Patent ID: 8098846

Claim:
An apparatus for generating a sound field using a block convolution, the apparatus comprising: a first fast Fourier transformer that performs a fast Fourier transform on each input signal block; a time domain auditory filter that filters maskees if a sound pressure of the maskee is equal to or less than a specific threshold at a specific time delay Δt upon inputting each room impulse response block in a time domain, in consideration of a masking effect that can not be sensed by a human auditory sense if the sound pressure of the maskee is equal to or less than the threshold according to the time delay between a masker and the maskee; a second fast Fourier transformer that performs a fast Fourier transform on each room impulse response block passing through the time domain auditory filter; and a multiplier that multiplies each input signal block through the first fast Fourier transformer by each room impulse response block through the second fast Fourier transformer.