[mythtv-users] pi2 audio issues

Tue Jul 31 00:22:30 UTC 2018

running .29 latest as of a couple of days ago (details below).     But it does not seem to matter as I have been updating for months and still have the same issues.
Theses are the issues I see in the log
2018-07-27 20:55:58.135339 I [686/938] AudioOutputBase audio/audiooutputbase.cpp:1706 (OutputAudioLoop) - AOBase: OutputAudioLoop: Play Event2018-07-27 20:56:11.150235 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun2018-07-27 20:56:16.106402 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun2018-07-27 20:56:20.685351 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun2018-07-27 20:56:21.776916 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun2018-07-27 20:56:22.451189 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun2018-07-27 20:56:23.186836 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun2018-07-27 20:56:24.599191 I [686/938] AudioOutputBase audio/audiooutputalsa.cpp:592 (WriteAudio) - ALSA: WriteAudio: buffer underrun

When I see these the recording sounds horrible and the audio is dropped.  

Any ideas on how to fix, troubleshoot these issues?  The recordings are good, because they play fine on a laptop with VLC.  
Thanks,Mike
More logs2018-07-27 20:55:37.930265 I [686/686] CoreContext audio/audiooutputalsa.cpp:140 (TryOpenDevice) - ALSA: OpenDevice default2018-07-27 20:55:37.932011 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 8000 is supported2018-07-27 20:55:37.932174 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 11025 is supported2018-07-27 20:55:37.932298 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 16000 is supported2018-07-27 20:55:37.932426 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 22050 is supported2018-07-27 20:55:37.932550 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 32000 is supported2018-07-27 20:55:37.932681 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 44100 is supported2018-07-27 20:55:37.932810 I [686/686] CoreContext audio/audiooutputsettings.cpp:80 (AddSupportedRate) - AOS: Sample rate 48000 is supported2018-07-27 20:55:37.932850 I [686/686] CoreContext audio/audiooutputsettings.cpp:135 (AddSupportedFormat) - AOS: Format signed 16 bit is supported2018-07-27 20:55:37.933020 I [686/686] CoreContext audio/audiooutputsettings.cpp:251 (AddSupportedChannels) - AOS: 1 channel(s) are supported2018-07-27 20:55:37.933159 I [686/686] CoreContext audio/audiooutputsettings.cpp:251 (AddSupportedChannels) - AOS: 2 channel(s) are supported2018-07-27 20:55:37.955233 I [686/686] CoreContext audio/audiooutputsettings.cpp:355 (GetCleaned) - AOS: may be AC3 or DTS capable2018-07-27 20:55:37.955340 I [686/686] CoreContext audio/audiooutputsettings.cpp:251 (AddSupportedChannels) - AOS: 6 channel(s) are supported2018-07-27 20:55:37.955618 N [686/686] CoreContext audioplayer.cpp:167 (ReinitAudio) - AudioPlayer: Enabling Audio2018-07-27 20:55:38.715456 I [686/686] CoreContext avformatdecoder.cpp:2081 (ScanStreams) - AFD: codec AC3 has 6 channels2018-07-27 20:55:38.716528 I [686/686] CoreContext avformatdecoder.cpp:2590 (OpenAVCodec) - AFD: Opened codec 0x3a17ae0, id(AC3) type(Audio)2018-07-27 20:55:38.725645 I [686/686] CoreContext avformatdecoder.cpp:2282 (ScanStreams) - AFD: Audio Track #1, of type (Normal) is A/V stream #1 (id=0x18b2) and has 6 channels in the English language(6647399).2018-07-27 20:55:38.725689 I [686/686] CoreContext avformatdecoder.cpp:2081 (ScanStreams) - AFD: codec AC3 has 2 channels2018-07-27 20:55:38.726711 I [686/686] CoreContext avformatdecoder.cpp:2590 (OpenAVCodec) - AFD: Opened codec 0x3837a80, id(AC3) type(Audio)2018-07-27 20:55:38.726945 I [686/686] CoreContext avformatdecoder.cpp:2282 (ScanStreams) - AFD: Audio Track #2, of type (Normal) is A/V stream #2 (id=0x18b3) and has 2 channels in the Spanish; Castilian language(7565409).2018-07-27 20:55:38.757224 D [686/686] CoreContext omxcontext.cpp:91 (IncrRef) - OMX: OMX_Init...2018-07-27 20:55:38.757624 D [686/686] CoreContext omxcontext.cpp:96 (IncrRef) - OMX: OMX_Init done2018-07-27 20:55:38.760572 D [686/686] CoreContext omxcontext.cpp:166 (OMXComponent) - OMX:7 Attached OMX.broadcom.video_decode:7 ver=0.0.0.0 spec=1.1.2.02018-07-27 20:55:38.799472 I [686/686] CoreContext avformatdecoder.cpp:2590 (OpenAVCodec) - AFD: Opened codec 0x3aabe00, id(MPEG2VIDEO) type(Video)2018-07-27 20:55:38.838979 I [686/686] CoreContext avformatdecoder.cpp:4409 (AutoSelectAudioTrack) - AFD: Trying to select audio track (w/lang)2018-07-27 20:55:38.861855 I [686/686] CoreContext avformatdecoder.cpp:4551 (AutoSelectAudioTrack) - AFD: Selected track 1: English AC3 5.1ch (A/V Stream #1)2018-07-27 20:55:38.862254 I [686/686] CoreContext avformatdecoder.cpp:5290 (SetupAudioStream) - AFD: Audio data is planar2018-07-27 20:55:38.862426 I [686/686] CoreContext avformatdecoder.cpp:5340 (SetupAudioStream) - AFD: Initializing audio parms from audio track #12018-07-27 20:55:38.862578 I [686/686] CoreContext avformatdecoder.cpp:5346 (SetupAudioStream) - AFD: Audio format changed  from id(NONE)     -1Hz -1ch -1bps     (profile 0) to id( AC3)  48000Hz  2ch 32bps     (profile 0)2018-07-27 20:55:38.862705 I [686/686] CoreContext audio/audiooutputbase.cpp:908 (KillAudio) - AOBase: Killing AudioOutputDSP2018-07-27 20:55:38.862780 I [686/686] CoreContext audio/audiooutputbase.cpp:680 (Reconfigure) - AOBase: Original codec was AC3, 32 bit floating point, 48 kHz, 2 channels2018-07-27 20:55:38.862866 I [686/686] CoreContext audio/audiooutputbase.cpp:698 (Reconfigure) - AOBase: enc(0), passthru(0), features () configured_channels(2), 2 channels supported(1) max_channels(2)2018-07-27 20:55:38.862925 I [686/686] CoreContext audio/audiooutputbase.cpp:802 (Reconfigure) - AOBase: Audio processing enabled2018-07-27 20:55:38.863025 I [686/686] CoreContext audio/audiooutputbase.cpp:823 (Reconfigure) - AOBase: Opening audio device 'default' ch 2(2) sr 48000 sf signed 16 bit reenc 02018-07-27 20:55:38.863078 I [686/686] CoreContext audio/audiooutputalsa.cpp:140 (TryOpenDevice) - ALSA: OpenDevice default2018-07-27 20:55:38.877951 I [686/686] CoreContext audio/audiooutputalsa.cpp:670 (SetParameters) - ALSA: SetParameters(format=2, channels=2, rate=48000, buffer_time=500000, period_time=4)2018-07-27 20:55:38.887148 I [686/686] CoreContext audio/audiooutputalsa.cpp:728 (SetParameters) - ALSA: Buffer size range from 256 to 327682018-07-27 20:55:38.887192 I [686/686] CoreContext audio/audiooutputalsa.cpp:731 (SetParameters) - ALSA: Period size range from 256 to 327682018-07-27 20:55:38.887692 I [686/686] CoreContext audio/audiooutputalsa.cpp:783 (SetParameters) - ALSA: Buffer time = 500000 us2018-07-27 20:55:38.888120 I [686/686] CoreContext audio/audiooutputalsa.cpp:789 (SetParameters) - ALSA: Period time = 4 periods2018-07-27 20:55:38.888972 I [686/686] CoreContext audio/audiooutputalsa.cpp:798 (SetParameters) - ALSA: Buffer size = 24000 | Period size = 60002018-07-27 20:55:38.889234 I [686/686] CoreContext audio/audiooutputbase.cpp:840 (Reconfigure) - AOBase: Audio fragment size: 120002018-07-27 20:55:38.889314 I [686/686] CoreContext audio/audiooutputbase.cpp:864 (Reconfigure) - AOBase: Audio Stretch Factor: 12018-07-27 20:55:38.889502 I [686/686] CoreContext audio/audiooutputbase.cpp:877 (Reconfigure) - AOBase: Ending Reconfigure()2018-07-27 20:55:38.923000 I [686/924] AudioOutputBase audio/audiooutputbase.cpp:1867 (run) - AOBase: kickoffOutputAudioLoop: pid = 6862018-07-27 20:55:38.923114 I [686/924] AudioOutputBase audio/audiooutputbase.cpp:1706 (OutputAudioLoop) - AOBase: OutputAudioLoop: Play Event

MythTV Version : v29.1-14-g56030f3f2aMythTV Branch : fixes/29Network Protocol : 91Library API : 29.20180316-1QT Version : 5.7.1Options compiled in: linux profile use_hidesyms using_alsa using_oss using_pulse using_pulseoutput using_backend using_bindings_perl using_bindings_python using_bindings_php using_dvb using_firewire using_frontend using_hdhomerun using_vbox using_ceton using_hdpvr using_ivtv using_joystick_menu using_libcec using_libcrypto using_libdns_sd using_libfftw3 using_libxml2 using_lirc using_mheg using_opengl using_qtwebkit using_qtscript using_qtdbus using_taglib using_v4l2 using_x11 using_xrandr using_xv using_profiletype using_bindings_perl using_bindings_python using_bindings_php using_freetype2 using_mythtranscode using_opengl using_opengles using_openmax using_ffmpeg_threads using_mheg using_libass using_libxml2

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