[gentoo-user] "X11 forwarding" so to say ... but for audio

[gentoo-user] "X11 forwarding" so to say ... but for audio

[Meino.Cramer]

Hi,

I am experimenting with microcrontrollers, dev-boards
and other stuff a lot.
Nowaday these "post stamps" are quite capable and often
run linux of some kind.

The beaglebone and the Orange PI PC are of those, even
running an X11 server.

X11 forwarding is quite handy in this cases...but I miss the
audio.

I am already tangled up in cables ... and dont want to add
just another cable to route the audio signal to my PC.

Is there any other way to get the audio from the (in this case)
Orange PI PC board to my PC in a way, that dont need cables
and is easily reconfigurable, if I will change the board
to something different?

Thanks a lot in advance for any help!

Best regards
Meino

PS: @James: Do you know the NodeMCU Lua v3 board? ;)

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Fernando Rodriguez]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 07/18/2016 01:16 AM, Meino.Cramer@gmx.de wrote:
> Hi,
> 
> I am experimenting with microcrontrollers, dev-boards
> and other stuff a lot.
> Nowaday these "post stamps" are quite capable and often
> run linux of some kind.
> 
> The beaglebone and the Orange PI PC are of those, even
> running an X11 server.
> 
> X11 forwarding is quite handy in this cases...but I miss the
> audio.
> 
> I am already tangled up in cables ... and dont want to add
> just another cable to route the audio signal to my PC.
> 
> Is there any other way to get the audio from the (in this case)
> Orange PI PC board to my PC in a way, that dont need cables
> and is easily reconfigurable, if I will change the board
> to something different?
> 
> Thanks a lot in advance for any help!
> 
> Best regards
> Meino
> 
> PS: @James: Do you know the NodeMCU Lua v3 board? ;)

PulseAudio.

https://askubuntu.com/questions/371687/how-to-carry-audio-over-ssh


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=zoYi
-----END PGP SIGNATURE-----

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Meino.Cramer]

Fernando Rodriguez <cyklonite@gmail.com> [16-07-18 07:32]:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> On 07/18/2016 01:16 AM, Meino.Cramer@gmx.de wrote:
> > Hi,
> > 
> > I am experimenting with microcrontrollers, dev-boards
> > and other stuff a lot.
> > Nowaday these "post stamps" are quite capable and often
> > run linux of some kind.
> > 
> > The beaglebone and the Orange PI PC are of those, even
> > running an X11 server.
> > 
> > X11 forwarding is quite handy in this cases...but I miss the
> > audio.
> > 
> > I am already tangled up in cables ... and dont want to add
> > just another cable to route the audio signal to my PC.
> > 
> > Is there any other way to get the audio from the (in this case)
> > Orange PI PC board to my PC in a way, that dont need cables
> > and is easily reconfigurable, if I will change the board
> > to something different?
> > 
> > Thanks a lot in advance for any help!
> > 
> > Best regards
> > Meino
> > 
> > PS: @James: Do you know the NodeMCU Lua v3 board? ;)
> 
> PulseAudio.
> 
> https://askubuntu.com/questions/371687/how-to-carry-audio-over-ssh
> 
> 
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2
> 
> iQIcBAEBCAAGBQJXjGfLAAoJEPbOFX/5UlwctQkP/iNU+KqzevUo37aLHe4HMz43
> JZR2bVO9noJL+AfFZRfl2Hms7tGL4aUWkBSX/LBK9WUBDb6kn9aoZHGc7TtxPIN/
> VpBcDCFseszXiVhp/Dn+Oib/oqr7882z6iHrliir2+BujiRFqK2mmSjvTDjY7Cry
> q8ut08mfmTtgfxhfQLGjtuVIFz3VttY3W60pnXjP1hYaNniDK1hV3xiDCC1I2lZy
> vKN46BrGiNR2DtdOFSnZ9lCCrC4Ba2R1NbQm1Zren444aVXPwc4tbXIZvSwTNul4
> 6A2/fxgbPLJe8tAwbv2hMDB/iX1GP9kpi3H2kSYOtVtr1hiksot0Dk7Nr2KcRTVJ
> +33UQrbcDO4x0JHVbbXmZJ9H/guSrxpT2TZMFddDAqyvDBcUfxnKe7DFIVsVpxlJ
> QivDGmo89gw2gTAk2FPtGBIni4+ycNO9CeCo2jALuK8H7qqokz1zVKiEGYhJP6ya
> G3HbQvu6kgBH9QIZTVIOMTLswnyD/+FZ5ltONJ1YWWDzfzgQDC2ZlUlfC98p45RN
> 871qK2qxGmL4NxIHGyJeLhq8Cg8ejvsvwDgTxIcCz1gwh4AhyKK7lylW6dstqQdn
> PpR+b+rh6e0+roVISxxDFbHLxWWUOOcfVzwnrPtZG834VSCfX5djdb5w08X0WPm6
> w8CDwi79D064penoyAuU
> =zoYi
> -----END PGP SIGNATURE-----
> 

Hi Fernando,

thanks for the link! Will check that...

