Sagar Mody's Profile

Since the audio usually adds a substantially less amount of file
size in relation to the video bit rate, it is generally recommended to use the
same audio bit rate across all encoded files in a set in order to maintain
audible clarity and consistency as streams switch.

The goal of dynamically switching the stream to a
different bandwidth during playback is to provide a better user experience for
viewing large video files

when the end user is in a network environment
experiencing bandwidth fluctuations.