Administrace komentářů

Rozchodil jsem ovladac pod ALSOU 1.0.9b, vytvori se mi nasledujici zarizeni:

/dev/sound/dsp1
/dev/sound/audio1
/dev/sound/mixer1
/dev/snd/pcmC1D0p
/dev/snd/pcmC1D0c
/dev/snd/controlC1

Coz je skvele.

Pomoci alsamixer -c 1 jiz vidim tri kanaly, ktere maji vsechny nazev Speaker, na pohybovani s nimi karta reaguje blikanim (ma takove indikatory), takze to vypada docela dobre.

lzap@teepee ~/QCM/LE507/INZERCE $ amixer -c 1
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Front Left: Playback 191 [75%] [off]
  Front Right: Playback 191 [75%] [off]
Simple mixer control 'Speaker',1
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Front Left: Playback 191 [75%] [off]
  Front Right: Playback 191 [75%] [off]
Simple mixer control 'Speaker',2
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Front Left: Playback 255 [100%] [on]
  Front Right: Playback 255 [100%] [on]

Tato karta vsak ma 2x2 stereo kanaly.

Nicmene karta nehraje:

lzap@teepee ~ $ aplay -Dusb-audio /usr/share/sounds/alsa/
Front_Center.wav: Signed 16 bit Little Endian, Rate 48000 Hz, Mono
aplay: set_params:887: Channels count non available

Tak bych se chtel zeptat na jinou vec - kde najdu nejakou dokumentaci k tem definicim ALSA kanalu? Asi to bude vyzadovat nadefinovat si vstupy a vystupy te karty v .asoundrc nebo nekde jinde. Vubec tomu nerozumim...

Nebo v cem jinem to muze byt? Nektere USB karty vyzaduji firmware, ale vyrobce teto uvadi, ze vyhovuje "USB Audio Class Spec Ver 1.0".

Zde je moje stavajici konfigurace:

lzap@teepee ~ $ aplay -L
PCM list:
hw {
        @args.0 CARD
        @args.1 DEV
        @args.2 SUBDEV
        @args.CARD {
                type string
                default {
                        @func getenv
                        vars {
                                0 ALSA_PCM_CARD
                                1 ALSA_CARD
                        }
                        default {
                                @func refer
                                name 'defaults.pcm.card'
                        }
                }
        }
        @args.DEV {
                type integer
                default {
                        @func igetenv
                        vars {
                                0 ALSA_PCM_DEVICE
                        }
                        default {
                                @func refer
                                name 'defaults.pcm.device'
                        }
                }
        }
        @args.SUBDEV {
                type integer
                default {
                        @func refer
                        name 'defaults.pcm.subdevice'
                }
        }
        type hw
        card $CARD
        device $DEV
        subdevice $SUBDEV
}
plughw {
        @args.0 CARD
        @args.1 DEV
        @args.2 SUBDEV
        @args.CARD {
                type string
                default {
                        @func getenv
                        vars {
                                0 ALSA_PCM_CARD
                                1 ALSA_CARD
                        }
                        default {
                                @func refer
                                name 'defaults.pcm.card'
                        }
                }
        }
        @args.DEV {
                type integer
                default {
                        @func igetenv
                        vars {
                                0 ALSA_PCM_DEVICE
                        }
                        default {
                                @func refer
                                name 'defaults.pcm.device'
                        }
                }
        }
        @args.SUBDEV {
                type integer
                default {
                        @func refer
                        name 'defaults.pcm.subdevice'
                }
        }
        type plug
        slave.pcm {
                type hw
                card $CARD
                device $DEV
                subdevice $SUBDEV
        }
}
plug {
        @args.0 SLAVE
        @args.SLAVE {
                type string
        }
        type plug
        slave.pcm $SLAVE
}
shm {
        @args.0 SOCKET
        @args.1 PCM
        @args.SOCKET {
                type string
        }
        @args.PCM {
                type string
        }
        type shm
        server $SOCKET
        pcm $PCM
}
tee {
        @args.0 SLAVE
        @args.1 FILE
        @args.2 FORMAT
        @args.SLAVE {
                type string
        }
        @args.FILE {
                type string
        }
        @args.FORMAT {
                type string
                default raw
        }
        type file
        slave.pcm $SLAVE
        file $FILE
        format $FORMAT
}
file {
        @args.0 FILE
        @args.1 FORMAT
        @args.FILE {
                type string
        }
        @args.FORMAT {
                type string
                default raw
        }
        type file
        slave.pcm null
        file $FILE
        format $FORMAT
}
null {
        type null
}
cards 'cards.pcm'
front 'cards.pcm.front'
rear 'cards.pcm.rear'
center_lfe 'cards.pcm.center_lfe'
side 'cards.pcm.side'
surround40 'cards.pcm.surround40'
surround41 'cards.pcm.surround41'
surround50 'cards.pcm.surround50'
surround51 'cards.pcm.surround51'
surround71 'cards.pcm.surround71'
iec958 'cards.pcm.iec958'
spdif 'cards.pcm.iec958'
modem 'cards.pcm.modem'
default 'cards.pcm.default'
dmix 'cards.pcm.dmix'
dsnoop 'cards.pcm.dsnoop'
dsp0 {
        type plug
        slave.pcm dmix
}
intel8x0 {
        type hw
        card 0
}
usb-audio {
        type hw
        card 1
}