Adjusting Audio And Video Settings - ZeeVee ZyPerMX User Manual

Adjusting Audio and Video Settings

The ZyperMX Video Encoder employs Variable Bit Rate (VBR) encoding when transmitting IP
streams. Specifying the "target" and "maximum" bit rate for both audio and video will define the
limits of IP stream transmission, without overloading the network bandwidth.
1. Login to the Maestro web interface. See
2. Click the AV Encode tab.
3. Click the Video Mode drop-down list to select the video mode. Test can be used to evalu-
ate different HDMI video sources. However, in production environments, make sure that the
Video Mode is set to Normal.
4. Enter the desired "target" video bit rate (in kilobits per second) in the Target Video
Bitrate field. The spinner controls can also be used to set the value. The supported range is
from 2000 to 30000.
Basic Operation
Logging In (page 4) for more information.
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The Target Video Bitrate defines the bit rate at which you want the ZyPerMX to try
and use, as a relative average.
Both STB and PC devices will vary in their ability to handle different bit rates. The ZyPer
MXe STB will handle approximately 8000 kilobits / second. Laptops can handle anywhere
from 2000 kilobits / second to a 10000 kilobits / second. It is recommended to set this value
to 6000. The value can then be adjusted depending upon the capability of the endpoint.
5. Click the Audio Encode drop-down list and select the audio encoding method.
Type Description
LPCM LPCM is a two-channel uncompressed ("lossless") audio format
and should be used when bandwidth is limited at the STB or PC
endpoint. Multichannel HDMI audio is downmixed to two-channel
audio.
AAC AAC is a multichannel compressed ("lossy") audio format that should
be used when multichannel HDMI audio is desired on the decoder
endpoint. Due to the larger bandwidth required by AAC, be sure that
the STB or PC can handle the data stream.
6. Click the Target Audio Bitrate drop-down list and select the desired "target"
audio bit rate.
The Target Audio Bitrate defines the audio bit rate at which you want the ZyPerMX
to try and use, as a relative average.
The default setting is 240 kilobits/sec which provides broadcast-quality IP streams
and is more than acceptable for most STB and PC devices. The Target Audio Bitrate
should only be reduced when a minimal audio stream is required.
In most cases, this will not be necessary.
Basic Operation
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