Hope is not too dumb: why expseg keeps rising (or falling) after the  
last value?

Thanks, Enrico ^_^


ps. I would have asked to Dr. B. but you guys are faster :D :D :D  
late night humor : /



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> Hope is not too dumb: why expseg keeps rising (or falling) after the
> last value?
>
> Thanks, Enrico ^_^
>
>

Because that is what it does!  We have discussed this endlessly in the
past, but the linseg/expseg/transeg will continue the last segment if the
time exceeds the perscription.

==John ff



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I understood Enrico said that expseg does NOT continue the last  
segment (as it should).
I think he's right and there is a bug in expseg. Please check:

instr 1
klin	linseg	 1, 1, 2
ktran	transeg	1, 1, 1, 2
kexp	expseg	 1, 1, 2
printks "klin = %f%nktrans = %f%nkexp = %f%n", .5, klin, ktran, kexp
endin

returns for 3 seconds:

klin = 1.000000
ktrans = 1.000000
kexp = 1.000000
klin = 1.499726
ktrans = 1.377112
kexp = 1.414140
klin = 1.999763
ktrans = 1.999218
kexp = 2.000110
klin = 2.000000
ktrans = 2.000000
kexp = 2.828882
klin = 2.000000
ktrans = 2.000000
kexp = 4.001068
klin = 2.000000
ktrans = 2.000000
kexp = 5.658972
klin = 2.000000
ktrans = 2.000000
kexp = 8.003851

	joachim

Am 16.02.2010 um 08:16 schrieb jpff@cs.bath.ac.uk:

>> Hope is not too dumb: why expseg keeps rising (or falling) after the
>> last value?
>>
>> Thanks, Enrico ^_^
>>
>>
>
> Because that is what it does!  We have discussed this endlessly in the
> past, but the linseg/expseg/transeg will continue the last segment  
> if the
> time exceeds the perscription.
>
> ==John ff
>
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body  
> "unsubscribe csound"
>



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I believe the line opcode is the one we have frequent discussions
about, the 'seg' opcodes should stop shouldn't they?

On Tue, Feb 16, 2010 at 5:47 AM, joachim heintz  wrote:
> I understood Enrico said that expseg does NOT continue the last segment (as
> it should).
> I think he's right and there is a bug in expseg. Please check:
>
> instr 1
> klin    linseg   1, 1, 2
> ktran   transeg 1, 1, 1, 2
> kexp    expseg   1, 1, 2
> printks "klin = %f%nktrans = %f%nkexp = %f%n", .5, klin, ktran, kexp
> endin
>
> returns for 3 seconds:
>
> klin = 1.000000
> ktrans = 1.000000
> kexp = 1.000000
> klin = 1.499726
> ktrans = 1.377112
> kexp = 1.414140
> klin = 1.999763
> ktrans = 1.999218
> kexp = 2.000110
> klin = 2.000000
> ktrans = 2.000000
> kexp = 2.828882
> klin = 2.000000
> ktrans = 2.000000
> kexp = 4.001068
> klin = 2.000000
> ktrans = 2.000000
> kexp = 5.658972
> klin = 2.000000
> ktrans = 2.000000
> kexp = 8.003851
>
>        joachim
>
> Am 16.02.2010 um 08:16 schrieb jpff@cs.bath.ac.uk:
>
>>> Hope is not too dumb: why expseg keeps rising (or falling) after the
>>> last value?
>>>
>>> Thanks, Enrico ^_^
>>>
>>>
>>
>> Because that is what it does!  We have discussed this endlessly in the
>> past, but the linseg/expseg/transeg will continue the last segment if the
>> time exceeds the perscription.
>>
>> ==John ff
>>
>>
>>
>> Send bugs reports to this list.
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> csound"
>>
>
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>


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Is the envelope as long as idur (p3)? If not, add another segment to hold
the value. Eg, if p3 = 10 secs and you use expseg to change a value over
the first second, try this:

kenv  expseg  0.001,1,1,9,1

You might also take a look at transeg, a much more flexible envelope that
lets you change the slope of the exponential curve.

--David



> Hope is not too dumb: why expseg keeps rising (or falling) after the
> last value?
>
> Thanks, Enrico ^_^
>
>
> ps. I would have asked to Dr. B. but you guys are faster :D :D :D
> late night humor : /
>
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>

Yes, and in general, when you go to use an opcode, check the manual first to see if there's a better one for the job.

MKG from cell phone

On Feb 19, 2010 6:33 PM, <moko@city-net.com> wrote:

Is the envelope as long as idur (p3)? If not, add another segment to hold
the value. Eg, if p3 = 10 secs and you use expseg to change a value over
the first second, try this:

kenv  expseg  0.001,1,1,9,1

You might also take a look at transeg, a much more flexible envelope that
lets you change the slope of the exponential curve.

--David

> Hope is not too dumb: why expseg keeps rising (or falling) after the
> last value?
>
> Thanks, ...

--
mheller@city-net.com
dmooney@city-net.com
Opaque Melodies:
http://www.city-net.com/~moko/

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