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5.1 et SB live 24 bits, marche pas :(

Slt,
Bon j'ai une Sound Blaster live 24 bits external en USB.
Le son marche partout en 2.1 (a par quand je veux ouvrir une video, totem me sort un truc dans le genre le serveur son est occupé, mais je crois avoir vu un truc dans le wiki pour remedier a ca).
Alors j'ai lu les sujets qui concernent ce probleme mais j'arrive toujours pas a le resoudre

speaker-test -D surround51:0 -c 6 -t 2 retourne:

Playback device is surround51:0
Stream parameters are 48000Hz, S16_LE, 6 channels
Sine wave rate is 440.0000Hz
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory
ALSA lib confmisc.c:990:(snd_func_refer) Unable to find definition 'cards.ENS1371.pcm.surround51.0:CARD=0'
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM surround51:0
Playback open error: -2,No such file or directory

Enfin bref il continu longtemps comme ca ^^

Mon asound.conf:
pcm.duplicate {
    type plug
    slave.pcm "surround51"
    slave.channels 6
    route_policy duplicate
}

Resultat de cat /proc/asound/pcm :

00-00: ES1371/1 : ES1371 DAC2/ADC : playback 1 : capture 1
00-01: ES1371/2 : ES1371 DAC1 : playback 1
01-00: VIA 8235 : VIA 8235 : playback 4 : capture 1
01-01: VIA 8235 : VIA 8235 : playback 1 : capture 1
02-00: USB Audio : USB Audio : playback 1 : capture 1

Resultat de cat /proc/asound/cards

0 [AudioPCI       ]: ENS1371 - Ensoniq AudioPCI
                     Ensoniq AudioPCI ENS1371 at 0xc000, irq 11
1 [V8235          ]: VIA8233 - VIA 8235
                     VIA 8235 with VIA1612A at 0xdc00, irq 11
2 [External       ]: USB-Audio - SB Live! 24-bit External
                     Creative Technology SB Live! 24-bit External at usb-0000:00:10.1-1, full speed

J'utilise bien alsasink device=duplicate

Voilou si vous avez besoin d'autres données je les donnent ^^
Donc comment reussir a avoir ce 5.1 ?!
Merci d'avance !