Bug for previews 2.2.0

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Bug for previews 2.2.0

Permanent link to this post Posted by demonicsweaters » Mon Nov 13, 2017 9:02 pm

I'm using audacity version 2.2.0 installed via an update through the KXstudio repos on Ubunutu 16.04 LTS. I'm getting an error when trying to preview audacity's fx that reads "Internal error at WaveTrack.cpp line 1423. Please inform the Audacity team at https://forum.audacityteam.org" If I "start playback" on realtime fx, it seems to work fine, but I can't preview Audacity's built-in fx.
here's a screenshot:

audacity error.png
audacity error.png (141.8 KiB) Viewed 460 times
Last edited by steve on Mon Nov 13, 2017 9:11 pm, edited 1 time in total.
Reason: Place image inline
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by steve » Mon Nov 13, 2017 9:11 pm

Does the problem only occur with the Equalization effect?
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by demonicsweaters » Mon Nov 13, 2017 9:36 pm

steve wrote:Does the problem only occur with the Equalization effect?

No, it happens with any effect that uses the "preview" feature. The ones that use "start playback' seem to work fine.
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by steve » Mon Nov 13, 2017 10:32 pm

Are you sure that it is Audacity 2.2.0 and not an alpha version?
Line 1423 of WaveTrack.cpp is just the single close bracket:
Code: Select all
      }
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by demonicsweaters » Mon Nov 13, 2017 10:59 pm

steve wrote:Are you sure that it is Audacity 2.2.0 and not an alpha version?
Line 1423 of WaveTrack.cpp is just the single close bracket:
Code: Select all
      }

Well it installed during system updates, so I don't think it's the alpha version. Looking at about Audacity it just says 2.2.0. Unless there's something screwy with the KXStudio version that got pushed out.
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by steve » Tue Nov 14, 2017 2:02 am

What do you get if you enter this in a terminal:
Code: Select all
dpkg -s audacity
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by demonicsweaters » Tue Nov 14, 2017 2:07 am

steve wrote:What do you get if you enter this in a terminal:
Code: Select all
dpkg -s audacity

Version: 2.2.0-1build1~ubuntu16.04
Depends: audacity-data (= 2.2.0-1build1~ubuntu16.04), libasound2 (>= 1.0.16), libavcodec-ffmpeg56 (>= 7:2.4) | libavcodec-ffmpeg-extra56 (>= 7:2.4), libavformat-ffmpeg56 (>= 7:2.4), libavutil-ffmpeg54 (>= 7:2.4), libc6 (>= 2.15), libexpat1 (>= 2.0.1), libflac++6v5 (>= 1.3.1), libflac8 (>= 1.3.0), libgcc1 (>= 1:3.0), libgdk-pixbuf2.0-0 (>= 2.22.0), libglib2.0-0 (>= 2.12.0), libgtk2.0-0 (>= 2.24.0), libid3tag0 (>= 0.15.1b), libjack-jackd2-0 (>= 1.9.5~dfsg-14) | libjack-0.116, liblilv-0-0 (>= 0.16.0~dfsg0), libmad0 (>= 0.15.1b-3), libmp3lame0, libogg0 (>= 1.0rc3), libportsmf0v5, libsndfile1 (>= 1.0.20), libsoundtouch1 (>= 1.9.2), libsoxr0 (>= 0.1.0), libstdc++6 (>= 5.2), libsuil-0-0 (>= 0.8.0~dfsg0), libtwolame0, libvamp-hostsdk3v5, libvorbis0a (>= 1.1.2), libvorbisenc2 (>= 1.1.2), libvorbisfile3 (>= 1.1.2), libwxbase3.0-0v5 (>= 3.0.2+dfsg), libwxgtk3.0-0v5 (>= 3.0.2+dfsg)
Suggests: ladspa-plugin
Description: fast, cross-platform audio editor
Audacity is a multi-track audio editor for Linux/Unix, MacOS and
Windows. It is designed for easy recording, playing and editing of
digital audio. Audacity features digital effects and spectrum
analysis tools. Editing is very fast and provides unlimited
undo/redo.
.
Supported file formats include Ogg Vorbis, MP2, MP3, WAV, AIFF, and AU.
Homepage: http://audacityteam.org/
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by demonicsweaters » Tue Nov 14, 2017 3:38 am

Okay, I have some new info. If I create a new project file I don't have the problem. The file that is giving me the issue was something I recorded in the previous version. If I select "save as" and save it under a different name it still has the issue. However, if I export the tracks then re-import them into a totally new project, the problem goes away.
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by steve » Tue Nov 14, 2017 9:22 am

demonicsweaters wrote:Version: 2.2.0-1build1~ubuntu16.04

Unfortunately it seems that whoever built / packaged that didn't put in any information regarding who they are. Usually there is at least the name of the package maintainer and / or the name of the repository. However, it does tell us that it is probably not from an official Ubuntu repository. It's definitely not from the Ubuntu 16.04 repository because that is still with Audacity 2.1.2 (https://packages.ubuntu.com/xenial/audacity).

My guess is that at some time you added a PPA (possibly: https://launchpad.net/~ubuntuhandbook1/ ... u/audacity) so that you could get a more recent version, and it has come from there.

demonicsweaters wrote:Okay, I have some new info. If I create a new project file I don't have the problem. The file that is giving me the issue was something I recorded in the previous version. If I select "save as" and save it under a different name it still has the issue. However, if I export the tracks then re-import them into a totally new project, the problem goes away.

Excellent, that could be very helpful. Would it be possible for you to make a ZIP archive of that "bad" project (the AUP file and _data folder and dependencies if any), and upload it somewhere such as dropbox or sendspace, then post a link (if you don't want it to be public, then perhaps send me a PM with the download link).
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Re: Bug for previews 2.2.0

Permanent link to this post Posted by Zom-B » Tue Nov 14, 2017 10:23 am

I think it's Panda Jim's version. my dpkg gives the same version string.
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