[mythtv-users] Best audio crard for AC3/DTS over SPIDF
Support [ Ian Ward ]
support at cyberpro.com.au
Thu Oct 20 19:22:18 EDT 2005
Greg Whalin wrote:
> I currently have a Shuttle w/ A7N8X-Delux (nforce2) mboard and a
> direct coax digital connection over spidf to my receiver (Sony
> STR-DE995). PCM 2 channel works great. However, I am unable to use
> AC3 or DTS passthrough in myth, xine, or mplayer. When I try, I get a
> "Decode Error" on my receiver and no audio.
Hi there, I used the digital sound howto and searched a few lists. My
motherboard is nforce2 , Sony AV AMP, all sound combos work perfectly.
Try my .asoundrc and .xine/config files attached. In mythtv my sound
device is set to "ALSA:digital"
I am running FC3 and ATrpms mythtv-suite as per Jarod's howto
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#
# xine config file
#
.version:2
# Entries which are still set to their default values are commented out.
# Remove the '#' at the beginning of the line, if you want to change them.
# Enable deinterlacing by default
# bool, default: 0
#gui.deinterlace_by_default:0
# Configuration experience level
# { Beginner Advanced Expert Master of the known universe }, default: 0
#gui.experience_level:Beginner
# Enable OSD support
# bool, default: 1
#gui.osd_enabled:1
# Dismiss OSD time (s)
# numeric, default: 3
gui.osd_timeout:10
# Ask user for playback with unsupported codec
# bool, default: 0
#gui.play_anyway:0
# Automatically reload old playlist
# bool, default: 0
#gui.playlist_auto_reload:0
# Audio visualization plugin
# { oscope fftscope fftgraph goom }, default: 0
#gui.post_audio_plugin:oscope
# gui skin theme
# { xinetic }, default: 0
#gui.skin:xinetic
# Change xine's behavior for unexperienced user
# bool, default: 1
#gui.smart_mode:1
# Snapshot location
# string, default: /home/mythtv
#gui.snapshotdir:/home/mythtv
# Subtitle autoloading
# bool, default: 1
#gui.subtitle_autoload:1
# Visual animation style
# { None Post Plugin Stream Animation }, default: 1
#gui.visual_anim:Post Plugin
# Windows stacking (more)
# bool, default: 0
#gui.always_layer_above:0
# Audio mixer control method
# { Sound card Software }, default: 0
#gui.audio_mixer_method:Sound card
# Visiblility behavior of panel
# bool, default: 0
#gui.auto_panel_visibility:0
# Visibility behavior of output window
# bool, default: 0
#gui.auto_video_output_visibility:0
# Deinterlace plugin.
# string, default: tvtime:method=LinearBlend,cheap_mode=1,pulldown=0,use_progressive_frame_flag=1
#gui.deinterlace_plugin:tvtime:method=LinearBlend,cheap_mode=1,pulldown=0,use_progressive_frame_flag=1
# Event sender behavior
# bool, default: 1
#gui.eventer_sticky:1
# Windows stacking
# bool, default: 0
#gui.layer_above:0
# Use unscaled OSD
# bool, default: 1
#gui.osd_use_unscaled:1
# Screensaver wakeup
# numeric, default: 10
#gui.screensaver_timeout:10
# Menu shortcut style
# { Windows style Emacs style }, default: 0
#gui.shortcut_style:Windows style
# Stream information
# bool, default: 0
#gui.sinfo_auto_update:0
# Skin Server Url
# string, default: http://xine.sourceforge.net/skins/skins.slx
#gui.skin_server_url:http://xine.sourceforge.net/skins/skins.slx
# Chapter hopping
# bool, default: 1
#gui.skip_by_chapter:1
# New stream sizes resize output window
# bool, default: 1
#gui.stream_resize_window:1
# tips timeout (ms)
# numeric, default: 500
#gui.tips_timeout:500
# gui tips visibility
# bool, default: 1
#gui.tips_visible:1
# Name of video display
# string, default:
#gui.video_display:
# Synchronized X protocol (debug)
# bool, default: 0
#gui.xsynchronize:0
# Double size for small streams (require stream_resize_window)
# bool, default: 0
#gui.zoom_small_stream:0
# Logo mrl
# string, default: file:/usr/share/xine/skins/xine-ui_logo.mpv
#gui.logo_mrl:file:/usr/share/xine/skins/xine-ui_logo.mpv
# use XVidModeExtension when switching to fullscreen
# bool, default: 0
#gui.use_xvidext:0
# Amplification level
# [0..200], default: 100
#gui.amp_level:100
# gui panel visibility
# bool, default: 1
gui.panel_visible:0
# numeric, default: 200
#gui.panel_x:200
# numeric, default: 100
#gui.panel_y:100
# brightness value
# [0..65535], default: -1
#gui.vo_brightness:-1
# contrast value
# [0..65535], default: -1
#gui.vo_contrast:-1
# saturation value
# [0..65535], default: -1
#gui.vo_saturation:-1
