tom(a)trellis.ch wrote:
> -> the "Couldn't open device" looks suspicious
I guess you are not root.
> bmAttributes 37
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Implicit feedback Data
>> I guess this is one of the devices that use implicit feedback
>> synchronization, which is very buggy in the current driver. As far as
>> I know, only Jack works with these devices.
>
> Huh? How could that work with JACK if it doesn't with ALSA?
Jack uses ALSA; that driver code was tested only with Jack, and
expects the playback and capture streams to be opened at the same
time.
> Btw, this is what i get when trying to start JACK with it:
>
> ATTENTION: The capture device "hw:0,0" is already in use. The following
> applications are using your soundcard(s) so you should check them and
> stop them as necessary before trying to start JACK again:
>
> jackd (process ID 2341)
Even more bugginess. Maybe try the other Jack.
A patch series that should fix the bugs was posted on alsa-devel:
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-August/065744.html
Regards,
Clemens
---------------------------- Original Message ----------------------------
Subject: Re: [LAD] USB device dmesg error
From: tom(a)trellis.ch
Date: Fri, September 20, 2013 15:52
To: "Clemens Ladisch" <clemens(a)ladisch.de>
--------------------------------------------------------------------------
Hei Clemens,
thanks for your reply.
> tom(a)trellis.ch wrote:
>> i'm trying to use a Roland R-26 as audio interface (USB).
>>
>> I saw it is now officially supported in the alsa-driver repo log
>
> This support is not complete.
>
> Please show the output of "lsusb -v" for this device.
the output i get is:
---
Couldn't open device, some information will be missing
Bus 001 Device 007: ID 0582:013e Roland Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x0582 Roland Corp.
idProduct 0x013e
bcdDevice 0.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 124
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 2
bInterfaceProtocol 2
iInterface 0
** UNRECOGNIZED: 06 24 f1 01 00 00
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 2
bInterfaceProtocol 2
iInterface 0
** UNRECOGNIZED: 07 24 01 01 00 01 00
** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x0d EP 13 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0038 1x 56 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 2
bInterfaceProtocol 1
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 2
bInterfaceProtocol 1
iInterface 0
** UNRECOGNIZED: 07 24 01 07 00 01 00
** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x8e EP 14 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x0038 1x 56 bytes
bInterval 1
---
-> the "Couldn't open device" looks suspicious
>
>> $ aplay a.wav
>> Playing WAVE 'rabe_babe.wav' : Signed 16 bit Little Endian, Rate 44100
>> Hz, Stereo
>>
>> -> there are no errors, but it stays like this (a.wav is a few seconds)
>> forever and there is no volume indication "from PC" on the device.
>>
>> $ arecord -f cd b.wav
>> Recording WAVE 'b.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
>> Stereo
>>
>> -> no errors but the file is empty (44 bytes), the device shows active
>> mic
>> level "to PC"
>
> I guess this is one of the devices that use implicit feedback
> synchronization, which is very buggy in the current driver. As far as
> I know, only Jack works with these devices.
>
Huh? How could that work with JACK if it doesn't with ALSA?
Btw, this is what i get when trying to start JACK with it:
--
ub64@ub64:~/tmp$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: R26AUDIO [R-26(AUDIO)], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
ub64@ub64:~/tmp$ lsof /dev/snd/*
ub64@ub64:~/tmp$ ps aux | grep jack
ub64 2340 0.0 0.0 10856 884 pts/1 S+ 15:50 0:00 grep
--color=auto jack
ub64@ub64:~/tmp$ jackd -d alsa -r 44100 -p 1024 -n 3 -d hw:0,0
jackdmp 1.9.8
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
control device hw:0
control device hw:0
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0,0|hw:0,0|1024|3|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
ATTENTION: The capture device "hw:0,0" is already in use. The following
applications are using your soundcard(s) so you should check them and
stop them as necessary before trying to start JACK again:
jackd (process ID 2341)
Cannot initialize driver
JackServer::Open() failed with -1
Failed to open server
--
>
> Regards,
> Clemens
>
Ciao,
Thomas
On ven. 20/09/13 14:50 , Harry van Haaren <harryhaaren(a)gmail.com> wrote:
> On Fri, Sep 20, 2013 at 11:38 AM, Ralf Mardorf wrote:
> Harry, could you please post some links, when you have seen the
> frustration you're talking about?
> I'd much prefer focus on improving from where we are: not highlighting
> where communication may have broken down.
