..or another dull effect?

I have written an opcode called exciter based on the calf exciter.  I
am not sure it does the right thing but it does something!

To compile needs to set BUILD_EXCITER_OPCODES to ON

Current test csd below.  Could someone please tell me if it is
anything like right?  I am sure the resampling code is wrong

It needs a signal and 5 parameters (freq, ceiling, ceiling_active,
blend and drive) whatever they are.
==John ffitch




instr 1
  a1 diskin2 "beats.wav", 1
  a2 exciter a1, 1000, 1200, 1, 0.2, 0.5
     out     a2
endin



i1 0 10
e




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Hi John,

i just build Csound but i see no exciter opcode....




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That looks exciting(!), looking forward to test it.


2014-08-20 13:35 GMT+02:00 john ffitch :
> ..or another dull effect?
>
> I have written an opcode called exciter based on the calf exciter.  I
> am not sure it does the right thing but it does something!
>
> To compile needs to set BUILD_EXCITER_OPCODES to ON
>
> Current test csd below.  Could someone please tell me if it is
> anything like right?  I am sure the resampling code is wrong
>
> It needs a signal and 5 parameters (freq, ceiling, ceiling_active,
> blend and drive) whatever they are.
> ==John ffitch
>
> 
>
> 
> instr 1
>   a1 diskin2 "beats.wav", 1
>   a2 exciter a1, 1000, 1200, 1, 0.2, 0.5
>      out     a2
> endin
> 
>
> 
> i1 0 10
> e
> 
>
> 
>
> ------------------------------------------------------------------------------
> Slashdot TV.
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> Csound-devel@lists.sourceforge.net
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here is an example that shows what the opcode does.
First instr. you hear low volume (distorted/ created harmonics?) signal only
second instr is the effect with a voice combined 
third instr is the original sample - so you can compare with the previous,
effected sound




sr=44100
ksmps=1
nchnls=2
0dbfs=1

instr 1 ; original sound
  a1 diskin2 "fox.wav", 1, 0, 1
;freq, ceiling, ceiling_active, blend and drive
  a2 exciter a1, 3000, 10000, 1, 0.9, .1
     outs     a1, a1
endin

instr 2 ; excited sound + original sound
  a1 diskin2 "fox.wav", 1, 0, 1
;freq, ceiling, ceiling_active, blend and drive
  a2 exciter a1, 3000, 10000, 1, 0.9, .1
     outs     a2+a1, a2+a1
endin

instr 3 ; excited sound only
  a1 diskin2 "fox.wav", 1, 0, 1
;freq, ceiling, ceiling_active, blend and drive
  a2 exciter a1, 3000, 10000, 1, 0.9, .1
     outs     a2, a2
endin



i3 0 6
i2 7 6
i1 14 6
e


 

I do not know what the range of drive can be. i tweaked it a bit but heard
no difference...
i guess it should be the level of distortion. 

i will continue to test later.



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