Mailing List Archive: MythTV: Dev

PulseAudio output [was jack layer rewrite?]

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cal at graggrag

Jun 26, 2008, 5:06 AM

Post #1 of 10 (775 views)
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PulseAudio output [was jack layer rewrite?]

cal wrote:
> Driven by Ed W's comment way back when, I've been working on pulseaudio
> output for myth. As is, it mostly works (quite nicely!), and I hope soon
> to put it on a ticket.

voila, <http://svn.mythtv.org/trac/ticket/5473>
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abostock at gmail

Jun 26, 2008, 7:49 AM

Post #2 of 10 (746 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

2008/6/26 cal <cal[at]graggrag.com>:
> cal wrote:
>> Driven by Ed W's comment way back when, I've been working on pulseaudio
>> output for myth. As is, it mostly works (quite nicely!), and I hope soon
>> to put it on a ticket.
>
> voila, <http://svn.mythtv.org/trac/ticket/5473>
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> mythtv-dev mailing list
> mythtv-dev[at]mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
>

Just out of pure curiosity, what does pulseaudio support in myth
provide? any nice benefits to the user?

Ash
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Dibblahmythml0015 at pendor

Jun 26, 2008, 7:58 AM

Post #3 of 10 (746 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

Ashley Bostock wrote:
> 2008/6/26 cal <cal[at]graggrag.com>:
>> cal wrote:
>>> Driven by Ed W's comment way back when, I've been working on pulseaudio
>>> output for myth. As is, it mostly works (quite nicely!), and I hope soon
>>> to put it on a ticket.
>> voila, <http://svn.mythtv.org/trac/ticket/5473>
>
> Just out of pure curiosity, what does pulseaudio support in myth
> provide? any nice benefits to the user?
>
Sound system based up / downmixing support (2.0 -> 5.1,
etc), network audio, sound card combining (clone, 2 cards
become front / rear output, etc).

And crashyness, in my experience of it so far.

Cheers,

Allan.
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cal at graggrag

Jun 26, 2008, 8:04 AM

Post #4 of 10 (745 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

Ashley Bostock wrote:
> Just out of pure curiosity, what does pulseaudio support in myth
> provide? any nice benefits to the user?

Tough question. I think the main benefit of pulse support in myth
lies where you're already using/prefer pulseaudio, eg, your distro
uses it as the default sound server, or perhaps just weird personal
preference for the features it presents as a sound server. I can't
think of any compelling reasons to go to the trouble of installing
pulseaudio on a straight, simple myth system though.

cheers, Cal
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derliebegott at gmail

Jun 26, 2008, 1:07 PM

Post #5 of 10 (734 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

2008/6/26 Ashley Bostock <abostock[at]gmail.com>:
> 2008/6/26 cal <cal[at]graggrag.com>:
>> cal wrote:
>>> Driven by Ed W's comment way back when, I've been working on pulseaudio
>>> output for myth. As is, it mostly works (quite nicely!), and I hope soon
>>> to put it on a ticket.
>>
>> voila, <http://svn.mythtv.org/trac/ticket/5473>
>> _______________________________________________
>> mythtv-dev mailing list
>> mythtv-dev[at]mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
>>
>
> Just out of pure curiosity, what does pulseaudio support in myth
> provide? any nice benefits to the user?
>

As I read a few weeks ago, it can switch on-the-fly sound output from
one card to another, which is pretty useful (at least to me). I could
finally use my A2DP bluetooth headphones on the fly, without stopping
the video/music and without changing sound device in the mythfrontend
configuration.
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kent2 at optusnet

Jun 26, 2008, 4:43 PM

Post #6 of 10 (727 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

> From: mythtv-dev-bounces[at]mythtv.org [mailto:mythtv-dev-
> bounces[at]mythtv.org] On Behalf Of Ashley Bostock
> Sent: Friday, 27 June 2008 12:50 AM
> To: Development of mythtv
> Subject: Re: [mythtv] PulseAudio output [was jack layer rewrite?]
>
> Just out of pure curiosity, what does pulseaudio support in myth
> provide? any nice benefits to the user?
>

I've been considering using PulseAudio to send sound from my newly
installed kitchen frontend (PPC mac mini with crappy internal speakers)
to my main frontend + sound system in the lounge to get decent quality
sound throughout the house whilst still being able to watch the picture
whilst cooking. Possibly even add some sort of option to the OSD menu
'send sound to frontend', etc.

Never having used PulseAudio before this discussion makes me think that
this is possible, no idea how well the A/V sync would work out though.

Cheers,
-Kent

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dbadia at gmail

Jun 26, 2008, 5:27 PM

Post #7 of 10 (724 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

Heading a bit OT here... but does pulse audio support integratino with a
digital EQ of any sort?
I started exploring jack/jamin awhile back, but new got past some reverb
issues I encountered.

Thanks,
Dave

mythtv at colin

Jun 28, 2008, 11:23 AM

Post #8 of 10 (678 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

Ma Begaj wrote:
> As I read a few weeks ago, it can switch on-the-fly sound output from
> one card to another, which is pretty useful (at least to me). I could
> finally use my A2DP bluetooth headphones on the fly, without stopping
> the video/music and without changing sound device in the mythfrontend
> configuration.

Assuming bluetooth worked :)

FWIW, there is a GSoC project to integrate Pulse with BlueZ for direct
seamless bluetooth support. It's not done yet, but it will be very nice
when it's done.

Col

--

+------------------------+
| Colin Guthrie |
+------------------------+
| myth(at)colin.guthr.ie |
| http://colin.guthr.ie/ |
+------------------------+
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lists at wildgooses

Jun 29, 2008, 2:23 PM

Post #9 of 10 (643 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

Dave Badia wrote:
> Heading a bit OT here... but does pulse audio support integratino with
> a digital EQ of any sort?
> I started exploring jack/jamin awhile back, but new got past some
> reverb issues I encountered.

Since Pulse can talk into Jack then arguably you should setup Jack on
each destination to handle the reverb and point pulse to each
destination as appropriate?

I am in the same boat - I use Brutefir to apply some digital EQ and I
don't yet believe there is a FIR filtering plugin for Pulse yet (?)

Pulse looks like the way ahead though

Ed W
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cal at graggrag

Jul 1, 2008, 5:09 AM

Post #10 of 10 (590 views)
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Re: PulseAudio output [was jack layer rewrite?] [In reply to]

cal wrote:
> Ashley Bostock wrote:
>> Just out of pure curiosity, what does pulseaudio support in myth
>> provide? any nice benefits to the user?
>
> [ ... ] I can't think of any compelling reasons to go to the trouble
> of installing pulseaudio on a straight, simple myth system though.

Then again, it might make 5.1 and friends easier, ... dunno.

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