We have an audio recording of a phone call, but it was made using a free trial of the software. That means there is a voice repeating constantly in the background that "this is recorded using a free trial of our software". It is very annoying and makes it hard for us to hear what was being said.
Can you help us by removing this recorded message that plays on a loop through the whole file?
The audio is about an hour long. What would you charge, and how long do you need to get it cleaned up so we can hear just the conversation we were recorded, and nothing else?