Voice-activated powered wheelchair for severely disabled persons

IEICE Electronics Express

Hiroaki Kojima¹  Soo-young Suk¹ 

[1] Speech Processing Group, Information Technology Research Institute, AIST

关键词: non-voice rejection;    voice activity detection;    YIN;    fundamental frequency estimator;    powered wheelchair;   

DOI  :  10.1587/elex.4.569

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)In this paper, we consider that non-voice inputs such as coughing and breathing and spark-like mechanical noise should be rejected and that the system must recognize speech commands affected by disability, including specific pronunciation speed and frequency, to achieve a system that can operate powered wheelchairs safely using a severely disabled person's voice in a real environment. We therefore propose inarticulate speech recognition using a multi-template dictionary to cope with the pronunciation variation and perform non-voice rejection using both YIN-based fundamental frequency extraction and reliability in preprocessing.

【 授权许可】

Unknown