Default alsa value with pulseaudio

hi,

When using gnuradio with the default values [1] , the sound is
fragmented when played with pulseaudio .

Using the alsa device by name is acceptable, this not a best practice
[2]

multimode.py --ahw=hw:3,0

Changing the nperiods from 4 to 25 solves the issue and gnuradio play
nicely with pulseaudio

[audio_alsa]

default_input_device = default
default_output_device = default
period_time = 0.010
nperiods = 25 # 4 is too low for pulsaudio hook
verbose = false

I did not find any information about this issue or if this is related to
the value of min_nperiods, max_nperiods [3] with pulseaudio , those
values are not printed out .

is there a way to get a verbose output without recompiling from
source ?

thanks in advance

1 :
http://gnuradio.org/redmine/projects/gnuradio/repository/revisions/master/annotate/gr-audio/lib/alsa/gr-audio-alsa.conf

2 : http://gnuradio.org/redmine/issues/551

3
:http://gnuradio.org/redmine/projects/gnuradio/repository/revisions/master/entry/gr-audio/lib/alsa/alsa_source.cc#L182

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