Specifications

2.71
Applications Manual
© 2003-2005 Prism Media Products Ltd
Revision 1.11Prism Sound dScope Series III
Method
Play track 41 and then click the
[OK]
button to start the test. When prompted, play track 42 and then
click the
[OK]
button.
The Dolby Digital test tracks are such that when the correct downmix is performed, the signals in the
L,R,C,Ls & Rs channels cancel producing very little output. The dScope measures the outputs of
each channel using a 400Hz band-pass filter to eliminate the effects of noise.
Specification
Either track 41 or track 42 should result in complete cancallation of the signals. If this is the case, then
Downmix has been implemented correctly.