Score:1

Why doesn't the audo utility "jack" show codecs which are installed?

mx flag

When starting up jack with the command hdajackretask the GUI reports that there aren't any codecs for recording audio. Off the top of my head, this seems nonsensical as I'm using Text Now and other VoIP apps without problem:

jack

nicholas@mordor:~$ 
nicholas@mordor:~$ sudo apt install ubuntu-restricted-extras
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
ubuntu-restricted-extras is already the newest version (67).
0 upgraded, 0 newly installed, 0 to remove and 154 not upgraded.
nicholas@mordor:~$ 
nicholas@mordor:~$ uname -a
Linux mordor 5.11.0-34-generic #36-Ubuntu SMP Thu Aug 26 19:22:09 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
nicholas@mordor:~$ 

Admittedly, the output of a command to list codecs wasn't immediately and easily human readable -- at least to this human.


The GUI documentation shows:

Start the application "hdajackretask" from the command line. Select a codec in the top bar; some people have only one - if you have more than one, one is the "main" one, and the rest are probably HDMI codecs.

which in no way addresses the fact that no codecs are found by jack itself.

N0rbert avatar
zw flag
Have you tried to click on "Read documentation" button? It may be helpful.
Nicholas Saunders avatar
mx flag
I updated the question @N0rbert to include what the documentation shows on this topic. Which section of the documentation were you referencing, please?
N0rbert avatar
zw flag
This, on [image](https://i.stack.imgur.com/WOaPZ.png).
Nicholas Saunders avatar
mx flag
Yes, @N0rbert -- that's the documentation quoted in the text of the question.
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