Hi everyone,
I am looking for a self balancing binary tree implementation
in C or C++ that I can use in the JACK proces callback.
I was thinking about something like multiset in c++ (equal keys allowed),
but that doesn't use dynamic memory allocation.
Thanks for your help
Greetings,
Lieven
[Apologies for cross-postings]
[Please distribute]
8th Sound and Music Computing Conference, 06-09 July 2011
Department of Information Engineering, University of Padova
Conservatorio Cesare Pollini, Padova
http://smc2011.smcnetwork.org/
The SMC Conference is the forum for international exchanges around the
core interdisciplinary topics of Sound and Music Computing. SMC 2011
will feature lectures, posters/demos, musical/sonic works, and other
satellite events. The SMC Summer School will take place just before the
Conference and it will aim at giving an opportunity to young researchers
interested in the field to learn about some of the core interdisciplinary
topics and to share their own experiences with other young researchers
================Important dates=================
Deadline for submissions of papers and music: Friday 25 March, 2011
Deadline for applications to Summer School: Friday 25 March, 2011
Notification of acceptance to Summer School: Monday 18 April, 2011
Notification of paper and music acceptances: Friday 6 May, 2011
Deadline for submission of camera-ready papers: Friday 20 May, 2011
SMC 2011 Summer School: Saturday 2 - Tuesday 5 July, 2011
SMC 2011 Satellite Events: Wednesday 6 July, 2011
SMC 2011 Conference: Thursday 07 - Saturday 09 July, 2011
===========================================
The topics to be covered at the Conference are all the core ones in
Sound and Music Computing research, and can be grouped into:
. Processing of sound and music signals
. Understanding and modeling sound and music
. Interfaces for sound and music
. Assisted sound and music creation
================Call for papers==================
SMC 2011 will include paper presentations as both lectures and poster/
demos. We invite submissions examining all the core areas of the Sound
and Music Computing field. All submissions will be peer-reviewed
according to their novelty, technical content, presentation, and
contribution to the overall balance of topics represented at the
conference. Paper submissions should have a maximum of 8 pages
including figures and references, and a length of 6 pages is strongly
encouraged. Accepted papers will be designated to be presented either
as posters/demos or as lectures. More details are available at
http://smc2011.smcnetwork.org/call_for_participation.htm
===========================================
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Insert a SMC2011 banner in your blog or web page
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and link it to http://smc2011.smcnetwork.org/
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(linked from http://smc2011.smcnetwork.org/news.htm)
Hi,
In a bit of a time crunch. Can anyone tell me how to do this properly?
I would like to have a threaded timer to run "cmd" after 5 seconds.
However cmd is normally triggered like this:
os.system(cmd)
But there seems to be an issue with calling os.system(cmd) from
subprocess.popen.
==========================
def do_popen(self, *args):
subprocess.Popen(args[0], shell=True)
def other function
cmd = 'spd-say -t female2 "' + audioText + '"'
args = shlex.split(cmd)
# Add 5 second delay for first view to allow existing speech processes to
finish
print "do_speech: ",delay
if delay:
print "do_speech: delayed start"
t = threading.Timer(5.0, self.do_popen(cmd))
t.start()
else :
print "do_speech: immediate start"
self.do_popen(cmd)
======================
FYI, it is for an accessibility wizard that Daniel and I have been working
on.
Cheers.
--
Patrick Shirkey
Boost Hardware Ltd.
"ZPE is not about creating something from nothing: It is about using the
zero point of a wave as a means to transform other forms of potential
energy like magnetic flux, heat, or particle spin into usable energy in
such a way that entropy appears to be reversed."
Hi,
I have some interesting ongoing P/T contractual work for a competent
perl/web dev who can assist me for the next couple of months.
If you are interested and available to start immediately please contact me
off list with your rate.
FYI, you'll be working online with me so there shouldn't be any surprises ;-)
Cheers.
--
Patrick Shirkey
Boost Hardware Ltd.
Hi there!
My laptop's USB ports are busted, probably a combination of them not
being top quality in the first place and my Edirol UA-25 USB audio
interface occasionally draining a hefty amount of current to power up
a couple of large diaphragm mikes.
