| 摘要 |
PURPOSE: To provide a digital sound field control coefficient calculation device capable of reducing a hardware scale and calculating a coefficient at high speed. CONSTITUTION: A data storage device 101 storing a transfer function of sound field to be controlled and a target transfer function, a coefficient storage device 102 storing a digital sound field control coefficient and a parameter changing device 103 changing a parameter in the coefficient calculation of the sound field to be controlled are constituted of a personal computer 100, and a sampling frequency converter 111 converting the sampling frequency of the transfer function data and a coefficient calculator 112 calculating the digital sound field control coefficient are constituted of a digital signal processor 110. Since a block where operation amount is much is constituted of the digital signal processor, the high speed arithmetic processing is attained. Since the block where the data inputted/outputted to/from the outside is much is gathered to the personal computer, the data are easily inputted/outputted to/from the outside. The hardware scale is reduced as a whole by dividing it into the digital signal processor and the personal computer. |
