Remove unnecessary method
Add documentation for class
Rename variable to self
Move the function to SampleBuffer class

Also removes the brickwall limiter which was present, but disabled, in
previous versions. If we want to have a brickwall limiter again, the
preferred way to do it will be to make an internal plug-in.
Renaming variables to self
Add documentation for class
Add the documentation for class
Move function to more appropriate class
Add documentation for class
Add class documentation
Add class documentation
Add class documentation
Formatting