Attached is a simple .csd to test the opcode schedwhen.

The runs realtime for 30 seconds, and during that time will play a
one-second A440 sine wave whenever the (FLTK) Start button is pushed on.

I don't know about CS4, but in CsoundAV, schedwhen has not worked for a long
time. We typically use schedkwhen instead - which appears to the user as
identical to schedwhen except for the addition of two extra variables (the
second and third). Oevind put me on to this.

I've included the option of substituting schedkwhen for schedwhen in this
.csd. The two extra zeroes in schedkwhen do nothing and simulate schedwhen.

Bottom line: schedkwhen works both in AV and in CS5. Schedwhen worka in
neither, though for different reasons.

(In AV, the note turns on properly, but does not turn off after one second -
its duration.)

In CS5, the orchestra compilation generates the message: Error: 'ktrig' of
type k not allowed when expecting S (in schedwhen). Schedwhen takes 4 k-type
inputs; I've no idea why an S-type variable should be specified. I'd gather
its a typo.

The AV problem with schedule seems to be something entirely different. It
would be very nice if both could be fixed. It would be nice to be able to
use schedwhen in place of the more complex schedkwhen.

Art Hunkins

----- Original Message -----
From: 
To: "Csound Developers Discussion List" 
Sent: Wednesday, July 07, 2004 1:25 AM
Subject: [CSOUND-DEV:4892] Opcodes in v4 and v5


> I have done a small survey of the opcodes available in v4.23 and
> current v5.  The differences are below.  Some of the first set relate
> to things which should be in the audio software bus.  But missing is
> convolve and wgbowedbar which I do not understand.
>
> The ones in twice have me very confused at present as I cannot see why
> or how.
>
>
> In v4 and not in v5:
>    button    k       k
>    checkbox  k       k
>    chosc1    a       ik
>    chosc2    a       iikkkkk
>    control   k       k
>    convle    mmmm    aSo
>    convolve  mmmm    aSo
>    flashtxt  (null)  iS
>    setctrl   (null)  iSi
>    wgbowedbar a       kkkkkoooo
>
> In v5 twice!
>    delay1    a       ao
>    delayw    (null)  a
>    deltap    a       k
>    deltap3   a       x
>    deltapi   a       x
>    deltapn   a       x
>    deltapx   a       ai
>    deltapxw  (null)  aai
>    limit     i       iii
>
> in v5 and not in v4:
>    maxk      k       aki
>    splitrig  (null)  kkiiz
>    timedseq  k       kiz
>    vdelayk   k       kkioo
>    seqtime2  k       kkkkkk
>
> Opcodes with different arguments:
>    v5   FLcount   ki      Siiiiiiiiiz
>    v4   FLcount   ki      Siiiiiiiiiiz
>
>    v5   schedwhen (null)  Skkkm
>    v4   schedwhen (null)  kSkkm
>
>
> ==John ffitch
>