<br><br><div><span class="gmail_quote">On 10/24/07, <b class="gmail_sendername">Craig Lovold</b> <<a href="mailto:craig@lovolds.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">craig@lovolds.com
</a>> wrote:</span><blockquote class="gmail_quote" style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; margin-left: 0.80ex; border-left-color: #cccccc; border-left-width: 1px; border-left-style: solid; padding-left: 1ex">
OK, I gave up over a year ago but I think I am ready to try again....<br><br>I want Dolby Digital output from MythVideo/Xine. Is that too much to<br>ask for? I fought with it for days a year ago and eventually gave up.
<br><br>I'll buy whatever card it takes to make it work. Does anyone have a<br>configuration that will make it work?<br><br>Right now I have a Chaintech AV-710 audio card and I have managed to get<br>digital audio output, but cannot get it to work with anything but
<br>2-speaker output. Things I have tried have led to either no sound<br>output or an error message saying that the device is not ready/available.<br><br>I am currently using the latest MythBuntu release, so things should be
<br>fairly up to date.<br><br>Anyone got a prebuilt solution?<br></blockquote><div><br>... <br><br>I personally have bought a couple Turtle Beach Audio Advantage Micros...<br><br><a href="http://www.turtlebeach.com/products/micro/home.aspx" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
http://www.turtlebeach.com/products/micro/home.aspx</a><br><br>Not too expensive at around $30.<br><br>It's a usb dongle with a connection for an optical digital cable to feed to your receiver or pre-amp. Couldn't be simpler. Under alsamixer, it's just got one control (pcm).
<br><br>In mythtv, set ac3 and dts passthrough. I think my soundcard's just set to ALSA:default. That works for OTA HD programs and other videos played with mythtv's default viewer. I can't remember the exact setting for xine (that's what I normally use to play videos), and I'm away on business, but I can let you know when I get back in front of my tvs.
<br><br>I use software alsa mixing with this .asoundrc file I stick in mythtv's home directory (stolen from the ALSA wiki):<br> <br>pcm.ossmix {<br> type dmix<br> ipc_key 1024 # must be unique!<br># ipc_key_add_uid false # let multiple users share
<br># ipc_perm 0666 # IPC permissions for multi-user sharing (octal, default 0600)<br> slave {<br> pcm "hw:0,0" # you cannot use a "plug" device here, darn.<br> period_time 0
<br> period_size 1024 # must be power of 2<br> buffer_size 8192 # dito. It<br> #format "S32_LE"<br> #periods 128 # dito.<br> #rate 8000 # with rate 8000 you *will* hear,<br> # if ossmix is used :)
<br> }<br> # bindings are cool. This says, that only the first<br> # two channels are to be used by dmix, which is<br> # enough for (most) oss apps and also lets<br> # multichannel chios work much faster:<br>
bindings {<br> 0 0 # from 0 => to 0<br> 1 1 # from 1 => to 1<br> }<br>}<br>pcm.dsp0 {<br> type plug<br> slave.pcm "ossmix" # use our new PCM here<br>}<br># mixer0 like above<br>ctl.mixer0
{<br> type hw<br> card 2<br>}<br><br># You may want to make your new ossmix the default for alsa.<br># If your alsa programs are complaining that they can't open<br># your sound devices, try uncommenting this next line
<br>#pcm.default pcm.dsp0<br><br>pcm.!default {<br> type plug<br> slave.pcm "ossmix"<br>}<br><br><br></div><br><blockquote class="gmail_quote" style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; margin-left: 0.80ex; border-left-color: #cccccc; border-left-width: 1px; border-left-style: solid; padding-left: 1ex">
Thanks a ton,<br><br>Craig L.<br></blockquote></div><br>