[Qutecsound-users] Widget latency

[Louis C. <lou...@jo...>]

I've been trying to track down a bug in a rather large csd file  
lately. I'm not sure that the following is the key to my problem, but  
it does seem to be part of the trouble:

It seems that there is a perceptible delay from the time that I load a  
widget with a value and when that the value may then be retrieved. In  
the attached csd file, which is the default qutecsound "Untitled" file  
plus a few extra lines of mine, I have this sequence:

outvalue "test",20
ktemp invalue "test"
printk 1,ktemp

"test" is the channel name for a scrollnumber widget. I would expect  
that when I print ktemp I would see a "20" but this is not exactly  
what happens. Here's the output:

new alloc for instr 2:
i 2 time 0.00290: 0.00000
i 2 time 1.00136: 20.00000
i 2 time 2.00272: 20.00000
i 2 time 3.00118: 20.00000
i 2 time 4.00254: 20.00000
i 2 time 5.00100: 20.00000
i 2 time 6.00236: 20.00000

Apparently it takes some time before the outvalue opcode delivers the  
value 20 and the invalue opcode is able to see it. The environment is  
csound 5.10, Mac Pro, 2.66 GHz quad core Intel processor, qutecsound  
0.5.0.

I'm looking for ideas about how to deal with this latency in a csd  
file that uses more than 50 scrollnumber widgets plus many other  
widgets. Any thoughts?

best,
Lou Cohen