Audex is a graphical CD ripper for KDE. It does not support ripping to Opus out-of-box, but it does have a feature to add a new encoder. For this, we will just use the command-line encoder found in opus-tools, so install the packages audex and opus-tools. Now, when you run Audex, go to “Settings” > “Configure Audex...”, select the “Profiles” section, and then “Add...”. Name the new profile “Opus”. Under the “Encoder” tab, select “Custom” from the first drop down. Under “Command pattern:”, put in “
opusenc $i $o”, and under “Suffix:” put in “
opus”. You can look at some of the other options if you wish (I set mine to replace spaces with underscores), but that is all that is necessary to get it working. Save your new profile, select the profile from the main window, and begin ripping your favorite discs.
If you also want to capture metadata, you will need a newer version of opus-tools than what is in Wheezy. You can download the source, and build it yourself. You will need to have the wheezy-backports repository enabled to get some of the dependencies:
sudo aptitude -t wheezy-backports install libogg-dev libflac-dev libopus-dev
Once the dependencies are met, you should be able to configure and install opus-tools:
sudo make install
Now, you can change the “Command pattern:” in Audex to “
opusenc --title "$ttitle" --artist "$tartist" --album "$title" --date "date" --genre "$genre" $i $o”. This will capture metadata and embed it in your new Opus files.
Update: If you are looking to get better compression for speech recordings, such as lectures, sermons, speeches, etc, see this post.