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#1 2013-02-19 20:45:00

gondsman
Member
Registered: 2009-07-27
Posts: 84

Skype and pulseaudio

Hello, I've recently moved to pulseaudio on my x64 setup and almost everything is working perfectly, apart from a small issue with Skype.
I followed the the wiki and now Skype can use pulseaudio, but when I start it it makes any sound I may be playing (from basically any source) skip for half a second.
I realize it's a very minor issue, but annoying nevertheless.
In the pulseaudio logs, I see this:

(  38.235|  20.179) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.243|   0.008) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.244|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 5280 bytes.
(  38.244|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 5280 bytes.
(  38.244|   0.000) D: [alsa-sink] alsa-sink.c: before: 1320
(  38.248|   0.003) D: [alsa-sink] alsa-sink.c: after: 1320
(  38.250|   0.001) D: [alsa-sink] alsa-sink.c: Rewound 5280 bytes.
(  38.252|   0.002) D: [alsa-sink] sink.c: Processing rewind...
(  38.252|   0.000) D: [alsa-sink] sink.c: latency = 39900
(  38.253|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 5280 bytes on render memblockq.
(  38.253|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 9696 bytes on implementor.
(  38.253|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  38.256|   0.002) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.285|   0.029) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.285|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 9492 bytes.
(  38.285|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 9492 bytes.
(  38.285|   0.000) D: [alsa-sink] alsa-sink.c: before: 2373
(  38.285|   0.000) D: [alsa-sink] alsa-sink.c: after: 2373
(  38.285|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 9492 bytes.
(  38.285|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  38.285|   0.000) D: [alsa-sink] sink.c: latency = 8877
(  38.285|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 9492 bytes on render memblockq.
(  38.285|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 17448 bytes on implementor.
(  38.285|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  38.286|   0.000) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.286|   0.000) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.286|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 5544 bytes.
(  38.286|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 5544 bytes.
(  38.286|   0.000) D: [alsa-sink] alsa-sink.c: before: 1386
(  38.286|   0.000) D: [alsa-sink] alsa-sink.c: after: 1386
(  38.286|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 5544 bytes.
(  38.286|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  38.286|   0.000) D: [alsa-sink] sink.c: latency = 60587
(  38.286|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 5544 bytes on render memblockq.
(  38.286|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 10192 bytes on implementor.
(  38.286|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  38.442|   0.156) I: [alsa-sink] alsa-sink.c: Scheduling delay of 14.67ms, you might want to investigate this to improve latency...
(  38.722|   0.280) I: [alsa-sink] alsa-sink.c: Scheduling delay of 70.57ms, you might want to investigate this to improve latency...
(  38.724|   0.001) I: [alsa-sink] ratelimit.c: 96 events suppressed
(  38.725|   0.000) I: [alsa-sink] alsa-sink.c: Underrun!
(  38.725|   0.000) I: [alsa-sink] alsa-sink.c: Increasing wakeup watermark to 30.00 ms
(  38.730|   0.004) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.760|   0.029) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 26368 bytes.
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 16960 bytes.
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: before: 4240
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: after: 4240
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 16960 bytes.
(  38.760|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  38.760|   0.000) D: [alsa-sink] sink.c: latency = 1323
(  38.760|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 16960 bytes on render memblockq.
(  38.760|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 31176 bytes on implementor.
(  38.760|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  38.760|   0.000) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.760|   0.000) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 11388 bytes.
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 11388 bytes.
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: before: 2847
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: after: 2847
(  38.760|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 11388 bytes.
(  38.760|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  38.760|   0.000) D: [alsa-sink] sink.c: latency = 30068
(  38.760|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 11388 bytes on render memblockq.
(  38.760|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 20920 bytes on implementor.
(  38.760|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  38.761|   0.000) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.761|   0.000) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 6504 bytes.
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 6504 bytes.
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: before: 1626
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: after: 1626
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 6504 bytes.
(  38.761|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  38.761|   0.000) D: [alsa-sink] sink.c: latency = 55747
(  38.761|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 6504 bytes on render memblockq.
(  38.761|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 11944 bytes on implementor.
(  38.761|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  38.761|   0.000) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  38.761|   0.000) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 1556 bytes.
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 1556 bytes.
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: before: 389
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: after: 389
(  38.761|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 1556 bytes.
(  38.761|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  38.761|   0.000) D: [alsa-sink] sink.c: latency = 81537
(  38.761|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 1556 bytes on render memblockq.
(  38.761|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 2856 bytes on implementor.
(  38.761|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  39.004|   0.243) I: [alsa-sink] alsa-sink.c: Scheduling delay of 68.77ms, you might want to investigate this to improve latency...
(  39.005|   0.000) I: [alsa-sink] alsa-sink.c: Underrun!
(  39.005|   0.000) I: [alsa-sink] alsa-sink.c: Increasing wakeup watermark to 40.00 ms
(  39.007|   0.002) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  39.008|   0.001) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  39.008|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 13300 bytes.
(  39.008|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 13300 bytes.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: before: 3325
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: after: 3325
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 13300 bytes.
(  39.009|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  39.009|   0.000) D: [alsa-sink] sink.c: latency = 16932
(  39.009|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 13300 bytes on render memblockq.
(  39.009|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 24432 bytes on implementor.
(  39.009|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  39.009|   0.000) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  39.009|   0.000) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 9020 bytes.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 9020 bytes.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: before: 2255
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: after: 2255
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 9020 bytes.
(  39.009|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  39.009|   0.000) D: [alsa-sink] sink.c: latency = 42554
(  39.009|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 9020 bytes on render memblockq.
(  39.009|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 16576 bytes on implementor.
(  39.009|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  39.009|   0.000) D: [alsa-sink] protocol-native.c: Underrun on ''Vieni a ballare in Puglia' by 'CapaRezza'', 0 bytes in queue.
(  39.009|   0.000) D: [alsa-sink] protocol-native.c: Requesting rewind due to rewrite.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 4104 bytes.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 4104 bytes.
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: before: 1026
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: after: 1026
(  39.009|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 4104 bytes.
(  39.009|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  39.009|   0.000) D: [alsa-sink] sink.c: latency = 68286
(  39.009|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 4104 bytes on render memblockq.
(  39.009|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 7544 bytes on implementor.
(  39.009|   0.000) D: [alsa-sink] source.c: Processing rewind...

The "underrun" notices are probably the issue here, but I couldn't find informations on similar errors.
Thanks for the help!

EDIT: from time to time, I also get some crackling sound after/during skype notifications.

Last edited by gondsman (2013-02-19 22:11:03)

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