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Audio markers to control levels
Hey all, 3 pronged this…..
I would like to set markers on my audio layer that will drive its volume.
So for example I have a clip that comes in with a voice over and I would like the background audio bed to drop down quiet whilst the voice is on and then when the voice over has finished the bed comes back up again, but I would like to drive this by markers as opposed to keyframes. (“In” and “Out” markers). This will happen multiple times over the course of the programme.
I would also like a slider to control how quiet the audio drops to again rather than keyframing this in, so I vary this as I need.
Finally, I would like the audio to fade down to its quiet level over an number of keyframes but I would like to be able to control this number again with a slider….
I have no clue how to do this, could anyone help? Is this even doable?
Cheers, Olly
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2 Replies
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I think this will work for what you want. At odd-numbered markers, it ramps the audio level down by the decibels specified by the fadeAmt slider over the number of frames specified by the fadeFrames slider. At even-numbered markers, it ramps back to the pre-expression value.
fadeFrames = effect("Fade Frames")("Slider");
fadeAmt = effect("Fade Amount")("Slider");n = 0;
m = marker;
if (m.numKeys > 0){
n = m.nearestKey(time).index;
if (m.key(n).time > time) n--;
}if (n > 0){
t1 = m.key(n).time;
t2 = t1 + framesToTime(fadeFrames);
if (n%2)
linear(time,t1,t2,value,value-[fadeAmt,fadeAmt])
else
linear(time,t1,t2,value-[fadeAmt,fadeAmt],value);
}else
value
Dan
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Has anyone told you that you are a genius!
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