Audio glitches

Bug #344159 reported by Dave Roberts on 2009-03-17
2
Affects Status Importance Assigned to Milestone
tuxguitar (Ubuntu)
Undecided
Unassigned

Bug Description

Binary package hint: tuxguitar-fluidsynth

Installed "Tuxguitar V1.0" + dependancies from backports also installed "Tuxguitar-Fluidsynth"
Audio playback via a Fluidsynth and any soundfont works, but glitches when the musical bar changes.
Tried all sound output options in preferences alsa, pulse.oss. no improvement.
This same setup works fine in Hardy however Intrepid has similar audio glitches and bad audio distortion on bar changes.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/yelp
NonfreeKernelModules: nvidia
Package: yelp 2.25.1-0ubuntu2
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: yelp
Uname: Linux 2.6.28-9-generic i686

Dave Roberts (drob-blueyonder) wrote :
Dave Roberts (drob-blueyonder) wrote :

Further to tuxguitar-fluidsynth sound problems

Ubuntu Jaunty.

Tuxguitar using plugin tuxguitar-fluidsynth for sound playback with soundfonts produces distortion, particularly with screen activity.
As an alternative I ran fluidsynth using the following command to load the soundfont 32MbGMStereo.sf2 :-
"fluidsynth -l -o audio.period-size=1024 /home/dave/Guitar/Soundfonts/32MbGMStereo.sf2"
I then selected within Tuxguitar tools...settings...sound and chose the "synth input port"
Tuxguitar then played without the distortion using fluidsynth.

This problem also occurs in Intrepid but not Hardy.

Karmic release uses fluidsynth 1.09 wich defaults to jack output not alsa.
Therefore no playback with tuxguitar-fluidsynth at all without much fiddling.
However I suspect using:-
"fluidsynth -l -a alsa -o audio.period-size=1024 /home/dave/Guitar/Soundfonts/32MbGMStereo.sf2"
to force alsa playback would solve it.

A change is required in tuxguitar-fluidsynth to address the audio period issue and alsa playback issues.

Julian (julian-casadesus) wrote :

This issue will be resolved on next version of tuxguitar and the plugin.
It happens because as default, the audio period size of fluidsynth is too small for pulseaudio
next version tuxguitar-fluidsynth plugin will have support to configure these kind of options.

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