[LAU] "ducking" software

[Jack O'Quin]

On Wed, Nov 12, 2008 at 11:47 AM, Josh Lawrence <hardbop200 at gmail.com> wrote:
> Hello,
>
> A friend of mine just sent me this email.  I'm drawing a blank, so I
> thought I would throw it to the list and see what happens:
>
> --[begin email
>
> He is hosting a shoutcast server with music he's streaming.  He
> wants to duck his streaming media every 30 seconds and play a
> prerecorded file from a directory (think hold music with commercials
> playing every 30 seconds).
>
> You have any ideas in mind?  Do you know of any software that will do this?

I believe that "ducking" in traditional analog audio was done using a
compressor with a side-chain input from an override channel.  When the
announcer talking is heard in the side-chain, the compressor turns
down the volume on the normal program.

That may not be quite what he wants.  Perhaps he would rather pause
and then resume the normal program.  I might not call that "ducking",
but the terminology is not important.

It would be a good idea to get a clear specification of his requirements.
-- 
 joq