Hi there!
This is a somewhat special question which has not so much to do with
linux-audio stuff - but as there are quite a few people here dealing
with electrics / electronics and some of them even earn their money as
event technicians you might get in touch with special measurement
equipment like a VDE 0701/0702-tester.
As you might know, most manufacturers of those devices offer software
to ease the administration of your testing pool, but most of them still
life in the 90s and make them windows only.
So here I am, asking you if you are using or knowing a VDE 0701/0702
-testing device manufacturer that is modern enough to master the (not
so secret) secrets of cross-platform software engineering or opened
their devices and protocols in that way, that I can easily access them
with linux / open source tools.
Greets!
Mitsch
I have hesitated for weeks to post here with such a basic and possibly
stupid problem, but I am at my wits end with this.
I run Ubuntu 12.04 on a desktop computer and also on a small notebook.
Sound is fine on both of them, and I can play midi files through
tiMidity with no problem.
I want to use a midi-capable electric piano as an input device, and I
reckoned the first thing to do was to get some suitable software and
make sure I could play a midi file from a midi editor.
I have QjackCtl, Qtractor (I also have Muse) and Qsynth installed. I
have spent weeks, on and off, trying to solve the basic problem of
getting some sound from Qtractor (or Muse), but although both the editor
and QjackCtl show that an imported midi file is actually being played, I
get no sound whatsoever. This is true for both computers, even though
their hardware is pretty different. As I said earlier, the sound on
both computers is fine in other contexts, so it is almost certainly some
fundamental error on my part, but I have no idea what is wrong. I have
tried all sorts of different sets of connections in QjackCtl, but never
heard a note yet!
Having read various posts in the forum archive, I tried running
jack-metro. QjackCtl shows that the metronome is running, but
connecting the metronome to the system outputs produces no sound, so the
problem seems to be at this level.
If anyone feels they have the patience to try to point me in the right
direction, I shall be very grateful indeed.
David
Hello,
This one is a laid back journey of some 10 minutes, developing slowly
and fading away, whitewash against the shore. This is a one time
recording as I do not expect re-working this one, apart from this
mixdown here. It simply happened, during a few hours last year.
Listening to it at this time of the year for mixing it down does have
an autumnal feeling. The theme kind of longs warmly for things summer
past. Enjoy.
https://soundcloud.com/nominal6/c2014-26
Cheers.
Details:
Recorded using Ardour 3. Plugins are Calf 5-band EQ and Reverb.
Master bus uses Robin Gareus' 4-band parametric EQ and Steve Harris'
Fast Lookahead Limiter.
The Sonatina free sample library provides cymbals, concert harp, and
solo violin. Cymbals were triggered using an Alesis Control Pad and
regular drum sticks.
On the instrument front, the accoustic guitar is a Shiraki 6
strings. Whereas the previous piece c2015-15 did not have any bass
instrument, here there are two. Soloing bass is a Tanglewood
accoustic bass guitar, pulsating bass is made of both M-Audio pro88
accoustic bass and Korg Microstation 'bad boy', which also provides
some 'Night Electric Piano'. The Korg Wavedrum playing provides tabla
variations and kick/snare, played by hand and fed through a
passive direct box, with a bit of Steve Harris' Multiband EQ applied
to the tablas, and Calf Limiter, 5-band EQ and Reverb to the
kick/snare. Pads are standard warmpads from M-Audio pro88. Intro bird
noise is provided by the free Reaktor5 Space Drone.
Hi,
i want to connect 2 computers (Linux Mint + KXStudio) and use the
JackTransport on one (the master) to guide the other (the slave)
- On the master i have jack2 running and Claudia.
i run in terminal: jack_netsource -H 192.168.1.128 <-- = address of master
The reply = Not Connected and i see in Claudia a small window appear called
"NetJack". It has 2 inputs, 2 outputs and a midi in and out. And, yes, they
are not connected to anything.
