Most delays below 45ms will not create visible lipsync issues, and higher latency may or may not be noticeable to all viewers. The recommendation for lipsync in film is about 22ms the recommendations for television are about 45ms. The total added latency is close to the sum of those two buffers, so you want to try and find the combination of buffer settings that creates the lowest total latency, but doesn't cause audio drop outs as described above. If you're experiencing these issues, you can adjust the two buffers listed under Clicks, Pops, and Static above. For pure audio applications, this is irrelevant, but for streaming video (or video games), too much latency can cause lipsync issues. Different hardware configurations work best with different combinations of settings, so try different combinations large and small until you find settings that resolve your issue.īecause the WDM driver requires some buffer to function, it necessarily adds some latency to audio. It is important to note that a larger buffer will not necessarily work better. If you are experiencing clicks and pops, try different combinations of settings with these two buffers.
The input buffer, found at Options->Audio->Advanced->Live Playback Latency. The output buffer, found at Options->Audio->Device Settings, and. There are two buffers that are important to WDM performance: Because the WDM Driver is re-routing sound in real time, it is more sensitive to buffering settings than normal audio playback. Troubleshooting Common Issues Clicks, Pops, and StaticĬlicks, pops, and static are typically caused by buffer underruns. This re-routes the audio through Media Center's DSP stack to whatever output device you have selected as an audio output in Media Center. Now whenever system audio plays (from web browsers, apps, windows sounds, or video games) it will play to the JRiver Media Center driver. Note: If JRiver doesn't show up as a Windows Device in Control Panel > Sounds > Playback, try disabling it in MC General > Features. Because the WDM Driver is now the system default, setting Media Center to output to the system default just creates a closed loop. Make sure that, in Media Center, your setting under Options->Audio->Audio Device is not "Default Audio Device." You need to set your audio device to whatever your actual physical output device is. Select the one labelled JRiver Media Center 20 and click the Set Default button at the bottom of the menu as shown to the right. You should see all of the Audio devices on your system listed. Once the driver is installed, go to the windows control panel, and then to the Sound menu item. 
Then restart Media Center and the driver will install. To enable it go to Options->General->Features and check WDM Driver.
In versions of Media Center after 20.0.95 the WDM driver is disabled by default.
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