Audio Display BASICS

Audio Phase and Polar Display Basis

 

 

 

 

 

Polar Display

The display shows the audio stereo signal plotted on the 2 axis provided.

Scales

Up to 6 different, standardised international scales are available, selectable by menu. All scales are calibrated according the relevant standards body

PPM

The PPM (Peak Program Meter) will indicate the level of the audio signal for each channel. The PPM has normally an integration time of 10mSec

Phase Meter

The Phase correlation meter displays the average phase relationship between two audio signals, and indicates
mono, stereo, or reverse Phase on a centre zero scale

Peak hold

An indicator for each audio bar showing the maximum value reached. With an adjustable reset delay time

PPM Scale           

          Digi Scale

Nordic Scale           

          VU Scale

EBU Scale           

          DIN Scal

 

          

          EXP Scal

Line up level (0dbu = 0.775 v rms

UK PPM = 4

DIGI = 18, (USA - 20)

Nordic = 0

VU = -4DB (from -20db)

EBU = 0

DIN = -9

 

 




    

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© Hamlet Video International 28/09/2006