Difference between revisions of "Audio in 1004"

Latest revision as of 18:37, 10 February 2013

Alternate sound configurations can be set in /etc/pluto.conf. MOST sound cards should work out of the box, and do not require this parameter. This parameter may be written by /usr/pluto/bin/nvidia-install.sh for various GT chipsets. This can be done at avwizard on the Audio Selector step 5, or at any time by running /usr/pluto/bin/SetupAudioVideo.sh NOTE: Audio should NOT be actively playing when running SetupAudioVideo.sh.

Auto-detection is attempted when specific packages are installed, or if the pluto.conf "AlternateSC" setting is null or = 0. In most cases, this value will never exist.

Below are example /etc/asound.conf files generated by these configurations. /etc/pluto/xine.conf files borrow the card# and device# (if any) in the same way as the asound.conf

AlternateSC = null : Most cards function without this parameter, this is the default state.

Analog, Optical, Coax and HDMI are treated the way they always have been, given only the card# to write to the confs.
nVidia GT series HDMI is automatically detected, and given a special set of values, also using the card# and the device#.

AlternateSC = 1 : Should only be necessary for analog multi-channel.

Analog Multi-channel are given the card# and the device# to write to the confs.

AlternateSC = 2 : Should only be necessary for oddballs that do not work under other two schemes, covers older equipment. This additionally changes the xine.conf scheme.

Analog, Optical, Coax, HDMIare given an extended scheme, including both the card# and device#.

AlternateSC = 0 or null

Analog, Optical, Coax, HDMI

</etc/pluto/alsa/virtual_cards.conf>

pcm_slave.analog_convert48k {
       pcm "analog_8:0,0"
}

pcm.analog_playback {
       type plug
       slave analog_convert48k
}

!default {
       type asym
       playback.pcm "analog_playback:0,0"
       capture.pcm "plughw:0,0"
}

AlternateSC = 1

Analog Multi-channel, Optical, Coax, and HDMI

</etc/pluto/alsa/virtual_cards.conf>

pcm.analog_6 {
       slave.pcm surround51
       slave.rate 48000
       slave.channels 6
       type route
       ttable.0.0 1
       ttable.1.1 1
       ttable.0.2 1
       ttable.1.3 1
       ttable.0.4 0.5
       ttable.1.4 0.5
       ttable.0.5 0.5
       ttable.1.5 0.5
}

pcm.analog_8 {
       slave.pcm multi
       slave.rate 48000
       slave.channels 8
       type route
       ttable.0.0 1.0
       ttable.1.1 1.0
       ttable.2.2 1.0
       ttable.3.3 1.0
       ttable.4.4 1.0
       ttable.5.5 1.0
       ttable.0.6 1.0
       ttable.1.7 1.0
       ttable.2.6 0.7
       ttable.3.7 0.7
       ttable.4.6 0.7
       ttable.4.7 0.7
       ttable.5.6 0.5
       ttable.5.7 0.5
}

pcm_slave.analog_convert48k {
       pcm "analog_8:0,0"
}

pcm.analog_playback {
       type plug
       slave analog_convert48k
}

!default {
       type asym
       playback.pcm "analog_playback:0,0"
       capture.pcm "plughw:0,0"
}

AlternateSC = 2

Analog, Optical, Coax, and HDMI

</etc/pluto/alsa/virtual_cards.conf>

pcm_slave.hdmi_convert48k {
       pcm "hw:0"
       rate 48000
}

pcm.hdmi_playback {
       type plug
       slave hdmi_convert48k
}

!default {
       type asym
       playback.pcm "hdmi_playback"
       capture.pcm "hw:0"
}

xine.conf

In conditions of null, 0 values of AlternateSC for multi-channel audio, the last 4 lines of /etc/pluto/xine.conf looks like this

audio.device.alsa_front_device:plughw:0,3
audio.device.alsa_default_device:plughw:0,3
audio.output.speaker_arrangement:Pass Through
audio.device.alsa_passthrough_device:plughw:0,3

In the case AlternateSC = 1, some sound cards cease functioning when the Pass Through arrangement is specified, instead of just the passthrough device.

audio.device.alsa_front_device:plughw:0,3
audio.device.alsa_default_device:plughw:0,3
audio.device.alsa_passthrough_device:plughw:0,3

All stereo analog appears like so:

audio.device.alsa_front_device:plughw:0,0
audio.device.alsa_default_device:plughw:0,0
audio.output.speaker_arrangement:Stereo 2.0

