[LAU] online calls with decent auido for music lessons

David Kastrup dak at gnu.org
Mon Mar 15 19:47:13 CET 2021

Brandon Hale <bthaleproductions at gmail.com> writes:

> I have setup Jamulus servers at my institution, and I think it is one
> of the best for users of all operating systems. It is simple to setup
> and get running, and has features like automatic recording of sessions
> (it creates a DAW project file with stems!) It also gives users
> control of personal mixes, which is a unique feature. It has decently
> low latency and doesn't do any audio ducking like zoom does. Just make
> sure users use headphones so they don't feedback. I have even gotten
> good results on wifi (believe it or not)! Not to mention, it is easy
> to compile on servers that don't have the recent version in their
> repo.
> It doesn't have video, but can be combined with something like
> zoom. That is complicated, and doesn't work well with Windows, since
> Jamulus needs Asio, and that takes over all audio on the system. I
> don't know how zoom reacts to that, but that may take some additional
> testing with Windows users.

It seems to be fairly common among Jamulus users to run a muted instance
of Jitsi (<https://meet.jit.si/whatever_you_want_to_call_your_room>) in
parallel.  If your Internet connection is even slightly sketchy, that
may not be advisable regarding audio quality.

I held a (German) talk about Jamulus at the Chemnitzer Linuxtage
yesterday.  Slides are linked from the talk site at
<https://chemnitzer.linux-tage.de/2021/de/programm/beitrag/120>.  The
video is not available yet from the conference site, but at least the
prerecorded bulk of the session (before the last slide and without Q&A)
can be seen at <https://youtu.be/Vn1f70IH-Es>.

And with echo compensation removing any feedback I did not realise that
the live part of the talk was too loud and clipped, and my session host
had such lousy audio equipment that he did not notice (or mind) either.
So I am not sure how bearable that part would be to listen to anyway.

Probably worth checking out the slides and if you think you can make
sense of those in spite of the language (or cannot make sense of those
in spite of the language), viewing the video might help.

David Kastrup

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