Re: Audio fade

[Marc Hoffman]

Here are a couple of thoughts on this.  It's a good challenge, for sure:


First Idea:

Put the loop in the main timeline.  Set the number of loops so that it

plays just a few seconds in excess of the current scene.  Label the first

frame of this excess "fade out."  In the sound editor window, set the

volume curve so the sound actually is fading to zero amplitude during this

section. Set the sound to "stream" so that the other layer frames always

sync to the sound. Now, rather than attach your "go to next scene" action

to the button instance, write it as a frame action where the sound ends in

the main timeline.  Then assign the button click to take the user to the

frame "fade out."  When the user clicks, there will probably be a little

glitch as the movie jumps ahead, but the sound should quickly resume and

then fade nicely, after which the next scene will begin.  I'm not sure if

this works; possibly the "fade out" portion will just be laid on top of the

already playing sound, in which case you'll need to add a "stop sound"

action and a "stream sound" action in the "fade out" frame.


Second Idea:

Float the sound as a movie in another layer, so it doesn't have to stop

when the first scene stops.  Of course, eventually you'll want it to stop,

and the length will be determined by the length of its movie, not by user

interaction.


Third Idea:

This is more of an audio solution.  Depending on what the sound loop is

like, perhaps there is a note or musical texture that could play on top of

it, independently (again, probably in a movie of its own), that would blend

well and mask the abrupt stop and restart of the sound.  This texture could

have a fade in and out.


I'm not sure there's a good fix for this one.  In Director, one could

manipulate the volume levels of the different sound channels, but not (as

far as I know) in Flash.  I believe there is a way to adjust sound levels

using Java scripting, but that's out of my knowledge base.


Please let us know if you find a solution.  Being an audio guy, I'll

probably tackle this one when I have some time.


-Marc



At 04:15 PM 7/8/98 -0500, you wrote:

>Does anybody know how to get an audio loop to fade out instead of cut off 

>at the end of a scene?  We've got this loop set to fade in to play a 

>hundred or so times, but is there any way to get it to fade out when the 

>viewer clicks on the link to the next page, where we have another one set 

>to start playing?  As it is, it plays until you click the link, then it 

>abruptly cuts off and jumps to the next. 

>

>Thanks, 

>

>Dave T.

>

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