[Pkg-audacious-maintainers] Bug#549925: alsa output started munging sound

Tue Oct 6 10:45:01 UTC 2009

Package: audacious
Version: 2.1-1

Hi,

I ran into a bizarre problem with audio, and I didn't notice it until a few
hours of play :) audio output has been shifted a few notes down and slightly
slowed down, when played through the Audacious ALSA plugin. As soon as I
switch to the OSS output plugin, everything is back to normal.

To make sure it's not ALSA as a whole that's misbehaving, I've tried to
reproduce it with sox(1) (with libsox-fmt-oss and libsox-fmt-alsa), like
this:
% sox /win/WINDOWS/Media/tada.wav -t alsa default
% sox /win/WINDOWS/Media/tada.wav -t oss /dev/dsp
But both of those played the sound correctly -- the same at least, and the
same as the Audacious OSS output -- so I'm thinking Audacious ALSA plugin
is at fault.

I had previously fiddled with buffering settings (because the Audacious
version in lenny and with an older kernel used to skip a lot on this
machine under load), but I don't believe I selected any setting that would
need to cause this kind of distortion.

% cat ~/.audacious/config
[audacious]
allow_multiple_instances=FALSE
use_realtime=FALSE
always_show_cb=TRUE
convert_underscore=TRUE
convert_twenty=TRUE
show_numbers_in_pl=TRUE
show_separator_in_pl=TRUE
snap_windows=TRUE
save_window_positions=TRUE
dim_titlebar=TRUE
get_info_on_load=FALSE
get_info_on_demand=TRUE
eq_doublesize_linked=TRUE
no_playlist_advance=FALSE
refresh_file_list=TRUE
sort_jump_to_file=FALSE
use_pl_metadata=TRUE
warn_about_unplayables=TRUE
use_backslash_as_dir_delimiter=FALSE
player_shaded=FALSE
player_visible=TRUE
shuffle=TRUE
repeat=FALSE
doublesize=TRUE
autoscroll_songname=TRUE
stop_after_current_song=FALSE
playlist_shaded=FALSE
playlist_visible=TRUE
playlist_transparent=FALSE
use_fontsets=FALSE
equalizer_visible=FALSE
equalizer_active=FALSE
equalizer_shaded=FALSE
equalizer_autoload=FALSE
easy_move=FALSE
use_eplugins=FALSE
always_on_top=FALSE
sticky=FALSE
random_skin_on_play=FALSE
pause_between_songs=FALSE
show_wm_decorations=FALSE
eq_extra_filtering=TRUE
analyzer_peaks=TRUE
custom_cursors=TRUE
close_dialog_open=TRUE
close_dialog_add=TRUE
resume_playback_on_startup=FALSE
playlist_detect=FALSE
show_filepopup_for_tuple=TRUE
recurse_for_cover=FALSE
use_file_cover=FALSE
use_xmms_style_fileselector=FALSE
player_x=378
player_y=127
timer_mode=0
vis_type=0
analyzer_mode=0
analyzer_type=1
scope_mode=0
vu_mode=1
vis_refresh_rate=0
analyzer_falloff=3
peaks_falloff=1
playlist_x=378
playlist_y=359
playlist_width=550
playlist_height=522
playlist_position=64
equalizer_x=392
equalizer_y=384
snap_distance=10
pause_between_songs_time=2
mouse_wheel_change=8
scroll_pl_by=3
titlestring_preset=2
resume_playback_on_startup_time=195681
output_buffer_size=3000
recurse_for_cover_depth=0
filepopup_pixelsize=150
filepopup_delay=20
mainwin_use_xfont=FALSE
playlist_font=Sans Bold 8
mainwin_font=Sans Bold 9
eqpreset_default_file=dir_default.preset
eqpreset_extension=preset
generic_title_format=%{p:%p - %}%{a:%a - %}%t
cover_name_exclude=back
equalizer_preamp=0
equalizer_band0=0
equalizer_band1=0
equalizer_band2=0
equalizer_band3=0
equalizer_band4=0
equalizer_band5=0
equalizer_band6=0
equalizer_band7=0
equalizer_band8=0
equalizer_band9=0
skin=/usr/share/audacious/Skins/Default
output_plugin=/usr/lib/audacious/Output/libALSA.so
url_history_length=0
filesel_path=/bla1/novimp3

[ALSA]
buffer_time=500
period_time=100
pcm_device=default
mixer_card=0
mixer_device=PCM
soft_volume=FALSE
volume_left=100
volume_right=100

% lsmod | grep snd
snd_intel8x0           34760  1 
snd_ac97_codec        123096  1 snd_intel8x0
ac97_bus                2096  1 snd_ac97_codec
snd_pcm_oss            41664  1 
snd_mixer_oss          18176  1 snd_pcm_oss
snd_pcm                81080  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_seq_oss            32224  0 
snd_seq_midi            7856  0 
snd_rawmidi            23568  1 snd_seq_midi
snd_seq_midi_event      7824  2 snd_seq_oss,snd_seq_midi
snd_seq                57664  5 snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              23120  2 snd_pcm,snd_seq
snd_seq_device          7748  4 snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd                    63816  10 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
snd_page_alloc          9824  2 snd_intel8x0,snd_pcm

% cat /proc/asound/cards 
 0 [CK804          ]: NFORCE - NVidia CK804
                      NVidia CK804 with ALC850 at irq 23

% uname -a
Linux pork 2.6.30.8 #3 SMP PREEMPT Mon Sep 28 00:03:01 CEST 2009 x86_64 GNU/Linux

If you need more information, please don't hesitate to ask. TIA.

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