JackAudio April 2017

jackaudio@lists.linuxaudio.org

9 participants
10 discussions

[Jack-Devel] Cannot combine audio devices with more than 64 channels

by Jörg Müller

I need to combine two HDSPe MADI FX cards to one virtual device. I have a working driver, which is alsa-compatible. I can select each single card in any alsa-compatible application and all channels work flawless. For combining the MADI FX cards to one virtual device, I created an .asoundrc with 194 inputs for each card. When I start that virtual device via jackd -R -d alsa -C madifx_record_all -P madifx_playback_all I get this error: > creating alsa driver ... > madifx_playback_all|madifx_record_all|1024|2|48000|0|0|nomon|swmeter|-|32bit > jackd: pcm_multi.c:1060: snd_pcm_multi_open: Assertion `!slave_map[sidxs[i]][schannels[i]]' failed. However, it works when I reduce the amount from 194 to 64 channels per card. I tried to use 128 channels per card, but that fails the same way. See my alsa-info attached, which also includes the .asoundrc content. I also found this, which might be related: https://ccrma.stanford.edu/mirrors/lalists/lad/2005/06/0202.html To me, this looks like a bug. What do you think?

7 years, 2 months

Re: [Jack-Devel] Failures in connecting mac OSX Sierra and an embedded board with linux via netjack2

by Chris Caudle

On Wed, April 26, 2017 6:24 pm, Frodo Jedi wrote: > Actually, my goal is that of sending audio from the board to > other connected devices, for the moment I am using a mac, > it could be another pc with linux or windows. Jack is designed with the idea that the audio hardware controls all data flow, since that is really the final location that the data has to either get to the output device (D/A converter, S/PDIF output, etc.), or is sent by the input device (A/D converter). In jack terms what you are describing is that the odroid would be sent to multiple master devices. You either have to disconnect from one master and connect to another each time you want to send audio to a different device, or you have to use a bridge software to bridge between different jack master clock domains. The jack walk-through that you linked to previously shows using the audioadapter plugin for that, the zita-nj and zita-jn bridges work better. > I will try zita but my main goal is to use netjack2. You should be very clear whether your goal is to use netjack2, or whether your goal is to send audio from your odroid to various other devices. If your goal is to use netjack2 you should pick a connection topology that matches the expectations of the jack design. If your goal is actually to send audio from the odroid to various other devices, then you should use whatever tool is most appropriate for the job. If you need audio to be sent to multiple other devices with audio hardware using jack, then zita bridge is probably what you need if you are using jack. Whether you should even be using jack is a separate question. Is this a studio or audio production type setup? Because if you are just trying to setup distributed home audio then something like Logitech Media Server and squeezebox lite software may be better suited for what you are trying to do. > I am going for a wired connection first, with the final aim to > test netjack2 over wifi, and compare the wired and wireless > behaviours under various conditions. Don't have high expectations for jack over WiFi. Jack is designed around low latency connections, and WiFi generally cannot sustain reliably low latency connections. There is work going on to get there, but unless you have been following along with the bufferbloat and "make Wi-Fi fast" work and are running bleeding edge drivers you are probably going to hit latency spikes that will cause problems for jack. You can have fun figuring that out once wired connections are working OK. > The odroid board (configured as master in the first case) > has a beheringer soundcard perfectly working, I can record > and listen audio using it. So I should be able to use the > odroid + soundcard configuration as a master, and the > mac as a slave. Right? Yes, presumably. Just to be clear, those terms mean you would have something like Ardour running on the mac producing audio data, and the data would be sent to the odroid which would play the audio through the behringer/speakers. > Ok, but my goal is to have a networked configuration where > the linux odroid system broadcast audio to various connected devices. With the various connected devices each having audio hardware and speakers connected? Then you will need bridge software such as audioadapter or zita-njb and zita-jnb loaded to cross between the clock domains (since each separate audio hardware will have its own sample clock running independently and you don't have a way to synchronize all the clocks). > My understanding is that the odroid must be the master and > all the other devices receiving and reproducing the audio > signal must be the slave. Am I wrong? You are wrong. In the jack terminology, the device with the fixed clock, i.e. the audio hardware device, must control the flow of data, in other words must be the master. In the case of multiple devices playing out the audio you have in jack terminology multiple masters, so you have to bridge between the masters. Just for the sake of completeness, there is a way to do what you thought you wanted, used in studio and broadcast facilities, but it requires all the audio playback devices to have the ability to synchronize their audio clocks to a centralized clocking signal used for the entire studio or broadcast facility. Traditionally that was done by distributing a synchronization signal to each piece of equipment used, more recently it can be done by using IEEE 1588v2 "Precision Time Protocol" to synchronize the local clock of each device over Ethernet. That is a fairly sophisticated setup, suffice to say that if you had equipment that could do that you would already know how to set it up correctly, so that topology does not apply here. Jackd may not be the tool best suited for your use. Do you actually need low latency and the patch bay style features of jack? If you just want to be able to play audio from a central server to various audio playback devices which do not need to be synchronized at the audio frame level then some type of whole house audio design may be better suited to what you want than jack, which is designed specifically for low latency audio production use. Either Logitech Media Server with squeezebox lite instances as I mentioned, or an Icecast server running on the odroid and VLC or something similar running on the other machines to pull the audio they want. That is the answer to a question you did not ask, just wanted to mention it for completeness, since you have asked about getting netjack running but it is not clear from some of your questions whether that is really what would best serve your end goal (assuming your end goal really is some arrangement of playing audio, and contrary to what you wrote earlier running netjack2 is not actually a goal in itself). >> You are giving a unicast address as the argument for the >> multicast address > I don't have the setup right now, I will re-test tomorrow, > but if I correctly remember, I used the address 192.168.117.129 (which is the static address I gave to the mac) because simply > using jackd -R -d net (which takes the default) did not work. I'll have to try myself later. My machines have multiple network interfaces, which makes multicast setup a little tricky, I have to remember how to tell the kernel which interface should be listening for multicast, might take me a while to get that working properly. But a little worrying that the documentation does not seem to match the behavior of the software. > Master: (mac OSX Sierra 10.12.4) > > sh-3.2# jackd -R -d coreaudio -Cno -Pyes Note that I'm not sure that the -C and -P arguments actually take a yes or no value. There were no error messages complaining, so maybe that is OK. The documentation seems vague and I don't have a mac to verify the coreaudio driver behavior. See below... > jackdmp 1.9.11 > Copyright 2001-2005 Paul Davis and others. > Copyright 2004-2016 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 > JACK server starting in realtime mode with priority 10 > self-connect-mode is "Don't restrict self connect requests" > Separated input = 'Built-in Microphone' > Separated output = 'Built-in Output' > Input channel = 0 ==> JACK input port = 0 > Input channel = 1 ==> JACK input port = 1 That seems to indicate that there are two input channels, so the -Cno did not seem to do anything. Maybe just leave off the -C altogether and have only -P. Since you have only mentioned playing audio and not capturing audio, the goal was to get the master configured for playback only to simplify the configuration as much as possible. > JACK output port = 0 ==> output channel = 0 > JACK output port = 1 ==> output channel = 1 > CoreAudio driver is running... > Starting Jack NetManager > Listening on '225.3.19.154:19000' > Sending parameters to ... > Can't set net buffer sizes : Invalid argument > SetParams error... > Can't init new NetMaster... If I am interpreting that correctly, the message indicates that the netjack driver could not start correctly. > Slave: (debian linux odroid board) > Initializing connection with ucas-MacBook-Pro-9.local... So the odroid was able to detect that the MacBook was running netjack. Possibly all the later error messages are because the MacBook is not giving reasonable responses due to whatever caused the earlier messages about not being able to set the net buffer sizes. > Any suggestion? The walk-through guide says this form will print more information: jack_load netmanager -i "-h" Try that and see if there is useful information printed about the number of channels which can be used, or the optimum period size for your system. My suspicion after looking more closely is that this message: > Can't set net buffer sizes : Invalid argument Is that the audio parameters set force the netjack driver into attempting to use invalid settings. That message comes from this location in JackNetInterface.cpp: try { // audio net buffers if (fParams.fSendAudioChannels > 0) { fNetAudioCaptureBuffer = AudioBufferFactory(fParams.fSendAudioChannels, fTxData); assert(fNetAudioCaptureBuffer); } if (fParams.fReturnAudioChannels > 0) { fNetAudioPlaybackBuffer = AudioBufferFactory(fParams.fReturnAudioChannels, fRxData); assert(fNetAudioPlaybackBuffer); } } catch (exception&) { jack_error("NetAudioBuffer on master allocation error..."); return false; } // set the new buffer size if (SetNetBufferSize() == SOCKET_ERROR) { jack_error("Can't set net buffer sizes : %s", StrError(NET_ERROR_CODE)); goto error; } return true; error: FreeNetworkBuffers(); return false; } So it appears that the jack side was able to set the buffer size with no exception, but then after attempting to use that information to set the network buffer size the network API gave an error. I just looked back at your first email and that message was not present. In the first configurations you explicity gave the -p128 -n2 parameters, you did not show that in your most recent command output. Perhaps you introduced a new problem. Typically when jackd starts it prints the sample rate, the sample format (number of bits used), and the number of samples per frame and frames per period. I do not see that in the most recent output you showed. Did you truncate any output from the jackd messages, or did jackd really not print out the buffer size information? -- Chris Caudle

