26 Dec
2002
26 Dec
'02
11:47 p.m.
hello,
I have jack installed and working now. So, now I'm trying to get
AlsaModularSynth compiled and running. Has anyone else accomplished this
in debian stable (woody)?
I installed libqt3-mt (along w/everything it depended upon), fftw-dev,
fftw2, sfftw-dev, sfftw2 and ladspa-sdk to get ladspa.h. I've tried to
edit the top of make_ams to agree with the location of the qt3 libs, bin
and include directories on my system as best as I could figure ... but
I'm not sure I got it right:
QT_LIB_DIR=/usr/lib/qt3/plugins/styles
QT_BIN_DIR=/usr/share/qt/bin
QT_INCLUDE_DIR=/usr/include/qt
it seems to compile OK when I do:
make -f make_ams
though there are a lot of warnings about comparing signed to unsigned
and other warnings that flew by. Are these benign?
Anyway. I end up with an executable ams. When I run ./ams I get this:
./ams: error while loading shared libraries: libjack.so.0: cannot open
shared object file: No such file or directory
I have that in /usr/local/lib/libjack.so.0 so creating this link appears
to help:
box1:/usr/lib# ln -s /usr/local/lib/libjack.so.0 libjack.so.0
Is that the correct sollution?
but, now:
box1:/home/eric/audio_code/ams-1.5.5# ./ams
ams: cannot connect to X server
I assume this is because X is running as me (eric) and not as root. I'll
try getting out of X and starting it as root as soon as I finish writing
this message. But, is there a way to let root connect to the X server
that's running as eric?
I was sort of ok (well, not really, but I'm giving it a try) with the
idea of running jackd and its clients as root ... but, running X as
root, too? that makes me more nervous, somehow... maybe I shouldn't be
nervous about that ... I'm not sure.
anyway. i'll give it a shot with a root X session.
I'm thinking that maybe I should patch and recompile the kernel and
recompile jack to enable capabilities so I don't have to run as root.
Do those of you running jackd as root also run your X session as root?
Thanks for listening,
Eric Rz.
PS If all of this has been covered before and my questions are annoying
you, feel free to send me to the archives. I try to follow jackit-devel,
but most of it seemed to go over my head before I actually started to
try it. So, re-reading the past couple months would probably do me some
good now that I have the real thing in front of me. -edrz
27 Dec
27 Dec
12:03 a.m.
New subject: [linux-audio-user] Re: ams, jackd & X as root? on debian
Eric Dantan Rzewnicki wrote:
anyway. i'll give it a shot with a root X session.
hmm... that didn't work. No errors regarding X this time. But ams exited
with a Segmentation Fault.
I guess I have something else wrong with my ams.
I forgot to mention the ams version in my previous mail...
ams-1.5.5
-Eric Rz.
6:37 a.m.
On Thu, Dec 26, 2002 at 10:41:32 -0500, Eric Dantan Rzewnicki wrote:
Anyway. I end up with an executable ams. When I run
./ams I get this:
./ams: error while loading shared libraries: libjack.so.0: cannot open
shared object file: No such file or directory
I have that in /usr/local/lib/libjack.so.0 so creating this link appears
to help:
box1:/usr/lib# ln -s /usr/local/lib/libjack.so.0 libjack.so.0
Is that the correct sollution?
No, delete that link then try running ldconfig as root, if that doesn't
work, check your /etc/ld.so.conf includes /usr/local/lib.
box1:/home/eric/audio_code/ams-1.5.5# ./ams
ams: cannot connect to X server
I assume this is because X is running as me (eric) and not as root. I'll
try getting out of X and starting it as root as soon as I finish writing
this message. But, is there a way to let root connect to the X server
that's running as eric?
Run "xhost + localhost" as you to allow root to connect, there is a cleaner
way involving cookies, but I cant remeber it. I'm supprised your
distribution doesn't set that up automatically.
Do those of you running jackd as root also run your X
session as root?
No.
- Steve
12:24 p.m.
Eric, Steve,
There is an option in /etc/X11/xdm-config (if you are running xdm, kdm,
gdm) that will turn off X authorization. It is
DisplayManager._0.authorize: true
change this to false and anyone can connect. It's a bad idea though.
Doing the xhost + localhost is pretty safe but there are better
solutions. Next option - as you (local user) enter :
xauth list
This gives you a list of cookies that you can add as root to allow you
to use X. You just cut and paste the :0 and /unix cookies and do an
xauth add as root. Cleaner, yes, but it's a major pain. I'm assuming
that you are doing an su or su - to log in as root. The best thing you
can do is, instead of using su, to do ssh -l root localhost. This will
run the root user in a secure shell and will pass all X traffic
encrypted. It will use a proxy display server so there is no
authorization problem. You'll notice that your DISPLAY variable as root
is set to localhost:10.0 or something like that.
