cutoff exceeds audio duration

[SillySwrdd]

Acknowledgement

• I have read Getting-Started and FAQ
• If dealing with version 0.1.549 or higher, you have installed the .NET 8 runtime

🐛 Describe the bug

forgive me im very new to openutau so if this is an obvious problem like,,, sorry!
here is the printed error:

Failed to render.
Oto error: cutoff exceeds audio duration
な
Failed to render
Oto error: cutoff exceeds audio duration
な

System.AggregateException: One or more errors occurred. (Failed to render
Oto error: cutoff exceeds audio duration
な) (Failed to render
Oto error: cutoff exceeds audio duration
す)
---> Exception of type 'OpenUtau.Core.Render.CutOffExceedDurationError' was thrown.
--- End of inner exception stack trace ---
---> (Inner Exception #1) Exception of type 'OpenUtau.Core.Render.CutOffExceedDurationError' was thrown.<---

0.1.565.0

Explains how to reproduce the bug

I was using this ust https://vocaloader.app/sequences/1320 and this voicebank https://vocadb.net/Ar/155353 on the teto tracks. (I had moved both tracks down an octave so they could be within the voicebank's range)

OS & Version

macOS Tahoe version 26.5.1

Logs

log20260818.txt

[BagelHero]

There is a configuration error with that voicebank. The marked audio end-point on the "na" sample is after the file duration itself ends, eg a non-existant point.

I recall there was an issue on stable where this error would be flagged if the end-point (AKA cutoff) was too close to the end of the file, but not actually after it, so you may want to update to beta. Toggle Beta in preferences, then go to Help > Check Update and update when prompted.

[SillySwrdd]

@BagelHero aaaa man :( is there a way to go into the files and manually fix it or do I have to settle for a different voicebank? (I did update to beta and it seemed to make the problem worse -_- the error message was much longer...)

[BagelHero]

Oh, yes! you can always reconfigure UTAU singers,, you have complete access to their configurations -- sorry it's such an inherent part of the creator side of things that I forgot it may need mentioning! Yes you can easily fix this.

Without going into the nitty gritty details, you can quickly amend this specific error by going to Tools > Singers..., making sure your singer is selected. Then search for な. Once the samples are narrowed down, make sure the correct sample is selected and then Take a look at the waveform towards the bottom of the window. Should look something like this:

The lines and bars overlaying your waveform view will likely look somewhat different. For now, look at the controls, particularly these:

Notice how 5 is cutoff, which was mentioned in your error. You want to hover your mouse where you would like the sample to cut (before any silence, and hopefully around as much as showed in the above screenshot), and press 5 on your keyboard. Then press Save Otos.

That said, the new error may be for an entirely difference reason, we would need to see a new screenshot or log!