Timidity makes garbled noise

[olligobber]

tested on midi and xm files
notes lost totally is usually very high
sometimes it will play part of the music

issue only seems to be occurring since upgrading from 14.10 to 15.04

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: timidity 2.13.2-40.2
ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
Uname: Linux 3.19.0-21-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Jun 26 20:47:38 2015
InstallationDate: Installed on 2015-03-20 (98 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: timidity
UpgradeStatus: Upgraded to vivid on 2015-06-26 (0 days ago)

[Matthijs Kooijman (matthijskooijman)]

I can reproduce this on a Debian Jessie system. Bypassing pulseaudio makes playback work normally:

    pasuspender -- timidity up_on_the_housetop.mid -o hw:0

[olligobber (sirolligobbervii)]

This issue seems very similar to one I am having in audacity as well as timidity.

https://bugs.launchpad.net/ubuntu/+source/audacity/+bug/1246092

[olligobber (sirolligobbervii)]

I can link this bug (and the audacity one) to an error in ALSA. I am going to test this with a live usb.

[olligobber (sirolligobbervii)]

The bug only occurs when using timidity (or audacity) through pulse audio and a usb audio device on Ubuntu 15.04.

[Matthijs Kooijman (matthijskooijman)]

Similar observation at my end: It works through pulse to my intel_hda sound card, but fails through pulse to my Terratec Aureon 5.1MKII USB audio device. Perhaps a bug in the USB audio driver?