I will sometimes run as root (under fvwm2 to minimize latency problems)
but I've been doing UNIX system admin for 15 years so I feel fairly
comfortable with it. The only real danger running as root is that
you'll do something stupid (what we like to call an SOD).
Jan
On Fri, 2002-12-27 at 04:31, Steve Harris wrote:
On Thu, Dec 26, 2002 at 10:41:32 -0500, Eric Dantan
Rzewnicki wrote:
Anyway. I end up with an executable ams. When I
run ./ams I get this:
./ams: error while loading shared libraries: libjack.so.0: cannot open
shared object file: No such file or directory
I have that in /usr/local/lib/libjack.so.0 so creating this link appears
to help:
box1:/usr/lib# ln -s /usr/local/lib/libjack.so.0 libjack.so.0
Is that the correct sollution?
No, delete that link then try running ldconfig as root, if that doesn't
work, check your /etc/ld.so.conf includes /usr/local/lib.
box1:/home/eric/audio_code/ams-1.5.5# ./ams
ams: cannot connect to X server
I assume this is because X is running as me (eric) and not as root. I'll
try getting out of X and starting it as root as soon as I finish writing
this message. But, is there a way to let root connect to the X server
that's running as eric?
Run "xhost + localhost" as you to allow root to connect, there is a cleaner
way involving cookies, but I cant remeber it. I'm supprised your
distribution doesn't set that up automatically.
Do those of you running jackd as root also run
your X session as root?
No.
- Steve 
2:18 p.m.
New subject: [Jackit-devel] Re: [linux-audio-user] ams, jackd & X as root? on debian
Jan, Steve,
Thank you both for jogging[1] my memory on xauth, MIT-MAGIC-COOKIEs and
environment variables.
For running audio apps, I'm not sure I want the extra overhead of an ssh
session. The simplest solution seems to be to su, rather than su -, to
get to root. This way root inherits the XAUTHORITY and DISPLAY
environment variables from my user session and can then run X client
apps with no further config changes.[2] I can now start jackd as root and
then start ams -j. Sorry I didn't think of this earlier. :-\
Adding /usr/local/lib to /etc/ld.so.conf and running ldconfig as Steve
suggested allows ams to find libjack.so.0 (I really should have
remembered that piece, too).
Now that I have it running I'll go finish reading the ams documentation
and figure out how to use it. :)
Thank for your help,
Eric Rz.
[1]
"Fezzick, jog his memory"
<THUNK!>
< ..crumple.. >
"I'm sorry, Inigo. I didn't mean to jog him so hard."
...
"Inigo?"
[2]
The Remote-X-Apps mini-HOWTO gives an explanation of what's going on and
some slightly more complex (and perhaps more complete) solutions, if
anyone is interested.
http://www.tldp.org/HOWTO/mini/Remote-X-Apps.html
6. Telling the Server
http://www.tldp.org/HOWTO/mini/Remote-X-Apps-6.html
7. X Applications from Another User-id
http://www.tldp.org/HOWTO/mini/Remote-X-Apps-7.html
Paticularly section 7.2 "Client User Is Root"
28 Dec
28 Dec
10:53 p.m.
New subject: [linux-audio-user] ams segmentation fault
Eric Dantan Rzewnicki wrote:
I can now start jackd as root and
then start ams -j. Sorry I didn't think of this earlier. :-\
Adding /usr/local/lib to /etc/ld.so.conf and running ldconfig as Steve
suggested allows ams to find libjack.so.0 (I really should have
remembered that piece, too).
Now that I have it running I'll go finish reading the ams documentation
and figure out how to use it. :)
hmm... I perhaps spoke too soon.
I had ams working yesterday on one box (at the office)... But, now I
can't seem to get it working at home. It seems to compile fine, but when
i try to start it:
box1:/home/eric/audio_code/ams-1.5.5# ./ams
Segmentation fault
box1:/home/eric/audio_code/ams-1.5.5# ./ams -j
Segmentation fault
It doesn't matter if jackd is running or not. Either way it seg
faults...
What could cause this?
What information should I provide to help sort this out?
Thanks,
Eric Rz.
11 Feb
11 Feb
3:38 p.m.
New subject: [linux-audio-user] why does files created on mac gets played in half the speed?
excuse me but still cannot solve this problem
can someone give me a hint?
the problem is this
all the .mp3 files created @ MacOS9
becomes half the speed when played by
mpg123 @ slackware
things are the same with
.wav files played by doing
play made(a)mac.wav
my
GatewaySOLO(PentiumMMX150Mhz+48MB-RAM) has
ESS's ES1888 on it
and recently started making sounds
via
modprobe sb
files recorded with
rec newthingviamic.au
plays ok
even though the quality of it is no good
am a prompt mode only csounder
and wanna keep the machine that way
but
if i switch to mandrake
will this aspect be easily solved?
BUYO-BUYO-IGOR------------------
http://buyobuyo.isgenius.com
"SaRiGaMa's Oil Vending Orchestra"
http://oil.isonfire.com
4:10 p.m.
