IBM Support

Audio/Video from View Client is choppy or jittery

Troubleshooting


Problem

Audio/Video feed from a USB microphone or USB camera connected to a View Client can be choppy or jittery. This is a result of the use of the USB redirection channel for real-time functions such as audio or video.

Symptom

A video image may jerk back and forth, or seem to have a very low frame rate. The audio may sound like a bad connection.

Cause

This results because the USB redirection uses several back and forth communications and acknowledgements for each piece of the audio/video data stream. This is an ineffective way to transmit audio/video data and is NOT a supported method.

Environment

VMware View® client with USB devices, connecting to View desktop VM

Resolving The Problem

In order to correct this, the user must be using View 5.3, and a View Client which can accept the Real Time Audio Video (RTAV) portion of the View 5.3 Feature Pack. This means it cannot be implemented with a zero client, and may only be compatible with some thin clients.


https://www.vmware.com/pdf/horizon-view/horizon-view-53-feature-pack-document.pdf

Additionally, when connecting the View Client to the desktop VM, you must ensure that the microphone/camera is NOT connected via USB redirection. If it is not, then the RTAV component of the feature pack should establish the connection for those items to the target. Additional configuration instructions are available in the PDF document.

RTAV client side components are included in View Client 2.2 and beyond. The RTAV components must also be installed within the desktop VM.

There is also a Fling application from VMware® that can be used to "test" the audio/video capabilities of the device at the client end, and again at the desktop VM end of the connection.
https://labs.vmware.com/flings/real-time-audio-video-test-application

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Document Information

Modified date:
27 February 2020

UID

isg3T1020757