Sound masking by a low-pitch speech-shaped noise improves a social robot's talk in noisy environments - Hamed Pourfannan; Hamed Mahzoon; Yuichiro Yoshikawa; Hiroshi Ishiguro (Frontiers Robotics AI, 2023)

Expansion in speech time can restore comprehension in a simultaneously speaking bilingual robot - Hamed Pourfannan; Hamed Mahzoon; Yuichiro Yoshikawa; Hiroshi Ishiguro (Frontiers Robotics AI, 2022)