Best 
Meino

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Erik Marsk]

[-- Attachment #1: Type: text/plain, Size: 206 bytes --]

Jack is another option:
https://github.com/jackaudio/jackaudio.github.com/wiki/WalkThrough_User_NetJack
https://github.com/jackaudio/jackaudio.github.com/wiki/WalkThrough_User_NetJack2

-- Emanuele Rusconi

[-- Attachment #2: Type: text/html, Size: 568 bytes --]

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Stroller]

> On 18 Jul 2016, at 06:16, meino.cramer@gmx.de wrote:
> 
> X11 forwarding is quite handy in this cases...but I miss the
> audio.

It might be worth looking at xpra if you want both together.

I would choose the 0.17.x release - Portage is bang up to date with the latest version.

http://xpra.org/trac/wiki/Versions

Any problems, use the xpra mailing list and you'll find the developer very helpful and responsive.

http://lists.devloop.org.uk/mailman/listinfo/shifter-users

Stroller.

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Meino.Cramer]

Stroller <stroller@stellar.eclipse.co.uk> [16-07-19 04:44]:
> 
> > On 18 Jul 2016, at 06:16, meino.cramer@gmx.de wrote:
> > 
> > X11 forwarding is quite handy in this cases...but I miss the
> > audio.
> 
> It might be worth looking at xpra if you want both together.
> 
> I would choose the 0.17.x release - Portage is bang up to date with the latest version.
> 
> http://xpra.org/trac/wiki/Versions
> 
> Any problems, use the xpra mailing list and you'll find the developer very helpful and responsive.
> 
> http://lists.devloop.org.uk/mailman/listinfo/shifter-users
> 
> Stroller.

Hi Stroller,

thanks for pointing me to this one! :)

But... 

I got some messages from the build process, I dont understand...

The XPRA-Wiki say for the building process:
    Gentoo
    The xpra ebuilds in portage are reasonably up to date, just avoid the outdated versions shipped as "stable"


So I did this:
    vemerge x11-wm/xpra-0.17.4
as root ("vemerge" is a little script I wrote which simply put the =
before and 's around the package name.)

This gives me:
Calculating dependencies |

!!! Problem resolving dependencies for =x11-wm/xpra-0.17.4                                                ... done!

!!! The ebuild selected to satisfy "=x11-wm/xpra-0.17.4" has unmet requirements.
- x11-wm/xpra-0.17.4::gentoo USE="client clipboard lzo opengl x264 x265 -csc -cups -dec_av2 -libav -lz4 -pulseaudio -server -sound -vpx -webp" ABI_X86="64" PYTHON_TARGETS="python2_7"

  The following REQUIRED_USE flag constraints are unsatisfied:
    client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )

  The above constraints are a subset of the following complete expression:
    any-of ( python_targets_python2_7 ) clipboard? ( any-of ( server client ) ) opengl? ( client ) any-of ( client server ) client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) ) any-of ( python_targets_python2_7 )



Not really sure what that means I added the following line

x11-wm/xpra x264

to package.use/.

and received the same message again.

Any advice how to get this compiled is very appreciated! ;)

Thanks a lot in advance for any help!
Best regards,
Meino

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Neil Bothwick]

[-- Attachment #1: Type: text/plain, Size: 695 bytes --]

On Tue, 19 Jul 2016 07:08:24 +0200, Meino.Cramer@gmx.de wrote:

> !!! The ebuild selected to satisfy "=x11-wm/xpra-0.17.4" has unmet
> requirements.
> - x11-wm/xpra-0.17.4::gentoo USE="client clipboard lzo opengl x264 x265
> -csc -cups -dec_av2 -libav -lz4 -pulseaudio -server -sound -vpx -webp"
> ABI_X86="64" PYTHON_TARGETS="python2_7"
> 
>   The following REQUIRED_USE flag constraints are unsatisfied:
>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )

It means that if you have client you need x264 and x265 and those both
require dec_av2, which is the one you don't have set.


