Looking at the waveforms in the audio clips you are showing, the clips are almost completely silent, so anything you try with volume and automation won't have effect. You need to make sure that your recording is significantly loud first.
That being said, you cannot change the volume of a left or right channel in a single stereo file. You would either need to use balance or better, split the stereo track into two mono tracks. But again, this has no use on the clips you are showing.
That being said, you cannot change the volume of a left or right channel in a single stereo file. You would either need to use balance or better, split the stereo track into two mono tracks. But again, this has no use on the clips you are showing.