audio disappears when applying effects

[grogorio]

totally noob question: I recorded a short 7s voice track with microphone and saved it as a project file. It plays fine and I can export as a wav etc.

Now I want to apply some effects but just can't figure it out. I highlight my audio, and select Effects -> [name of effect] but no matter what effect I try, the audio just disappears and I am left with an empty track.

I've got to be missing something really basic?

[Gale Andrews]

Are you really on Linux - what distribution - Ubuntu?

What is the full text for the Audacity version at Help > About Audacity?

Are you seeing a warning that Audacity cannot read external audio files? That is usually the problem. See:
http://wiki.audacityteam.org/wiki/File_ ... #dependent

Or you are out of disk space. Try File > Close.

If the above does not help, what is the source of the audio in the project - WAV files, or a recording? Please also click Help > Show Log... then Log > Save... and attach the log file (underneath where you post).


Gale

[grogorio]

Hi Gale, thanks for your response:

Are you really on Linux - what distribution - Ubuntu?

Linux Mint 11

What is the full text for the Audacity version at Help > About Audacity?

Audacity ® 1.3.13-beta (Unicode)

Are you seeing a warning that Audacity cannot read external audio files? That is usually the problem. See:

There are no warnings

Or you are out of disk space. Try File > Close.

Plenty of disk space >20GB

If the above does not help, what is the source of the audio in the project - WAV files, or a recording?

It's a short audio recording of my own voice of around 7 seconds saved as a .aup file

Please also click Help > Show Log... t

Here is part of the log file, I didn't include the whole thing because the last few lines are repeated (more or less) about 100 times or more...

09:38:18 PHT: Retrieving FFmpeg library version numbers:
09:38:18 PHT: AVCodec version 0x344802 - 52.72.2 (built against 0x344802 - 52.72.2)
09:38:18 PHT: AVFormat version 0x344002 - 52.64.2 (built against 0x344002 - 52.64.2)
09:38:18 PHT: AVUtil version 0x320f01 - 50.15.1 (built against 0x320f01 - 50.15.1)
09:46:04 PHT: Error: can't open file '/home/greg/Music/last call_data/e00/d00/e0000fcb.au' (error 13: Permission denied)
09:46:05 PHT: Error: can't open file '/home/greg/Music/last call_data/e00/d00/e0000062.au' (error 13: Permission denied)
09:46:05 PHT: Error: can't open file '/home/greg/Music/last call_data/e00/d00/e0000fcb.au' (error 2: No such file or directory)

[bgravato]

It's a short audio recording of my own voice of around 7 seconds saved as a .aup file

An audacity project is not a single file. An audacity project is made of two parts: an .aup file and a _data folder which contains lots of .au files.
You must not delete, rename or move any of those files/folders. They must be kept together and must not be renamed.

09:46:04 PHT: Error: can't open file '/home/greg/Music/last call_data/e00/d00/e0000fcb.au' (error 13: Permission denied)
09:46:05 PHT: Error: can't open file '/home/greg/Music/last call_data/e00/d00/e0000062.au' (error 13: Permission denied)
09:46:05 PHT: Error: can't open file '/home/greg/Music/last call_data/e00/d00/e0000fcb.au' (error 2: No such file or directory)

So... did you delete, move or rename the _data folder with the same name as the .aup file?

[Gale Andrews]

With what account are logged in - "greg" or root? Right-click over "/home/greg/Music". Is there a "Properties" choice or similar that takes you to a page where you can check or change permissions?


Gale

[bgravato]

If you feel comfortable using the command line you can type this command to change the owner:

Code: Select all

sudo chown -R greg /home/greg/Music/last call*

The "no such file" error message worries me though...