Except in the case of 2, when it appears like so:

audio.device.alsa_front_device:hw:0
audio.device.alsa_default_device:hw:0
audio.output.speaker_arrangement:Stereo 2.0

Difference between revisions of "Audio in 1004"

Latest revision as of 18:37, 10 February 2013

Contents

AlternateSC = 0 or null

Analog, Optical, Coax, HDMI

AlternateSC = 1

Analog Multi-channel, Optical, Coax, and HDMI

AlternateSC = 2

Analog, Optical, Coax, and HDMI

xine.conf

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@@ Line 1: / Line 1: @@
-[[Category:Installation Tutorials| Installation Tutorials]]
+[[Category:Installation Tutorials]]
+[[Category:Hardware]]
 {| align="right"
    | __TOC__
    |}
-Alternate sound configurations can be set in /etc/pluto.conf. MOST sound cards should work out of the box, and do not require this parameter. This can be done at avwizard on the [http://wiki.linuxmce.org/index.php/AVWizard_Step_by_Step#Audio_Output_Connector Audio Selector step 5], or at any time by running [http://svn.linuxmce.org/trac.cgi/browser/branches/LinuxMCE-1004/src/BootScripts/SetupAudioVideo.sh /usr/pluto/bin/SetupAudioVideo.sh] '''NOTE: Audio/video should NOT be actively playing when running SetupAudioVideo.sh.'''
+Alternate sound configurations can be set in /etc/pluto.conf. MOST sound cards should work out of the box, and do not require this parameter. This parameter may be written by [http://svn.linuxmce.org/trac.cgi/browser/branches/LinuxMCE-1004/src/BootScripts/nvidia-install.sh /usr/pluto/bin/nvidia-install.sh] for various GT chipsets. This can be done at avwizard on the [http://wiki.linuxmce.org/index.php/AVWizard_Step_by_Step#Audio_Output_Connector Audio Selector step 5], or at any time by running [http://svn.linuxmce.org/trac.cgi/browser/branches/LinuxMCE-1004/src/BootScripts/SetupAudioVideo.sh /usr/pluto/bin/SetupAudioVideo.sh] '''NOTE: Audio should NOT be actively playing when running SetupAudioVideo.sh.'''
+Auto-detection is attempted when specific packages are installed, or if the pluto.conf "AlternateSC" setting is null or = 0. In most cases, this value will never exist.
-Below are example /etc/asound.conf files generated by these configurations. /etc/pluto/xine.conf files borrow the card# and device# (if any) as shown by the asound.conf
+Below are example /etc/asound.conf files generated by these configurations. /etc/pluto/xine.conf files borrow the card# and device# (if any) in the same way as the asound.conf
 '''AlternateSC = null''' : Most cards function without this parameter, this is the default state.
@@ Line 14: / Line 16: @@
-'''AlternateSC = 1''' : Should only be necessary with some newer non-GT series nvidia and oddballs.
+'''AlternateSC = 1''' : Should only be necessary for analog multi-channel.
-* [http://wiki.linuxmce.org/index.php/Audio_in_1004#AlternateSC_.3D_1 Analog, Optical, Coax, HDMI] are given the card# and the device# to write to the confs.
+* [http://wiki.linuxmce.org/index.php/Audio_in_1004#AlternateSC_.3D_1 Analog Multi-channel]  are given the card# and the device# to write to the confs.
-'''AlternateSC = 2''' : should only be necessary for HDMI oddballs that do not work under other two schemes, covers newer equipment.
+'''AlternateSC = 2''' : Should only be necessary for oddballs that do not work under other two schemes, covers older equipment. This additionally changes the [http://wiki.linuxmce.org/index.php/Audio_in_1004#xine.conf xine.conf] scheme.
