In our tests we founded that output audio stream has rather low volume.
When some participants start conferensing - volume form each participant becomes lower(even without mixing)
Is there any way to increase output or input audio volume? W couldn't find any property in senver or client size - but it will come serious problem soon because for example flash plugin or skype conference has better volume and we don't know what to do with it
Currently the only way for the volume control is on the client side.
We haven't exposed API for that yet. You need to increase or decrease the audio volume from client application for now.
And, we will definitely add this feature into our development backlog. Thanks for bringing this up.