What is signal processing? [President´s Message]

I am returning to this perennial question that, in some sense, I already touched on in my March 2008 president´s message. I am sure we are all often confronted with explaining signal processing to others, including non-experts or the public in general. We may choose to explain it by what we and our colleagues do, as exemplified by the diversity and richness of the work of our Society´s technical committees and the topical coverage of our numerous solely-sponsored or co-sponsored conferences, workshops, and publications. Alternatively, we might turn to the cyber age oracle (Wikipedia) for an intuitive description (I suggest you read it).