-- 
Neil Bothwick

Smoking Can Damage Your Health....Unless us Non-Smokers do it first!

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Fernando Rodriguez]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 07/19/2016 03:49 AM, Neil Bothwick wrote:
> On Tue, 19 Jul 2016 07:08:24 +0200, Meino.Cramer@gmx.de wrote:
> 
>> !!! The ebuild selected to satisfy "=x11-wm/xpra-0.17.4" has unmet
>> requirements.
>> - x11-wm/xpra-0.17.4::gentoo USE="client clipboard lzo opengl x264 x265
>> -csc -cups -dec_av2 -libav -lz4 -pulseaudio -server -sound -vpx -webp"
>> ABI_X86="64" PYTHON_TARGETS="python2_7"
>>
>>   The following REQUIRED_USE flag constraints are unsatisfied:
>>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )
> 
> It means that if you have client you need x264 and x265 and those both
> require dec_av2, which is the one you don't have set.
> 
> 

I thought it meant that if you have client AND (x264 OR x265) then you
need dec_av2. client doesn't require x264 or x265 by itself.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=Rg38
-----END PGP SIGNATURE-----

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Neil Bothwick]

[-- Attachment #1: Type: text/plain, Size: 705 bytes --]

On Tue, 19 Jul 2016 07:21:33 -0400, Fernando Rodriguez wrote:

> >>   The following REQUIRED_USE flag constraints are unsatisfied:
> >>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )  
> > 
> > It means that if you have client you need x264 and x265 and those both
> > require dec_av2, which is the one you don't have set.
> > 
> >   
> 
> I thought it meant that if you have client AND (x264 OR x265) then you
> need dec_av2. client doesn't require x264 or x265 by itself.

Doesn't that use || ? Anyway, he has client and x264, so dec_av2 is
needed.


-- 
Neil Bothwick

Never argue with an idiot. First, they bring you down to their level.
Then they beat you with experience.

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Fernando Rodriguez]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 07/19/2016 08:17 AM, Neil Bothwick wrote:
> On Tue, 19 Jul 2016 07:21:33 -0400, Fernando Rodriguez wrote:
> 
>>>>   The following REQUIRED_USE flag constraints are unsatisfied:
>>>>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )  
>>>
>>> It means that if you have client you need x264 and x265 and those both
>>> require dec_av2, which is the one you don't have set.
>>>
>>>   
>>
>> I thought it meant that if you have client AND (x264 OR x265) then you
>> need dec_av2. client doesn't require x264 or x265 by itself.
> 
> Doesn't that use || ? Anyway, he has client and x264, so dec_av2 is
> needed.
> 

No, || means "any of", see [1]. And I believe in that case portage will translate
it to "any-of" or something like that. These are just nested conditionals. It can
be confusing even for someone with programming background. I suppose portage
could translate that into a more human friendly form but with many nesting levels
it will get ugly any way you put it.

And yes, dec_av2 is what he needs (unless he doesn't need x264 and x265 support).
I was just clearing the point about the meaning of the message.

[1] https://devmanual.gentoo.org/general-concepts/dependencies/

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=mUPb
-----END PGP SIGNATURE-----

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Meino.Cramer]

