Rion Company Ltd.

Iwate University

Inter-university Research Institute Corporation Research Organization of Information and Systems

National University Corporation, Iwate University

Chiho Haruta

Masahiro Sunohara

Nobutaka Ono

Kiyoshi Nishiyama

Makoto Tateno

Nobuhiko Hiruma

A system identification device for performing fast real-time identification for a system from input/output data includes a filter robust to disturbance, by setting the maximum energy gain from the disturbance to a filter error, as an evaluation criterion, smaller than a given upper limit. The filter estimates a state estimation value of a state of the system.

System identification device, system identification method, system identification program, and recording medium recording system identification program

A sound source separation apparatus includes: a separation-matrix processor that transforms a plurality of observation signals corresponding to sounds being propagated from a plurality of sound sources into a frequency-domain signal group the separation-matrix processor updating a separation matrix based on the frequency-domain signal group and transforming the updated separation matrix into time-series filter coefficients to output; a filter-coefficient transformer that partially removes non-causal components from the filter coefficients to transform the filter coefficients, and a separator that supplies the filter coefficients to a filter group, the separator generating a plurality of separation signals separated from the plurality of observation signals corresponding to the separation matrix.

Sound source separation apparatus

Growing community of inventors

Tokyo, Japan

Chiho Haruta