(void)updateMeters{
[[EWAVManager sharedManager].recorder updateMeters];
CGFloat normalizedValue = (float)pow (10, [[EWAVManager sharedManager].recorder averagePowerForChannel:0]/30);
[self.waveView updateWithLevel:normalizedValue];
}
Update the waveform only by recorder, which is wrong
The waveform often shows a stagnated state when