I want to check the quality and sound volume of all my mp3 files.
Are there any processes to validate them in bulk?
I don't want to open each file individually and play them to check their quality and prefer a batch method.
How can I do this?
Some mp3 libraries/tools support this task, have a look at this for starters. If you want to write your own tool, I believe that many of the various LAME encoder api's support encoding.
There are also a number of other promising looking links that come up when googling 'mp3 validation'.