flow control problem, FC11, pulseaudio, and alsa

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Hi ALSA Users,

While i was able to get my audio streaming recently by disabling the 
glitchfree parameter, its now failing again.

i am using fc11 and mplayer to play an asf network stream. when i launch 
the mplayer, i get, ...

mplayer -ao alsa -cache 2048  
http://74.201.24.2:80/live_mapleton_vitalstream_com_kpigfm?MSWMExt=.asf
MPlayer SVN-r28483-4.3.2 (C) 2000-2009 MPlayer Team
CPU: Intel(R) Xeon(TM) CPU 3.06GHz (Family: 15, Model: 2, Stepping: 5)

Playing 
http://74.201.24.2:80/live_mapleton_vitalstream_com_kpigfm?MSWMExt=.asf.
Connecting to server 74.201.24.2[74.201.24.2]: 80...
STREAM_ASF, URL: 
http://74.201.24.2:80/live_mapleton_vitalstream_com_kpigfm?MSWMExt=.asf
Connecting to server 74.201.24.2[74.201.24.2]: 80...
Connecting to server 74.201.24.2[74.201.24.2]: 80...
Cache size set to 2048 KBytes
Cache fill: 19.92% (417792 bytes)
ASF file format detected.
[asfheader] Audio stream found, -aid 1
Clip info:
  name: KPIG-FM
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, s16le, 64.0 kbit/4.17% (ratio: 8001->192000)
Selected audio codec: [ffwmav2] afm: ffmpeg (DivX audio v2 (FFmpeg))
==========================================================================
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A:1245761.9 (346:02:41.9) of 2133437440.0 (-24.-8)  0.4% 14%

MPlayer interrupted by signal 2 in module: play_audio
A:1245761.9 (346:02:41.9) of 2133437440.0 (-24.-8)  0.4% 14%

the final line here being the alsa player output. the very last item, 
the 14% starts off around 19% and slowly
drops to 0 where i lose the stream.

as i have had no trouble until today on this bit, i know my network 
connection is fast enough,
but the alsa isn't keeping pace. also, i am seeing,

alsa-sink.c: Underrun!

is there anyone on this list that suggest how to fix this issue?

tia, jackc...

-- 
    jack craig
       jackc@xxxxxxxxxxxxxxxxxxx
          831-684-1375 (Office)
             831-596-6924 (cell)
                IM: jackcraigaptos (AIM)

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