Professionals in the music and movie industries are constantly looking for quicker audio processing techniques. Forward and inverse modified discrete cosine transforms (MDCT/IMDCT) are used for the practical applications of hardwired circuiting for MP3 audio encoding and decoding.The given technology uses bilinear algorithms to compute (MDCT/IMDCT) through Type-IV discrete sine transform (DCT-IV). Three different versions of unified hardware architectures for both the short and long blocks are proposed such that the efficiency of the overall encoding/decoding process is increased.
MP3 audio processing computations previously required code specific to the frame size. The algorithm used here is able to solve the problem by unifying the MDCT computations, thereby yielding a smaller code which requires less memory.
A Patent Cooperation Treaty (PCT) application has been filed.