Digital quasi peak detector for simulation of the subjective perception of the human ear or eye to interference impulses in audible or visual signals respectively has wide frequency range and is time and temperature stable

摘要

Quasi-peak-detector (1) for detecting the weighted peak value of an envelope curve (the quasi peak) of a signal (S in). The detector comprises a digital charging filter (4) that simulates the charging of a capacitor (C), a digital discharge filter (8) that simulates the discharging of a capacitor and a series connected digital damping filter (6) that simulates the damping behavior of a measurement instrument.