Microphone as Sensor in Mobile Phone Performance.

Many mobile devices, specically mobile phones, come equip- ped with a microphone. Microphones are high-delity sen- sors that can pick up sounds relating to a range of physi- cal phenomena. Using simple feature extraction methods, parameters can be found that sensibly map to synthesis al- gorithms to allow expressive and interactive performance. For example blowing noise can be used as a wind instru- ment excitation source. Also other types of interactions can be detected via microphones, such as striking. Hence the microphone, in addition to allowing literal recording, serves as an additional source of input to the developing eld of mobile phone performance.