The multimodal multipulse excitation vocoder. - Takahiro Unno; Thomas P. Barnwell III; Mark A. Clements (ICASSP, 1997)

An improved mixed excitation linear prediction (MELP) coder. - Takahiro Unno; Thomas P. Barnwell III; Kwan K. Truong (ICASSP, 1999)

Improved frame erasure concealment for CELP-based coders. - Juan Carlos De Martin; Takahiro Unno; Vishu Viswanathan (ICASSP, 2000)

An embedded adaptive multi-rate wideband speech coder. - Alan McCree; Takahiro Unno; Anand K. Anandakumar; Alexis Bernard; Erdal Paksoy (ICASSP, 2001)

A 4 kb/s hybrid MELP/CELP speech coding candidate for ITU standardization. - Alan McCree; Jacek Stachurski; Takahiro Unno; Ali Erdem Ertan; Erdal Paksoy; Vishu Viswanathan; Ari Heikkinen; Anssi Rämö; Sakari Himanen; Peter Blöcher; Oliver Dressler (ICASSP, 2002)

A Robust Narrowband to Wideband Extension System Featuring Enhanced Codebook Mapping. - Takahiro Unno; Alan McCree (ICASSP (1), 2005)