Re: [Sndobj-devel] Mixing objects

[Bosko&Toma M. <bos...@gm...>]

Hi Victor!
Thanks for your help and example, it helped a lot. Now I run out into
another problem with mixing object. Here's example code:
import sndobj
import time

tab = sndobj.HarmTable()
env = sndobj.Interp(5000, 0, 4, 2)
osc1 = sndobj.Oscili(tab,60,0, None, env)
osc2 = sndobj.Oscili(tab,500,0, None, env)
osc3 = sndobj.Oscili(tab,1500,0, None, env)

mix1 = sndobj.Mixer()
mix1.AddObj(osc1)
mix1.AddObj(osc2)
mix1.AddObj(osc3)

out = sndobj.SndRTIO(1)
out.SetOutput(1,mix1)
t = sndobj.SndThread()
t.AddObj(osc1)
t.AddObj(osc2)
t.AddObj(osc3)
t.AddObj(mix1)
t.AddObj(env)
t.AddObj(out, sndobj.SNDIO_OUT)

t.ProcOn()
time.sleep(2)

mix1.DeleteObj(osc1)
time.sleep(2)

t.ProcOff()

As you can see, after 2 seconds I want to delete osc1 from mixer but this
doesn't work as expected: for some reason it deletes osc1 and osc3 from
mix1. Also I tried to put
print mix1.GetObjNo()
after
mix1.DeleteObj(osc1)
to see is it really only one osc left but it says that ther's still 2 osc
left but I can hear only one.
Strange thing is that when I tried to delete osc2 or osc3 it's working fine.
Only osc1 is problematic. Why?
Is it a bug or I'm doing something wrong?
Thanks.

Bosko

On 7/28/07, Victor Lazzarini <vic...@nu...> wrote:
>
> Something like this:
>
> mix1 = Mixer()
> mix2 = Mixer()
> osc1 = Oscili(...)
> osc2 = Oscili(...)
> echo = Comb(0.5, 0.5, mix1)
>
> mix1.AddObj(osc1)
> mix1.AddObj(osc2)
> mix2.AddObj(mix1)
> mix2.AddObj(echo)
>
> t = SndThread()
> t.AddObj(osc1)
> t.AddObj(osc2)
> t.AddObj(mix1)
> t.AddObj(echo)
> t.AddObj(mix2)
>
> outp = SndRTIO(mix2)
>
> t.AddObj(mix2, SNDIO_OUT)
>
> t.ProcOn()
>
> etc...
>
> Victor
> >
> >
> > Hi!
> > Thanks for reply. Could you pass some example of how to do
> > that? I've been trying for 2 days to do what you've sad
> > but with no luck. Thanks.
> >
> > Bosko
> >
> > On 7/27/07, Victor Lazzarini <vic...@nu...>
> > wrote: >
> > > I think the best way of doing this is
> > > to use only one SndThread object (not
> > > a separate one for each SndObj). Then
> > > you can create mixers for each group
> > > of SndObjs that you want to mix together
> > > and one main mixer that mixes all the
> > > separate sub-mixes.
> > >
> > > Using several threads might not be the
> > > most efficient way of doing this, although
> > > each thread will end up being mixed with
> > > the others (depending on the OS, on Linux
> > > this might not happen).
> > >
> > > Victor
> > >
> > > >
> > > >
> > > > Hi!
> > > >
> > > > Here is the example code:
> > > > import sndobj
> > > > import time
> > > >
> > > > class Play(object):
> > > >     def __init__(self, frq, amp):
> > > >         self.frq = frq
> > > >         self.amp = amp
> > > >         self.tab = sndobj.HarmTable()
> > > >         self.osc = sndobj.Oscili(self.tab, frq, amp)
> > > >         self.outp = sndobj.SndRTIO(1)
> > > >         self.outp.SetOutput(1,self.osc)
> > > >         self.thread = sndobj.SndThread()
> > > >         self.thread.AddObj(self.osc)
> > > >         self.thread.AddObj(self.outp,
> > > >     sndobj.SNDIO_OUT) def onOff(self,switch):
> > > >         if switch == 'on':
> > > >             self.thread.ProcOn()
> > > >         elif switch == 'off':
> > > >             self.thread.ProcOff()
> > > >
> > > > obj1 = Play(100,5000)
> > > > obj2 = Play(170,3000)
> > > > obj3 = Play(300,2000)
> > > > obj1.onOff('on')
> > > > obj2.onOff('on')
> > > > obj3.onOff('on')
> > > > time.sleep(5)
> > > > obj1.onOff('off')
> > > > obj2.onOff('off')
> > > > obj3.onOff('off')
> > > >
> > > > So it's a simple class and I made 3 object's from it.
> > > > How can I mix i.e. just 1st and 3rd object so I can
> > > > add some eff just on them? Thanks.
> > > >
> > > > Bosko
> > > >
> > > >
> > > >
> > > >
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