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[Linphone-users]Warning: Soundblaster PCI 128 - different models

From: Ekkard Gerlach
Subject: [Linphone-users]Warning: Soundblaster PCI 128 - different models
Date: Tue, 19 Nov 2002 12:23:32 +0000
User-agent: Mutt/1.3.99i


pay attention: using kernel modules for 
Soundblaster PCI 128  there are big diffenences 
in jitter delay on LAN network (only 2 PC's, 
not other traffic):

 1. Soundblaster PCI 128   Model 4700 : minimum 2 seconds 
    Chip: es1370
 2. Soundblaster PCI 128   Model 4810 : about .5 seconds 
    Chip: es1371
I set down number of buffered milliseconds to bottom
 (60 millisecond). I own model 4810 two times and 4700 
for one time. I tested the cards with each other.

Maybe that kernel modules for es1370 are implemented badly. 
Alsa-modules have problems with my 2.4.19 kernel (origin
is Suse 7.2, 2.4.4) . Maybe 
that alsa works when I try once again. (But not now)

Next test ist that I compile sound support and es1371 into the 
kernel, not as module like now. Hope that jitter delay 
will be less than .5 sec. 

Using linphone 0.9.1 (rpm-version , taken yesterday from
linphone server)

any comments? 


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