-* [http://wiki.linuxmce.org/index.php/Audio_in_1004#AlternateSC_.3D_2 HDMI] are given the GT series extended scheme, including both the card# and device#.
+* [http://wiki.linuxmce.org/index.php/Audio_in_1004#AlternateSC_.3D_2 Analog, Optical, Coax, HDMI]are given an extended scheme, including both the card# and device#.
-==AlternateSC = null==
+==AlternateSC = 0 or null==
 ===Analog, Optical, Coax, HDMI===
   </etc/pluto/alsa/virtual_cards.conf>
-  pcm_slave.spdif_convert48k {
+  pcm_slave.analog_convert48k {
- 	pcm "spdif:0"
+        pcm "analog_8:0,0"
- 	rate 48000
   }
-  pcm.spdif_playback {
+  pcm.analog_playback {
- 	type plug
+        type plug
- 	slave spdif_convert48k
+        slave analog_convert48k
   }
-  pcm_slave.hdmi_convert48k {
+  !default {
- 	pcm "hdmi:0"
+        type asym
- 	rate 48000
+        playback.pcm "analog_playback:0,0"
+        capture.pcm "plughw:0,0"
   }
- pcm.hdmi_playback {
- 	type plug
- 	slave hdmi_convert48k
- }
- pcm.asym_spdif {
- 	type asym
- 	playback.pcm "spdif_playback"
- 	capture.pcm "plughw:0"
- }
- pcm.asym_hdmi {
- 	type asym
- 	playback.pcm "hdmi_playback"
- 	capture.pcm "plughw:0"
- }
- pcm.asym_analog {
- 	type asym
- 	playback.pcm "plug:dmix:0"
- 	capture.pcm "plughw:0"
- }
- pcm.!default asym_analog
+==AlternateSC = 1==
-===nVidia GT series HDMI===
+===Analog Multi-channel, Optical, Coax, and HDMI===
   </etc/pluto/alsa/virtual_cards.conf>
-  pcm_slave.spdif_convert48k {
+  pcm.analog_6 {
- 	pcm "spdif:1,7"
+        slave.pcm surround51
- 	rate 48000
+        slave.rate 48000
+        slave.channels 6
+        type route
+        ttable.0.0 1
+        ttable.1.1 1
+        ttable.0.2 1
+        ttable.1.3 1
+        ttable.0.4 0.5
+        ttable.1.4 0.5
+        ttable.0.5 0.5
+        ttable.1.5 0.5
   }
-  pcm.spdif_playback {
+  pcm.analog_8 {
- 	type plug
+        slave.pcm multi
- 	slave spdif_convert48k
+        slave.rate 48000
+        slave.channels 8
+        type route
+        ttable.0.0 1.0
+        ttable.1.1 1.0
+        ttable.2.2 1.0
+        ttable.3.3 1.0
+        ttable.4.4 1.0
+        ttable.5.5 1.0
+        ttable.0.6 1.0
+        ttable.1.7 1.0
+        ttable.2.6 0.7
+        ttable.3.7 0.7
+        ttable.4.6 0.7
+        ttable.4.7 0.7
+        ttable.5.6 0.5
+        ttable.5.7 0.5
   }
-  pcm_slave.hdmi_convert48k {
+  pcm_slave.analog_convert48k {
- 	pcm "hdmi:1,7"
+        pcm "analog_8:0,0"
- 	rate 48000
   }
-  pcm.hdmi_playback {
+  pcm.analog_playback {
- 	type plug
+        type plug
- 	slave hdmi_convert48k
+        slave analog_convert48k
   }
-  pcm.asym_spdif {
+  !default {
- 	type asym
+        type asym
- 	playback.pcm "spdif_playback"
+        playback.pcm "analog_playback:0,0"
- 	capture.pcm "plughw:1,7"
+        capture.pcm "plughw:0,0"
   }
- pcm.asym_hdmi {
- 	type asym
- 	playback.pcm "hdmi_playback"
- 	capture.pcm "plughw:1,7"
- }
- pcm.asym_analog {
- 	type asym
- 	playback.pcm "plug:dmix:1,7"
- 	capture.pcm "plughw:1,7"
- }
- pcm.!hdmi {
- 	@args [ AES0 AES1 AES2 AES3 ]
- 	@args.AES0 {
- 		type integer
- 		# consumer, not-copyright, emphasis-none, mode=0
- 		default 0x04
- 	}
- 	@args.AES1 {
- 		type integer
- 		# original, PCM coder
- 		default 0x00
- 	}
- 	@args.AES2 {
- 		type integer
- 		# source and channel
- 		default 0x00
- 	}
- 	@args.AES3 {
- 		type integer
- 		# fs=48000Hz, clock accuracy=1000ppm
- 		default 0x00
- 	}
- 	type hooks
- 	slave.pcm {
- 		type hw
- 		card 1
- 		device 7
- 	}
- 	hooks.0 {
- 		type ctl_elems
- 		hook_args [
- 		{
- 			name "IEC958 Playback Default"
