Ported, Audio input web page – Grass Valley 8925EMB-B v.2.1.6 User Manual
Page 37
8925EMB-B and -U — Instruction Manual
37
Remote Configuration
Audio Input Web Page
Use
this
link
Use the Audio Input web page (
) to select and monitor
the audio input status of the external audio sources to the module. Controls
are also provided for enabling or disabling muting of each individual audio
stream based on certain error criteria.
Audio Input Status
This section provides the following status monitoring fields for the audio
inputs:
•
Stream Name
– reports the name defined for the audio streams on the I/O
Config web page.
•
Stream State
– this field reports the presence of the audio stream as
Present or Not Present (indicating not present or not valid).
•
Sample Rate
– this field reports the sample rate of the audio stream.
•
Mode
– reports if the audio stream is 20 bit or 24 bit.
•
Audio Mode Source
– this field reports if the audio stream is a PCM or
Non-Audio signal.
•
Sync PCM, Low Delay
– the Low Delay control can be enabled to further
reduce the audio processing delay (and audio/video offset) when an
audio input is fully synchronous to the video and has a 48kHz Sample
Rate. Using this control will improve audio quality since the Sample
Rate Converter is bypassed in this state.
When this control is used in conjunction with the Minimize
Audio/Video Offset control on the Video Input web page (
) it is possible to maintain the audio/video delay
close to its initial delay.
•
AES Errors Detected
– when AES errors are detected on the incoming audio
stream, an
Errors
message will be reported in red for the affected audio
stream. Use the
Reset
button to reset the audio error log.
The audio stream may be muted depending on the settings made in the
Audio Input Warnings
section as shown in
. The
8925EMB mutes the audio stream when errors are detected to reduce as
much as possible, embedding distorted audio data that may be audible.
When an AES signal stream is not detected or when errors are detected
and the audio is muted, an alarm will be also raised on the Status web
page
(Audio Input X: Signal Not Detected {or Not Valid})
.