Abstract: A video conference device capable of suppressing a processing burden of an echo canceller in such a situation that speakers, microphones, and a camera are arranged in close vicinity of a monitor is provided. A preliminary filter portion 18 is provided in a preceding stage of an echo canceller 19. The preliminary filter portion 18 has an LPF 181, a fixed filter 182, and a post processor 183. A controlling portion 14 sets a filter coefficient corresponding to a sound collecting beam signal that a signal selecting portion 17 selected, in the fixed filter 182. This filter coefficient is set to simulate a transfer function of an acoustic transfer system that feedbacks from the speakers to the microphones. A component of a low frequency band (e.g., 1 kHz or less) out of sound signals (input sound signals) being input into the speakers is input into the fixed filter 182, and a pseudo signal is produced.

Abstract: A voice conference system capable of realizing a talk session with an unbounded feeling of presence in session in response to positions of conferees who are seated at mutual voice conference devices is provided. A conferee 201A is seated in a speaker SP1 direction of a voice conference device 1A and also a conferee 203A is seated in a speaker SP3 direction in a talk session room 100A, and a conferee 202B is seated in a speaker SP2 direction of a voice conference device 1B and also a conferee 204B is seated in a speaker SP4 direction side in a talk session room 100B. When the conferee 201A talks, voice collecting beam signals picked up by microphones MC8, MC9, MC10 of the voice conference device 1A are in excess of a predetermined threshold value and are selected.