# palette (foreground-border-background) to use for subtitles and OSD
# { white-black-transparent white-none-transparent white-none-translucid yellow-black-transparent }, default: 0
#ui.osd.text_palette:white-black-transparent
# notify changes to the hardware mixer
# bool, default: 1
#audio.alsa_hw_mixer:1
# audio driver to use
# { auto null alsa oss arts esd file none }, default: 0
audio.driver:alsa
# use A/52 dynamic range compression
# bool, default: 0
#audio.a52.dynamic_range:0
# downmix audio to 2 channel surround stereo
# bool, default: 0
#audio.a52.surround_downmix:0
# A/52 volume
# [0..200], default: 100
#audio.a52.level:100
# device used for mono output
# string, default: default
#audio.device.alsa_default_device:default
# device used for stereo output
# string, default: plug:front:default
audio.device.alsa_front_device:default
# alsa mixer device
# string, default: PCM
#audio.device.alsa_mixer_name:PCM
# sound card can do mmap
# bool, default: 0
audio.device.alsa_mmap_enable:1
# device used for 5.1-channel output
# string, default: iec958:AES0=0x6,AES1=0x82,AES2=0x0,AES3=0x2
#audio.device.alsa_passthrough_device:iec958:AES0=0x6,AES1=0x82,AES2=0x0,AES3=0x2
# device used for 4-channel output
# string, default: plug:surround40:0
#audio.device.alsa_surround40_device:plug:surround40:0
# device used for 5.1-channel output
# string, default: plug:surround51:0
#audio.device.alsa_surround51_device:plug:surround51:0
# speaker arrangement
# { Mono 1.0 Stereo 2.0 Headphones 2.0 Stereo 2.1 Surround 3.0 Surround 4.0 Surround 4.1 Surround 5.0 Surround 5.1 Surround 6.0 Surround 6.1 Surround 7.1 Pass Through }, default: 1
audio.output.speaker_arrangement:Pass Through
# offset for digital passthrough
# numeric, default: 0
#audio.synchronization.passthrough_offset:0
# method to sync audio and video
# { metronom feedback resample }, default: 0
#audio.synchronization.av_sync_method:metronom feedback
# always resample to this rate (0 to disable)
# numeric, default: 0
#audio.synchronization.force_rate:0
# enable resampling
# { auto off on }, default: 0
#audio.synchronization.resample_mode:auto
# startup audio volume
# [0..100], default: 50
#audio.volume.mixer_volume:50
# restore volume level at startup
# bool, default: 0
#audio.volume.remember_volume:0
# video driver to use
# { auto dxr3 aadxr3 xv opengl aa xshm caca xxmc none sdl vidix vidixfb fb xvmc }, default: 0
#video.driver:auto
# pitch alignment workaround
# bool, default: 0
#video.device.xv_pitch_alignment:0
# autopaint colour key
# bool, default: 0
#video.device.xv_autopaint_colorkey:0
# video overlay colour key
# [0..16777215], default: 66048
#video.device.xv_colorkey:66048
# enable double buffering
# bool, default: 1
#video.device.xv_double_buffer:1
# disable exact alpha blending of overlays
# bool, default: 0
#video.output.disable_exact_alphablend:0
# disable all video scaling
# bool, default: 0
#video.output.disable_scaling:0
# horizontal image position in the output window
# [0..100], default: 50
#video.output.horizontal_position:50
# vertical image position in the output window
# [0..100], default: 50
#video.output.vertical_position:50
# deinterlace method (deprecated)
# { none bob weave greedy onefield onefield_xv linearblend }, default: 4
#video.output.xv_deinterlace_method:onefield
# MPEG-4 postprocessing quality
# [0..6], default: 3
#video.processing.ffmpeg_pp_quality:3
# DXR3 device number
# numeric, default: 0
#dxr3.device_number:0
# swap odd and even lines
# bool, default: 0
#dxr3.encoding.swap_fields:0
# add black bars to correct aspect ratio
# bool, default: 1
#dxr3.encoding.add_bars:1
# use smooth play mode for mpeg encoder playback
# bool, default: 1
#dxr3.encoding.alt_play_mode:1
# device used for CD audio
# string, default: /dev/cdrom
#media.audio_cd.device:/dev/cdrom
# slow down disc drive to this speed factor
# numeric, default: 4
#media.audio_cd.drive_slowdown:4
# query CDDB
# bool, default: 1
#media.audio_cd.use_cddb:1
# CDDB cache directory
# string, default: /home/mythtv/.xine/cddbcache
#media.audio_cd.cddb_cachedir:/home/mythtv/.xine/cddbcache
# CDDB server port
# numeric, default: 8880
#media.audio_cd.cddb_port:8880
# CDDB server name
# string, default: freedb.freedb.org
#media.audio_cd.cddb_server:freedb.freedb.org
# directory for saving streams
# string, default:
#media.capture.save_dir:
