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Audio plays on wrong soundcard on some HTML5 videos

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Posted

I have 3 sound cards on my system and i have selected one of them as the default one. Any app works with that sound card, but Firefox when playing some HTML5 videos uses another one.

If i disable that wrong sound card, the audio is played on the other non-default one. If i also disable this, then no audio is played at all. Other apps like iTunes, Media Player and games work fine. Videos played using Flash plug-in are fine too.

These HTML5 videos cause the issue on my system: http://broken-links.com/tests/video/ http://www.w3schools.com/html/html5_video.asp [YouTube HTML5 videos]

But videos in this page are played correctly (webm and ogg/theora of course): http://www.quirksmode.org/html5/tests/video.html

I also tried to disable AdBlock Plus and the issue still happens.

My system specs: Windows 8 Pro RTM 64bit FireFox 18.0

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.01
  • VLC media player Web Plugin 2.0.2
  • iTunes Detector Plug-in
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

Informazioni di base
Nome
Firefox
Versione
18.0
User agent
Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
Configurazione build
about:buildconfig
Estensioni
Nome
Versione
Attiva
ID
Adblock Plus
2.2.1
true
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
Preferenze importanti modificate
Nome
Valore
browser.cache.disk.capacity
358400
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size.use_old_max
false
browser.cache.disk.smart_size_cached_value
358400
browser.places.smartBookmarksVersion
4
browser.startup.homepage
https://www.google.com/ig
browser.startup.homepage_override.buildID
20130104151925
browser.startup.homepage_override.mstone
18.0
dom.mozApps.used
true
extensions.lastAppVersion
18.0
gfx.direct3d.prefer_10_1
true
network.cookie.prefsMigrated
true
places.history.expiration.transient_current_max_pages
103754
privacy.sanitize.migrateFx3Prefs
true
security.warn_viewing_mixed
false
Grafica
Data aggiornamento driver
6-21-2012
Descrizione scheda grafica
NVIDIA GeForce GT 330M (Microsoft Corporation - WDDM v1.2)
Direct2D attivo
true
DirectWrite attivo
true (6.2.9200.16433)
Driver scheda grafica
nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Finestre con accelerazione GPU
1/1 Direct3D 10
GPU #2 attiva
false
ID dispositivo
0x0a29
ID produttore
0x10de
RAM scheda grafica
512
Rendering WebGL
Google Inc. -- ANGLE (NVIDIA GeForce GT 330M (Microsoft Corporation - WDDM v1.2) )
Versione driver
9.18.13.286
AzureCanvasBackend
direct2d
AzureContentBackend
direct2d
AzureFallbackCanvasBackend
cairo
JavaScript
GC incrementale
true
Accessibilità
Attivato
false
Impedisci accessibilità
0
Versioni librerie
Versione minima prevista
Versione in uso
NSPR
4.9.4
4.9.4
NSS
3.14.1.0 Basic ECC
3.14.1.0 Basic ECC
NSSSMIME
3.14.1.0 Basic ECC
3.14.1.0 Basic ECC
NSSSSL
3.14.1.0 Basic ECC
3.14.1.0 Basic ECC
NSSUTIL
3.14.1.0
3.14.1.0