Hi Rory,

I'm not sure if this is exactly what you're after, but I had done this UDO:

    opcode yi_add_table,a,ikko

itable, kenv, kpch, i_index xin

itablesize = ftlen(itable)

ifreq tablei i_index, itable
iamp tablei i_index + 1, itable

kfreq = kpch * ifreq

if (iamp > 0) then
  asig oscil3 iamp, kfreq, gi_sine
else
    asig = 0
endif

kcount = 0
kenv_local = kenv

loopStart:

kenv_local = kenv_local * kenv

loop_lt kcount, 2, i_index + 2, loopStart

asig = asig * kenv_local

aout = asig

if (i_index < itablesize - 2) then
   anextsig yi_add_table itable, kenv, kpch, i_index + 2
    aout = aout + anextsig
endif

if (i_index == 0) then
   aout balance aout, asig
endif

    xout aout

   endop

in this Csound Journal article:

http://www.csounds.com/journal/2006summer/controlFlow_part2.html

Maybe that helps?

steven


On Mon, Nov 24, 2008 at 11:58 AM, Rory Walsh <rorywalsh@ear.ie> wrote:
> Thanks Steven, changing khrm to an i-rate variable works as one would
> expect. But using a kgoto doesn't work either. I'm assuming that
> something like this can be done?
>
> Rory.
>
>
> 2008/11/24 Steven Yi <stevenyi@gmail.com>:
>> Hi Rory,
>>
>> I think there must be an issue when you change your comparison against
>> the 10 (constant) to the khrm (k-rate) that the type of goto must be
>> changing.  Could you do a test making khrm as ihrm to see if that
>> works?
>>
>> steven
>>
>> On Mon, Nov 24, 2008 at 8:30 AM, Rory Walsh <rorywalsh@ear.ie> wrote:
>>> One of my students was asking if there is a version of the the buzz
>>> opcode that has a fade-in for each harmonic so that pops do not occur
>>> in the output. I didn't know if there was and couldn't find on in the
>>> manual so I set about doing a simple UDO for him. Here's what I have,
>>> the problem is explained below:
>>>
>>>        opcode testBuzz, a, kikip
>>> kamp, ifreq, khrm, ifn, icnt   xin     ; read input parameters
>>> if (icnt >= 10) goto skip
>>>   kenv linseg 0, 0.1, 1, 1, 1
>>>   a1   testBuzz kamp*kenv, ifreq, khrm, ifn, icnt+1
>>> skip:
>>>   aout oscil kamp/khrm, ifreq*icnt, ifn
>>>        xout (aout+a1)                 ; write output
>>>        endop
>>>
>>> The problem is that if I use khrm instead of 10 in my test against
>>> icnt, csound will baulks out at init-time. Any suggestions as how can
>>> I do this? I'm trying to use that hkrm value toset the number of
>>> harmonics.
>>>
>>> Rory.
>>>
>>>
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>>>
>>
>>
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>
>
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