Fernando Rodriguez <cyklonite@gmail.com> [16-07-19 16:24]:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> On 07/19/2016 08:17 AM, Neil Bothwick wrote:
> > On Tue, 19 Jul 2016 07:21:33 -0400, Fernando Rodriguez wrote:
> > 
> >>>>   The following REQUIRED_USE flag constraints are unsatisfied:
> >>>>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )  
> >>>
> >>> It means that if you have client you need x264 and x265 and those both
> >>> require dec_av2, which is the one you don't have set.
> >>>
> >>>   
> >>
> >> I thought it meant that if you have client AND (x264 OR x265) then you
> >> need dec_av2. client doesn't require x264 or x265 by itself.
> > 
> > Doesn't that use || ? Anyway, he has client and x264, so dec_av2 is
> > needed.
> > 
> 
> No, || means "any of", see [1]. And I believe in that case portage will translate
> it to "any-of" or something like that. These are just nested conditionals. It can
> be confusing even for someone with programming background. I suppose portage
> could translate that into a more human friendly form but with many nesting levels
> it will get ugly any way you put it.
> 
> And yes, dec_av2 is what he needs (unless he doesn't need x264 and x265 support).
> I was just clearing the point about the meaning of the message.
> 
> [1] https://devmanual.gentoo.org/general-concepts/dependencies/
> 
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2
> 
> iQIcBAEBCAAGBQJXjjWmAAoJEPbOFX/5UlwcEvsP/RMEbpNJlJIbNHDIk5AANnlG
> /gox+r/K1/NWJ003WHtdHNNXZURa7jJrDoAsPbZ4fplbezdNNteLThYXJl1BA75G
> OZfc/M7zB3TeHSaTDPwTwCfUUZPsicc5CttPwgh127VcXLct+IV8TbDXiD31gK0U
> 56Shl54Fh5cymuBt3hrtUj4hBtczUITWHL2US6RRcKHHVkHmGGOKNiumXYTbt4Op
> w42htuFyXIvvIOCUZxM700nrw6yU/Cv7OCEps1pHor9V2lYYPgX+88U4tBWogOiN
> voFaUUkkqMt2y/3zo0KmKABb4JjKTa3ros/0x1UFck9wuMCyvf23i1f1hGhU3Ea/
> mq5XcTDO6oukPxpmQGveMT3NiS8vGyXkORPnOW8rT9dqJoivkYOK/5M9nZBlGIkq
> dfzbgbA664iDADxf1W4fdzjUXv5WYPgafqnhkmAbXkkCOZmvFFrZ6dupOe1rfJvV
> hg3IVAiO+Ape3vPbpd0gzHqzV+1TQGc/ljNF1XXW83Jp4LcslKZ1QZ3mFJ07LlQ+
> qQN+Iwu9L6JkohI+5VjwsT++YnooSIW7y3j4SKjR+peCV7GizqSJi7z+oT2spF6E
> 2lKhHDzb2Cpme0SuZFntytfjxYmg0G7UuAqNBMgP+Ep9iFpFXh22LdlTb32fEvMX
> toW7DP5Eln2Qq8LWW9/B
> =mUPb
> -----END PGP SIGNATURE-----
> 

Hi all-taht-are-helping-me :)

...I am currently facing more fundamental problems. Background:
I run an Orange PI PC (Allwinner H3 quadcore, 1.2GHz), which has
an HDMI connector, but this would mean an additional cable. Since
the Orange PI PC cannot be powered via USB, currently there
is a power cable and an ethernet cable around here (next is to 
replace the ethernet cable by a wlan connection, but first I need
some sound...)

The traditional ssh -X user@host and then starting a X-applications
runs quite well and even monsters like open office are quite
useable...until those applications with sound.

I tried xpra and (with your help! THX! :) it is spitting warnings
and is to slow even when using application, which do not create
sound.

I dont want pulseaudio. I tried that several times on my dekstop
Linux PC and it screws up things for reasons unknown to me. I will
not exclude the person in front of my monitor as one of the sources
of those problems...but why to give it another chance.

Jack-net isnt available fon Armbian as server application (Armbian
is running on the Orange PI PC).

I dont like HDMI since it is a monitor thingy and does not integrate
into the desktop well, since it is a physical switch. 

Any other chance to get X11 talking to me without any addtional cable?

Best regards,
Meino

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Fernando Rodriguez]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 07/19/2016 10:37 AM, Meino.Cramer@gmx.de wrote:
> Fernando Rodriguez <cyklonite@gmail.com> [16-07-19 16:24]:
> On 07/19/2016 08:17 AM, Neil Bothwick wrote:
>>>> On Tue, 19 Jul 2016 07:21:33 -0400, Fernando Rodriguez wrote:
>>>>
>>>>>>>   The following REQUIRED_USE flag constraints are unsatisfied:
>>>>>>>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )  
>>>>>>
>>>>>> It means that if you have client you need x264 and x265 and those both
>>>>>> require dec_av2, which is the one you don't have set.
>>>>>>
>>>>>>   
>>>>>
>>>>> I thought it meant that if you have client AND (x264 OR x265) then you
>>>>> need dec_av2. client doesn't require x264 or x265 by itself.
>>>>
>>>> Doesn't that use || ? Anyway, he has client and x264, so dec_av2 is
>>>> needed.
>>>>
> 
> No, || means "any of", see [1]. And I believe in that case portage will translate
> it to "any-of" or something like that. These are just nested conditionals. It can
> be confusing even for someone with programming background. I suppose portage
> could translate that into a more human friendly form but with many nesting levels
> it will get ugly any way you put it.
> 
> And yes, dec_av2 is what he needs (unless he doesn't need x264 and x265 support).
> I was just clearing the point about the meaning of the message.
> 
> [1] https://devmanual.gentoo.org/general-concepts/dependencies/
> 
>>
> 
> Hi all-taht-are-helping-me :)
> 
> ...I am currently facing more fundamental problems. Background:
> I run an Orange PI PC (Allwinner H3 quadcore, 1.2GHz), which has
> an HDMI connector, but this would mean an additional cable. Since
> the Orange PI PC cannot be powered via USB, currently there
> is a power cable and an ethernet cable around here (next is to 
> replace the ethernet cable by a wlan connection, but first I need
> some sound...)
> 
> The traditional ssh -X user@host and then starting a X-applications
> runs quite well and even monsters like open office are quite
> useable...until those applications with sound.
> 
> I tried xpra and (with your help! THX! :) it is spitting warnings
> and is to slow even when using application, which do not create
> sound.
> 
> I dont want pulseaudio. I tried that several times on my dekstop
> Linux PC and it screws up things for reasons unknown to me. I will
> not exclude the person in front of my monitor as one of the sources
> of those problems...but why to give it another chance.

