What is Audio Looper?

Select any section of an audio file and loop it. Set precise start and end points, adjust playback speed with pitch lock, and export the looped segment as WAV or MP3.

The tool decodes any supported audio file (MP3, WAV, OGG, FLAC, AAC, M4A) into a buffer you can navigate visually via a waveform. Set loop bounds with millisecond precision, slow playback from 25% to 200% with pitch lock for music study, or run unlimited repeats. On export you can repeat by count or fill a target length, add a crossfade to smooth the seam, and download as a lossless WAV or a compact MP3.

How to use

1. Upload an audio file and use the waveform display to select the segment you want to loop.
2. Set the loop start and end points precisely. Adjust playback speed without changing pitch if needed.
3. Play the loop continuously. Download the looped segment as a standalone audio file.

When to use

• Learning a guitar solo by isolating one passage and slowing it to half speed without dropping a key.
• Building drum loops from a longer track by trimming to an exact bar boundary.
• Memorising a foreign-language phrase by repeating a 3-second clip on infinite loop while you shadow it.

Result

A guitar student uploads a song, selects the 16-bar solo section from 2:15 to 2:45, slows playback to 75% speed, and loops it repeatedly while practicing along.

FAQ

Will slowing the audio down change the pitch?

Not if you keep pitch lock enabled — the algorithm stretches the timing while keeping the original pitch. Without pitch lock, slowing to 50% drops the pitch by an octave, which is fine for sound design but bad for transcribing music.

How precise can the loop start and end points be?

Loop bounds are stored in seconds with two-decimal millisecond precision (e.g. 02:15.47). The waveform display lets you scrub by pixel, but you can also type the exact time if you've measured a bar from a DAW first.

What's the difference between infinite loop and a fixed loop count?

Infinite loop plays until you press stop and is meant for live practice. For the export, pick how many repeats you want, or switch Loop By to Duration and type a target length — the tool repeats the segment until it fills that run time, ideal for a backing track or a long ambient file.

Can I loop a section that crosses a silence in the original recording?

Yes. The tool doesn't try to detect bars or beats — it just plays what you select. If your loop bounds include a 2-second silence, the playback will include that silence on every repeat.

Why does the loop sometimes click at the seam?

Clicks happen when the start and end samples sit at different amplitudes. This tool snaps each loop boundary to the nearest zero-crossing automatically whenever you drag or click to set it, which removes most seam clicks on its own. If one still pops, turn up the Crossfade slider in Export Settings — it blends the end of each repeat into the start of the next so the join is inaudible.

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