https://bugs.kde.org/show_bug.cgi?id=415505

Henrique Sant'Anna <hsanta...@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |hsanta...@gmail.com

--- Comment #1 from Henrique Sant'Anna <hsanta...@gmail.com> ---
Tested here with 20.08.1 linux distro package and with
kdenlive-20.11.70-8a08988-x86_64.appimage.

jack2 version 1.9.14.

Tested with SDL: Pulseaudio (on my system pulseaudio redirects to jack). Works
good.

and with RtAudio:

* 20.08.1 linux distro package:
    Will work good with direct output to Jack (autodetects and autoconnects to
jack's system output) and sound plays correctly. The distinct behavior is that
when I select any frame on timeline, it produces continuous noise representing
the audio frame. With SDL+pulseaudio it will produce only some ms of noise to
do that representation.

* kdenlive-20.11.70-8a08988-x86_64.appimage:
    RtAudio will detect and outputs to ALSA ( and on my system it will be than
be redirected do pulseaudio, which sends to jack). I could not select the
RtAudio output (it's grayed out).

I could not reproduce the described behavior.

Also, i didn't understood what you meant when said:
> Then, in pavucontrol, I assigned kdenlive to the "Jack sink (PulseAudio JACK
> sink)" audio device instead of the direct device, and kdenlive un-hung.

Because if kdenlive outputs directly to jack, than Pulseaudio wont see
kdenlive. But if kdenlive outputs to Pulseaudio, than I think the only way to
the sound to go to jack is through PulseAudio JACK sink.

What do you mean when you say "direct device" ?

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