>
> I'd also like to get feedback from users, about what tools are needed most:
> plugins, synths, effects? Yet-Another-DAW?
> If any of the above, please provide details / intended use-case.
A monophonic real time note to MIDI converter. The main issue will be
different instruments will have different harmonic contents for the same
note, and this content can change with time especially during the attack.
That imply some kind of visualization of the signal will be needed to fix the
parameters of the algorithm for a given instrument. It will be a great
plugin/patch for Fons coming wonderful oscilloscope.
Dominique
>
> Cheers from a sunny Ireland, -Harry
> _______________________________________________
> Linux-audio-dev mailing list
> Linux-audio-dev(a)lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-dev [1]
>
>
>
> Links:
> ------
> [1]
> http://awebmail.vtx.ch/parse.php?redirect=http://lists.linuxaudio.org/listi
> nfo/linux-audio-dev
>
On jeu. 19/09/13 17:50 , IOhannes m zmoelnig <zmoelnig(a)iem.at> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 2013-09-19 05:31, hermann meyer wrote:
> >>
> > I'm sad to hear that. :-( Please don't let you lead from the things
> > you didn't like, let you lead from the things you like instead. I
> > guess then it's necessary to let you know that we use /as well/ a
> > fork of your work, the zita-convolver library, in the guitarix
> > project. But we leave your copyright untouched, and the fork will
> > only come in use, when the user set a explicit compile flag. We
> > didn't promote it, or force the fork. Ordinary your original code
> > is in use. We do it to use ffmpeg instead fftw3 FFT, which perform
> > better on ARM devices.
>
> but this sounds like the perfect opportunity to not do a simple fork,
> but to send patches to upstream so fons' aeolus could support both
> fftw3 and ffmpeg FFTs.
> it might be a win-win situation, where not only more than just the
> original aeolus users can profit from fons' work (because you use his
> code) but also more than just your users can profit from your work
> (because you changes are included into upstream aeolus).
I fully agree. As the main fvwm-crystal developer, I know how hard it can
be to get good users returns. I find it scary if even developers cannot
share with each others.
I begun to write my own fvwm-crystal functions because I wanted them,
and when I was done, I contacted upstream. At first, I get no answer, so
I done a fork. Some months later, it was a discussion about my fork
on fvwm-crystal email list, and that time I get in touch with upstream,
and my work was incorporated into Crystal. Form there, I am now the
main contributor. It is not always easy, but so is life.
As the main fvwm-crystal developer, I just don't have the time to check
what can be the special requirements of each distribution or each user
that use it. And I find it very sad when they make modifications and
don't contribute them. From users, I can understand that very well, but
from developers, I think they just miss a very important point about FOS :
a community is always about solidarity.
That imply we must communicate more with each other. I think this is
a big problem, and not only related to Fons work, or the LAD, but to the
whole community. And it is not easy to solve if developers that make
patches just say nothing to the original developers. We are living
in an individualistic society, so are commercial softwares, but with
FOS, peoples must really take on them to communicate more about
what they are doing, that especially when they are making interesting
patches or forks.
Dominique
>
> fmasdr
> IOhannes
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.14 (GNU/Linux)
> Comment: Using GnuPG with Icedove - http://www.enigmail.net/ [1]
>
> iEYEARECAAYFAlI7D0UACgkQkX2Xpv6ydvTc+gCdGdTegTkJmgsRvZ5xz39AyxCe
> VEIAnRFYLyRpmcUOUsPZ8jsZ5ceuo21g
> =v6Hr
> -----END PGP SIGNATURE-----
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> http://lists.linuxaudio.org/listinfo/linux-audio-dev [2]
>
>
>
> Links:
> ------
> [1] http://awebmail.vtx.ch/parse.php?redirect=http://www.enigmail.net/
> [2]
> http://awebmail.vtx.ch/parse.php?redirect=http://lists.linuxaudio.org/listi
> nfo/linux-audio-dev
>
On 09/20/2013 02:35 PM, Ralf Mardorf wrote:
> On Fri, 2013-09-20 at 14:14 +0200, Alex wrote:
>> I'm glad you asked! :)
>>
>> A fully functional, comprehensively tooled up (including keybinding
>> functionality for as much as possible) jack midi sequencer, that doesn't
>> do audio or plugins (we have decent apps for those already), but does
>> midi......comprehensively. (and including properly functioning MMC, MTC,
>> bank and patch management, a full set of keybinding functions for as
>> much as possible, including navigation, folder tracks (containers) for
>> handling a lot of tracks, a complete pianoroll toolset for
>> input/edit/remove including bindings for things like toggle step input,
>> just to name a few.....)
