free tool
Make game music that loops with no click and no missing reverb. Add a WAV of your loop with its reverb tail, and the tool folds the tail back onto the start and gives you a WAV that loops perfectly. It runs in your browser, so your audio never leaves your computer.
Export the loop from your DAW plus a few extra seconds, so the reverb can ring out. Don't cut it at the loop end.
Drop a WAV file here
Use the same tempo and number of bars as your project. The tool works out where the loop ends, to the exact sample.
Playback starts 3 seconds before the loop point, so you hear the seam straight away. Drag the playhead to listen from anywhere, and compare with a plain cut.
seam check
how it works
Cutting an export at the loop end chops off the reverb and the last notes' releases. The start of the loop is also missing the tail it would have picked up from the pass before. You hear a click or a drop in the reverb every time the music wraps.
The tool takes everything that rings past the loop end and adds it onto the start. The result is the same as the middle of a long render that played the loop over and over, cut to exactly one loop.
The WAV is exactly one loop long and has loop points written in, so any player that loops the whole file plays it seamlessly. Nothing is uploaded: the file is read and made in your browser.
game engines
Keep loops as WAV or OGG Vorbis. MP3 adds padding at the start and end of the file, which makes a gap at the loop point however carefully it was made.
Import the WAV and set the import's Loop Mode to Detect From WAV (the default), which reads the loop points the tool writes. Forward also works, because the whole file is the loop.
Turn on Loop on the Audio Source. Avoid MP3 compression for loops, because MP3 adds silence at the edges.
Play the sound with looping on. The file is exactly one loop, so no loop points need setting.
Convert the WAV to OGG Vorbis and add the LOOPSTART and LOOPLENGTH tags shown under Export options.
faq
No. The file is read and processed in your browser, and the download is made there too.
WAV files at any sample rate, in 16, 24 or 32-bit PCM or 32-bit float, mono, stereo or more channels. The export keeps the sample rate and channels of your file.
As long as your reverb and delays take to fade out. Two to five seconds after the loop end covers most music. Extra silence does no harm.
The tail is added on top of the start of the loop, so the start can get louder. If it would clip, the tool lowers the whole loop just enough to fit. You can turn that off under Export options, for example if you export 32-bit float.
Export the intro and the loop as two files, play the intro once and then the loop. Make the loop with this tool from a render of the loop section with its tail.
The loop length usually doesn't match the music. Check the tempo and bars against your project, or enter the exact length in samples under More options.
Making retro game music? Read how to make PS1-style music, how PS1 reverb worked, or all guides.
simplespu
simpleSPU is a PS1-style synth and effect plugin for game soundtracks, with the console's own reverb. Try every preset free for 14 days. VST3 on every platform, AU on macOS.
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