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[ALSA]Abilitare sistema 5.1
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Cerberos86
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Joined: 13 Dec 2003
Posts: 581
Location: Padova

PostPosted: Tue Dec 07, 2004 11:48 pm    Post subject: [ALSA]Abilitare sistema 5.1 Reply with quote

Scheda madre ASUS a7n8x-x con chip Realtek integrato, audio 6 canali. Con alsa uso il modulo Intel8x10. Volevo attivare il sistema 5.1 che per ora proprio non si sente!
Ho tentato con amixer e diversi "amixer sset ...". Questo è l'outpu di amixer adesso:
Code:

(alcune voci sono state tagliate)
neo@cerberos neo $ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 23 [74%] [on]
  Front Right: Playback 23 [74%] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 16 [52%] [on]
  Front Right: Playback 16 [52%] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 31 [100%] [off]
  Front Right: Playback 31 [100%] [off]
Simple mixer control 'Surround Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch psw
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [on]
Simple mixer control 'Center/LFE Down Mix',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch psw
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 31 [100%] [on]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch pswitch-joined csw
clusive
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [off] Capture [off]
  Front Right: Playback 0 [0%] [off] Capture [off]
Simple mixer control 'Line-In As Surround',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Mic As Center/LFE',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Exchange Center/LFE',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Swap Surround Slot',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
eaker',0
  Capabilities: pvolume pvolume-joined pswitch psw
  Playback channels: Mono
  Limits: Playback 0 - 15


Eppure
Code:

neo@cerberos neo $ aplay -Drear /mp3/Black\ Album/1.wav
ALSA lib pcm.c:1851:(snd_pcm_open_conf) Invalid type for PCM rear definition (id: rear, value: cards.pcm.rear)
aplay: main:508: audio open error: Invalid argument


:?: :?: :?:

Con Xmms si sentono solo le 2 casse anteriori...

Thanks
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lavish
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Joined: 13 Sep 2004
Posts: 4295
Location: Venice Island, European Union

PostPosted: Wed Dec 08, 2004 8:36 am    Post subject: Reply with quote

Usa alsamixer che e' molto piu' comodo e alza i volumi relativi a surround.
Insomma... fai un po' di prove e dovrebbe andare! ;)

CiaO!
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fedeliallalinea
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Joined: 08 Mar 2003
Posts: 13200
Location: here

PostPosted: Wed Dec 08, 2004 10:27 am    Post subject: Reply with quote

lavish wrote:
Usa alsamixer che e' molto piu' comodo....

Devi scaricare il pacchetto alsa-utils
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Cerberos86
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Joined: 13 Dec 2003
Posts: 581
Location: Padova

PostPosted: Wed Dec 08, 2004 11:46 am    Post subject: Reply with quote

ho già emerso:
Code:

alsa-utils
alsa-oss

con alsamixer riesco a regolare i volumi ma NON attivare gli switch...
con gamix e kmix riesco a fare tutto ma anche settando i vari switch non cambia niente....
Ho fatto circa... un BORDELLO di prove! con cosa mi consigliate di testare se tutto funziona? Xmms và bene?
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midall
Tux's lil' helper
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Joined: 12 Mar 2004
Posts: 139

PostPosted: Wed Dec 08, 2004 1:05 pm    Post subject: Reply with quote

Dovresti provare ad usare un DVD con mplayer..
Con xmms se prova a sentire i tuoi mp3 ogg o altro sicurmante sono file con audio stereo quindi:
carica un dvd avvia mplayer con questo comando:

Code:
 mplayer dvd://1 -ao alsa alsa1x -channels 6


controlla tramite kmix o alsamixer chi siano attivi i canali surround central LFE

Bye
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Cerberos86
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Joined: 13 Dec 2003
Posts: 581
Location: Padova

PostPosted: Wed Dec 08, 2004 3:56 pm    Post subject: Reply with quote

con mplayer ho solo problemi... (non trova alsa1 ...)
Ho installato Xine e provato con un dvd e in effetti FUNZIONA!
Adesso, qualcuno sa se è possibile "simulare" un audio 5.1 anche con semplici file stereo? Su winzozz con iTunes ascoltavo mp3 con il sub che pompava a manetta...non è possibile fare qualcosa di simile?

Thanks
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