Nearly all musicians know this as “portamento”, a term that has been used for hundreds of years. AdvertisingNow an MIT student has invented an algorithm that produces a portamento effect between any two audio signals in real-time. In experiments, the algorithm seamlessly merged various audio clips, such as a piano note gliding into a human voice. His paper describing the algorithm won the “best student paper” award at the recent International Conference on Digital Audio Effects, MIT said. Now, Henderson has applied optimal transport to interpolating audio signals, or blending one signal into another, MIT said.

Source: Indian Express September 30, 2019 03:45 UTC