: If you use external decoders like LAV Audio Configuration , ensure "Auto Pitch Correction" is enabled within those specific filter settings.
: In the Internal Audio Renderer settings page, increase the buffer size to give your CPU more time to process the time-stretched audio packets. mpc hc speed up without pitch
: If you have "Bitstreaming" enabled for home theater systems (like Dolby Digital or DTS passthrough), pitch correction will not work because the audio is sent raw to an external device. Use the Internal Audio Renderer to ensure the player handles the processing. : If you use external decoders like LAV