Encoder Configuration
VBrick 9000 Encoder Admin Guide
73
Audio Rate Settings
To access the
Audio Rate Settings
fields:
1. Navigate to
Encoder Configuration
>
Audio
>
Audio Rate Settings
section.
2. Click the (+) expand icon to access additional fields and settings and the
Load Template
button.
The encoder can encode multiple instances of live audio for devices with varying bandwidth
requirements (e.g. HD-TVs, PCs, and smartphones). The lower area of the Audio page has a
set of parameters that can be controlled by preconfigured templates. Use the
Load Template
button to populate the Audio Template Settings with preconfigured audio values. The audio
templates vary depending on the selected
Audio Source
(Stereo, Mono, or Dual).
Med Fidelity
is the default template.
Field
Description
Rate n Enable
Audio Rate 1 is enabled by default and required. Audio Rates 2 and
3 (if enabled) use all of the same parameter settings as Audio Rate 1
except for
L+R Bit Rate
.
Template
This read-only field shows the template (if
any) that is currently applied. The
templates available when you click
Load
Template
will vary depending on how the
audio is connected (
Digital
or
Unbalanced
). See Table for a list of all
templates and settings. If a template is
applied it will display the template name
(e.g.
High Quality Voice
) or
Custom
Settings
(if you made changes after
initially selecting a template). Select
Load
Template > None
to clear a "Custom
Settings" message.
Encode Stereo Inputs
as Mono
Any stereo source containing different audio material will be mixed
down to mono. The net result is that the stereo effect is lost but the
encoding efficiency is doubled thereby reducing network
bandwidth while retaining sound quality.
AAC-HE
AAC-HE is a highly-efficient audio compression technology that
uses spectral bandwidth replication (SBR). AAC-HE is optimized
for better quality at lower bit rates.
Summary of Contents for 9000 Series
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