You're not alone. Sadly as you're finding out, that is the state of such
applications. PulseAudio being the most widely used will probably
be the easiest to setup and find answers when you run into trouble.

On my laptops I disabled the pulseaudio use flag so none of my applications
is using it (except Bluez) but I keep it installed and running for bluetooth
audio. That way it cannot screw things up (except bluetooth audio but that 
doesn't work without it anyways). Yours would be a similar use case.

> Jack-net isnt available fon Armbian as server application (Armbian
> is running on the Orange PI PC).
> 
> I dont like HDMI since it is a monitor thingy and does not integrate
> into the desktop well, since it is a physical switch. 
> 
> Any other chance to get X11 talking to me without any addtional cable?
> 
> Best regards,
> Meino
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=9p0t
-----END PGP SIGNATURE-----

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Meino.Cramer]

Fernando Rodriguez <cyklonite@gmail.com> [16-07-19 17:44]:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> On 07/19/2016 10:37 AM, Meino.Cramer@gmx.de wrote:
> > Fernando Rodriguez <cyklonite@gmail.com> [16-07-19 16:24]:
> > On 07/19/2016 08:17 AM, Neil Bothwick wrote:
> >>>> On Tue, 19 Jul 2016 07:21:33 -0400, Fernando Rodriguez wrote:
> >>>>
> >>>>>>>   The following REQUIRED_USE flag constraints are unsatisfied:
> >>>>>>>     client? ( x264? ( dec_av2 ) x265? ( dec_av2 ) )  
> >>>>>>
> >>>>>> It means that if you have client you need x264 and x265 and those both
> >>>>>> require dec_av2, which is the one you don't have set.
> >>>>>>
> >>>>>>   
> >>>>>
> >>>>> I thought it meant that if you have client AND (x264 OR x265) then you
> >>>>> need dec_av2. client doesn't require x264 or x265 by itself.
> >>>>
> >>>> Doesn't that use || ? Anyway, he has client and x264, so dec_av2 is
> >>>> needed.
> >>>>
> > 
> > No, || means "any of", see [1]. And I believe in that case portage will translate
> > it to "any-of" or something like that. These are just nested conditionals. It can
> > be confusing even for someone with programming background. I suppose portage
> > could translate that into a more human friendly form but with many nesting levels
> > it will get ugly any way you put it.
> > 
> > And yes, dec_av2 is what he needs (unless he doesn't need x264 and x265 support).
> > I was just clearing the point about the meaning of the message.
> > 
> > [1] https://devmanual.gentoo.org/general-concepts/dependencies/
> > 
> >>
> > 
> > Hi all-taht-are-helping-me :)
> > 
> > ...I am currently facing more fundamental problems. Background:
> > I run an Orange PI PC (Allwinner H3 quadcore, 1.2GHz), which has
> > an HDMI connector, but this would mean an additional cable. Since
> > the Orange PI PC cannot be powered via USB, currently there
> > is a power cable and an ethernet cable around here (next is to 
> > replace the ethernet cable by a wlan connection, but first I need
> > some sound...)
> > 
> > The traditional ssh -X user@host and then starting a X-applications
> > runs quite well and even monsters like open office are quite
> > useable...until those applications with sound.
> > 
> > I tried xpra and (with your help! THX! :) it is spitting warnings
> > and is to slow even when using application, which do not create
> > sound.
> > 
> > I dont want pulseaudio. I tried that several times on my dekstop