- 			lock true
- 			preserve true
- 			value [ $AES0 $AES1 $AES2 $AES3 ]
- 		}
- 		{
- 			name "IEC958 Playback Switch"
- 			lock true
- 			preserve true
- 			value true
- 		}
- 		]
- 	}
- }
- pcm.!default asym_hdmi
+==AlternateSC = 2==
-==AlternateSC = 1==
 ===Analog, Optical, Coax, and HDMI===
   </etc/pluto/alsa/virtual_cards.conf>
- pcm_slave.spdif_convert48k {
- 	pcm "spdif:0,3"
- 	rate 48000
- }
- pcm.spdif_playback {
- 	type plug
- 	slave spdif_convert48k
- }
   pcm_slave.hdmi_convert48k {
- 	pcm "hdmi:0,3"
+        pcm "hw:0"
- 	rate 48000
+        rate 48000
   }
   pcm.hdmi_playback {
- 	type plug
+        type plug
- 	slave hdmi_convert48k
+        slave hdmi_convert48k
   }
-  pcm.asym_spdif {
+  !default {
- 	type asym
+        type asym
- 	playback.pcm "spdif_playback"
+        playback.pcm "hdmi_playback"
- 	capture.pcm "plughw:0,3"
+        capture.pcm "hw:0"
   }
- pcm.asym_hdmi {
- 	type asym
- 	playback.pcm "hdmi_playback"
- 	capture.pcm "plughw:0,3"
- }
- pcm.asym_analog {
- 	type asym
- 	playback.pcm "plug:dmix:0,3"
- 	capture.pcm "plughw:0,3"
- }
- pcm.!default asym_hdmi
+==xine.conf==
+In conditions of null, 0 values of AlternateSC for multi-channel audio, the last 4 lines of /etc/pluto/xine.conf looks like this
+ audio.device.alsa_front_device:plughw:0,3
+ audio.device.alsa_default_device:plughw:0,3
+ audio.output.speaker_arrangement:Pass Through
+ audio.device.alsa_passthrough_device:plughw:0,3
-==AlternateSC = 2==
+In the case AlternateSC = 1, some sound cards cease functioning when the Pass Through arrangement is specified, instead of just the passthrough device.
-===HDMI===
+  audio.device.alsa_front_device:plughw:0,3
- </etc/pluto/alsa/virtual_cards.conf>
+  audio.device.alsa_default_device:plughw:0,3
+  audio.device.alsa_passthrough_device:plughw:0,3
- pcm_slave.spdif_convert48k {
- 	pcm "spdif:0,3"
+All stereo analog appears like so:
- 	rate 48000
+  audio.device.alsa_front_device:plughw:0,0
- }
+  audio.device.alsa_default_device:plughw:0,0
+  audio.output.speaker_arrangement:Stereo 2.0
-  pcm.spdif_playback {
- 	type plug
+Except in the case of 2, when it appears like so:
- 	slave spdif_convert48k
+ audio.device.alsa_front_device:hw:0
- }
+ audio.device.alsa_default_device:hw:0
+  audio.output.speaker_arrangement:Stereo 2.0
- pcm_slave.hdmi_convert48k {
- 	pcm "hdmi:0,3"
- 	rate 48000
-  }
- pcm.hdmi_playback {
- 	type plug
- 	slave hdmi_convert48k
- }
- pcm.asym_spdif {
- 	type asym
- 	playback.pcm "spdif_playback"
- 	capture.pcm "plughw:0,3"
- }
-  pcm.asym_hdmi {
- 	type asym
- 	playback.pcm "hdmi_playback"
- 	capture.pcm "plughw:0,3"
-  }
- pcm.asym_analog {
- 	type asym
- 	playback.pcm "plug:dmix:1,7"
- 	capture.pcm "plughw:0,3"
-  }
- pcm.!hdmi {
- 	@args [ AES0 AES1 AES2 AES3 ]
- 	@args.AES0 {
- 		type integer
- 		# consumer, not-copyright, emphasis-none, mode=0
- 		default 0x04
- 	}
- 	@args.AES1 {
- 		type integer
- 		# original, PCM coder
- 		default 0x00
- 	}
- 	@args.AES2 {
- 		type integer
- 		# source and channel
- 		default 0x00
- 	}
- 	@args.AES3 {
- 		type integer
- 		# fs=48000Hz, clock accuracy=1000ppm
- 		default 0x00
- 	}
- 	type hooks
- 	slave.pcm {
- 		type hw
- 		card 0
- 		device 3
- 	}
- 	hooks.0 {
- 		type ctl_elems
- 		hook_args [
- 		{
- 			name "IEC958 Playback Default"
- 			lock true
- 			preserve true
- 			value [ $AES0 $AES1 $AES2 $AES3 ]
- 		}
- 		{
- 			name "IEC958 Playback Switch"
- 			lock true
- 			preserve true
- 			value true
- 		}
- 		]
- 	}
-  }
- pcm.!default asym_hdmi