Title :
Auditory system in a personal robot, PaPeRo
Author :
Sato, Miki ; Sugiyama, Akihiko ; Ohnaka, Shin´ichi
Author_Institution :
Lab. of Media & Inf. Res., NEC
Abstract :
This paper presents implementation and evaluation of the auditory system in a personal robot, PaPeRo. The system consists of direction of arrival estimation, noise cancellation, and echo cancellation. It is implemented on PaPeRo which is operated by Windows XP on a Mobile Pentium 4-M 1.6 GHz chip. Evaluation results with recorded signals in the real environment demonstrates 40% higher source-localization accuracy as well as 65% and 71% higher speech recognition rates in noisy environment and during robot utterances. PaPeRo with this noise canceller is on exhibition at the 2005 World Exposition (EXPO 2005), Aichi, Japan
Keywords :
direction-of-arrival estimation; echo suppression; robots; speech recognition; 1.6 GHz; 2005 World Exposition; Mobile Pentium 4-M chip; Windows XP; auditory system; direction of arrival estimation; echo cancellation; noise cancellation; personal robot; signal recording; source-localization accuracy; speech recognition rates; Acoustic noise; Adaptive filters; Auditory system; Direction of arrival estimation; Echo cancellers; Microphones; Noise cancellation; Robots; Speech recognition; Working environment noise;
Conference_Titel :
Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-7803-9459-3
DOI :
10.1109/ICCE.2006.1598289
