Ok, veja só os resultados:
danilo@desktop:~$ audacity
jackd 0.109.2
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support.
loading driver ..
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 2 periods for playback
**** alsa_pcm: xrun of at least 0.039 msecs
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
**** alsa_pcm: xrun of at least 0.038 msecs
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
**** alsa_pcm: xrun of at least 0.026 msecs
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
**** alsa_pcm: xrun of at least 0.092 msecs
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
**** alsa_pcm: xrun of at least 0.043 msecs
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
**** alsa_pcm: xrun of at least 0.035 msecs
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1034
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1066
**** alsa_pcm: xrun of at least 0.059 msecs
**** alsa_pcm: xrun of at least 0.124 msecs
**** alsa_pcm: xrun of at least 0.067 msecs
**** alsa_pcm: xrun of at least 0.051 msecs
**** alsa_pcm: xrun of at least 0.038 msecs
Pelo q vi o bug é nessa linha 1034, mas como arrumar?