How to do Alsa configuration (asoundrc) on-the-run while an application is running?

[satmeet]

Hi,
I am new to alsa and need to know if i can contorl the volume on different channels dynamically or on-the-fly by modifying file asoundrc.
We have written the following lines of code-

pcm.mycard {
    type hw
    card 0
    device 0
}

pcm.dshare {
   type dmix
   ipc_key 2048
   slave{
	pcm mycard
	rate 44100
        period_time 1024
        buffer_size 8192
	channels 2
	}
    bindings{
	0 0
	1 1
      }
}

pcm.conf1 {
         type plug
         slave{
	   pcm "dshare"
           channels 2
         }
         ttable.0.0 0.9
         ttable.1.1 0.1
}

This does the volume control statically (one time) the application (mplayer) starts using this device mentioned as 'conf1'. Now, i make following changes to the asoundrc file to change the volume level on the channels while the application is running.

ttable.0.0 0.1
        ttable.1.1 0.9

But the changes do not reflect. I need to restart the application for the changes to take effect.

Is there any way i can achieve this without having to restart the application?
Kindly reply.