>>
>> And a gui that works, and saves position, size and midi clip values like
>> CC lanes assigned per track that display in the pianoroll (1st violins
>> track might have velocity/volume/pitchbend/modulation CC lanes, and
>> tubas might only have volume and velocity, as an example)
>>
>> Did i mention keybinding functionality for as much as possible?
>>
>> And complete non-session-manager and OSC functionality?
>>
>> That should keep you busy for a while. :)
> I would like to get this too, but + audio recording ;).
>
> Especially a mute and unmute clip function, the most missing thing for
> Qtractor, the sequencer I'm using.
>
> And this mixer thingy Cubase for the Atari does provide, to set up real
> time hardware synth editors, that can be used by a sequencer track.
> Turning of running status send to hardware synth would be nice too.
>
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user(a)lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-user
Ralf, we already have good audio apps (non-timeline, etc), and it's easy
to port one to the other.
Qtractor doesn't do jackmidi.
Alex.
On ven. 20/09/13 13:14 , Ralf Mardorf <ralf.mardorf(a)alice-dsl.net> wrote:
> On Fri, 2013-09-20 at 11:00 +0200, michel dominique wrote:
> > That imply we must communicate more with each other.
>
> But we all know that some people can't communicate with each other, not
> only when it comes to forks, even when reporting bugs. That's bad, but
> natural.
Communication is the ground of civilisation. Unfortunately, our society
is so individualistic that some peoples miss it even when doing FLOSS.
It is why they have to learn to communicate at the first place. And that's
not that hard, it can begin by just sending an email.
>
> Perhaps my request will get them in contact.
> https://github.com/mgavioli/oscAeolus/issues/1 [1]
That's a good initiative!
Best,
Dominique
>
> Regards,
> Ralf
>
> _______________________________________________
> Linux-audio-dev mailing list
> Linux-audio-dev(a)lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-dev [2]
>
>
>
> Links:
> ------
> [1]
> http://awebmail.vtx.ch/parse.php?redirect=https://github.com/mgavioli/oscAe
> olus/issues/1[2]
> http://awebmail.vtx.ch/parse.php?redirect=http://lists.linuxaudio.org/listi
> nfo/linux-audio-dev
>
Good morning
i'm trying to use a Roland R-26 as audio interface (USB).
I saw it is now officially supported in the alsa-driver repo log:
commit aa47d6014f7011b335345ce14836efe358b0cfe5
Author: Clemens Ladisch <clemens(a)ladisch.de>
Date: Sun Mar 31 23:43:12 2013 +0200
ALSA: usb-audio: add support for many Roland/Yamaha devices
Add quirks to detect the various vendor-specific descriptors used by
Roland and Yamaha in most of their recent USB audio and MIDI devices.
...
...
- Roland R-26 Recorder
So i cloned the alsa-driver repo (branch release) and run ./gitcompile.
Everything looks good and alsa force-reload worked.
$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.25.
Compiled on Sep 2 2013 for kernel 3.2.0-39-lowlatency (SMP).
When the device is plugged in and selected to act as an audio interface,
dmesg says (debug=verbose):
[ 5642.186130] usb 1-5.1: new high-speed USB device number 8 using ehci_hcd
[ 5642.391666] snd-usb-audio: probe of 1-5.1:1.0 failed with error -5
[ 5642.392403] ALSA stream.c:711 >8:1:1: add audio endpoint 0xd
[ 5642.392775] ALSA stream.c:711 >8:2:1: add audio endpoint 0x8e
[ 5642.394385] usbcore: registered new interface driver snd-usb-audio
$ lsusb | grep Roland
Bus 001 Device 008: ID 0582:013e Roland Corp.
$ cat /proc/asound/cards
0 [R26AUDIO ]: USB-Audio - R-26(AUDIO)
Roland R-26(AUDIO) at usb-0000:00:0b.1-5.1, high speed
After compile, there is a clear warning:
WARNING!!! The mixer channels for the ALSA driver are muted by default!!!
**************************************************************************
You would use some ALSA or OSS mixer to set the appropriate volume.
-> alsamixer says "This sound device does not have any controls." so i
can't unmute anything there.
$ aplay a.wav
Playing WAVE 'rabe_babe.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Stereo
-> there are no errors, but it stays like this (a.wav is a few seconds)
forever and there is no volume indication "from PC" on the device.
