I've not used Ubuntu for a while, but if I recall correctly you can check if proprietary drivers are available with (something like):
System Settings > Software & Updates > Additional Drivers
Recording from sound card at wrong speed. 48 vs 44.1 MHz
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This forum is for Audacity on GNU/Linux.
Please state:
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade (see https://www.audacityteam.org/download/).
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
This forum is for Audacity on GNU/Linux.Please state:
- which version of Linux you are using,
- the exact three-section version number of Audacity from Help menu > About Audacity,
- whether you installed your distribution's release, PPA version, or compiled Audacity from source code.
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade (see https://www.audacityteam.org/download/).
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
Re: Recording from sound card at wrong speed. 48 vs 44.1 MHz
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)