Audio engineers compress music through techniques called perceptual noise shaping, or ____________________.?

When you create a report, it is a good idea to ________ it before you print it or send it in PDF form to someone else

Fill in the blank(s) with correct word

 __________ programming language is the precursor to languages such as C++, C#, and Java.

Fill in the blank(s) with the appropriate word(s).