Digital signal processing method, digital signal processing apparatus, digital signal recording method, digital signal recording apparatus, recording medium, digital signal transmission method and digital signal transmission apparatus

摘要

In the above-mentioned digital signal processing method providing the base of the invention, in the case where the total number of bits assigned to all the two-dimensional blocks fails to coincide with the bit rate specified in the coding format as a result of converting the bit allocation amount into an integer in calculating the bit allocation amount for each of the time-frequency two-dimensional blocks, then in order to attain coincidence therebetween, the maximum quantization error that may occur in the two-dimensional block for each of the time-frequency two-dimensional blocks is calculated based on the maximum signal component in the two-dimensional block or the normalized data and the assigned bit amount provisionally calculated, and the maximum quantization error is regarded as the degree of bit requirement for each two-dimensional block, so that the bits are adjusted based on the degree of bit requirement.