Vaddio AV Bridge EasyUSB UC Interoperability FAQs - Page 27

3.2 EasyTalk USB Audio Solution Symptom No audio out Amp No Audio Sent to Far-­‐End No Audio Heard when connected to TV UC Client Mute and EasyMic Indicator Not Sync EasyMic audio heard out MAMP MAMP not recognize as Sound Device Far-­‐End Hears Echo Echo or choppy audio when line out connected to external amp Potential Issue AMP went into overload protection. UC client microphone is muted HDMI Audio Input selected on LCD Operating systems do not support acknowledgement of Mute from USB device EasyMic heard out Loudspeaker DIP Switch 8 Enabled Windows Register conflict with MAMP MAMP not selected as Playback Device Volume changes occurring on external amp. Resolution Power cycle MAMP and it will reset internal class-­‐D amplifier Some UC clients (Skype) have their own Mute function that is independent of the USB Record Mute The line output of the Mixer/Amp can be used to connect to LCD Display to use it internal speakers. However, some LCD Displays will automatically switch to the HDMI Input audio instead of the RCA input. In this configuration, make sure the RCA input on the LCD Display is selected when connected to Mixer/Amp. Both Windows and Mac Operating systems will not recognize a mute activation originating from the EasyMic. Therefore, the EasyMic Pod may show microphone are muted but software shows audio is not mute. However, audio will actually muted. No workaround is available. Windows 7 has a sound property ('Listen') that allows the record device to be looped to the playback device. Disable if this is enabled. DIP 8 places the MAMP in firmware update mode and will disable the USB functions so PC will not recognize device. Windows stores all connected USB devices in the registry. If a firmware update changes certain USB parameters, it can cause windows to get confused and not be recognized as EasyUSB device. To resolve, uninstall the UVC driver and reconnect the EasyUSB. This process clears the registry of the old parameters associated with the device. EasyMic AEC needs speaker reference to work properly. MAMP must be selected as both Record and Playback device otherwise the far-­‐end may hear echo. Volume changes for room's speaker system that occur external to the MAMP will cause AEC to re-­‐ adapt and may result in short period of echo or suppression. Vaddio - 131 Cheshire Lane - Suite 500 - Minnetonka - MN - 55305 - www.vaddio.com ph: (763) 971-­‐4400