AudioTool v7.2 Apk The deciBel meter uses IIR filters and exponential averaging to calculate Flat, A and C weighted response at speeds of Fast, Medium and Slow speeds.
A pair of cursors can be shown on the RTA and Chart Recorder displays: each can be moved to any position, and will display the SPL & time/frequency values there. Initially, both cursors are positioned mid-screen simply drag them to a new position with the fingertip. The cursors can be turned on and off in the Menu.
The Chart Recorder shows a moving trace of the SPL measurements over the last few minutes.
AudioTool v7.2 Apk