Time stretching requires real-time processor calculations. If you are speeding up 4K or high-bitrate videos on an older computer, the audio might crackle or drop out. If this happens, lower your playback speed slightly (e.g., from 2.0x down to 1.5x) or close background applications to free up CPU resources.
: Press Ctrl + Up Arrow (increases speed by 0.1x increments).
: If you are using a very old version of MPC-HC (v1.7.13 or older), this feature may not work as well. It is recommended to use the modern, maintained fork available on for specific playback speeds? Media Player Classic - Home Cinema 2.5.5 - Neowin 31 Oct 2025 —
Method 1: Enable Built-in Pitch Correction (Internal Audio Renderer) mpc hc speed up without pitch
If you need to produce a file that is sped up permanently, you would use an editor like Audacity (using the "Change Tempo" effect) or Adobe Audition. Troubleshooting
If you experience issues with copy-back , you can experiment with the DXVA2 (native) or NVIDIA CUVID (for NVIDIA GPUs) options, as they may offer slightly better performance in some scenarios.
If the audio stutters at higher speeds, the renderer might be struggling with your CPU capacity. Ensure that "DirectShow Video" is not overloading the system. Time stretching requires real-time processor calculations
By default, speeding up can jump from 1x to 2x, which is often too fast for comfortable listening. You can customize this for smoother transitions: Go to > Playback . Locate Speed step (usually set to "Auto").
When you speed up a video, you are essentially shortening the duration of each second of footage.
Most free players use low-quality "linear" interpolation. MPC-HC, however, offers professional-grade algorithms. : Press Ctrl + Up Arrow (increases speed by 0
The easiest and most effective way to maintain pitch during fast playback is to use MPC-HC’s internal audio renderer. This feature automatically processes the audio frequency to keep voices sounding normal. Step 1: Open the Options Menu
The good news is that MPC-HC has a dedicated setting to prevent this. The solution involves switching to the correct audio renderer . An audio renderer is a component that processes the audio before sending it to your speakers. The default renderer in many Windows players does not support "time-stretching" or "pitch correction," but MPC-HC comes with its own high-quality internal renderers that do.
To speed up playback in without changing the pitch (avoiding the "chipmunk" effect), you must enable the player's internal audio time stretching feature . By default, many older or standard configurations of MPC-HC simply speed up the audio samples, which naturally raises the pitch.