Message: 21
Date: Tue, 10 Jul 2012 23:57:52 +0200
From: Ralf Mardorf
> > I upgraded my system on the recommendation of this mailing list,
> > because of a kernel bug that prevents four channel output on my device
> > in 10.04. I need four channels for a concert in a few months. So it's
> > either upgrade or cancel the concert.
>
> Don't upgrade during a production and before doing an upgrade, backup
> your stable Linux.
Yes, what you say is correct -- which is why I've chosen a time when I am NOT in a critical production cycle to do the upgrade!
I encountered the problem with four channel output, asked about it other places online and eventually here, and learned that it was due to a kernel bug in the Ubuntu version that I had been running. At that time, I was in the middle of a busy semester and couldn't afford downtime, so I waited until my semester break -- early in the semester break. The concert is not until late September or early October, just shy of three months.
Point being, I didn't do this upgrade on the spur of the moment. I did it to solve a specific problem, I timed it to allow plenty of lead time before the show, and I even installed 12.04 to a live USB stick to test before committing my HD to the upgrade.
Next... the new thread about what I really need. Maybe let's close this thread. Issues with jackdbus in 12.04 have been identified and seem to be the culprit.
James
--
James Harkins /// dewdrop world
jamshark70(a)dewdrop-world.net
http://www.dewdrop-world.net
"Come said the Muse,
Sing me a song no poet has yet chanted,
Sing me the universal." -- Whitman
blog: http://www.dewdrop-world.net/words
audio clips: http://www.dewdrop-world.net/audio
more audio: http://soundcloud.com/dewdrop_world/tracks
OK... I am having a really strange problem with qjackctl. Ubuntu 12.04, Jack 1.9.8, qjackctl 0.3.8.
I've chosen my USB audio interface for capture and playback -- .jackdrc looks like this:
/usr/bin/jackd -P70 -dalsa -r44100 -p1024 -n2 -D -Chw:1 -Phw:1,0
But, when qjackctl starts jack, it uses -Chw:0 -Phw:0.
What's even more strange is that it was working yesterday. Today, no luck. No matter what I choose for the capture and playback devices, it always uses the laptop's built-in hardware. But, if I run the jackd command in the terminal, it DOES use the right device. So it seems simply that qjackctl is issuing the wrong command.
As another test, I changed the hardware buffer size, but that is used correctly. So it's only the devices.
I've heard of other problems with qjackctl vs. jackdbus -- is qjackctl the wrong tool? What is the right tool?
Sorry if this is too basic a question. jackaudio.org is, unfortunately, no help at all: I would have thought the page about "Configuring and running a JACK server" would explain:
http://trac.jackaudio.org/wiki/WalkThrough/User/GettingStarted
... but it's empty.
Help...?
James
--
James Harkins /// dewdrop world
jamshark70(a)dewdrop-world.net
http://www.dewdrop-world.net
"Come said the Muse,
Sing me a song no poet has yet chanted,
Sing me the universal." -- Whitman
blog: http://www.dewdrop-world.net/words
audio clips: http://www.dewdrop-world.net/audio
more audio: http://soundcloud.com/dewdrop_world/tracks
On 07/10/2012 11:21 AM, S. Massy wrote:
> On Tue, Jul 10, 2012 at 08:13:44AM -0400, Dave Phillips wrote:
>> Greetings,
>>
>> Last week was really amazing here in Findlay OH USA. We suffered
>> through an incredible storm with 90 mph winds, then had no power and
>> 100+ degree (F) heat every day for the next seven days. I have an
>> entirely new appreciation for 1) the people who went through Katrina
>> and 2) the humble electron.
>>
>> Anyway, I found some blues songs relating the effects of floods -
>> Charley Patton's High Water Rising and John Lee Hooker's Tupelo are
>> two great examples - and I found one that at least mentioned
> Don't forget Texas Flood!
Added to the unofficial list of Disaster Blues Classics. Thanks for the
reminder !
The original is good, but Stevie Ray tore it up. :)
> No Blues tune relating to heat comes to mind,
> but there's always "Too Darn Hot" by Cole Porter. :)
>
>
It suits. However, at last we're experiencing a cooling trend to the
mere mid-80s. :-/
By the weekend we might be back into triple digits.
Best,
dp
Lisalo - Linux Sampler Loader - is a command line program that loads entire directories of sample files, a single .sfz file or takes instructions from a meta .lsl file with relative paths to samples.
Now you can quickly and easily load sampled instruments without even starting a GUI.
