MPEG-4: FlasK MPEG/Divx's Improved Coding

Expanded Audio Functions: Increasing The Volume

However, balancing volume takes up additional time for calculation. In addition, DVD movies with 4 or 5-channel audio can have the relationship between "front" and "back" changed. This function in particular improves the sound considerably, since sound output is in stereo anyway.

Also, the function "normalize" is very heavy on the calculating side, since it analyzes the entire video and audio data input and stores it on the hard drive with the new changes.