Lee Revell wrote: > On 2/3/07, Lee Revell <rlrevell@xxxxxxxxxxx> wrote: >> On 2/3/07, Josh <TwoOneSix@xxxxxxxxxxxxxxxxxx> wrote: >> > $ aplay -D spdif -t raw -f S32_LE -c2 -r48000 sample_track.ac3 >> > Playing raw data 'sample_track.ac3' : Signed 32 bit Little Endian, >> Rate >> > 48000 Hz, Stereo >> > Aborted by signal Interrupt... >> >> Sorry, no idea. Try with the 7.1 and mplayer. Maybe AC3 passthrough >> is in fact unsupported. >> > > Hmm, it should definitely work with the 7.1. Try this: > > http://alsa.opensrc.org/Ice1724 > > Lee > > > OK, so the problem is fixed and as far as I'm concerned it was my fault for not catching this issue sooner. I don't know about the M-Audio Revolution 5.1 or 7.1 issues I was having, but the reason I tried them in the first place was because my 1st option wasn't working. So, I revisited my 1st option (Turtle Beach Riviera) and, like I had posted previously on the MythTV-Users list, it worked for about 30 minutes and then mysteriously stopped working. Well, I moved on to the M-Audio card after 2 days of trying to get that card to work again... the M-Audio card caused me all kinds of grief with AC3 and I never could get it working... Here is the output from mplayer that made me finally give up on the M-Audio card (remind you I'm on Fedora Core 6 - FC6). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ========================================================================== Opening audio decoder: [liba52] AC3 decoding with liba52 Using SSE optimized IMDCT transform Using MMX optimized resampler AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000) Selected audio codec: [a52] afm: liba52 (AC3-liba52) ========================================================================== [AO_ALSA] Format s16le is not supported by hardware, trying default. [AO_ALSA] Unable to set format: Invalid argument Could not open/initialize audio device -> no sound. Audio: no sound Starting playback... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Well, after 2 more hours of messing with the Turtle Beach card and finally getting mplayer to output this: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ========================================================================== Forced audio codec: hwac3 Opening audio decoder: [hwac3] AC3/DTS pass-through S/PDIF No accelerated IMDCT transform found hwac3: switched to AC3, 192000 bps, 48000 Hz AUDIO: 48000 Hz, 2 ch, ac3, 192.0 kbit/12.50% (ratio: 24000->192000) Selected audio codec: [hwac3] afm: hwac3 (AC3 through S/PDIF) ========================================================================== AO: [alsa] 48000Hz 2ch ac3 (1 bytes per sample) Starting playback... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I knew at that point ALSA could see my card and the S/PDIF output and it was obviously outputting AC3 data to my card... so I whipped out the manual for my Sony digital receiver... it says the same thing it did the day I bought it, that it supports all mode and will auto-select the input source... so I take a quick gander at the LCD and notice that the "OPT" (Optical) light is no longer lit, it's not getting a signal (mind you the device lights up upon connection with a digital device, it doesn't even have to be pushing data, like a power cord on a computer monitor lights up a small light to let you know it's plugged in but not powered on)... any who, I yank the Matix optical cable from the setup, power down my box, yank the Riviera take them to Fry's and swap them out with BOTH new items, come home, plug them up and BAM, every thing's working exactly like it should! 5 days of wasted effort because of a hardware failure!!! I guess I learned more about ALSA, mplayer, MythTV, digital audio formats, and supported Linux hardware then I would have had it "just worked" so I can't be too upset. The lesson learned here is to never forget that when you get stuck and all else fails, go back to your A+ certification study and remember that if an issue is just plain "weird and unexplainable" look at the hardware. Thanks Lee for trying to help and I'm glad at least someone made an effort to help me. As for the Revolution 7.1 ($99) I couldn't get it to work with Dolby Digital 5.1, but the Riviera ($34) works with everything I have, mp3, ac3, dts, SPDIF... I'm just glad this is over and everything is working. -- Josh ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
