How do I speed up or slow down audio?

Load your file into the GoChronos Speed Changer, choose a speed from 0.5× to 4×, preview it live, then export. Great for lecture review and language practice.

Does changing the speed change the pitch?

Only if you want it to. With Preserve pitch on (the default), voices stay natural using SoundTouch time-stretching. Turn it off for classic tape-style varispeed where pitch shifts with speed.

Is the Speed Changer free?

Yes. Free on GoChronos, processed on your device, works offline.

Audio Speed Changer — 0.5× to 4×, Pitch-Safe

Speed audio up or slow it down from 0.5× to 4× without changing pitch — ideal for lectures, podcasts and language practice. Fully on-device.