pick whip to fade up sound

[Mike Clasby]

I’m confused (nothing new) I didn’t know AE has a way to fade audio from 100 to 0%, I thought Audio was controlled by the Audio Levels Stopwatch, 0 to -48 (or so) dB. Is this an AE 7 thing? Are you using Filip’s script?

If you are stuck where you say, you should be able to use the old linear Interpolation:

linear (t, tMax, tMin, value1, value2)

The linear Interpolation would be (I think):

linear (t, 100, 0, 0, 100)

I just don’t know what your “t” is.

Maybe Dan or someone in the know will help.

[Mylenium]

There’s a bazillion ways to go about this, but the easiest one would be using the keyframe methods:

linear(thisComp.layer(“fade in solid”).transform.opacity,100,0,0,100)

Mylenium

[Pour Myl

[Mike Clasby]

Mylenium, when I apply your expression to the Audio Levels of the Audio Layer I Get this error:

After Effects warning: Class ‘Layer” has no property or method named ‘transform’.
Error occurred at line 1.
Expression disabled.

Is this “transform” an AE7 expression change? I’m just trying to fill in my gaps in knowledge of AE, how do you control the fade of an audio layer from 100% to 0%? I always thought it was with Audio Levels stopwatch, is there another way, with percentages? Seriously, I’d like to know as it sounds alot easier. Is there another way to do an audio fade in AE, other than Audio Levels?

I don’t know where his original expression came from by pickwhipping, to what?

thisComp.layer(“fade in solid”).transform.opacity

When I pickwhip from an Audio Layer’s Audio Levels to the “fade in solid” layers opacity, I get:

temp = thisComp.layer(“fade in solid”).opacity;
[temp, temp]

What am I missing. I know this is probably a Gap in my basic knowledge of AE, but I’m stumped. Is this an AE7 addition (% controlling audio fade), or just my gap (first stages of Alzheimer’s)? Have mercy, put me out of this misery.

Thanks in advance.

[Steve Roberts]

[yikesmikes] “I’m just trying to fill in my gaps in knowledge of AE, how do you control the fade of an audio layer from 100% to 0%?”

Effect>audio>stereo mixer?

[Mike Clasby]

Thank you.