Dolby digital is wanted to utilized in Ubuntu.
I wonder when it comes.
According to Wikipedia
License
Audio codec AC3 is covered by patents (though these are now expired[31]). Patents are used to ask to pay a commercial license to publish an application that decodes AC3. This leads some audio app developers to ban AC3 from their apps, although the open source VLC media player supports AC-3 audio without having paid for any kind of patent license.[32]
In Dolby's 2005 original and amended S-1 filings with the SEC, Dolby acknowledged that "Patents relating to our Dolby Digital technologies expire between 2008 and 2017."[33][34][35]
The last patent covering AC-3 expired March 20, 2017, so it is now generally free to use.[36]
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