Networked VGA Grid User Guide
Configure encoding (HD Encoder channels)
1. Login to the Admin panel as
admin
.
2. Click
Encoding
for the your channel; the encoding configuration page opens.
3. Scroll to the
Audio settings
section.
4. Ensure the
Enable audio
checkbox is checked.
5. Choose an audio codec from the
Audio format
drop-down menu. A table at the end of this procedure
gives details about each option.
6. Select stereo or mono from the
Audio channels
drop-down, depending on your needs.
7. Select an
Audio bitrate
from the drop-down menu. The table at the end of this procedure gives some
guidance on audio bitrates.
8. If all your changes are complete, scroll to the bottom of the page and click
Apply
.
Table 28
Audio codecs and bitrate guidance
Value
Description
AAC
AAC is the default audio codec.
This codec is comparable to MP3, and may have better sound quality with a similar
bit rate. Supported values are 16, 22, 44 and 48K kHz. Most digital signals (HDMI
or SDI sources) use 48 kHz audio.
Matching the encoded level with the source level provides the best sound quality
by avoiding audio resampling. For analog signals, 44 kHz provides higher sampling.
The maximum bitrate for mono encoding of a 44 kHz signal is 264 kbps. For stereo,
320 kbps is supported.
MP3
MP3 provides a common audio format for audio storage.
Supported values are 22 kHz, 44 kHz and 48 kHz. Most digital signals (HDMI
or SDI sources) use 48 kHz audio. Matching the encoded level with the source level
provides the best sound quality by avoiding audio resampling. For analog signals,
44 kHz provides higher sampling.
Flash (FLV) doesn't support 48 kHz MP3 audio. When selecting this
value you'll need to use a media player (or install ASF browser plugins)
to preview your channel.
PCM
Pulse Code Modulation (PCM) is a standard for digital audio in computer and other
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