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Sound Troubleshooting - MythTV Official Wiki
https://www.mythtv.org/wiki/Sound_Troubleshooting
No sound from mythtv, but mplayer can play sound. Seen on Fedora 12 to 13 + MythTV 0.22 to 0.23, with analog sound: Fixed by setting mixer control to Master and entering ALSA:front as audio device. ALSA:front was not in the list of audio devices so it had to be entered manually with the onscreen keyboard. Mixer control is PCM by default. ALSA device
Configuring Digital Sound - MythTV Official Wiki
https://www.mythtv.org/wiki/Configuring_Digital_Sound
Digital sound is the preferred method to get audio from a MythTV installation for two reasons 1. We want to have the audio decoding done outside of the computer for greater sound quality. 2. We want to play DVD with full surround sound using DTS or Dolby Digital. You need to be aware that ALSA by default will upsample all of your audio to 48 kHz.
#6569 (ac3 level is low for 5.1 source) – MythTV
https://code.mythtv.org/trac/ticket/6569
ac3 level is low for 5.1 source Description the ac3 gain is low for 5.1 sourced audio streams but is ok for 2.0. we have channels which have 5.1 material with 2.0 ads between. audio level changes are annoying. patch attached to fix this. Attachments (2) mythtv_ac3gainfix.patch ( 812 bytes) - added by Mark Spieth 13 years ago .
Digital Audio Tutorial - MythTV Official Wiki
https://www.mythtv.org/wiki/Digital_Audio_Tutorial
If you hear digital noise or what sounds like static from an old sci-fi movie, it is the digital spdif data stream being sent to the analog part of your sound card. Check your output aplay -l output again for the digital device. MythTV 0.23 …
Troubleshooting:Prebuffering pause - MythTV Official Wiki
https://www.mythtv.org/wiki/Troubleshooting:Prebuffering_pause
Fix. 1)Enable the setting, "Delete files slowly," in mythtv-setup under General in the "Miscellaneous Settings" section. Alternatively, switch to using a filesystem which does not journal the deletion of large files in unnecessary detail (like XFS or JFS). 2)Add a drive to handle the recordings alone.
MythTV/Install/Troubleshooting - Community Help Wiki
https://help.ubuntu.com/community/MythTV/Install/Troubleshooting
To solve the problem, open mythfrondend, go to Utilities/Setup -> Setup -> TV Settings -> Recording Profiles -> Software Encoders -> Live TV and change the audio sample rate to 48 kHz. Test effect. Then do the same to settings in Default, High Quality, Low Quality. This solution is based on the MythTV Wiki. Unable to use Mythweb or phpmyadmin
Raspberry Pi - MythTV Official Wiki
https://www.mythtv.org/wiki/Raspberry_Pi
disable_audio_dither=1. To enable the MythTV volume control, set "Mixer Device" to "ALSA:default" and mixer controls to "PCM". Low volume from 3.5mm jack. If you are using an analog TV or one without HDMI audio, you can use the analog audio from the 3.5mm jack on the Raspberry Pi. On digital channels this may give a low sound volume through a TV set.
Choosing Frontend Hardware - MythTV Official Wiki
https://www.mythtv.org/wiki/Choosing_Frontend_Hardware
There are three primary routes for audio output in MythTV: analog, digital SPDIF, or digital HDMI. For analog audio, there is perceivable benefit to using a discrete audio card, as they offer much better isolation than onboard sound codecs, and will result in reduced noise. For digital audio, onboard versus discrete will make no difference.
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