[LAU] html5 audio through jack

[Kazakore]

On 30/08/14 22:48, rob wrote:
> On 30/08/14 13:09, Kazakore wrote:
>>
>> On 30/08/14 16:23, Iain Mott wrote:
>>> Hi list,
>>>
>>> I'm thinking of updating some of my web pages to use multi-platform
>>> flash/html5 audio players, at present they use flash only and won't 
>>> play
>>> on iPads for example.
>>>
>>> Due to some problems I was having with pulse audio in relation to my 
>>> HDSP
>>> interface I have recently disabled it and all my audio is running via
>>> jack/alsa and
>>> the HDSP interface. With flash in firefox, there are no problems and 
>>> the
>>> audio plays. My .asoundrc is configured with the following:
>>>
>>> pcm.rawjack {
>>>      type jack
>>>      playback_ports {
>>>          0 system:playback_1
>>>          1 system:playback_2
>>>      }
>>>      capture_ports {
>>>          0 system:capture_1
>>>          1 system:capture_2
>>>      }
>>> }
>>>
>>> pcm.jack {
>>>      type plug
>>>      slave { pcm "rawjack" }
>>>      hint {
>>>       description "JACK Audio Connection Kit"
>>>      }
>>> }
>>>
>>>
>>> pcm.!default {
>>>      type plug
>>>      slave { pcm "rawjack" }
>>> }
>>>
>>>
>>>
>>> HTML5 players in firefox don't play however via jack. When pulse was
>>> enabled, HTML5
>>> content would play through the computer's built-in sound card. Now that
>>> it's disabled I can't get it to play through jack.
>>>
>>> An example page with a HTML5 player is here:
>>>
>>> http://www.html5tutorial.info/html5-audio.php
>>>
>>> Any suggestions please? A modification of the .asoundrc?
>>>
>>> I'm running Ubuntu 14.04
>>>
>>> Thanks,
>>>
>>> _______________________________________________
>>> Linux-audio-user mailing list
>>> Linux-audio-user at lists.linuxaudio.org
>>> http://lists.linuxaudio.org/listinfo/linux-audio-user
>>
>> Can't help but can tell you I have the exact same problem! I also don't
>> get audio from streaming media directly from the internet (eg a web
>> hosted .ogg) Have you managed to get that working? I use VLC's
>> Multimedia Plugin for firefox, VLC is set to Jack, also have all
>> GStreamer routed through Jack, but "normal" firefox audio never 
>> reaches it.
>>
>> Good luck with this one. It's part of the reason Arch is feeling so
>> appealing to me right now. I can truly get a system with no P(IT)A in
>> there! ;-)
>>
>> Dale.
>>
>> _______________________________________________
>
> http://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge might 
> be worth looking at.
>
> rob
>
>
> _______________________________________________
>

I'm sure it used to be at the bottom of this page it had a note about 
how going the ALSA Loopback route would stop you being able to change 
settings from within QJackCtl, and just at the same point I read it 
there was a thread on here by somebody not being able to set up Jack 
through QJackCtl which at the time I assumed must be related. Can't see 
any comment on it anywhere at all now though...

http://jackaudio.org/faq/routing_alsa.html

But obviously that would be unacceptable and why I never tried 
re-routing ALSA.

Dale.