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Last published : Oct 16, 2026
During a Skype for Business call, a robotic voice can be heard. The issue occurs when the HDX™ RealTime Optimization Pack is in fallback mode.
With this enhancement, you can prioritize camera encoding over GPU encoding. However, we do not recommend changing the default behavior. This enhancement is helpful in scenarios where a video must capture a greater level of details in a large room (for example, a conference room).
If a user holds a call when there is already a call on hold, the Music on hold either becomes distorted or plays at a faster speed.
When you click Citrix HDX RealTime Media Engine in the Mac System Preferences, this error message might appear:
Could not load Citrix HDX RealTime Media Engine preferences pane.
