Controlling p2 of 80 soundin

General
#1

Hello, I need to play 80 soundin to control 80 different soundfiles.
I am going to use 2 sliders for each soundin to control the level and the pan:

kamp1 invalue “amp1”
kpan1 invalue “pan1”
aL1, aR1 soundin “Do3_01.aif”, 0
a1L = aL1 * kpan1 * kamp1
a1R = aR1 * (1 - kpan1) * kamp1

I’d like to have a third real-time control to set a parameter corresponding to p2 field in the score, so each player can start in a different moment.
But I don’t have any idea if it’s possible.

#2

sure — everything is possible =)

when you can describe more in detail what it means “to set a parameter
corresponding to p2 field in the score”, i might be able to help you.

#3

For instance I want soundin#1 to start 1 second later, like if the score statement was “i1 1”. But I’d like to set it by a slider, in the same way I did with level and pan. So, for each soundin I set onset, level and pan, and then play the whole instrument.

#4

one possibility would be to seperate the jobs between two instruments:

  • one instrument receives the onset and calls
  • the other instrument which then plays back the sound file.

so in some not tested code:

instr Receive
kOnset invalue “onset”
schedulek “Play”,kOnset,1
turnoff
endin

instr Play
p3 filelen “Do3_01.aif”
…
endin

depending on your situation, there are als other possibilities. perhaps
the most simple one is a delay:

kamp1 invalue “amp1”
kpan1 invalue “pan1”
kOnset invalue “onset”
iDelay = i(kOnset)
aL1, aR1 soundin “Do3_01.aif”, 0
aL1 delay aL1, iDelay
aR1 delay aR1, iDelay
a1L = aL1 * kpan1 * kamp1
a1R = aR1 * (1 - kpan1) * kamp1

hope some of this might help to find a solution …

joachim

#5

Hello Joachim,

thank you a lot for your help. I was looking for something complicated and didn’t think about the delay option, that is quite smart.
I have tried with it and it works very fine, thank you again. But I will try the first option as well and let you know.

Best regards,

G.

#6

Hello to the community!

Regarding the topic of this post I created the following orc., with 80 players:

strset 1, “Do3_01.aif”
;…
strset 80, “Si4_02.aif”

instr 1

kamp1 invalue “amp1”
kpan1 invalue “pan1”
konset1 invalue “onset1”
iDelay1 = i(konset1)

aL1, aR1 soundin 1, 0
aL1 delay aL1, iDelay1
aR1 delay aR1, iDelay1
a1L = aL1 * kpan1 * kamp1
a1R = aR1 * (1 - kpan1) * kamp1
;…
kamp80 invalue “amp80”
kpan80 invalue “pan80”
konset80 invalue “onset80”
iDelay80 = i(konset80)

aL80, aR80 soundin 80, 0
aL80 delay aL80, iDelay80
aR80 delay aR80, iDelay80
a80L = aL80 * kpan80 * kamp80
a80R = aR80 * (1 - kpan80) * kamp80

I have been working fine with it for a while, then suddenly I got this error message:

WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
diskin2: opened ‘Do3_01.aif’:
96000 Hz, 2 channel(s), 3185863 sample frames
INIT ERROR in instr 1: illegal delay time
aL1 delay aL1 iDelay1 0
INIT ERROR in instr 1: illegal delay time
aR1 delay aR1 iDelay1 0

WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
diskin2: opened ‘Si4_02.aif’:
96000 Hz, 2 channel(s), 9216593 sample frames
INIT ERROR in instr 1: illegal delay time
aL80 delay aL80 iDelay80 0
INIT ERROR in instr 1: illegal delay time
aR80 delay aR80 iDelay80 0
B 0.000 - note deleted. i1 had 160 init errors
Score finished in csoundPerformKsmps() with 2.
inactive allocs returned to freespace
end of score. overall amps: 0.00000 0.00000
overall samples out of range: 0 0
1 errors in performance

Do you have any idea what could have happened?

Thank you

#7

i think it has nothing to do with p2 but with the delay:

INIT ERROR in instr 1: illegal delay time
aL1 delay aL1 iDelay1 0

can you do print(iDelay1) and see what is the delay time here?
if negative, it would be the reason.
perhaps even zero should be avoided.

#8

Thank you. It says
instr 1: iDelay1 = 0.000
But the slider is set on a positive number.

#9

perhaps it works if you write iDelay1 invalue "onset1"?
(it is possible to get i-values from invalue, too.)

if not, you can use limit to avoid zero for iDelay1:
iDelay1 limit iDelay1, 0.001, 100

or program your own limit like this:
iDelay1 = (iDelay1<=0) ? 0.001 : iDelay1

#10

Thank you! This one works:
iDelay1 limit iDelay1, 0.001, 100
Now I don’t get error messages, only this warning:
WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
WARNING: InputChannelCallback not set.
diskin2: opened ‘Si4_02.aif’:
96000 Hz, 2 channel(s), 9216593 sample frames

What does it mean? is it maybe the reason why there is no sound?

#11

how do you use csound (via cabbage, csoundqt, blue, …)? which version
of csound did you install?

i would guess that when you get your values via invalue, the warning is
not relevant for you. and i don’t understand what you mean by “there is
no sound”.

#12

I am using Csound 6.10 it via CsoundQt (Version 0.9.5). I currently use the two softwares playing several .csd files without any problem.
No sound means that I can’t hear any sound output.
But the oddest thing is that the original orchestra - without setting limits for the delay - worked fine for weeks, I also produced many sounds with it.

#13

hmmm ---- 6.10 is really old.
i’d recommend this: make a simple test with invalue to see if it is
working at all.
if you can, upgrade to a more recent csound version.
another option is to use the chn opcodes instead of invalue/outvalue.