Webcam/Audio Input

Question

I am admittedly an amateur at Actionscript, but I'm trying to
produce an example of Flash's ability to process video/microphone
data as a "jumping off" point for other projects. My problem is:
I am using some open source to pick up web cam movement and
produce a matrix based on such. I have added the code to receive
microphone input, which worked in the example (provided at
kirupa.com) that I composed on my machine. I am trying to replace
the "dot_mc.1=255" value with the microphone activity value
(0-100?) yet I am getting a response of "The property being
referenced does not have the static attribute." I understand this
statement, but I am unsure as how to re-form this statement to
accept variable data.
Here is the code so far:
import flash.display.*
import flash.geom.*
mic = Microphone.get();
_root.attachAudio(mic);
mic.setUseEchoSuppression(false);
function initialize()
setInterval(this,"snap",100)
this.createEmptyMovieClip("snap_mc",this.getNextHi
ghestDepth())
snap_mc._x=(Stage.width/2)-(scale*w/2)
snap_mc._y=(Stage.height/2)-(scale*h/2)
m=new Matrix()
m.scale((output._xscale/100),(output._yscale/100))
now=new BitmapData(w,h)
rt=new Rectangle(0,0,w,h)
n=0
for(x=1;x<w;x+=o)
for(y=1;y<h;y+=o)
++n
dot_mc=snap_mc.createEmptyMovieClip("dot"+n,n)
dot_mc._x=x*scale
dot_mc._y=y*scale
dot_mc.lineStyle(dblo,0x000000)
dot_mc.lineTo(0,1)
function snap()
var c=0
now.draw(output,m)
for(var x=1;x<w;x+=o)
for(var y=1;y<h;y+=o)
++c
nc=now.getPixel(x,y)
nr=nc>>16&0xff;
ng=nc>>8&0xff;
nb=nc&0xff;
nl=Math.sqrt(nr*nr + ng*ng + nb*nb)
bc=before.getPixel(x,y)
br=bc>>16&0xff;
bg=bc>>8&0xff
bb=bc&0xff
bl=Math.sqrt(br*br + bg*bg + bb*bb)
d=Math.round(Math.abs(bl-nl))
dot_mc=snap_mc["dot"+c]
if(d>tolerance)
dot_mc.clear()
dot_mc.l=255
dot_mc.lineStyle(dblo,255<<8)
dot_mc.lineTo(0,1)
dot_mc.onEnterFrame=fadePixel
updateAfterEvent()
before=now.clone()
function fadePixel()
this.clear()
this.l-=this._parent._parent.ml
this.lineStyle(this._parent._parent.dblo,this.l<<8 )
this.lineTo(0,1)
if(this.l == 0)
delete this.onEnterFrame
Altering the dot_mc value varies the colors of the webcam
matrix dots, so I just need the activity level on the microphone to
act as the value and perhaps multiply it by 2 (since the dot_mc
value can be up to 255).
Any Ideas on how to repair this?

Answer 1

Thanks for the suggestions. A few hours after posting my issue I switched everything on and all was as before. I could control the audio input level in system preferences and use the webcam for skype calls as before, using it as the audio and video input device.
Now I have swithched the machine on again and it seems to have reverted back to the same problem as described in my original posting......very frustrating. Nothing registering on the sound input levels in system preferences. Tried restarting several times without success.
The Midi settings for the "Unknown USB Audio Device" i.e. Webcam are as follows:
Source Default (Grayed out)
Format 48000 Hz 1 ch 16 bit
M Channel volume slider is at the mid point, Value 0.49, dB 18.28, Mute and Thru both unchecked
I Channel slider grayed out and all else blank.
Since everything started working again I haven't touched these settings so I assume that they are the same with or without the issue.
I know issues that occur randomly such as this are least likely to find a solution but further suggestions welcome.