# Number of dvb card to use.
# numeric, default: 0
#media.dvb.adapter:0
# Remember last DVB channel watched
# bool, default: 1
#media.dvb.remember_channel:1
# Last DVB channel viewed
# numeric, default: -1
#media.dvb.last_channel:-1
# default language for DVD playback
# string, default: en
#media.dvd.language:en
# region the DVD player claims to be in (1 to 8)
# numeric, default: 1
#media.dvd.region:1
# device used for DVD playback
# string, default: /dev/dvd
#media.dvd.device:/dev/dvd
# raw device set up for DVD access
# string, default: /dev/rdvd
#media.dvd.raw_device:/dev/rdvd
# read-ahead caching
# bool, default: 1
#media.dvd.readahead:1
# CSS decryption method
# { key disc title }, default: 0
#media.dvd.css_decryption_method:key
# unit for seeking
# { seek in program chain seek in program }, default: 0
#media.dvd.seek_behaviour:seek in program chain
# unit for the skip action
# { skip program skip part skip title }, default: 0
#media.dvd.skip_behaviour:skip program
# path to the title key cache
# string, default: /home/mythtv/.dvdcss/
#media.dvd.css_cache_path:/home/mythtv/.dvdcss/
# file browsing start location
# string, default: /home/mythtv
#media.files.origin_path:/home/mythtv
# list hidden files
# bool, default: 0
#media.files.show_hidden_files:0
# network bandwidth
# { 14.4 Kbps (Modem) 19.2 Kbps (Modem) 28.8 Kbps (Modem) 33.6 Kbps (Modem) 34.4 Kbps (Modem) 57.6 Kbps (Modem) 115.2 Kbps (ISDN) 262.2 Kbps (Cable/DSL) 393.2 Kbps (Cable/DSL) 524.3 Kbps (Cable/DSL) 1.5 Mbps (T1) 10.5 Mbps (LAN) }, default: 10
#media.network.bandwidth:1.5 Mbps (T1)
# Domains for which to ignore the HTTP proxy
# string, default:
#media.network.http_no_proxy:
# HTTP proxy host
# string, default:
#media.network.http_proxy_host:
# HTTP proxy password
# string, default:
#media.network.http_proxy_password:
# HTTP proxy port
# numeric, default: 80
#media.network.http_proxy_port:80
# HTTP proxy username
# string, default:
#media.network.http_proxy_user:
# MMS protocol
# { auto TCP HTTP }, default: 0
#media.network.mms_protocol:auto
# automatically advance VCD track/entry
# bool, default: 1
#media.vcd.autoadvance:1
# VCD default type to use on autoplay
# { track entry segment playlist }, default: 3
#media.vcd.autoplay:playlist
# VCD position slider range
# { auto track entry }, default: 0
#media.vcd.length_reporting:auto
# show 'rejected' VCD LIDs
# bool, default: 0
#media.vcd.show_rejected:0
# VCD format string for stream comment field
# string, default: %P - Track %T
#media.vcd.comment_format:%P - Track %T
# VCD debug flag mask
# numeric, default: 0
#media.vcd.debug:0
# device used for VCD playback
# string, default: /dev/cdrom
#media.vcd.device:/dev/cdrom
# VCD format string for display banner
# string, default: %F - %I %N%L%S, disk %c of %C - %v %A
#media.vcd.title_format:%F - %I %N%L%S, disk %c of %C - %v %A
# v4l radio device
# string, default: /dev/v4l/radio0
#media.video4linux.radio_device:/dev/v4l/radio0
# v4l video device
# string, default: /dev/v4l/video0
#media.video4linux.video_device:/dev/v4l/video0
# device used for WinTV-PVR 250/350 (pvr plugin)
# string, default: /dev/video0
#media.wintv_pvr.device:/dev/video0
# path to RealPlayer codecs
# string, default:
#decoder.external.real_codecs_path:
# path to Win32 codecs
# string, default: /usr/lib/win32
#decoder.external.win32_codecs_path:/usr/lib/win32
# subtitle size
# { tiny small normal large very large huge }, default: 1
#subtitles.separate.subtitle_size:small
# subtitle vertical offset
# numeric, default: 0
#subtitles.separate.vertical_offset:0
# font for subtitles
# string, default: sans
#subtitles.separate.font:sans
# encoding of the subtitles
# string, default: iso-8859-1
#subtitles.separate.src_encoding:iso-8859-1