New subject: [linux-audio-user] why does files created on mac gets played in half the speed?
On Wed, 12 Feb 2003 04:31:39 +0900
micro-people <imuzik(a)geocities.co.jp> wrote:
excuse me but still cannot solve this problem
can someone give me a hint?
the problem is this
all the .mp3 files created @ MacOS9
becomes half the speed when played by
mpg123 @ slackware
things are the same with
.wav files played by doing
play made(a)mac.wav
my
GatewaySOLO(PentiumMMX150Mhz+48MB-RAM) has
ESS's ES1888 on it
and recently started making sounds
via
modprobe sb
files recorded with
rec newthingviamic.au
plays ok
even though the quality of it is no good
am a prompt mode only csounder
and wanna keep the machine that way
but
if i switch to mandrake
will this aspect be easily solved?
This is a guess and may be wholly wrong. It sounds to me as if your Mac is
writing a stereo mp3, but flagging it as mono (possibly failing to insert
a flag), and then your Linux box is playing it back as a mono file so each
frame becomes 2 hence it goes half speed.
James
--
James Tappin, O__ "I forget the punishment for using
james(a)tappin.me.uk -- \/` Microsoft --- Something lingering
http://www.tappin.me.uk/ with data loss in it I fancy"
10:57 p.m.
New subject: [linux-audio-user] Re:why does files created on mac gets played inhalf the speed?
thanx 4 reply
am usually wrong but well..
mpg123 made(a)mac.mp3
shows the info of the file
and it says it is stereo
it is also the same with that of
the same file played by
the windows version of mpg123
this win version plays it ok
oh
but mpg123 also shows
that there is a junk at the biginning of the file
made(a)mac.wav
is also ok at windows
but half the speed at slackware
btw
workbone plays the cd ok
mmm
all the .mp3
files created @ MacOS9
becomes half the speed when played by
mpg123 @ slackware
things are the same with
.wav files played by doing
play made(a)mac.wav
my
GatewaySOLO(PentiumMMX150Mhz+48MB-RAM) has
ESS's ES1888 on it
and recently started making sounds
via
modprobe sb
files recorded with
rec newthingviamic.au
plays ok
even though the quality of it is no good
am a prompt mode only csounder
and wanna keep the machine that way
but
if i switch to mandrake
will this aspect be easily solved?
This is a guess and may be wholly wrong. It sounds to me as if your Mac is
writing a stereo mp3, but flagging it as mono (possibly failing to insert
a flag), and then your Linux box is playing it back as a mono file so each
frame becomes 2 hence it goes half speed. 
8 Feb
8 Feb
1:39 a.m.
New subject: [linux-audio-user] Fedora with Alsa drivers and audio applications
I want to report that my linux box is working fine with Fedora Core 1.
I had problems with Fedora included audio drivers.
I installed Alsa drivers 1.0.2. Now more than one application can send
output to /dev/dsp at the same time. I enabled artsd as sound server.
It is working fine so far.
I have installed xmms with MP3 support. I downloaded ZINF today . Very
nice!. I had problems with Alsa libs when compiling Zinf source code.
So, I downloaded Zinf rpms files for RH 9 and now Zinf is working fine
on Fedora.
I also had to use mpg123 I previously compiled for RH9. It also
reported conflicts with alsa libs when trying to compile under Fedora.
I am also testing lame. It is working fine to create MP3 files, but it
is not working when trying to convert MP3 to WAV files. So, I am using
ogg decoders and encoders to do that.
gnome-cd and cdplayer are working fine also. Grip is also doing a good
work as well as cdrecord.
I have a TV card with BT848 chip. Video works fine but there is no audio.
--
This Message is sent from my Red Hat Fedora Core 1 Linux server
.-. Gustavo Zamorano S.
Registered Linux user number 320898
Machine Registration number 205692
(at http://counter.li.org/)
8:53 p.m.
New subject: [linux-audio-user] Re: Fedora with Alsa drivers and audio applications #2
Hello!
I want to report now that my bttv848 chip based TV card is working fine now.
I loaded the bttv module with card and tuner parametres pointing to my
card's model and chip. Now I can see and hear cable TV channels as well
as radio stations. I downloaded xawtv 3.90.
GZS
--
This Message is sent from my Red Hat Fedora Core 1 Linux server
.-. Gustavo Zamorano S.
.-. |
`--.____.--' mailto:gzsuniq@cableonda.net
Registered Linux user number 320898
Machine Registration number 205692
(at http://counter.li.org/)
7936
days inactive
8345
days old
linux-audio-user@lists.linuxaudio.org
10 comments
7 participants
participants (7)
-
Eric Dantan Rzewnicki -
Eric Dantan Rzewnicki -
Gustavo Zamorano S. -
James Tappin -
Jan "Evil Twin" Depner -
micro-people -
Steve Harris