On May 24, Ford Professor of Engineering Al Oppenheim addressed a standing-room-only audience at MIT to give the talk of a lifetime. Entitled “Signal Processing: How Did We Get to Where We’re Going?”, Oppenheim’s personal account of his involvement in the early years of the digital signal processing field included a photo retrospective — and some handheld historical artifacts — that showed just how far the field has come since its birth at MIT and Lincoln Laboratory. Hosted by Anantha Chandrakasan, chief innovation and strategy officer, dean of engineering, and the…