Delta66 xruns and asound.conf buffer size

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Hi list,

My colleague Curtis and I are still unable to capture audio from a Delta66
for streaming through icecast without unacceptable dropouts of samples,
resulting in choppy sound and speech difficult to follow.  Clemens Lavisch
called our attention to a too small buffer size in our asound.conf file,
where the capture devices are defined, but every effort to increase it
reveals that it is capped at 5461 bytes.  We can lower it, but cannot
increase it. There are examples on the net everywhere of higher values,
but our efforts cannot increase it beyond 5461.  If anyone can suggest
where we might look for a solution to this problem, We would be grateful.

Curiously, perhaps it is a coincidence, the Delta66 has 12 channels,
and our stubborn number 5461 is equal to 65536 / 12, integer division.
We haven't sought help from numerologists yet.

Our configuration files are available, if anyone would like to see
them, they can be found at:

http://www.hallenbeck.ftml.net/asound.conf, definitions of four playback
and four capture devices.

http://www.hallenbeck.ftml.net/asound.state, the Delta66 (ice1712)
configuration file.

http://www.hallenbeck.ftml.net/mixersettings, output from amixer showing
simple mixer controls and their settings.

http://www.hallenbeck.ftml.net/ices-alsa.xml, interface from the streaming
software to the sound card, just in case.

Thanks,
Chuck

-- 
The Moon is Waxing Crescent (48% of Full)
                  My web site: www.hallenbeck.ftml.net
               Audio editor, weblog: edway.wordpress.com
                                --------

The secret of a happy marriage is to treat all disasters as incidents,
and none of the incidents as a disaster. -- Harold Nicolson

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