
>>> <<<"here are three random numbers",
>>> Std.rand2(0,10), Std.rand2(0,10),Std.rand2(0,10),
>>> "and NON-random Randy", randy >>>;
>>> 
>>> Std.rand2(0,10) => randy;
>>> <<<"here are three more random numbers",
>>> Std.rand2(0,10), Std.rand2(0,10),Std.rand2(0,10),
>>> "and random Randy", randy >>>;
>>> 1000::ms => now;
>>> }
>>> 
>>> 
>>> david
>>> 
>>> David Loberg Code
>>> School of Music
>>> Western Michigan University
>>> 1903 W Michigan Ave
>>> Kalamazoo, MI 49008-5434
>>> code at wmich.edu
>> 
>> 
> 
> 
> 
> 
> 
> _______________________________________________
> chuck-users mailing list
> chuck-users at lists.cs.princeton.edu
> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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