- On the slave i have jack2 running and Claudia.
i run in terminal: jack_netsource -s 192.168.1.129 <-- = address of slave
This is the output:
menno@huiskamer:~$ jack_netsource -s 192.168.1.129
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping
unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping
unlock
jack_client_open() failed, status = 0x11
Is the JACK server running ?
Is this the way to go to connect computers?
--
View this message in context: http://linux-audio.4202.n7.nabble.com/how-to-connect-computers-with-Netone-…
Sent from the linux-audio-user mailing list archive at Nabble.com.
Here's one I made recently as a very first attempt in trying to mix
down all tracks in a cohesive manner. All comments welcomed, technical
and even on the tune itself !
https://soundcloud.com/nominal6/c2015-15
Cheers.
Hi,
After a few refactorings its finally here. Super-threaded audio tree computing
for GSequencer v0.6.8
http://gsequencer.org/download.html
The config file located in $(HOME)/.gsequencer/ags.conf should look
like following:
[generic]
builtin-theme=false
autosave-thread=false
segmentation=4/4
[thread]
model=super-threaded
super-threaded-scope=channel
lock-global=ags-thread
lock-parent=ags-recycling-thread
[device]
samplerate=44100
buffer-size=940
pcm-channels=2
dsp-channels=2
alsa-handle=hw:0,0
[recall]
auto-sense=true
cheers,
Joël
Saw this announced on the Linux Musicians site, thought it may be of
interest to some folks here. (Sorry if it's a repost).
https://www.coursera.org/course/audio
Instructors are professors Xavier Serra and Julius O. Smith III, two
very well-known DSP worthies.
Course syllabus :
Week 1: Introduction; basic mathematics
Week 2: Discrete Fourier transform
Week 3: Fourier transform properties
Week 4: Short-time Fourier transform
Week 5: Sinusoidal model
Week 6: Harmonic model
Week 7: Sinusoidal plus residual modeling
Week 8: Sound transformations
Week 9: Sound/music description
Week 10: Concluding topics; beyond audio signal processing
Best,
dp
We are pleased to announce the release of Yoshimi V1.3.6
Principal features for this release are the introduction of controls from the
command line, covering many setup options, as well as extensive
root/bank/instrument management. Some of these new controls are also available
to MIDI via new NRPNs.
Vector control has been extended so that there are four independent 'features'
that each axis can control,
ALSA audio has had a makeover, and will now work at your sound card's best bit
depth - not just 16 bit (as it used to be).
In the 'examples' directory there is a complete song set, 'OutThere.mid' and
'OutThere.xmz'. Together these produce a fairly complex 12 part tune that makes
Yoshimi work quite hard.
More information on these and other features are in the 'doc' directory.
Yoshimi source code can be obtained either from:
http://sourceforge.net/projects/yoshimi
or:
https://github.com/Yoshimi/yoshimi
Our mailing list is now:
http://www.freelists.org/list/yoshimi
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
Hi list! I'm about to purchase a laptop with usb3 only ports (no usb2).
I want to use it for live performances, with a full RT-preemt kernel.
Has someone already test NI Komplete Audio 6 with USB3? Are there known
issues?
Thanks!
Nicola
Hi list,
I'm writing some signal processing algorithm for real time processing
that has to run on a 8 kHz sampling frequency embedded device.
My code is in C and I wrote a simple jack client for testing my algorithms.
For now, I'm using a sample frequency of 44.1 kHz but I want to test the
behaviour of my code at 8 kHz.
With my sound card, is impossible to set jack to run at 8 kHz.
It is possible in some way, to fake the 8 kHz sampling frequency (for
example using plugins?).
I've seen the Steve Harris Decimator, but it is not designed to run in
real time. I've tried to put in jack-rack a low-pass (antialias) filter
followed by the SH Decimator, but the result is (as expected) a 44.1 kHz
signal with reduced bandwith and some "aliasing" (I don't think that
what I get is alias -by definition- but some other artifacts).
What can I do to test my algorithm at 8 kHz in realtime using jack?
Thank you all :)
--
a.