Song Tempo Changer

A song tempo changer is a tool that adjusts the speed of music playback without affecting pitch. Our tool uses advanced phase vocoder algorithms to stretch or compress audio time while preserving the original key, making songs faster or slower for practice, karaoke, or creative purposes.

Our advanced audio processing engine minimizes quality loss by preserving pitch and using high-quality time-stretching algorithms. While some artifacts may appear at extreme tempo changes (below 0.5x or above 2.0x), the audio remains clear and usable for most applications including professional karaoke production.

Our tempo changer supports the most popular audio formats including MP3, WAV, and AAC files up to 50MB in size. The output is provided as a high-quality WAV file that can be used in any audio or video editing software.

Absolutely! Our tool is perfect for creating karaoke tracks at practice speeds or custom tempos. You can directly integrate your tempo-adjusted audio with MyKaraoke Video to create professional lyric videos synchronized to your custom tempo.

You can adjust tempo from 0.5x (half speed) to 2.0x (double speed). We recommend staying between 0.75x and 1.5x for best audio quality. The tool includes convenient presets for common adjustments like practice speed and standard variations.

No account required! Our song tempo changer is completely free and works instantly in your browser. Simply upload your audio file, adjust the tempo, and download your results immediately without any registration or subscription.