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<p>Sorry for not reading every mail of this thread... but I want to
share with you my experience with PulseAudio - Zoom. I tried a lot
of things to make mic-music work. I have onboard soundcard and a
Logitech USB headphones/mic. And, finally, I end using other
method, completly different.</p>
<p>- For the first time, I tried to use mic and music from OBS and
create "something" to make Zoom take the audio: Pulseaudio remap
module. I output all the audio from OBS to my speakers and remap
it to a source module.<br>
</p>
<p>- Later, I discovered that audio output (monitor) from OBS was
not stable... so, I create a system using pulseaudio sink modules,
SoX and Play commands from console. Also, with SoX, I applied some
filters in realtime (pitch, eq, highpass, echo and reverb).</p>
<p>- Then, I tried to hear only the music and Zoom in headphones and
send my voice and the music to speakers (and turn them off
"hardwarely"). For this, I created pulseaudio loopback modules and
combine modules. It appear to work everything Ok... till I saw my
CPU: on fire. I don't have a modern computer. This Pulseaudio
consumtion and OBS consumption.... and Zoom consumption, the video
was awfull. With luck: 5fps or less.</p>
<p>- I forgot to mention that the first try was with Jack. But, as I
said, my computer was not good for OBS and Jack. So, I desisted.<br>
</p>
<p>- Finally, by trying to optimize OBS resolution, modules, SoX,
Play and getting lot of headache... I tried Jack again. With
stting OBS resolution at 704x396 instead of HD (less than half CPU
process), I could use Jack with 128 frames: 8ms latency. So, I
created a patch in PureData and connect what I want to what I
want. I hear what I want and send what I want. Filters, fadeins,
fadeouts, music, samples... everything I want.<br>
</p>
<p>Sorry that this is Pulseaudio maillist, but my advice is: use
Jack.</p>
<p>If you still need pacmd/pactl commands to make it work as my
first tries... ask for them. I can share them with you.</p>
<p>Good luck.<br>
</p>
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<div class="moz-cite-prefix">El 18/5/20 a las 16:59, Samir Parikh
escribió:<br>
</div>
<blockquote type="cite"
cite="mid:847a40e5-4434-4773-6eb3-4a1992f140bf@gmail.com">Sean
Greenslade wrote on 5/17/20 10:04 PM:
<br>
<blockquote type="cite">On Sun, May 17, 2020 at 07:01:25AM -0400,
Joe wrote:
<br>
<blockquote type="cite">Someone should write a small book on
this. I bet it would sell.
<br>
</blockquote>
<br>
Hah, you know, typing up this response has made me consider
doing a
<br>
proper write-up for my much more elaborate/crazy/overcomplicated
setup
<br>
involving network audio, pulse, JACK, carla, and calf LV2
plugins to do
<br>
automatic livestream background music replacement with
gate-triggered
<br>
music ducking.
<br>
<br>
<a class="moz-txt-link-freetext" href="https://dumbpic.link/manu/2020-05-17_unmufflegate_carla_flow.png">https://dumbpic.link/manu/2020-05-17_unmufflegate_carla_flow.png</a>
<br>
<br>
--Sean
<br>
</blockquote>
<br>
If it can clearly explain the basics of Linux audio networking,
the concepts of Pulse, JACK and how they differ, and how to do
things like in my original question, I'll be the first in line to
put down 10-20 USD for a copy!
<br>
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<br>
</blockquote>
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