Comment 38 for bug 602934

Created an attachment (id=125)
Just a combination of 0.6.1 support and the import crash fix

This is a combined patch that include the 0.6.1 support and the fix for the
import crash from bug #317.

I have been unable to pin down why M4A imports are silenced. Actually, I no
longer see this, so if y'all can attach a file to this bug that consisently
imports as silence that'd be great. Heck, if you have a mono file that imports
as stereo, please attach that as well.

One thing that I did discover is that on 2010-05-14, the native aac encoder was
updated and this caused a tremendous degradation in export quality. I do not
believe this to be an Audacity issue since the ffmpeg command produces the same
results.

Another thing is that exporting a 10 minute chirp on my system consistently
takes 22 seconds prior to the ffmpeg changes on 2010-04-02. After that date,
exporting the same chirp consistently takes 35 seconds. Again, I do not
believe this to be an Audacity problem since the ffmpeg command produces nearly
the same time difference as Audacity.