In a recent emerge world alsa, sdl and a few other packages updated. mythmusic plays mp3s at lightning speed (perpetual fast forward) and can play an entire album in less than a minute. Previously it worked perfectly. It works for a fraction of a second and then just zooms right through the music. Hardware info: NFORCE 3, Athlon 64 (32 bit mode) kernels: 2.6.15-gentoo-r7, 2.6.16-gentoo-r7, 2.6.16-gentoo-r8 Current alsa: 1.0.11 Current libsdl: 1.2.10 (note: I tried going back to previous versions on both of those and it still did the same thing) Unfortunately I don't know what else updated. I thought everything was working until I tried to play a ripped CD for my daughter. I'm using output device: plughw:0,2 my dolby digital output. I haven't tried standard analog out yet to see if it works lspci of audio hardware: 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb AC'97 Audio Controller (rev a1) Thanks for any insights you can offer. If you need more info, just ask. emerge --info Portage 2.0.54-r2 (default-linux/x86/2006.0, gcc-3.4.6, glibc-2.3.6-r3, 2.6.16-gentoo-r8 i686) ================================================================= System uname: 2.6.16-gentoo-r8 i686 AMD Turion(tm) 64 Mobile Technology MT-32 Gentoo Base System version 1.6.14 dev-lang/python: 2.3.5, 2.4.2 dev-python/pycrypto: 2.0.1-r4 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=athlon-xp -mtune=athlon-xp -pipe -O3 -fweb -frename-registers -fforce-addr -momit-leaf-frame-pointer -fomit-frame-pointer -ftracer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/lib/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon-xp -mtune=athlon-xp -pipe -O3 -fweb -frename-registers -fforce-addr -momit-leaf-frame-pointer -fomit-frame-pointer -ftracer -fvisibility-inlines-hidden" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 3dnow 3dnowext X aac aalib alsa apache2 apm asf audiofile avi berkdb bitmap-fonts bzip2 cdparanoia cdr cli cpudetection crypt cups curl custom-cflags directfb dri dts dv dvd dvdread eds emboss encode esd exif expat fam ffmpeg flac foomaticdb fortran gd gdbm gif gmp gnome gpm gstreamer gtk gtk2 gtkhtml idn imagemagick imlib ipv6 isdnlog ithreads jack jpeg kde lame lcms libcaca libg++ libwww lzo mad matroska mhash mikmod mmx mmxext mng motif mp3 mpeg mysql mythtv nas ncurses nls nptl nptlonly nvidia ogg opengl oss pam pcre pdflib perl php png pppd pthreads python qt quicktime readline real reflection rtc sdl session spell spl sse sse2 ssl svga tcpd tga theora tiff truetype truetype-fonts type1-fonts udev unicode usb v4l v4l2 vorbis win32codecs xanim xine xinerama xml xml2 xmms xorg xv xvid xvmc zlib video_cards_nvidia input_devices_keyboard input_devices_linuxinput input_devices_ps2mouse userland_GNU kernel_linux elibc_glibc" Unset: CTARGET, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS, PORTAGE_RSYNC_OPTS
*** Bug 134851 has been marked as a duplicate of this bug. ***
Try using "mplayer" or "mpg123" to play out the sound and see if the problem still occurs.
Thanks for the reply. I meant to mention: Xine and Mplayer work fine as well as video + audio in mythtv. Its only mp3 audio in mythmusic that runs fast. Brian
It's doing the same thing using rhythmbox, and yes, it plays nice using mpg123 or mplayer.
It's not just mp3's, but apparently all mythmusic playback. At least I'm getting it for FLAC and maybe OGG too (I'll check).
I've been experiencing some problems with tv playback in mythtv as well. I get stuttering sound, and I believe that this is related to this bug. Both things can be "fixed" by changing the audio device to /dev/adsp on my machine.
suttering sound is because of IRQ interupts not triggering properly on your box. using adsp is an async type of setup so it can drop some of the data as necessary. Not related to this.
But the stuttering started at the same time as the fastforwarding in mythmusic started. That is what lead me to the conclusion that the issues were related. It's really more a question of garbled sound, rather than stuttering. And it starts after the playback has gone a little while, not right off.
Can't reproduce this anywhere. Haven't heard anything of this in any of the MythTV support channels (mailing list, irc, trac). I've heard lots of problems like this (fast sound, hissing sound, garbled sound) when using crazy CFLAGS like you've got. Unless you recompile your system without all these CFLAGS I don't think there's anymore that could really be done. Marking this as INVALID until you recompile it.
