Quoting Gene Heskett <gheskett@xxxxxxxx>:
On Monday 28 October 2013 10:44:40 Barney Holmes did opine:
Quoting Brett McCoy <idragosani@xxxxxxxxx>:
> On Mon, Oct 28, 2013 at 5:48 AM, michael noble <looplog@xxxxxxxxx>
wrote:
>> Must be that time of year again when slashdotters get a bee in their
>> bonnet about how useless Linux is for audio production. Enter at
>> your own risk...
>>
>> http://ask.slashdot.org/story/13/10/27/0534248/ask-slashdot-best-cros
>> s-platform-linux-only-audio-software?utm_source=rss1.0mainlinkanon&ut
>> m_medium=feed
>
> Ha, I stopped reading /. a long time ago. I can see not much has
> changed...
Same here. It seemed to turn into a cynicism fest in many
circumstances. If this kind of post (no I didn?t go in, I have enough
anger already) is anything special or just the usual I don't know.
However there is a HUGE watershed going on at the moment that
undoubtedly is spilling well beyond the borders of open source land.
Something extraordinary IS happening and I don't see why anyone should
be embarrassed about giving themselves a pat on the back or even
getting others to pat them on that back ! An enormous amount of work
by thousands upon thousands is paying off. The fruits started
happening with Android, despite proprietary drivers (if Google had
refused that none of the mobile phone manufactures would have even
used Android!), then Ubuntu, as well as the less visible internet
servers and embedded technologies. But the one that takes the biscuit
for me is Steam announcing SteamOS. This is going to be a huge change
in what has been a long standing corporate culture of
Microsoft/Nvidia/Intel. Video games are the quintessential example of
the Real Time application. Graphics and sound all running as a real
time application. There's hints of where this is going in things like
the 3D synth by Robert Gareus. Look at the 3D menu / interface that
you can spin around in Borderlands 2. It amazes me that we are not
already using 3D window managers and are still stuck in static 2D land
(go ask Ted Nelson about that).
Where does this take Linux Audio Users ? Well the future is bright.
What's over that horizon ? I've been looking at Blender Game Engine
for doing VJ visuals (it can play full frame video within the game
engine and spin that around a'la a high end vision mixing desk).
Combined with sound who knows what kind of 3D dynamic sound mixing
environments could be created ?
So Linux bashing, go easy on them.
DJ Barney
I have not yet looked at SteamOS, but you are claiming realtime for it.
We don't know the gritty technical details of SteamOS yet. I was only
claiming that video games are a form of Real Time application. Things
have to go off, be processed, and return within a given time limit,
but it's not as stringent as the needs of a robotics production line.
As every gamer knows, esp. PC gamers, there are sometimes slight
glitches, short freezes and frame rate drops because the game is not
tuned to known hardware like it is for a console. Who would put up
with this while watching TV, or from their hardware CD player ? Yet, I
payed £20 for Borderlands 2 recently. Should I not have guaranteed
uninterrupted game play for that price ? But I think this is what
Valve are up to. Developers will develop for known hardware specs and
if there are glitches on other machines then "its your own problem"
(but I hope they will support DIY PC people as well). All this has
some similarity to the company, I forget the name, who sell music
production systems pre-installed on a known hardware config laptop.
That pulls my curiosity trigger because one of my hobbies is CNC
machinery, and its realtime demands are far more stringent than some .1
millisecond accurate audio delivery. Currently we are running linuxcnc on
2.6.32-122-RTAI, but that RTAI patch is invasive as hell, and extremely
difficult to apply to a newer kernel, so we are running on Ubuntu-10.04.4
LTS yet, with an occasional hiccup at other functions.
Valve development may help with that, assuming they actually work on
any RT stuff, but I'd be very surprised if they didn?t. This is
happening with Android development being flowed back into the Linux
kernel -
http://www.zdnet.com/blog/open-source/linux-guru-re-merging-of-android-into-kernel-eases-sysdev-a-bit/10635
If SteamOS is claiming real time, just how "realtime" is it? We need to
have an I/O heartbeat running at a 20 to 25 u-sec rate, with not over a 3
u-sec jitter in that timing to run well. Currently the intel atom based
boards are the goto boards for that, but we could sure use some additional
iron in the mix, which oddly, seems to point toward the BeagleBoneBlack
because of its bank of programmable realtime units (PRU's) and a true feast
of I/O pin availability that can serve as the step pulse generators.
We should see the source code of SteamOS sometime in 2014.
I have an old HP box with a 1 Ghz athlon in it that could serve as a proof
of concept box if this is downloadable and buildable on it.
So, what say you that have tasted this?
I will be installing SteamOS on my PC when it comes out. If it has any
use for music production remains to be seen. What I'm tracking is the
effect these developments are having on the future of developments for
Linux audio users in the open source ecosystem.
Thanks.
Cheers !
> --
> Brett W. McCoy -- http://www.brettwmccoy.com
> ----------------------------------------------------------------------
> -- "In the rhythm of music a secret is hidden; If I were to divulge
> it, it would overturn the world."
>
> -- Jelaleddin Rumi
>
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Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Immanuel Kant but Kubla Khan.
A pen in the hand of this president is far more
dangerous than 200 million guns in the hands of
law-abiding citizens.
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