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5.1 Surround nvidia nForce 6150 [Solved] http://forums.linhes.org/viewtopic.php?f=24&t=21279 |
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Author: | cullenp [ Fri Aug 13, 2010 11:02 pm ] |
Post subject: | 5.1 Surround nvidia nForce 6150 [Solved] |
I've been struggling with 5.1 digital PCM audio playback for many years. . . Finally got it to work in R6.03 with analog settings. PCM for Recordings playback settings: (to be edited) Service Menu MythTv Configuration --> Setup --> General --> Audio System Audio output device: /dev/dps0 Speaker configuration: 5.1 Upconvert stereo to 5.1 surround <check> Upmix: Fastest Digital output device: Default Dolby Digital <checked> DTS <checked> Service Menu LinHES Configuration --> Audio Settings --> Sound card driver: OSS Type: Analog Nvidia MCP51(dsp0) xine <checked> mplayer <checked> mythmusic <checked> mythfrontend <checked> Here is the OSS info output: Code: [root@MythTVboxen mythtv]# ossinfo Version info: OSS 4.1 (b 1051/200902180218) (0x00040100) GPL Platform: Linux/i686 2.6.28-LinHES #1 SMP PREEMPT Sun Nov 1 06:47:02 UTC 2009 (MythTVboxen) Number of audio devices: 2 Number of audio engines: 7 Number of mixer devices: 1 Device objects 0: osscore0 OSS core services 1: oss_ich0 Nvidia MCP51 interrupts=934962 (1214967) 2: oss_usb0 USB audio core services Mixer devices 0: ICH AC97 Mixer (ALC850) (Mixer 0 of device object 1) Audio devices Nvidia MCP51 /dev/oss/oss_ich0/pcm0 (device index 0) Nvidia MCP51 S/PDIF out /dev/oss/oss_ich0/spdout (device index 1) OSSMIX output: Code: [root@MythTVboxen mythtv]# ossmix | grep -i vmix vmix0-enable ON|OFF (currently ON) vmix0-rate <decimal value> (currently 48000) (Read-only) vmix0-channels <Stereo|Multich> (currently Stereo) vmix0-src <Fast|Low|Medium|High|High+|Production|OFF> (currently Fast) vmix0-outvol <monovol> (currently 25.0 dB) vmix0-invol <monovol> (currently 25.0 dB) vmix0.pcm1 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) ("mplayer") vmix0.pcm2 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm3 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm4 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) Still having issues with mplayer playback added -afm hwac3 to the default player to try and get 5.1 playback but ended up not being able to play and this error in mythfrontend.log. Code: Playing /myth/video/RATATOUILLE.m4v.
libavformat file format detected. [lavf] Video stream found, -vid 0 [lavf] Audio stream found, -aid 1 [lavf] Subtitle stream found, -sid 0 VIDEO: [avc1] 720x360 24bpp 23.976 fps 0.0 kbps ( 0.0 kbyte/s) Xlib: extension "Generic Event Extension" missing on display ":0.0". Xlib: extension "Generic Event Extension" missing on display ":0.0". Xlib: extension "Generic Event Extension" missing on display ":0.0". ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264) ========================================================================== ========================================================================== Trying to force audio codec driver family hwac3... Opening audio decoder: [hwac3] AC3/DTS pass-through S/PDIF No accelerated IMDCT transform found hwac3: switched to AC3, 448000 bps, 48000 Hz AUDIO: 48000 Hz, 2 ch, ac3, 448.0 kbit/29.17% (ratio: 56000->192000) Selected audio codec: [hwac3] afm: hwac3 (AC3 through S/PDIF) ========================================================================== [AO OSS] Can't set audio device /dev/dsp to ac3 output, trying s16le... AO: [oss] 48000Hz 2ch s16le (2 bytes per sample) [format] Sample format big-endian AC3 not yet supported [libaf] Reinitialization did not work, audio filter 'format' returned error code -2 Couldn't find matching filter/ao format! Starting playback... MPlayer interrupted by signal 11 in module: decode_audio - MPlayer crashed by bad usage of CPU/FPU/RAM. Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and disassembly. Details in DOCS/HTML/en/bugreports_what.html#bugreports_crash. - MPlayer crashed. This shouldn't happen. It can be a bug in the MPlayer code _or_ in your drivers _or_ in your gcc version. If you think it's MPlayer's fault, please read DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and won't help unless you provide this information when reporting a possible bug. |
Author: | cullenp [ Thu Nov 08, 2012 4:06 pm ] |
Post subject: | Re: 5.1 Surround nvidia 6150 [Solved] |
<<Updated for use with LinHES 7.4>> For some reason, with the nForce chipset, the analog settings actually produce digital output. Don't ask me to explain it. I am using an RCA Coax cable attached to the SPDIF pins on the Motherboard I am using OSS. Make sure to turn off vmix and enable Multichannel Code: # ossmix vmix0-channels Multich # ossmix vmix0-enable OFF PCM for Recordings playback settings: Service Menu MythTv Configuration --> Setup --> General --> Audio System Audio output device: /dev/dps Digital Audio Capabilities Ø Dobly Digital Ø DTS O E-AC-3 O TrueHD O DTS-HD Speaker configuration: Stereo Service Menu LinHES Configuration --> Audio Settings --> Sound card driver: OSS Type: Analog Nvidia MCP51(dsp0) Here is the OSS info output: Code: [root@MythTVboxen mythtv]# ossinfo Version info: OSS 4.2 (b 2006/201205132036) (0x00040100) GPL Platform: Linux/i686 2.6.39-LinHES #1 SMP PREEMPT Fri Mar 2 02:39:34 UTC 2012 (MythTVboxen) Number of audio devices: 2 Number of audio engines: 7 Number of MIDI devices: 0 Number of mixer devices: 1 Device objects 0: osscore0 OSS core services 1: oss_ich0 Nvidia MCP51 interrupts=754829 (20477146) 2: oss_usb0 USB audio core services MIDI devices (/dev/midi*) Mixer devices 0: ICH AC97 Mixer (ALC850) (Mixer 0 of device object 1) Audio devices Nvidia MCP51 /dev/oss/oss_ich0/pcm0 (device index 0) Nvidia MCP51 S/PDIF out /dev/oss/oss_ich0/spdout (device index 1) Nodes /dev/dsp -> /dev/oss/oss_ich0/pcm0 /dev/dsp_in -> /dev/oss/oss_ich0/pcm0 /dev/dsp_out -> /dev/oss/oss_ich0/pcm0 /dev/dsp_ac3 -> /dev/oss/oss_ich0/pcm0 /dev/dsp_mmap -> /dev/oss/oss_ich0/pcm0 /dev/dsp_multich -> /dev/oss/oss_ich0/pcm0 OSSMIX output: Code: [root@MythTVboxen mythtv]# ossmix | grep -i vmix vmix0-enable ON|OFF (currently OFF) vmix0-rate <decimal value> (currently 48000) (Read-only) vmix0-channels <Stereo|Multich> (currently Stereo) vmix0-src <Fast|High|OFF> (currently OFF) vmix0-outvol <monovol> (currently 25.0 dB) vmix0-invol <monovol> (currently 24.7 dB) vmix0.pcm1 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm2 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm3 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) vmix0.pcm4 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) I need to add mplayer playback settings . . . |
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