This is release 1.2, grab it here, no installation required (but you can symlink it to /usr/bin if you want)
git clone git://github.com/nilsgey/Lisalo.git
[New Features]
lsl mode (see example.lsl)
-Choose an instrument index when loading gig or sf2 samples
-Load a directory with waves and oggs as one instrument.
-Choose a name for your JACK port
commandline mode (see -h or cat README)
-option to specify a name for your JACK port.
-directly load a single sfz file instead of a whole directory or a meta lsl file (auto detection by file extension)
-this sfz file can be a temp file created by Lisalos sidekick:
[New Tool - Sfz Generator]
Creates temporary sfz files. Point to a directory of wave or ogg files and you'll get the filename of an .sfz file in /tmp as return value.
In case you want to use this with Lisalo use the following syntax:
lisalo "$(lisalosfzgenerator.py /path/to/wavedir)"
This has several optional options such as: Start mapping from a key number (default 60 - middle c), only map the white keys, load sample dir recursively (don't point at your /home/samples or at an Ardour project dir!)
[Contact]
https://github.com/nilsgey/Lisalo
info(a)laborejo.org
irc.freenode.org #laborejo
[Dependencies]
Python3 (Developed and tested under 3.2.2)
Linuxsampler (no GUI required)
Feedback and idle chatting are welcome!
Nils
> On 3 July 2012 19:05, Ralf Mardorf <ralf.mardorf at alice-
> > For "musicians" with an academical background it's very important,
> for
> > people who are simply musicians this kind of theory is completely
> > unimportant.
>
> thanks for speaking on behalf of all of us ralf. or perhaps on the
> other hand, we're grown up enough to decide for ourselves?
>
> --
> robin
>
> http://fu.ac.nz - Auckland's Free University
I'm not anti academies.
All I wanted to say is: "Don't care too much about how chords are named
and why they are named, the way they are named. Just take care that the
emotion that should be transported by your music, is transported by your
music."
IIRC another reply was regarding to "it's better to know how to name
chords, than to say 'put one finger to that fret and another finger to
this fret'" Full ACK, but in the beginning nobody is able to know that
and after a while everybody is able to know what to do, we neither need
to name a chord, nor to say where to put the fingers. Just for the
record, to know a chord's name doesn't protect to say "put one finger
here and another finger there", there are 3 inversions, for three notes
and for string instruments such as a guitar, we have additional
extensions, such as two strings should or shouldn't play the same note.
One and the same named chord could cause different emotions.
Is it an advantage to be able to see on which key, which fret a finger
should be? For beginners it usually is, but after a while nobody does
visually control where the fingers should be. IMO for musical theory
it's similar. Btw. IMO music is similar to sex and far away from
astrophysics. Academical rules for astrophysics are good, but I suspect
nobody is using books to get knowledge how to have sex.
Does anybody seriously studies tantra?
;)
Just 2 Cents, since the topic already is solved.
> Date: Mon, 9 Jul 2012 15:05:07 -0400
> From: Don Strayer <dstrayer+lau(a)sadt.com>
> To: linux-audio-user(a)lists.linuxaudio.org
> Subject: [LAU] Xfce, jack, and GStreamer
> Message-ID: <20120709190508.469CA61D8(a)monet.sadt.com>
> Content-Type: text/plain; charset=US-ASCII
>
> I'm running Debian Sid and have just installed Xfce. I'm having trouble
> getting Xfce's audible alerts to work. As far as I can see, they're the
> only sounds on the system that want to go through GStreamer.
<snip>
First off, for the record, I've dug into the jack/gstreamer thing, but
I'm by far NOT an expert.
The way I understand it, gstreamer by default looks for the jack sink
by name i.e. System-> Capture1 etc. And the connects to it every time
it requires to output sound, then disconnects when it's done. So, when
the source is there, you can, in jack connections, re-direct it to
whatever. But, when gstreamer is done playing sound it disappears,
with it's connections.
I may be over simplifying what may be going on in your case though...
(a side note, I replaced the jack/alsa with zita/alsa connection, both
work, zita is better sound quality)
This is my first post to this list -- thanks in advance for advice. (Actually, I posted this first on the jackit mailing list as it seems to be a jack configuration issue, but it went ignored there for about 2.5 days so I'm trying again here.)
