Video conference device

A video conference device, comprising:

• an image picking-up portion which picks up an image;
• a sound emitting portion which emits a sound;
• a sound collecting portion which collects a sound;
• a sound collection signal processing portion which applies a signal processing to a sound signal that is collected by the sound collecting portion to output a sound collecting signal;
• an input signal processing portion which applies a signal processing to an input signal that is input from an outside, and inputs the input signal that is subjected to the signal processing to the sound emitting portion;
• a fixed filter which applies a filtering to the input signal based on a filter coefficient;
• a filter coefficient setting portion which sets a pseudo filter coefficient that simulates a transfer function of an acoustic transfer system which is extended from the sound emitting portion to the sound collecting portion, as the filter coefficient of the fixed filter;
• a post processor which produces a corrected sound collecting signal by subtracting an output signal of the fixed filter from the sound collecting signal;
• and
• an adaptive echo canceller which subtracts a pseudo echo signal, which is obtained by processing the input signal by an adaptive filter, from the corrected sound collecting signal produced by the post processor.