> > Linux PC and it screws up things for reasons unknown to me. I will
> > not exclude the person in front of my monitor as one of the sources
> > of those problems...but why to give it another chance.
> 
> You're not alone. Sadly as you're finding out, that is the state of such
> applications. PulseAudio being the most widely used will probably
> be the easiest to setup and find answers when you run into trouble.
> 
> On my laptops I disabled the pulseaudio use flag so none of my applications
> is using it (except Bluez) but I keep it installed and running for bluetooth
> audio. That way it cannot screw things up (except bluetooth audio but that 
> doesn't work without it anyways). Yours would be a similar use case.
> 
> > Jack-net isnt available fon Armbian as server application (Armbian
> > is running on the Orange PI PC).
> > 
> > I dont like HDMI since it is a monitor thingy and does not integrate
> > into the desktop well, since it is a physical switch. 
> > 
> > Any other chance to get X11 talking to me without any addtional cable?
> > 
> > Best regards,
> > Meino
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> 
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2
> 
> iQIcBAEBCAAGBQJXjkieAAoJEPbOFX/5UlwcGxYP+QHFjWsyvZsuLJKaq0pQw/QD
> WNGir7xp7XVpTr5T2Pjq2UecJPvjRlOB15NsUbonLiep6R7P1HD5mlq4BBbmAJv8
> P6/xKZZ2LGg2a5JZrk8BgDWijMQNO7Z2+xm3pR0jVsAqzKehWw1lcTxiEHgZqm33
> te84Uwd4YKKUFl1Vf/qih1XVHs26TRtX/j4FuTk/JQWW0fZorBoQAl+i9C8PKO9k
> i8FNyQBv/3amgpPx1xxdQWhCrNF4ljdC7dXYbNHV5V2eMKxNO7YbOIxVdSVDaCt6
> ZyswWtTHYEktn+tgbu8Uv0fQ4KCJ36YgyOhkycEObanuV1QpfSrd5bWQ0Z8BG81m
> yCKhA58z6YeMI8inW6cOFERXprFLy5VNAg4RN8jhePEHzrI6U3GVfA6uAb+CPR2u
> Q65MDxq1X3YBrE8BW01OBhVdj/dS8PGBf7yA3inXkvplr2XibfGaBn7GghpBuVZL
> ruWBRv+OiL7cU8tfaFezIhdE590pAXq+fWEiqZrmSfuwjUovPi+JhyXh7W5LbWMB
> MinCChljYFw1G5ZnWDEd2WWF3ToCV4EDuSad+PtfHbOA89yp++TQIpysv5J9T0od
> OcuRKSnZj6FUMGuCuJOSpdNoLJQvi+lRzZKQVD3teKtN9s2hq5xertIHGfYpZqPo
> IbI8Xjm0Be5ptF8bLvwR
> =9p0t
> -----END PGP SIGNATURE-----
> 

Hi Fernando,

thanks for your kind help! :)

ok...I will give pulseaudio another try...(sigh)

Before I start...
If my memory serves me right...is it true, that X11 starts
automagically pulseaudio , if it founds it?

And if so: How can I prevent that?

Next problem is: that armbian offers a LOT of pulseaudio
related packages...any hint what I need to install as a
minimalistic solution (this is an embedded device with
far less resources and far less hoursepower...)?

And: What do I need to install on my GENTOO PC?

Thanks a lot in advance for any help!

Best regards,
Meino

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Marc Joliet]

[-- Attachment #1: Type: text/plain, Size: 1843 bytes --]

On Tuesday 19 July 2016 18:08:24 Meino.Cramer@gmx.de wrote:
> Fernando Rodriguez <cyklonite@gmail.com> [16-07-19 17:44]:
[...]
> 
> Hi Fernando,
> 
> thanks for your kind help! :)
> 
> ok...I will give pulseaudio another try...(sigh)
> 
> Before I start...
> If my memory serves me right...is it true, that X11 starts
> automagically pulseaudio , if it founds it?

Well, not quite.

> And if so: How can I prevent that?

Specifically, applications that request pulseaudio (via dbus, IIUC) will cause 
it to start automatically, regardless of whether they're graphical or not 
(e.g., on my home server MPD causes pulseaudio to start).  This can, however, 
be prevented by setting "autospawn=no" in .config/pulse/client.conf.

