Abstract: A signal processing device includes: a sound adjustment amount calculation unit which calculates a sound adjustment amount for adjusting sound characteristics of each channel to a predetermined sound characteristic for each channel, using a sound signal that is obtained by collecting the outputs of each channel; an evaluation value calculation unit which calculates a coefficient allocation evaluation value for allocating a size of a filter coefficient necessary for the sound adjustment of the respective channels for each channel, based on the sound adjustment amount that is calculated by the sound adjustment amount calculation unit; and a filter coefficient calculation unit which calculates the filter coefficient for each channel using the coefficient allocation evaluation value that is calculated by the evaluation value calculation unit.

Abstract: An information recording apparatus (300) comprises a first acquiring means that acquires both (i-1) control information (UDF-VAT) for controlling the order of recording or reproducing recorded information and (i-2) virtual reference information (VAT) that can be determined by the control information and by an address indicative of the position of a recording area in which the recorded information is recorded; (ii) a first converting means that converts the acquired control information and virtual reference information to first control information (which is an element of UDF Bridge: File System—UDF 1.

Abstract: A dispersion composition including a colorant and an acrylic polymer having the furan structure, and an ink for an ink jet printer including such a dispersion composition. This dispersion composition can achieve the satisfactory stability of the colorant irrespective of the kind of the colorant, and allows the inks to be formulated to have the same composition. The ink for an ink jet printer has good storage stability and printing stability.

Abstract: A dispersion composition comprising a colorant and an acrylic polymer having the furan structure, and an ink for an ink jet printer comprising such a dispersion composition. This dispersion composition can achieve the satisfactory stability of the colorant irrespective of the kind of the colorant, and allows the inks to be formulated to have the same composition. The ink for an ink jet printer has good storage stability and printing stability.