| From "Sanders, Arthur C." <Art.Sanders@...>
| Fri, 5 May 2006 18:58:12 -0400
| Problem I create an aup file and associated subfolder from a wav file,
| copy them to CD or thumb drive, copy to another PC, but get no audio
| on playback. I can see the waveform and all that I saved in the aup file,
| but hear no sound. Any suggestions?
The problem is that when you originally imported your WAV into Audacity,
you used Audacity's default behaviour of reading this uncompressed data
directly from the disc, but you have now moved the WAV the project depends
on to another location, deleted it, or the removable drive it resides on is
By default Audacity imports uncompressed data such as WAV by reading it
directly, in order to speed up the import and to avoid rapidly consuming the
user's disc space which would occur if a copy of the WAV was made. This
practice is normal with media editors, however it does require that the
original data file still be present, whereas in your case unfortunately it isn't.
Saving the project therefore does not save uncompressed imported audio data
where that data has been read direct from the disc ; it only saves a reference
To avoid this problem in future when importing uncompressed data such as
WAV or AIFF, either retain the original audio file or set Audacity to make a
copy of the file, which will then be store in the Project's _data folder. You do
this in Preferences > File Formats > "when importing uncompressed audio...."
> check the radio button "make a copy of the file before editing".
Note this issue does not arise if importing compressed data such as an MP3
file, as Audacity automatically makes a copy upon import.
You don't say that you have moved the original WAV you imported when
you copied the project file and folder to other locations, however if this
is the problem you can simply restore the WAV to its original location
as specified in the .aup file, or change the path to the WAV in the .aup
file to reflect its current location. To do this, you can open the .aup file in
a text editor and search for the string "aliasfile" (without the quotes).
When you find this string you will find just to right, the absolute path
of the audio file. You can replace this path inside the single quotes with
the current location by using the text editor's find and replace function
to replace all instances of the old path with the current path.