INTRODUCTION TO COMPRESSION
Compression, bit rate reduction, and data reduction are all terms that mean basically the same thing in this context. An impression of the original information is expressed using a smaller quantity or rate of data. It should be pointed out that in audio, compression traditionally means a process in which the dynamic range of the sound is reduced. In the context of MPEG the same word means that the bit rate is reduced, ideally leaving the dynamics of the signal unchanged. Provided the context is clear, the two meanings can co-exist without a great deal of confusion.
There are several reasons compression techniques are ...
Get The Art of Digital Video, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
