METHOD OF MANAGING A MEMORY AND METHOD AND APPARATUS OF DECODING MULTI CHANNEL DATA

摘要

A method of managing a memory and a method and an apparatus of decoding multi channel data are provided to reduce memory capacity used for storing a matrix. The first matrix application unit(21) computes the first matrix with an input signal in the second domain to generate a direct signal and signals to be de-correlated. The first matrix is generated by using the first temporary matrix about a time slot of the first domain and a frequency band. A de-correlation unit delays and de-correlates signals to be de-correlated by a predetermined delay time. The second matrix application unit(23) computes the second matrix, the direct signal and the signal to de-correlated and residual signals corresponding to the second matrix, the direct signal and the signal to de-correlated in the second domain to generate a multi channel signal. The second matrix is generated by using the second temporary matrix about the time slot of the first domain and a frequency band.