12 Apr
2008
12 Apr
'08
7:32 p.m.
Fons Adriaensen:
I've never seen a twin VU
Wouldn't physical "twin VU's" be terribly difficult to build because
of magnetic correlation?
The main difference to meterbridge is that Jmeters has
the
correct ballistics for both the VU and the PPM.
The VU meter measures the average of the absolute value of
the signal, 'average' meaning a second order filter that
reaches 99% in 300ms and overshoots between 1.0 and 1.5%.
It is calibrated to indicate 0dB for a sine wave at -10dB
w.r.t. digital full scale (which is +/-1 peak in this case).
Are these numbers modelled after a real device?
Wolfgang