# use unscaled OSD if possible
# bool, default: 1
#subtitles.separate.use_unscaled_osd:1
# frames per second to generate
# numeric, default: 10
#effects.goom.fps:10
# goom image height
# numeric, default: 240
#effects.goom.height:240
# goom image width
# numeric, default: 320
#effects.goom.width:320
# colorspace conversion method
# { Fast but not photorealistic Slow but looks better }, default: 0
#effects.goom.csc_method:Fast but not photorealistic
# number of audio buffers
# numeric, default: 230
#engine.buffers.audio_num_buffers:230
# number of video buffers
# numeric, default: 500
#engine.buffers.video_num_buffers:500
# priority for a/52 decoder
# numeric, default: 0
#engine.decoder_priorities.a/52:0
# priority for bitplane decoder
# numeric, default: 0
#engine.decoder_priorities.bitplane:0
# priority for dts decoder
# numeric, default: 0
#engine.decoder_priorities.dts:0
# priority for dvaudio decoder
# numeric, default: 0
#engine.decoder_priorities.dvaudio:0
# priority for dxr3-mpeg2 decoder
# numeric, default: 0
#engine.decoder_priorities.dxr3-mpeg2:0
# priority for dxr3-spudec decoder
# numeric, default: 0
#engine.decoder_priorities.dxr3-spudec:0
# priority for faad decoder
# numeric, default: 0
#engine.decoder_priorities.faad:0
# priority for ffmpeg-wmv8 decoder
# numeric, default: 0
#engine.decoder_priorities.ffmpeg-wmv8:0
# priority for ffmpegaudio decoder
# numeric, default: 0
#engine.decoder_priorities.ffmpegaudio:0
# priority for ffmpegvideo decoder
# numeric, default: 0
#engine.decoder_priorities.ffmpegvideo:0
# priority for flacdec decoder
# numeric, default: 0
#engine.decoder_priorities.flacdec:0
# priority for gsm610 decoder
# numeric, default: 0
#engine.decoder_priorities.gsm610:0
# priority for image decoder
# numeric, default: 0
#engine.decoder_priorities.image:0
# priority for mad decoder
# numeric, default: 0
#engine.decoder_priorities.mad:0
# priority for mpc decoder
# numeric, default: 0
#engine.decoder_priorities.mpc:0
# priority for mpeg2 decoder
# numeric, default: 0
#engine.decoder_priorities.mpeg2:0
# priority for nsf decoder
# numeric, default: 0
#engine.decoder_priorities.nsf:0
# priority for pcm decoder
# numeric, default: 0
#engine.decoder_priorities.pcm:0
# priority for qta decoder
# numeric, default: 0
#engine.decoder_priorities.qta:0
# priority for qtv decoder
# numeric, default: 0
#engine.decoder_priorities.qtv:0
# priority for real decoder
# numeric, default: 0
#engine.decoder_priorities.real:0
# priority for realadec decoder
# numeric, default: 0
#engine.decoder_priorities.realadec:0
# priority for rgb decoder
# numeric, default: 0
#engine.decoder_priorities.rgb:0
# priority for speex decoder
# numeric, default: 0
#engine.decoder_priorities.speex:0
# priority for spucc decoder
# numeric, default: 0
#engine.decoder_priorities.spucc:0
# priority for spucmml decoder
# numeric, default: 0
#engine.decoder_priorities.spucmml:0
# priority for spudec decoder
# numeric, default: 0
#engine.decoder_priorities.spudec:0
# priority for spudvb decoder
# numeric, default: 0
#engine.decoder_priorities.spudvb:0
# priority for sputext decoder
# numeric, default: 0
#engine.decoder_priorities.sputext:0
# priority for theora decoder
# numeric, default: 0
#engine.decoder_priorities.theora:0
# priority for vorbis decoder
# numeric, default: 0
#engine.decoder_priorities.vorbis:0
# priority for win32a decoder
# numeric, default: 0
#engine.decoder_priorities.win32a:0
# priority for win32v decoder
# numeric, default: 0
#engine.decoder_priorities.win32v:0
# priority for yuv decoder
# numeric, default: 0
#engine.decoder_priorities.yuv:0
# media format detection strategy
# { default reverse content extension }, default: 0
#engine.demux.strategy:default
