[pulseaudio-discuss] selective sound amplification by frequency @ PulseAudio.

[Adam Sulmicki]

Folks,

I have followed the suggestions given by Tanu Kaskinen, sadly I'm having
problems. With new settings the program crashes with memory protection
violation. Despite repeated attempts, I am unable to produce a meaningful bt
under gdb. Furthermore, pulseaudio does not seem to run for me under
valgrind.

THEREFORE, the question is: Can anyone else duplicate the problem?

% cat /etc/fedora-release
Fedora release 8 (Werewolf)

% rpm -q pulseaudio ladspa-swh-plugins
pulseaudio-0.9.7-0.17.svn20071017.fc8
ladspa-swh-plugins-0.4.15-11.fc8

%cat ~/.pulse/match.table
.* 32000

% tail -4 /etc/pulse/default.pa
load-module module-match

load-module module-ladspa-sink sink_name=ladspa_out channels=2
master=alsa_output.pci_1274_5000_alsa_playback_0 plugin=mbeq_1197 label=mbeq
control=0,0,5,10,20,25,35,45,50,50,55,55,55,55,55

%  pulseaudio -v
I: main.c: Page size is 4096 bytes
I: main.c: Fresh high-resolution timers available! Bon appetit!
I: module-hal-detect.c: Trying capability alsa
I: module-alsa-sink.c: Successfully enabled mmap() mode.
I: alsa-util.c: Using mixer control "Master".
I: sink.c: Created sink 0 "alsa_output.pci_1274_5000_alsa_playback_0" with
sample spec "s16le 2ch 44100Hz"
I: source.c: Created source 0
"alsa_output.pci_1274_5000_alsa_playback_0.monitor" with sample spec "s16le
2ch 44100Hz"
I: module-alsa-sink.c: Using 4 fragments of size 4408 bytes.
I: module-alsa-sink.c: Starting playback.
I: module.c: Loaded "module-alsa-sink" (index: #0; argument: "device=hw:0
sink_name=alsa_output.pci_1274_5000_alsa_playback_0").
I: module-alsa-source.c: Successfully enabled mmap() mode.
W: alsa-util.c: Cannot find mixer control "Capture".
I: source.c: Created source 1 "alsa_input.pci_1274_5000_alsa_capture_0" with
sample spec "s16le 2ch 44100Hz"
I: module-alsa-source.c: Using 4 fragments of size 4408 bytes.
I: module.c: Loaded "module-alsa-source" (index: #1; argument: "device=hw:0
source_name=alsa_input.pci_1274_5000_alsa_capture_0").
I: module-hal-detect.c: Loaded 2 modules.
I: module.c: Loaded "module-hal-detect" (index: #2; argument: "").
I: module.c: Loaded "module-esound-protocol-unix" (index: #3; argument: "").
I: protocol-native.c: loading cookie from disk.
I: module.c: Loaded "module-native-protocol-unix" (index: #4; argument: "").
I: module.c: Loaded "module-volume-restore" (index: #5; argument: "").
I: module.c: Loaded "module-default-device-restore" (index: #6; argument:
"").
I: module.c: Loaded "module-rescue-streams" (index: #7; argument: "").
I: module.c: Loaded "module-suspend-on-idle" (index: #8; argument: "").
I: module.c: Loaded "module-x11-publish" (index: #9; argument: "").
I: module.c: Loaded "module-gconf" (index: #10; argument: "").
I: module.c: Loaded "module-match" (index: #11; argument: "").
E: module-ladspa-sink.c: Cannot handle type of port latency
I: sink.c: Created sink 1 "ladspa_out" with sample spec "float32le 2ch
44100Hz"
I: source.c: Created source 2 "ladspa_out.monitor" with sample spec
"float32le 2ch 44100Hz"
I: resampler.c: Forcing resampler 'copy', because of fixed, identical sample
rates.
I: resampler.c: Using resampler 'copy'
I: resampler.c: Using float32le as working format.
I: sink-input.c: Created input 0 "LADSPA Stream" on
alsa_output.pci_1274_5000_alsa_playback_0 with sample spec float32le 2ch
44100Hz
I: module.c: Loaded "module-ladspa-sink" (index: #12; argument:
"sink_name=ladspa_out channels=2
master=alsa_output.pci_1274_5000_alsa_playback_0 plugin=mbeq_1197 label=mbeq
control=0,0,5,10,20,25,35,45,50,50,55,55,55,55,55").
I: main.c: Daemon startup complete.
Naruszenie ochrony pamięci

% dmesg | tail -1
exe[7827]: segfault at 752f3a61 eip 0032a8d9 esp b7a96520 error 6



PS : any idea what program this picture is from?
http://www.linux-user.de/ausgabe/2003/11/026-muse/07_equalizer.png
It is in german so I can't quite figure out, but it does mention "multiband
equalization". The whole article is here :
http://www.linux-user.de/ausgabe/2003/11/026-muse/ .


-- 
Adam Sulmicki
http://www.eax.com      The Supreme Headquarters of the 32 bit registers
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20080109/e06e99b4/attachment.htm>