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Chapter 2: Virtual KVM Client (VKC) and Active KVM Client (AKC)
34
Audio Bandwidth Requirements
The table below details the bandwidth requirements to transport audio
under each of the selected formats.
Audio format
Network bandwidth requirement
44.1 KHz, 16bit stereo
176 KB/s
44.1 KHz, 16bit mono
88.2 KB/s
2.05 KHz, 16bit stereo
88.2 KB/s
22.05 KHz, 16bit mono
44.1 KB/s
11.025 KHz, 16bit stereo
44.1 KB/s
11.025 KHz, 16bit mono
Audio 22.05 KB/s
In practice, the bandwidth used to connect audio to a target is higher due
to the keyboard and video data consumed in opening and using an audio
application on the target.
A general recommendation is to have a least 1.5MB of connection before
running Playback and Capture. However, high video content, full color
connections at high target screen resolutions consume much more
bandwidth and impact the quality of the audio considerably.
There are a number of recommended client settings that will reduce the
impact of the video on audio quality at lower bandwidths:
Connect Audio playback at the lower quality formats. The impact of
video consuming bandwidth is much less notable at 11k connections
than at 44k
Set the connection speed under Connection Properties to a value
that best matches the client to server connection.
Set the color depth to as lowest value as possible. Reducing to 8 bit
color considerably reduces the bandwidth consumed.
Set Smoothing, under Connection Properties, to High. This will
improve the appearance of the target video by reducing displayed
video noise.
Set the Noise Filter, under Video settings to its highest setting, 7
(highest value). Less bandwidth will be used for target screen
changes.
Connecting to Digital Audio
To connect to an audio device from the Virtual KVM Client
(VKC) or Active KVM Client (AKC):
1. Connect the audio device to the remote client PC prior to launching
the browser connection to the KX II 2.4.0 (and later).