$ arecord -f cd b.wav
Recording WAVE 'b.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
-> no errors but the file is empty (44 bytes), the device shows active mic
level "to PC"
It doesn't work for input or output but i guess it's near working. The
only error is in dmesg (error -5 ?). Were could i go from here? Any hint
is welcome
Best regards,
Thomas
I was attracted by the small (memory and screen) footprint of JackMix, the Qt
Matrix Mixer for Jack, which makes it very useful on laptops, but needed to be
able to control it via MIDI. This lets us give performances at conferences
when we can't afford to talk the whole ensemble. We play a video along with the
live musicians feeding separate mixes to each performer and to master speakers
from multi-track video being played by the VLC Jack plugin.
Consequently, I've updated it to make the mixing elements respond to MIDI
control commands.
My updated version is here: https://github.com/nickbailey/jackmix
If the original author, Arnold Krille, is reading this, I'd really like to
email you, Arnold. There are one or two things I'd like to change but don't
yet understand the best way to do it!
Here is the NEWS file:
VERSION 0.5.0
-------------
New features this version (added by Nick):
The right-click on the matrix can be a bit fiddly to pop up the
context menu instead of the knob setting spinbox, so the following
shortcuts are now available:
* Toggle element selection with Shift-Mouse1
* Replace selected elements with Ctrl-Shift-Mouse1 in the upper-
left-most selected element
MIDI control of the mixer is now available. You can route signals
from a MIDI control surface to JackMix: it appears as "JackMix" in
the ALSA MIDI tab of QJackControl, for example. Each element now has
an extra context menu entry: "Assign MIDI Parameter". Use should be
self-evident.
Points to note:
* You can't unassign a midi parameter -- it can be set to
0 though (my control surface doesn't have controller 0;
some may I suppose).
* MIDI control parameter numbers are saved in the xml file
generated by File->Save File... menu action, but this means
there are extra XML attributes which might upset older versions
of JackMix. I've not tested this, but it might cause problems
if you aren't aware of the extra functionality.
Hello all,
zita-ajbridge-0.4.0 is now available at the usual place:
<http://kokkinizita.linuxaudio.org/linuxaudio/downloads/index.html>
>From the README:
* The 'JackPortIsTerminal' and 'JackPortIsPhysical'
flags are set on the Jack ports.
* The correct latency value is set on the Jack ports.
This is the latency resulting from buffering and
resampling. It does not include any additional
latency due to processing by the sound card, e.g.
from anti-alias filters. This can be added using
the -I (for a2j) and -O (for j2a) options, in the
same way as for Jack's ALSA backend.
The README also explains how to test this.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
Hi all,
I just joined the developers list as I've been looking into adding
Jack midi support to one of my favourite sequencers (harmonySEQ) and
need some advice related to threading and shared data. I know these
issues have come up before, specifically I found two related threads
[1][2], but I am still confused as to what would be the best approach.
(I am also new to thread programming in general.)
As this is a sequencer the main data structure is a list of patterns
where each pattern contains a list of notes. Patterns can be
manipulated while being played back. Both the GUI thread and Jack
thread should be able to modify the patterns, e.g. a midi event might
toggle a pattern on/off, the GUI can insert a note into a pattern, or
add or remove a pattern.
I've considered different approaches (separate data for each thread,
various versions of shared data), but I believe all of them make at
least two assumptions: That reading and writing byte-sized data (e.g.
a bool flag) and that updating pointers is atomic. I got a bit
confused reading this thread [2]. Are these assumptions correct?
To be more specific, one of the schemes I came up with followed the
idea of using only one shared data structure which has to be in a
consistent state at all points in time. To ensure this I would have to
be very careful as to how I update the data structure. For example, if
the GUI added or removed a note from a pattern (which might involve a
memory reallocation) it would do so by performing theses changes on a
copy of the current pattern and then replace the original pattern by
updating the pointer to this new version of the pattern. Simple
updates (e.g. turning a pattern on / off) would be performed directly
on the pattern as I consider them atomic. To keep references to
patterns throughout the code I would use some global registry, as I
cannot use pointers for they "expire" (might point to an old version
of the pattern).
Does that make sense? Are there some obvious flaws with that scheme
that I oversaw, are there better ways to go about it? I am really
quite new to this kind of programming issues, I would appreciate any
pointers and advice!
Thanks,
Burkhard
[1] http://linux-audio.4202.n7.nabble.com/Best-practice-for-sharing-complex-dat…
[2] http://linux-audio.4202.n7.nabble.com/Atomic-Operations-td58961.html
