gst-base 1.7 update created background buzzing noise with audioconvert

[Doug McMahon]

Also affects cdplayer (goobox).
 Is not seen in audacious or vlc at all (using default audio of pulse
Test case: insert audio cd, play in rhymbox or cdplayer
What happens: significant background buzzing

May be gstreamer issue?

Attached is simple recording of what Rb is outputting.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-1.15-generic 4.4.0
Uname: Linux 4.4.0-1-generic x86_64
ApportVersion: 2.19.4-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: doug 1652 F.... pulseaudio
 /dev/snd/pcmC1D0p: doug 1652 F...m pulseaudio
 /dev/snd/controlC1: doug 1652 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Jan 29 12:00:33 2016
InstallationDate: Installed on 2016-01-14 (14 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160114)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: High background noise, or volume is too low
Title: [20217, Realtek ALC282, Speaker, Internal] Background noise or low volume
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 74CN44WW(V3.05)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: VIQY0Y1
dmi.board.vendor: LENOVO
dmi.board.version: 31900058STD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Y510P
dmi.modalias: dmi:bvnLENOVO:bvr74CN44WW(V3.05):bd09/18/2013:svnLENOVO:pn20217:pvrLenovoIdeaPadY510P:rvnLENOVO:rnVIQY0Y1:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoIdeaPadY510P:
dmi.product.name: 20217
dmi.product.version: Lenovo IdeaPad Y510P
dmi.sys.vendor: LENOVO

[Kev Bowring (flocculant)]

Is it like this? https://sendvid.com/sa7b0i4n

[Doug McMahon (mc3man)]

Seems so, I had attached an audio recording to the orig. report, look
above, sounds similar

On 01/29/2016 01:10 PM, flocculant wrote:
> Is it like this? https://sendvid.com/sa7b0i4n
>

[Doug McMahon (mc3man)]

Results of some suggested gst commands -
gst-launch-1.0 cdparanoiasrc mode=1 ! audioconvert ! audioresample ! alsasink # bad
gst-launch-1.0 cdparanoiasrc mode=1 ! audioconvert ! audioresample ! pulsesink # bad

gst-launch-1.0 cdiocddasrc mode=1 ! audioconvert ! audioresample ! pulsesink # bad
gst-launch-1.0 cdiocddasrc mode=1 ! audioconvert ! audioresample ! alsasink # good

[Kev Bowring (flocculant)]

Ok - so possibly not just audio cd's given I see similar without any cd hardware at all, similarly not the clementine issue I reported (bug 1537184)

I've been having the issue for a couple of weeks - possibly related to gst changes - changelogs show changes at about the time I saw the issue first, though just assumed it was clementine in dev version at the time.

bag, good and ugly saw changes 5/6th Jan, base 11th Jan

[Doug McMahon (mc3man)]

Clementine's issue here is it uses wrong sample rate

[Raymond (superquad-vortex2)]

[15087.605353] ufs: ufs_fill_super(): bad magic number
[15087.607466] hfs: can't find a HFS filesystem on dev sda1
[15088.493763] EXT4-fs (sdb4): VFS: Can't find ext4 filesystem
[15088.494766] EXT4-fs (sdb4): VFS: Can't find ext4 filesystem
[15088.495725] EXT4-fs (sdb4): VFS: Can't find ext4 filesystem
[15088.496784] FAT-fs (sdb4): bogus number of reserved sectors
[15088.496787] FAT-fs (sdb4): Can't find a valid FAT filesystem
[15088.500312] XFS (sdb4): Invalid superblock magic number
[15088.502630] FAT-fs (sdb4): bogus number of reserved sectors
[15088.502633] FAT-fs (sdb4): Can't find a valid FAT filesystem
[15088.505591] VFS: Can't find a Minix filesystem V1 | V2 | V3 on device sdb4.
[15088.506810] hfsplus: unable to find HFS+ superblock

[Joseph Wakeling (webdrake)]

AFAICT this also affects CD ripping via e.g. Rhythmbox: the resulting audio files contain the horrendous buzz.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Thanks, do you have crossfading enabled in rb edit->preferences->playback? Does it do it without it?

[Will Cooke (willcooke)]

I have enabled and disabled cross fading and it made no difference.

[Kev Bowring (flocculant)]

I found if I enabled crossfade then played audio it worked, took a reboot to get the issue.

ftr - removing gstreamer1.0-plugins-base 1.7.1-1ubuntu1 and installing the wily version gstreamer1.0-plugins-base_1.6.0-1ubuntu1 the issue of 'buzzing' disappears.

Same with the clementine playback issue I reported in the older bug I reported at 1537184

[Sebastien Bacher (seb128)]

Reported upstream on https://bugzilla.gnome.org/show_bug.cgi?id=762085

[Nazar Mokrynskyi (nazar-pc)]

I can confirm, downgraded package to 1.6.3-1ubuntu1 and Clementine now plays fine.

[Sebastien Bacher (seb128)]

That's fixed with https://bugs.launchpad.net/ubuntu/+source/gst-plugins-base1.0/1.7.2-1ubuntu1