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Check if a BIOS update is available for your motherboard.įix stuttering or bad video playback performance with NVIDIA drivers.

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Try removing it and just use the built-in scanner from Windows 10.

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Antivirus software can sometimes also cause DPC latency, for example when they monitor network activity.If you are running virtual machines using Hyper-V, then closing the VMs might solve audio stuttering.

It does not matter much for security since most modern web browsers already provide protection against these processor flaws. These have a negative impact on performance and increase latency.

If you have an Intel CPU, the use InSpectre tool to disable the Meltdown/Spectre protections.

If you have overclocked your CPU, then reset to stock speed and voltage settings, and test if that makes any difference.

Such drivers should be replaced with a newer (or older) version.

Download the last version for iphoneK Lite Codec Tweak Tool driver#

Use Latency Monitor to check if you have any driver installed that cause high DPC latency.

You can also use the generic 'High Definition Audio Driver' from Microsoft. Many computers have Realtek audio chip: latest Realtek driver (use generic one). If this works, then increasing the value of 'Minimum processor state' in the other power plans may also solve it.

On laptops: Windows Control Panel > Power Options > select 'High performance' power plan.

You should keep these options enabled if you want to bitstream audio to a receiver.

Windows Control Panel > Sound > Speakers > Properties > Advanced > disable the two 'Exclusive mode' options.

Windows Control Panel > Sound > Speakers > Properties > Enhancements > Disable all sound effects.

Disable fast startup in Windows 10: Windows Control Panel > Power Options > 'Choose what the power buttons do' > uncheck 'Turn on fast startup'.

If CPU usage is close to 100% then your computer might not be powerful enough to play high resolution videos. Press Ctrl+Shift+Esc to open Windows Task Manager.

First check CPU usage during playback.

Solutions for stuttering, crackling, drop outs, and lip sync issues: MPC-HC options > Internal Filters > Audio Switcher > Enable 'Normalize' MPC Video Renderer also supports Dolby Vision (DoVi) (profiles 5/8.1/8.4 only).Ĭodec Tweak Tool > Fixes > Reset Windows Audio Mixer volumeĬodec Tweak Tool > Audio Output > 'Windows Sound Settings' > Select correct speaker configuration Playback of UltraHD HDR videos requires modern hardware, with a graphics card (GPU) that supports hardware accelered decoding of 10-bit HEVC video. madVR has more advanced settings, but can be difficult to configure properly. MPC Video Renderer is easier to use and works better with lower-end GPUs. MPC-HC options > Playback > Output > Video Renderer You can choose the renderer that MPC-HC uses during installation of the codec pack, or here after install:

The K-Lite Codec Pack contains two renderers that are compatible with HDR: MPC Video Renderer and madVR. You also need to use a video renderer that supports HDR. We recommend using MPC-HC player that is included with from K-Lite. These are videos with a wider color range than normal.įirst of all you need to use a player that supports HDR video. MPC-HC can play everything, and supports subtitles.

Use Media Player Classic (MPC-HC) player from K-Lite instead of WMP.

Please read the help file in the Codec Tweak Tool. Games and web browsers often need Media Foundation, so we strongly advice against using this solution. Warning: This tweak will break playback of such files in applications that require Media Foundation. This will also force WMP to use DirectShow codecs.

Codec Tweak Tool > Media Foundation > disable for.This solution should allow you to play everything, including subtitles. The codecs from K-Lite work better than the ones from Windows. This forces WMP to use the DirectShow codecs from K-Lite instead of the Media Foundation codecs from Windows. Rename your file from so it has extension.This will allow you to play some additional video formats, such as HEVC and VP9.

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On Windows 10/11 you can install some additional Media Foundation codecs for WMP.

For example broken audio, video, or missing subtitles. Thanks! Tips for Windows Media Playerįix playback issues with MP4/MOV/MKV/M2TS files. The latest version of the K-Lite Codec Pack is:ĭo you like our software and want to make a small donation? Visit our donation page.

Download the last version for iphoneK-Lite Codec Tweak Tool