From 647325532ba6562c94b8d765e2619210a75f9fbb Mon Sep 17 00:00:00 2001 From: Stein Magnus Jodal Date: Sat, 11 May 2013 18:40:08 +0200 Subject: [PATCH] docs: Review Raspi sound quality howto --- docs/installation/raspberrypi.rst | 45 +++++++++++++++---------------- 1 file changed, 22 insertions(+), 23 deletions(-) diff --git a/docs/installation/raspberrypi.rst b/docs/installation/raspberrypi.rst index 084dc977..acb37b36 100644 --- a/docs/installation/raspberrypi.rst +++ b/docs/installation/raspberrypi.rst @@ -79,12 +79,12 @@ As of about April 2013 the following steps should resolve any audio issues for HDMI and analog without the use of an external USB sound card. -#. Ensure you system is up to date, for debian based systems run:: +#. Ensure your system is up to date. On Debian based systems run:: sudo apt-get update sudo apt-get full-upgrade -#. Ensure you have a new enough firmware, on debian based systems +#. Ensure you have a new enough firmware. On Debian based systems `rpi-update `_ can be used. @@ -100,35 +100,34 @@ card. card 0 } - Note that if you have an ``asoundrc`` it will overide - any global settings. + Note that if you have an ``~-/.asoundrc`` it will overide any global + settings from ``/etc/asound.conf``. #. Update your ``~/.config/mopidy/mopidy.conf`` to contain:: [audio] output = alsasink - This is to tell GStreamer not to pick Jack which it seems to like - picking on RaspberryPis for some reason. + This is to tell GStreamer not to pick Jack which it seems to like picking on + Raspberry Pis for some reason. +Following these steps you should be able to get crackle free sound on either +HDMI or analog. Note that you might need to ensure that PulseAudio is no longer +running to get this working nicely. -Following these steps you should be able to get crackle free sound on -either HDMI or analog. Note that you might need to ensure that pulse -is no longer running to get this working nicely. +This recipe has been confirmed as working by a number of users on our issue +tracker and IRC. As a reference, the following versions where used for testing +this, however all newer and some older version are likely to work as we have +not determined the exact revision that fixed this:: -This recipe has been confirmed as working by a number of users on our -bug tracker and irc. As a reference, the following versions where used -for testing this, however all newer and some older version are likely -to work as we have not determined the exact revision that fixed this:: + $ uname -a + Linux raspberrypi 3.6.11+ #408 PREEMPT Wed Apr 10 20:33:39 BST 2013 armv6l GNU/Linux - $ uname -a - Linux raspberrypi 3.6.11+ #408 PREEMPT Wed Apr 10 20:33:39 BST 2013 armv6l GNU/Linux + $ /opt/vc/bin/vcgencmd version + Apr 25 2013 01:07:36 + Copyright (c) 2012 Broadcom + version 386589 (release) - $ /opt/vc/bin/vcgencmd version - Apr 25 2013 01:07:36 - Copyright (c) 2012 Broadcom - version 386589 (release) - -The only remaining known issues is a slight gap in playback at track -changes this is likely due to gapless playback not being implemented -and is being worked on irrespective of raspi related work. +The only remaining known issue is a slight gap in playback at track changes +this is likely due to gapless playback not being implemented and is being +worked on irrespective of Raspberry Pi related work.