First I tried adding a 2-USB ports PCMCIA card, but PCMCIA (or pccard
or cardbus or however the heck it is called nowadays) won't supply the
necessary juice, so if you need more than 100 mA you must use an extra
cable to suck the remaining amperage from one of the no longer
existing motherboard's USB ports. Alas, therefore not a complete
solution for the fried port blues.
So now I am throwing a powered USB hub in. As long as I keep it to
ALSA usage there is no problem: I can record and playback with, for
instance, Audacity using the ALSA backend. But anytime I try to launch
jackd the daemon fails and I get this in /var/log/messages:
kernel: ALSA sound/usb/usbaudio.c:882: cannot submit datapipe for urb
0, error -28: not enough bandwidth
I've tried different jackd buffer configurations to no avail. Anyone
(I guess that means Clemens) has any idea about whether I can work
around this?
Thanks in advance for any insight. Cheers,
L
PS: Yup, I have forsaken any hope of anything resembling low latency
with this setup, at least whenever I need phantom. The laptop is
5-year old, but still does the job and, above all, has a matte LCD
screen. Nuff said. I am cringing in advance at the unavoidable moment
entropy will force me to watch my ugly mug reflection superimposed
over my code. The combined effect can be too much to bear.
On Sat, Oct 9, 2010 at 2:55 AM, Geoff Beasley
<geoff(a)laughingboyrecords.com> wrote:
> until Clemens chimes in... is it your own kernel Luis ? looks like usb2
> device in usb1 port maybe? check your usb config in the kernel perhaps
Hi, Geoff, thanks for answering. Clemens is perhaps the ultimate USB
audio guru, but everyone else's experience in this issue is of course
valuable and appreciated.
I tried this on Ubuntu and Fedora Core stock kernels (no -rt patch).
On Ubuntu jackd simply failed with no clue about was going on;
Fedora's kernel at least supplied the message I quoted in the top
message (probably it has activated some debugging flag that Ubuntu's
doesn't.)
If it helps some (probably not, since all the hubs in the market will
be some kind of wrapper or another around the same Taiwanese chip),
the hub model is Manhattan 160612:
http://komputercenter.com/usb-gadgets-c-7/hub-usb-2-0-manhattan-160612-p-16
Has someone else here managed to successfully run jack over USB audio
through an external hub? It is probably not the best setup out there
latency-wise (how long does it actually take for a USB frame to pass
across a hub, anyway?), but may be worth considering if low latency is
not critical, providing in return integrated USB port protection and
perhaps some degree of power supply noise isolation (or yet another
noise source, you never know, but I'd hazard the guess that anything
that separates audio equipment from LCD inverters in laptops should be
a good thing.)
Cheers,
L
Hello all,
Two new Jack apps are available at the usual place:
Zita-at1: Autotuner.
Zita-rev1: Stereo or Ambisonic reverb.
More info at <http://www.kokkinizita.net/linuxaudio>
Enjoy !
--
FA
There are three of them, and Alleline.
On Mon, Oct 11, 2010 at 01:37:16AM +0400, Oleg Ivanenko wrote:
> Your tools as always like katana -- lightweight, visually simple, and precise.
:-) But not intended to slice off someone's head :-)
Ciao,
--
FA
There are three of them, and Alleline.
On Mon, Oct 11, 2010 at 10:29:57PM +0200, Jostein Chr. Andersen wrote:
> > Zita-rev1: Stereo or Ambisonic reverb.
>
> I tried it on a snare and did a test on a whole drum set, damn it sounds good,
> it to good to be true! I'm seldom satisfied with the reverbs I hear, but this
> is amazing. The controls works exactly as expected should when I tweak them:
> natural and responsive.
I didn't expect it to be used on drums, but if it sounds OK, why not !
> This two new additions fits perfect to what I consider to be the
> philosophy of your eq-channel strip you kindly sent me: Great, musically
> natural sound that does precise what I want and make my trust my ears again.
Never let technology get in the way of your ears !!
Ciao,
--
FA
There are three of them, and Alleline.
