Grass Valley 8921ADT - Manual (Page 18)

18 8921ADT Instruction Manual
Configuration
Audio Processing
Audio processing can be performed on the outputs of AES 1 and AES 2 to
set the output processing mode, the output resolution, gain of each output
stream, and the output sample rate with the Audio Proc controls.
Output Processing Modes
The AES 1 output can be set to one of the following output modes:
• A, B (Pass) – the inputs selected for A and B appear at the AES output
unmodified.
• – A, – B (both phase inverted) – the inputs selected for A and B are both
inverted at the AES output.
• – A, B (A Phase Inverted) – the input selected for the A channel is
inverted while the B channel is non-inverted at the AES output.
• A, – B (B Phase Inverted) – the input selected for the A channel is not
inverted while the B channel is inverted at the AES output.
• A + B, (monaural sum) – the inputs selected for the A and B channels
are reduced in level by 6 dB, summed together, and output on both
channels at the AES output.
• A + B, A–B (MD D/E) – will be a – 6 dB mono sum to A and – 6 dB dif-
ference decode/encode to B.
• – (A + B) (A + B to Both and Phase Invert) – the inputs selected for the
A and B channels are reduced in level by 6 dB, summed together,
inverted, and output on both channels at the AES output.
• 1 kHz (Tone) – a 1 kHz tone is put on both channels at the AES output
with a – 20 dBFS level.
• 400 Hz (Tone) – a 400 Hz tone is put on both channels at the AES output
with a – 20 dBFS level.
• Silence – digital silence is placed on both channels at the AES output.
• A + B, C – the two channels chosen for AES 1 A and B are reduced in
level by 6 dB, summed and sent to the A output. The Ch C audio from
AES 2 will be put on both sides of the Ch B output. In this mode, AES 2
will pass its inputs for C and D as selected with the output processing
control for AES 2.
• A + B, D – the two channels chosen for AES 1 A and B are reduced in
level by 6 dB, summed and sent to the A output. The Ch D audio from
AES 2 will be put on both sides of the Ch B output. In this mode, AES 2
will pass its inputs for C and D as selected with the output processing
control for AES 2.
• A/B ID – A/B identification tone. A 1 kHz continuous tone with a
– 20 dBFS level for 1 second on Ch A followed by a 3 second continuous
tone on the Ch B (keeps repeating).