Slow down difficult speech and music practice, or speed up lectures, podcasts, and voice notes. Change playback speed from 0.5× to 2× while keeping the audio usable.
Free browser-based processing with secure uploads, automatic file cleanup, and no software installation.
Click or drag files to upload
Maximum 1 file, 50MB per file. Supports audio, video, and Kugou encrypted formats.
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Upload your audio, choose a speed between 0.5× and 2×, and click Change Audio Speed. Values below 1× slow the recording down, while values above 1× make it faster. Download the new MP3 after processing finishes.
Yes. Choose 0.5× or 0.75× to make fast speech easier to follow while transcribing interviews, lectures, meetings, or voice notes.
Yes. Settings such as 1.25×, 1.5×, and 2× shorten the listening time and are useful for speech-heavy recordings.
Yes. Faster audio becomes shorter and slower audio becomes longer. A 2× setting produces roughly half the original duration.
The tempo filter is designed to change playback speed while keeping voices and music close to their original pitch.