> Next problem is: that armbian offers a LOT of pulseaudio
> related packages...any hint what I need to install as a
> minimalistic solution (this is an embedded device with
> far less resources and far less hoursepower...)?

I have no experience here, sorry.

> And: What do I need to install on my GENTOO PC?

Well, at minimum media-sound/pulseaudio.  I'm not sure of anything to 
recommend here, so I'll defer to the Gentoo wiki: 
https://wiki.gentoo.org/wiki/PulseAudio.  Also see the upstream documentation: 
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/.  In 
particular check out the module documentation, since if you go the pulseaudio 
route you'll probably be setting up a tunnel, so I would suggest searching 
there for "tunnel" (although I'm not up to speed on what's currently possible 
in PA land, so maybe there's a better way).

> Thanks a lot in advance for any help!
> 
> Best regards,
> Meino

HTH
-- 
Marc Joliet
--
"People who think they know everything really annoy those of us who know we
don't" - Bjarne Stroustrup

[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Fernando Rodriguez]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 07/19/2016 12:30 PM, Marc Joliet wrote:
> On Tuesday 19 July 2016 18:08:24 Meino.Cramer@gmx.de wrote:
>> Fernando Rodriguez <cyklonite@gmail.com> [16-07-19 17:44]:
> [...]
>>
>> Hi Fernando,
>>
>> thanks for your kind help! :)
>>
>> ok...I will give pulseaudio another try...(sigh)
>>
>> Before I start...
>> If my memory serves me right...is it true, that X11 starts
>> automagically pulseaudio , if it founds it?
> 
> Well, not quite.
> 
>> And if so: How can I prevent that?
> 
> Specifically, applications that request pulseaudio (via dbus, IIUC) will cause 
> it to start automatically, regardless of whether they're graphical or not 
> (e.g., on my home server MPD causes pulseaudio to start).  This can, however, 
> be prevented by setting "autospawn=no" in .config/pulse/client.conf.

That too. I don't know if x11 forwarding uses dbus activation though and with
a minimal setup he won't have any programs to start it.

>> Next problem is: that armbian offers a LOT of pulseaudio
>> related packages...any hint what I need to install as a
>> minimalistic solution (this is an embedded device with
>> far less resources and far less hoursepower...)?
> 
> I have no experience here, sorry.
> 
>> And: What do I need to install on my GENTOO PC?
> 
> Well, at minimum media-sound/pulseaudio.  I'm not sure of anything to 
> recommend here, so I'll defer to the Gentoo wiki: 
> https://wiki.gentoo.org/wiki/PulseAudio.  Also see the upstream documentation: 
> https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/.  In 
> particular check out the module documentation, since if you go the pulseaudio 
> route you'll probably be setting up a tunnel, so I would suggest searching 
> there for "tunnel" (although I'm not up to speed on what's currently possible 
> in PA land, so maybe there's a better way).
> 

I think you just need the pulseaudio with the X and alsa use flags (and any other
flags you need to get it to emerge). I don't know exactly cause I just noticed that
I have a lot more stuff enabled than I need. You definitely don't want alsa-plugin or
your ALSA programs will use pulseaudio.

>> Thanks a lot in advance for any help!
>>
>> Best regards,
>> Meino
> 
> HTH
> 

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=WJc9
-----END PGP SIGNATURE-----

Re: [gentoo-user] "X11 forwarding" so to say ... but for audio

[Fernando Rodriguez]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 07/19/2016 12:08 PM, Meino.Cramer@gmx.de wrote:
> 
> Hi Fernando,
> 
> thanks for your kind help! :)
> 
> ok...I will give pulseaudio another try...(sigh)
> 
> Before I start...
> If my memory serves me right...is it true, that X11 starts
> automagically pulseaudio , if it founds it?

It used to be like that (through a .desktop file IIRC) but if you're
using systemd it now installs a systemd user unit, that's how I start
it. I think it still installs the .desktop files cause I deleted those
a while back and I remember getting them as a config update (etc-update)
recently.

> And if so: How can I prevent that?
> 
> Next problem is: that armbian offers a LOT of pulseaudio
> related packages...any hint what I need to install as a
> minimalistic solution (this is an embedded device with
> far less resources and far less hoursepower...)?
> 
> And: What do I need to install on my GENTOO PC?
> 
> Thanks a lot in advance for any help!
> 
> Best regards,
> Meino
> 
> 
> 
> 

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=fZaI
-----END PGP SIGNATURE-----

[gentoo-user] Re: "X11 forwarding" so to say ... but for audio

[James]

 <Meino.Cramer <at> gmx.de> writes:
 
> Hi,
<edit>
> PS:  <at> James: Do you know the NodeMCU Lua v3 board? ;)

Ju talkin to me?  Ju talkin to me?   
If so, sorry, had a major hardware issues where I lost a few days....

