We have had problems with a professional recording company that records for us all year long. We piece audio bits together and sometimes the levels are off and the final product sounds off when put older and newer clips next to each other. We don't record any music, just talking. We hand them "scripts", or sentences split by file, for the talent to say and they return the wav files.
Is there software out there that can analyze a sound file, comparing it to an "original sample", and tell if the levels are off?
Is there a better way to ensure the audio levels always match from session to session?
I have no experience in recording. I am a programmer so I know a lot about computers.