# memcopy method used by xine
# { probe libc kernel mmx mmxext sse }, default: 0
engine.performance.memcpy_method:sse
# percentage of discarded frames to tolerate
# numeric, default: 10
#engine.performance.warn_discarded_threshold:10
# percentage of skipped frames to tolerate
# numeric, default: 10
#engine.performance.warn_skipped_threshold:10
# allow implicit changes to the configuration (e.g. by MRL)
# bool, default: 0
#misc.implicit_config:0
-------------- next part --------------
# Override the default output used by ALSA.
# If you do not override the default, your default
# device is identical to the (unmixed) analog device
# shown below. If you prefer mixed and/or digital
# output, uncomment the appropriate four lines below
# (only one slave.pcm line).
pcm.!default {
type plug
## Uncomment the following to use mixed analog by default
# slave.pcm "dmix-analog"
## Uncomment the following to use unmixed digital by default
slave.pcm "digital-hw"
## Uncomment the following to use mixed digital by default
# slave.pcm "dmix-digital"
}
# Alias for analog output on the nForce2/4 (hw:0,0)
# - This is identical to the device named "default"--which
# always exists and refers to hw:0,0 (unless overridden)
# - Therefore, we can specify "hw:0,0", "default", or "analog"
# to access analog output on the nForce2/4
pcm.analog {
type plug
slave.pcm "analog-hw"
}
# Control device (mixer, etc.) for the nForce2 card
ctl.analog {
type hw
card 0
}
# Alias for (rate-converted) mixed analog output on the
# nForce2 (hw:0,0)
# - This will accept audio input--regardless of rate--and
# convert to the rate required for the dmix plugin
# (in this case 48000Hz)
pcm.mixed-analog {
type plug
slave.pcm "dmix-analog"
}
# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-analog {
type hw
card 0
}
# Alias for (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
# - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.digital {
type plug
slave.pcm "digital-hw"
}
# Control device (mixer, etc.) for the nForce2 card
ctl.digital {
type hw
card 0
}
# Alias for mixed (rate-converted) digital (S/PDIF) output on the
# nForce2/4 (hw:0,2)
# - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.mixed-digital {
type plug
slave.pcm "dmix-digital"
}
# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-digital {
type hw
card 0
}
# The following devices are not useful by themselves. They
# require specific rates, channels, and formats. Therefore,
# you probably do not want to use them directly. Instead use
# of of the devices defined above.
# Alias for analog output on the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.analog-hw {
type hw
card 0
# The default value for device is 0, so no need to specify
}
# Control device (mixer, etc.) for the nForce2/4 card
ctl.analog-hw {
type hw
card 0
}
# Alias for digital (S/PDIF) output on the nForce2/4 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.digital-hw {
type hw
card 0
device 2
}
# Control device (mixer, etc.) for the nForce2/4 card
ctl.digital-hw {
type hw
card 0
}
# Direct software mixing plugin for analog output on
# the nForce2/4 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-analog {
type dmix
ipc_key 1234
slave {
pcm "analog-hw"
period_time 0
period_size 1024
buffer_size 4096
rate 48000
}
}
# Control device (mixer, etc.) for the nForce2/4 card
ctl.dmix-analog {
type hw
card 0
}
# Direct software mixing plugin for digital (S/PDIF) output
# on the nForce2/4 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-digital {
type dmix
ipc_key 1235
slave {
pcm "digital-hw"
period_time 0
period_size 1024
buffer_size 4096
rate 48000
}
}
# Control device (mixer, etc.) for the nForce2/4 card
ctl.dmix-digital {
type hw
card 0
}
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