No not specifically, but that does not matter, embedded is embedded
and it's always broken, until you find the magic (hardware) tweaks
and codes that make it submissive, so let's take a walk thru your issues.

PS, I'm close on my install apparatus so when that is done I intend to
populate my micro Data Center with all sorts of new hardware boards
(get an embedded list ready).


> I am experimenting with microcrontrollers, dev-boards
> and other stuff a lot.
> Nowaday these "post stamps" are quite capable and often
> run linux of some kind.
> The beaglebone and the Orange PI PC are of those, even
> running an X11 server.
> X11 forwarding is quite handy in this cases...but I miss the
> audio.

Why not try to get (gentoo) linux running a arm64v8 board, with  gigs
of ram and gigE and such so you can run a low power workstation from a
board taped (mounted) to the back of the monitor? There are many
and once you get gentoo installed, then choose a minimal DE like
lxde, xfce or lxqt? Audio and video on the same board. Here's
one example (not sure there is a published gentoo port, yet), 
for less than $50::

http://www.cnx-software.com/2016/02/29/odroid-c2-64-bit-arm-development-board-is-now-available-for-purchase-for-40/

This is just an example. I'm not current atm on the latest offerings.
Most run debian, which is fine for now until you finish a gentoo port,
or find one on the IRC channel   gentoo-embedded@gentoo.org

> I am already tangled up in cables ... and dont want to add
> just another cable to route the audio signal to my PC.

Make sure you keep straight your 'line level' signals and the 
boosted output signals, I test with a 3" speaker or small to make
sure a valid audio signal is first exiting an embedded board jack.
If you want a routeable audio protocol (?) You could always use midi::

http://www.instructables.com/id/Send-and-Receive-MIDI-with-Arduino/

Hit me up with private email, if you get stuck, but, I'm kinda swamped
right now.....


Some embedded boards have an RF chip for radio broadcast, that is low power,
so you could just broadcast to a receive and a pair of connected/powered
speakers, just for grins. (I have no boards doing this currently, as I have
way too much audio gear that is idle atm.) But that sort of arrangement will
need an externally powered audio amp to get the dB levels up. I know 
one guy that just broadcasts to his home theatre  hardware for SS-7
audio on an embedded board and just lies to his friends about how
he does it....(I traced out the wire and looked at the board to figure
it out.....  Datasheets are your friend. Motorola/Freescale/<whatever they
call themselves> has a plethora of arm cores and robust audio chips,
including a full spectrum analyzer so you can specify what will end
up with before you build something.....


> Is there any other way to get the audio from the (in this case)
> Orange PI PC board to my PC in a way, that dont need cables
> and is easily reconfigurable, if I will change the board
> to something different?

Meino. Your best bet is do write up a spec of what you want, go to
the gentoo-embedded IRC channel (yuck, I hate IRC, as you know) and
ask for a turnkey (monkey see monkey do) low cost recommendation.
Or go to one of the debian embedded lists and ask for a cheap solution.
Also, research the Rf spectrum rules in the country you are in 
before selecting Rf broadcast chips on a dev board, just to be legal.
Germany is rather 'tight assed' about this, if I recall correctly.
Here in the US, some TV sidebands are available for experimentation
as broadcasters abandon those freqs.

http://blog.rfvenue.com/more-on-the-fccs-proposed-new-rules-for-licensed-and-unlicensed-microphones/

http://www.digitaltrends.com/how-to/how-to-stream-audio-video-in-your-home/

Or you buy an embedded board that has an HDMI output and a stereo
output jack, you would have what you need. Some 32 bit arm boards will
have both of these and a minimized X11 Desktop environment will fly
on them, minus 3D stuff. Look at the video chip and research that it has a
bit of video ram with it, just to be safe. There are lots of new embedded
boards coming out every week, so do the latest research and make sure
at least debian is readily available from the hardware vendor. There is
some 'bait and switch' going on among the smaller players.

http://www.96boards.org/products/


rspi3::
https://www.amazon.com/Raspberry-Pi-RASP-PI-3-Model-Motherboard/dp/B01CD5VC92

** do your own research**

> Thanks a lot in advance for any help!
> Best regards
> Meino


hth,
James