I'm trying to configure Jack 1.9.6 on Ubuntu 10.04 (with real-time kernel) to use all four channels of an M-Audio fast track pro. The class-compliant USB audio driver reads a pair of stereo devices:
card 1: Pro [FastTrack Pro], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Pro [FastTrack Pro], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
I've set up a merged device in .asoundrc and tested directly against alsa, no problem:
1. Play a stereo, 44.1 kHz, 16 bit file to hw:1,0.
2. Play the same file to hw:1,1.
3. Use SuperCollider to make a four channel version of the same file, and play this to the merged device.
All of these tests are successful -- so I think the .asoundrc configuration is correct.
Jack can use either of the stereo devices -- hw:1,0 or hw:1,1 -- for playback with no problem. I've been using that successfully for almost two years now.
But... (-Chw:1,1 is for the FTPro's stereo input)
/usr/bin/jackd -S -P60 -dalsa -r44100 -p1024 -n2 -D -Chw:1,1 -Pft4 -s
... gives me:
~~~
JACK server starting in realtime mode with priority 60
audio_reservation_init
Acquire audio card Audio1
creating alsa driver ...
ft4|hw:1,1|1024|2|44100|0|0|nomon|swmeter|soft-mode|32bit
Using ALSA driver USB-Audio running on card 1 - M-Audio FastTrack Pro at usb-0000:00:1d.0-1.5, full speed
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
ALSA: could not start playback (Broken pipe)
Cannot start driver
JackServer::Start() failed with -1
Released audio card Audio1
audio_reservation_finish
Failed to start server
~~~
Any ideas what I'm missing?
Thanks,
hjh
--
James Harkins /// dewdrop world
jamshark70(a)dewdrop-world.net
http://www.dewdrop-world.net
"Come said the Muse,
Sing me a song no poet has yet chanted,
Sing me the universal." -- Whitman
blog: http://www.dewdrop-world.net/words
audio clips: http://www.dewdrop-world.net/audio
more audio: http://soundcloud.com/dewdrop_world/tracks
I'm running Debian Sid and have just installed Xfce. I'm having trouble
getting Xfce's audible alerts to work. As far as I can see, they're the
only sounds on the system that want to go through GStreamer.
Sound is through jackd2 and FFADO to a Saffire PRO 24. Jack is set up as
described in
http://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge
(That website is currently unavailable. It would sure be nice to have
another copy of that page for reference. A copy of the .asoundrc is
here: http://pastebin.com/1WLtqeJ1 )
Programs that speak directly to jack work. Sound in Flash videos such as
Youtube works. "speaker-test -c2" works.
"gconftool-2 -R /system/gstreamer/0.10/default" shows:
chataudiosink = jackaudiosink buffer-time=2000000
audiosink = jackaudiosink buffer-time=2000000
videosrc = v4l2src
visualization = goom
audiosink_description = Default
musicaudiosink = jackaudiosink buffer-time=2000000
chataudiosink_description = Default
audiosrc_description = Default
audiosrc = jackaudiosrc
musicaudiosink_description = Default
"gst-launch audiotestsrc ! audioconvert ! audioresample ! jackaudiosink"
produces a tone in the left speaker.
So does
"gst-launch audiotestsrc ! audioconvert ! audioresample ! autoaudiosink"
When I run xfce4-mixer, I get an error message:
"GStreamer was unable to detect any sound devices. Some sound system
specific GStreamer packages may be missing. It may also be a permissions
problem."
When I try to get an audible alert from, for example, the Orage calendar
program, there is just silence.
What am I missing? Or am I barking up the wrong tree?
Over the past few months, I have been deep into learning Clojure, and have been rather busy doing contract projects over the past year, etc, and not paying much attention to latest news.
But then I came across this:
http://mjg59.dreamwidth.org/12368.html
Seriously? I remember the brouhaha over "Trusted Computing" about a decade ago-- even once found myself with a secondhand ThinkPad that had some kind of bootloader encryption chip built in (and unused)--, but I thought that whole idea died the death it so richly deserved.
Is it really back? Am I reading this right? All operating systems to run on any PC must be signed by MSFT? Certified machines will refuse to boot any loader that isn't MSFT-approved?
I'm not panicking, because there will probably always be enough CPU's and Mobo's available from China without all this corporate-ware installed. And if phones can be jailbroken then PCs can too.
But, still, WTF? Really?
-ken
Hi all,
This is a small bugfix release of the TAP-plugins LADSPA plugin
collection. The only plugin affected is the Scaling Limiter. The
problem was that with some kinds of audio (esp. low freq. sine waves)
the plugin produced sharp peaks / level jumps in the output.
Thanks to Taku Yamamoto for providing me with an excellent patch.
Downloads etc: http://tap-plugins.sf.net
Enjoy!
Tom
