Bug 677290

Summary: USB TV device / usbaudio / loud hum
Product: [Fedora] Fedora Reporter: Arne Woerner <arne_woerner>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CANTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 14CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-02-17 14:25:59 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Arne Woerner 2011-02-14 09:27:23 UTC 
Description of problem:
My "Pinnacle PCTV USB2 PAL" device provides a /dev/video2 and a pulseaudio/alsa_input.hw_1 device. The video looks good, but the audio stream sounds really bad... example: http://www.wgboome.de./bla.wav

On linux-media mailing list someone suggested, that the usbaudio driver gets some YUV data mixed with audio data...
http://www.spinics.net/lists/linux-media/msg28889.html

I think even with a filter that removes extreme values
(http://www.wgboome.de./blah.raw -> http://www.wgboome.de./blah.ogg)
the device will be unusable,
because: the sample rate is unknown...

Version-Release number of selected component (if applicable):
fedora core 14
fully updated

How reproducible:
always

Steps to Reproduce:
1. plug in the device
2. mplayer -tv 
driver=v4l2:input=0:width=768:height=576:device=/dev/video2:norm=5:chanlist=europe-west:freq=224.25 tv://
3. parec --device=alsa_input.hw_1 > bla.raw
  
Actual results:
loud noise + good video + (shifted?) sound

Expected results:
good video + matching sound

Additional info:
the ms windows drivers deliver bad sound 2, i have been told...
Comment 1 Arne Woerner 2011-02-17 14:25:59 UTC 
i cant test this anymore, because i return it since it is surely buggy... -Arne