Signal Processing

Discrete-Time Signal Processing

The title of this article is Discrete-Time Signal Processing, although the term digital signal processing (with the abbreviation DSP) is much more common. Both types of signals are discrete in the time dimension, in the sense that they are sequences of numbers. The difference is that a digital signal is… read more

Submitted on 23 June 2013

How to Record a Lion in a Concert Hall

Promenadikeskus concert hall [image: Helsinki University of Technology]

I’d like to kick off a series of articles on signal processing with the answer to a very practical question: How to find out how a lion sounds in a concert hall. I’ll deal with more theoretical subjects in later articles. Smuggling an actual lion unseen into a concert hall seems unlikely to succeed, and might… read more

Submitted on 12 May 2013