A window to the SP community [From the Editor]

In October 1931, as the world grieved the passing of Thomas Edison, countless individuals, communities, and corporations dimmed their lights to honor this great inventor through one of his most significant technological contributions. Since then, science and technologies have evolved at an unprecedented pace. Numerous specializations have formed, including our field of signal processing. Technological advances have affected our everyday life so much that it is difficult to imagine how to get by without them. So what would a day without signal processing be like?