No real-time pitch-preserving algorithm is flawless. Even professional software like or Audacity can introduce smearing or phasing artifacts. However, MPC-HC's implementation—particularly with the external MPC Audio Renderer—is among the best available for free, lightweight video playback.
The default speed steps are often too large (e.g., doubling speed from 1x to 2x). To make smaller adjustments: Go back to Speed step Change it from "Auto" to a smaller value like to allow for gradual speed increases (e.g., 1.1x, 1.2x). 3. Playback Controls Use these keyboard shortcuts to control the playback rate: Increase Speed Decrease Speed Down Arrow Reset to Normal (1x) Troubleshooting
: By default, MPC-HC may jump in large increments (like 2x). To change this, go to Options > Playback and change the Speed step from "Auto" to a specific percentage, such as 5% or 10% (0.05 or 0.10).
For quick reference, here is how to control efficiently: