Sonnox Fraunhofer Pro-Codec - Manual (Page 39)

5.9 HD-AAC 5 THE PRO-CODEC PLUG-IN
HD-AAC 16 bit with CORRECT dither and truncation prior to the Plug-In. Internal Trim is
ENABLED. HD-AAC 16 bit internal dither is DISABLED.
The image above shows a correctly dithered signal input to the plug-in, but the internal
trim is non-zero. The bottom segment of the bit meter is flashing red to indicate an error
condition.
If the internal dither is enabled, the bit meter indicates that the signal is correctly treated
(the bottom segment of the meter is empty) and the active dither is applied internally
(indicated by a green border around the segment.
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