AW: No sound without JACK

[Ralf Mardorf]

On Tue, 2010-08-17 at 02:00 +0200, Pablo wrote:
> Hi Ralf!
> 
> Ralf Mardorf wrote:
> 
> > 1. How should sound be enabled usually for apps without JACK audio support  
> > on Ubuntu Studio?
> >
> > Could there be an issue regarding to PA not loading the needed modules?
> > I'm using two Envy24 based Terratec EWX 24/96 PCI sound cards on amd64  
> > architecture, on-board sound is disabled.
> >   
> Check this:
> 
> https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/178442
> 
> I did as comment #30 and it worked for me with a m-audio audiophile 2496 
> which also uses the alsa module snd-ice1712. The problem remains in 
> ubuntustudio maverick alpha. See:
> 
> http://www.mail-archive.com/ubuntustudio-testers@lists.launchpad.net/msg00351.html

Thank you Pablo, it does solve this issue :).

I wonder what will happen, if I make my 2 Terratec EWX 24/96 cards 1 virtual card, anyway, today I just tested to get 1 of the 2 cards ready to work.

I tested analog stereo for KMPLayer set up to use PA and the sound preferences were set up to analog stereo output and simultaneous output for both cards, while I just tested one of the cards, but the sound was ok :).

Anyway, before this test Movie Player crashed and there are issues for the website of a friend, http://achimjaroschek.com/music.html, while sound was ok for his YouTube channel, e.g. http://www.youtube.com/watch?v=Mu6uFtCASYc.

This does the trick:

$ cat /usr/share/alsa/cards/ICE1712.conf
#
# Configuration for the ICE1712 (Envy24) chip
#
[snip]
<confdir:pcm/front.conf>

ICE1712.pcm.front.0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type route
	ttable.0.0 1
	ttable.1.1 1
	slave.pcm {
		type hw
		card $CARD
	}
	#### fix PA issue ####
	slave.format S32_LE
        slave.channels 10
	######################
}
[snip]

Unfortunately there are still many issues and today there are some new issues. I don't have those issues with 64 Studio 3.0 beta (Hardy) and 3.3 alpha (Karmic) amd64.

I'm still in a production with recordings Achim and I made, so there's no time to fix Ubuntu Studio right now. I'm doing the production using 64 Studio 3.3 alpha and even if the software works without issues, it's still tricky and time consuming and there always is the risk of a crash, so I can't use Linux for recording Achim and friends or other serious musicians who are short in time, only if there's a lot of time, it can be used for post processing. IMO for Ubuntu Studio it would help to remove desktop stuff like PA from the distro.

This and next month Achim does some concerts in Germany, http://achimjaroschek.com/, certainly I'll be at the concerts in the Ruhrgebiet.

The next 6 month I'll do a job with elementary school kids, but professional musicians, it might be that Linux could be more interesting then.

> 
> 
> > 2. Does anybody know how to add libflashsupport-jack? Compiling and  
> > installing seems to be ok, I guess there's an issue regarding to set up  
> > everything correctly.
> I am not sure. I am checking this post and comments:
> 
> http://www.linuxmusicians.com/viewtopic.php?f=4&t=2323&st=0&sk=t&sd=a&hilit=flash+player
> 
> Please, let us know if you solve this.

Again, thank you :). If I should have more time, I'll continue and let you know what happened.

To be continued

Ralf

> 
> Cheers! Pablo
> > Cheers!
> >
> > Ralf
> >
> > [1]
> > ------------------------------------------------------------------------
> > Ubuntu Studio
> >
> > $ sudo apt-get update
> > $ sudo apt-get install libasound2-dev libjack-dev libsamplerate0-dev  
> > libssl-dev build-essential git-core autoconf automake libtool
> > $ git clone git://repo.or.cz/libflashsupport-jack.git
> > $ cd libflashsupport-jack
> > $ sh bootstrap.sh
> > $ make
> > $ sudo make install
> > $ sudo ln -s /usr/lib/libflashsupport.so /usr/lib/firefox-3.6.8/
> >
> > $ cat /etc/ld.so.conf.d/libc.conf
> > # libc default configuration
> > /usr/local/lib
> >
> > # Regarding to libflashsupport I added:
> > # If you ever happen to want to link against installed libraries
> > # in a given directory, LIBDIR, you must either use libtool, and
> > # specify the full pathname of the library
> > # [snip] add LIBDIR to `/etc/ld.so.conf'
> >
> > /usr/lib
> > /usr/lib/libflashsupport.so
> >
> > $ sudo ldconfig

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