Speech intelligibility and loudness assessment in a wireless personal communication. - Hiromi Nagabuchi; Akira Takahashi 001; Mineyoshi Ogawa (EUROSPEECH, 1995)

Performance evaluation of objective quality measures for coded speech. - Akira Takahashi 001; Nobuhiko Kitawaki; Paolino Usai; David Atkinson (EUROSPEECH, 1997)

Perceptual QoS assessment technologies for VoIP. - Akira Takahashi 001; Hideaki Yoshino; Nobuhiko Kitawaki (IEEE Commun. Mag., 2004)

Analysis of Relationship Betweeen Overall Quality and Psychological Factors Affecting High-Quality Speech Communication Services. - Hitoshi Aoki; Akira Takahashi 001 (ICASSP (1), 2005)

Proposal on Objective Speech Quality Assessment for Wideband IP Telephony. - Chiharu Morioka; Atsuko Kurashima; Akira Takahashi 001 (ICASSP (1), 2005)

Objective quality assessment of wideband speech by an extension of ITU-t recommendation p.862. - Akira Takahashi 001; Atsuko Kurashima; Chiharu Morioka; Hideaki Yoshino (INTERSPEECH, 2005)

Conversational quality estimation model for wideband IP-telephony services. - Hitoshi Aoki; Atsuko Kurashima; Akira Takahashi 001 (INTERSPEECH, 2006)

Subjective Quality Estimation Model for Video Streaming Services with Dynamic Bit-Rate Control. - Takanori Hayashi 001; Ginga Kawaguti; Jun Okamoto; Akira Takahashi 001 (IEICE Trans. Commun., 2006)

Impairment Factor Framework for Wide-Band Speech Codecs. - Sebastian Möller 001; Alexander Raake; Nobuhiko Kitawaki; Akira Takahashi 001; Marcel Wältermann (IEEE Trans. Speech Audio Process., 2006)

Objective Assessment Methodology for Estimating Conversational Quality in VoIP. - Akira Takahashi 001; Atsuko Kurashima; Hideaki Yoshino (IEEE Trans. Speech Audio Process., 2006)

Multimedia Quality Integration Function forVideophone Services. - Takanori Hayashi 001; Kazuhisa Yamagishi; Toshiko Tominaga; Akira Takahashi 001 (GLOBECOM, 2007)

QoE Estimation Method for Interconnected VoIP Networks Employing Different Codecs. - Akira Takahashi 001; Noritsugu Egi; Atsuko Kurashima (IEICE Trans. Commun., 2007)

Proposal of new QoE assessment approach for quality management of IPTV services. - Keishiro Watanabe; Kazuhisa Yamagishi; Jun Okamoto; Akira Takahashi 001 (ICIP, 2008)

Standardization activities in the ITU for a QoE assessment of IPTV. - Akira Takahashi 001; David Hands; Vincent Barriac (IEEE Commun. Mag., 2008)

Objective Quality Evaluation Method for Noise-Reduced Speech. - Noritsugu Egi; Hitoshi Aoki; Akira Takahashi 001 (IEICE Trans. Commun., 2008)

Quantifying wideband speech codec degradations via impairment factors: the new ITU-t p.834.1 methodology and its application to the g.711.1 codec. - Sebastian Möller 001; Nicolas Côté; Atsuko Kurashima; Noritsugu Egi; Akira Takahashi 001 (INTERSPEECH, 2009)

Instrumental Estimation of E-Model Parameters for Wideband Speech Codecs. - Sebastian Möller 001; Nicolas Côté; Valérie Gautier-Turbin; Nobuhiko Kitawaki; Akira Takahashi 001 (EURASIP J. Audio Speech Music. Process., 2010)

Parametric Packet-Layer Model for Evaluation Audio Quality in Multimedia Streaming Services. - Noritsugu Egi; Takanori Hayashi 001; Akira Takahashi 001 (IEICE Trans. Commun., 2010)

The proposal of quantification method of speaker identification accuracy for speech communication service. - Noritsugu Egi; Takanori Hayashi 001; Akira Takahashi 001 (ICASSP, 2011)

Multimedia Quality Assessment Standards in ITU-T SG12. - Paul Coverdale; Sebastian Möller 001; Alexander Raake; Akira Takahashi 001 (IEEE Signal Process. Mag., 2011)

No Reference Video-Quality-Assessment Model for Monitoring Video Quality of IPTV Services. - Kazuhisa Yamagishi; Jun Okamoto; Takanori Hayashi 001; Akira Takahashi 001 (IEICE Trans. Commun., 2012)

Performance Comparisons of Subjective Quality Assessment Methods for Video. - Toshiko Tominaga; Masataka Masuda; Jun Okamoto; Akira Takahashi 001; Takanori Hayashi 001 (IEICE Trans. Commun., 2014)

Crowdsourced QoE evaluation of mobile device usage with consideration on user dependence. - Fumiya Kobayashi; Ginga Kawaguti; Hideki Nojiri; Akira Takahashi 001 (APNOMS, 2015)

Collaborative Quality Framework: QoE-Centric Service Operation in Collaboration with Users, Service Providers, and Network Operators. - Akira Takahashi 001; Takanori Hayashi 001 (IEICE Trans. Commun., 2017)