Robust Speech Recognition for Unknown Communication Channels Pont-à-Mousson, France April 17-18, 1997

Issues Relating to the Future of ASR for Telecommunications Applications

Shigeki Sagayama, Kiyoaki Aikawa

NTT Human Interface Laboratories, Kanagawa, Japan

Issues relating to automatic speech recognition (ASR) are discussed with respect to applications in the telecommunications area in the near future. As a preliminary, we introduce an interesting discussion from a past conference in Japan about what is hindering the spread of ASR. Then, some relatively new robustness issues in telephone-based ASR applications are discussed. These include accurate voice/noise discrimination, and multiple microphones, utterance verification/rejection for flexible vocabulary systems, breath noise and hand noise, instantaneous adaptation to environmental noise, a spelling method for Japanese Kanji texts, dialog control issues, distransparency of ASR systems, children's voices, HMM training with localized data, adaptive dialog strategy.

Full Paper

Bibliographic reference.  Sagayama, Shigeki / Aikawa, Kiyoaki (1997): "Issues relating to the future of ASR for telecommunications applications", In RSR-1997, 75-82.