Memory and computationally efficient psychoacoustic model for MPEG AAC on 16-bit fixed-point processors
When MPEG AAC encoders are implemented on 16-bit fixed-point processors, the constraints of low complexity and limited data word length become challenges, especially on the critical algorithm, the psychoacoustic model (PAM). This paper proposes a very efficient PAM design, concerning the reduction of memory requirement and computational complexity while maintaining the audio quality.