PURPOSE: To perform the reproduction of a sound field changing successively in real time and without generating a noise by performing an arithmetic processing from a signal stored in a storage means and a signal outputted from a signal processing means with a signal switching means when working procedure is changed.
CONSTITUTION: When sound field data is switched i.e., the working procedure is switched, a system control means 6 changes the content of a working instruction means 4 which instructs the working method of the signal processing means 2 to the working procedure so as to realize the next sound field. Also, simultaneously, such control that a change-over switch 16 can be connected to a second storage means 15 side. At this time, the signal switching means 5 performs such computation that the signal can be switched smoothly by using the signal processed with the signal processing means 2 with the oldest data stored in a first storage means 3 and new working procedure. In such a way, it is possible to change the sound field successively without generating the noise due to the disconnection of the signal when switching.
KAWAMURA AKIHISA
SERIKAWA MITSUHIKO
YOSHIDA HIROKO
SATO KATSUMASA
