Qualis Audio Sentine, User Manual, Page: 75 / 108

Settings page 69
Downmixed Signals In Error If
Within Each Octave Controls the way 1/30th octave bins are combined
and compared to the level threshold. Peak uses the worst case
signal loss for any bin. Average uses the average loss within
each octave.
Level Changes By Sets the error threshold for changes in the program
when downmixed. If the level in any included octave band is
reduced by this amount or more an error will be generated. The
value may be set between −4 and −15 dB in 1 dB steps.
At or Above Sets the lowest octave included in the compatibility anal-
ysis. Downmix compatibility problems are assessed in this
octave and above. The choices are 63, 125, 250 and 500 Hz.
Since these are octave centers, 500 Hz will include frequencies
beginning at approximately 350 Hz, 250 Hz will include compo-
nents as low as 175 Hz, etc.
Up To and Including Sets the highest octave included in the compati-
bility analysis. Downmix compatibility problems are assessed
in this octave and below. The choices are 2, 4, 8 and 16 kHz.
Since these are octave centers, the 2 kHz selection includes
frequencies through approximately 2.8 kHz, the 4 kHz selection
will extend to approximately 5.6 kHz, etc.
For Longer Than Sets the duration that a signal must exceed the speci-
fied level to generate a downmix error. The choices are 1, 3, 10
or 30 seconds.
LFE Phasing Error If
Level Changes By Sets the error threshold for changes in the low fre-
quency program content when the LFE is included in the down-
mix. If the level between 20 Hz and 200 Hz is reduced by this
amount or more an error will be generated. The value may be
set between −4 and −15 dB in 1 dB steps.
For Longer Than Sets the duration that LFE phasing problems must exist
to generate an error. The choices are 1, 3, 10 or 30 seconds.