FS1-X v1.1
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causes video contrast shifts. You can avoid these shifts if you maintain one range of values
throughout your system.
14.0 AES/EBU SRC
Mode
This parameter controls the mode of the audio sample rate converters for AES/EBU input
audio pairs.
In
Auto
mode, normal PCM audio passes through the Sample Rate Converters and gets
converted, as appropriate. AES channels in which the
non-audio
flag is set in the Channel
Status Word are automatically detected and allowed to bypass the Sample Rate
Converters; the signal passes unaltered and the existing data is preserved.
In
Manual
mode, the sample rate converters are turned ON or bypassed manually for
each AES pair using the following Channel Pair menus. If a channel pair is set to Bypass,
the FS1-X leaves embedded audio as is, bypassing sample rate conversion. This is useful
for Dolby® 5.1 embedded audio and other applications where you do not want sample
rate conversion to occur.
14.1–14.8 AES/EBU
SRC
This group of parameters controls audio sample rate conversion on AES/EBU input audio
channel pairs 1/2, 3/4, 5/6, 7/8, 9/10, 11/12, 13/14, and 15/16. When AES/EBU SRC Mode
is set to
Manual
, these menus become available, allowing each channel pair to be set
manually to
On
or
Bypass
.
On
is the default setting in which audio is rate-converted and synced with video (SRC is
applied).
Bypass
is available for use when Dolby
®
5.1 and similar schemes need to be preserved and
the audio data passed unaltered (no SRC is applied).
Set these parameters to
Manual
and
Bypass
only if BOTH the following items are true:
• You want to pass unaltered digital encoded audio from either an embedded or AES
Input to an embedded and/or AES Output.
• You have the embedded or AES input genlocked to the FS1-X output. In other words,
the encoded audio will not survive the frame-sync function (dropping or repeating
frames) so it needs to be set to lock to the input. You can lock to a reference only if that
reference is driving both the FS1-X and the upstream source of the embedded or AES
input to the FS1-X.
Full (default)
SMPTE
Selects an HDMI luminance output range of 0-255.
Selects an HDMI luminance output range of 16-235.
Auto (default)
Manual
The system decides how to handle sample rate conversion. AES
signal pass normally through the Sample Rate Converters, unless a
non-audio flag is set in the Channel Status Word.
The FS1-X determines what to do about audio sample rate
conversion on a channel pair-by-pair basis, determined by the
following Channel Pair menu settings.
On (default)
Bypass
Audio sample rate conversion (SRC) is applied to the affected
channel pairs and keeps the video and audio synchronized.
Audio sample rate conversion (SRC) is NOT applied to the affected
channel pairs. The signal is passed through unaltered.
