Speech-dispatcher and separate settings

[Linux for blind general discussion]

Okay this is something I've been wondering, since by default 
speech-dispatcher is insanely loud. So....here's what I'm aiming for.

1. Adjust the speech volume on the login screen via Lightdm to be 
comparable to Orca's minimum volume


2. Do the same for Chromium when it's using speech-dispatcher, as again 
it's louder than everything else, which makes VOIP calls hard to understand

Now. I've tried adjusting the default volume in speechd.conf and it 
hasn't quite done what I'm expecting. Is there an easy way to do this. I 
did spy espeak in the sound settings under applications, though I'm 
unsure if that's for speech-d or Orca's own espeak or ChromeVox via 
speech-dispatcher.