[pulseaudio-discuss] Controlling where module-rtp-send sends multicast packets?

Matt Patterson matt at v8zman.com
Wed Feb 20 09:02:37 PST 2008

In an effort to use more of the pc that I already have running 24 7 I have opted to keep the amps right next to the pc and run speaker wiring throughout the house. Thus I have no need for remote nodes throughout the house. All remote contrl will be done via web tablets in the rooms.

I am also a bit of an audio nut and have not had a chance to listen carefully to the audio produced by this soution. If pulse fails I can always build/buy a hardware audio matrix switch and put it with the amps.

Im happy to share whatever I have or give thoughts, although I am new to pulse too.


-----Original Message-----
From: Paul Fox <pgf at foxharp.boston.ma.us>
Sent: Wednesday, February 20, 2008 8:35 AM
To: General PulseAudio Discussion <pulseaudio-discuss at mail.0pointer.de>
Subject: Re: [pulseaudio-discuss] Controlling where module-rtp-send sends	multicast packets?

matthew wrote:
 > I just thought I would check back on this. Last night I reworked my 

i only just joined the list yesterday, but i've read a bit about
your project in the archives.  it's similar enough to what i want
to do that i'm paying close attention to your progress.  so thanks
for the update.  :-)

 > control app and pulse configuration. Now I can use either rtp or the 
 > combine module to perform the audio matrix switching. There is 
 > definitely more load on the system, even when using the combine module 
 > with the default resampling. The syncing is definitely better than the 
 > rtp method, but only marginally. When I change to a better syncing alg I 
 > can't really test anything because my system screeches to a halt with so 
 > much cpu load! I am working on a slower laptop for dev so that is not 
 > surprising.
 > The important part is my router doesn't puke on all the multicast data, 
 > so I think I will stick with this for the moment.
 > In case anyone was curious, here's a snippet for my default config. I 
 > remap my 8 channel audio card to 4 stereo cards, naming each one a 

i'm confused as to what the audio card on your server is doing? 
i wouldn't have thought you'd need or want a local audio card at
all (unless you need local playback).  why aren't the sources for
your 4 zones, which feed your remote sinks, all strictly virtual?

 paul fox, pgf at foxharp.boston.ma.us (arlington, ma, where it's 27.1 degrees)
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