Importance of Precision on Performance for Digital Audio Filters

摘要

Digital audio systems are unlike conventional analog systems in which signals can be any value between aminimum to maximum and occur continuously in time. Digital audio systems use finite precision inrepresenting signals and coefficients and in performing arithmetic operations. Consequently, systemperformance is determined by the precision that is used throughout the system. This paper discusses the factorsthat influence the performance of Infinite Impulse Response filters in high performance audio applications usingfixed point arithmetic.