Guaranteed method to crash Audacity 2.1.2 on Windows

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Trebor
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Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows Vista

Guaranteed method to crash Audacity 2.1.2 on Windows

Post by Trebor » Thu Dec 15, 2016 12:24 am

Audacity 2.1.2 Windows Vista.

#1 Open a stereo track in Audacity.
#2 Select any VST effect.
#3 Whilst VST preview is playing, split the stereo track to mono.
#4 Guaranteed crash.

This is also occurs on native Wah-Wah effect.
[ The other native effects don't permit track-splitting once the effect has been selected from the menu].

steve
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Re: Guaranteed method to crash Audacity 2.1.2 on Windows

Post by steve » Thu Dec 15, 2016 11:56 am

Thanks Trebor. Confirmed on Linux in Audacity 2.1.3 alpha with real-time preview effects.
I'll log this bug now.
Update: Now logged.
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steve
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Re: Guaranteed method to crash Audacity 2.1.2 on Windows

Post by steve » Thu Dec 15, 2016 12:18 pm

I'm curious: Why did you try to split the track during preview? Was it "destruction testing" or was it part of a practical use case?
(I'm thinking that the easiest fix might be to disallow split/join stereo tracks while transport is active).
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Re: Guaranteed method to crash Audacity 2.1.2 on Windows

Post by steve » Thu Dec 15, 2016 12:24 pm

Trebor wrote:Audacity 2.1.2 Windows Vista.
Are you able to test with Audacity 2.0.6 and 2.1.0?
If you can, please do and let us know.
Thanks,
Steve
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Trebor
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Re: Guaranteed method to crash Audacity 2.1.2 on Windows

Post by Trebor » Thu Dec 15, 2016 1:36 pm

steve wrote:Why did you try to split the track during preview ?
Haste : rather than stop the VST preview, then split the track, then start preview again.
steve wrote:I'm thinking that the easiest fix might be to disallow split/join stereo tracks while transport is active.
Splitting is disallowed on the native effects, except Wah-Wah & Phaser.
Extending that restriction to all effects, native & plugin, seems the way to go, if the alternative is a crash.

steve
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Re: Guaranteed method to crash Audacity 2.1.2 on Windows

Post by steve » Tue Dec 20, 2016 6:11 pm

Trebor wrote:Splitting is disallowed on the native effects, except Wah-Wah & Phaser.
Extending that restriction to all effects, native & plugin, seems the way to go, if the alternative is a crash.
Update: That's now been done in the development code.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

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