7 years, 5 months

Re: [Jack-Devel] Failures in connecting mac OSX Sierra and an embedded board with linux via netjack2

by Chris Caudle

On Wed, April 26, 2017 12:22 pm, Frodo Jedi wrote: > My goal is to send audio from the odroid board (master) > to the mac (slave) using a direct ethernet connection. The jackd master is the device with the audio hardware. Are your problems perhaps caused because you are following the setup instructions for master on a device with no audio hardware? (saw later on that you tried the other way around, so let's concentrate on that configuration). > On the master: > /usr/bin/jackd -P 70 -p96 -t 2000 -dalsa -dhw:CODEC -S -s > -r48000 -p128 -n2 > jack_load netmanager That is on the odroid? What ALSA compatible hardware is on the odroid? In any event, the short of it is that ALSA is the driver for the audio hardware, so whichever device has speakers connected better be the device where you are giving the driver argument as "-dalsa" or you won't hear any sound. > Actually, if can be of any help, I also tried to set the mac > as master and the linux board as the slave. That should be the correct configuration if you want to connect the mac to an amplifier and speakers and you want the linux odroid system to just send digital audio information to the mac and have the mac play the audio. > The result is that they seem to communicate, > although jack on the mac crashes giving the error > "Floating point exception: 8": Can you run local jack aware software on the mac and play audio through the mac audio hardware? Make sure you can get that working first before trying to bring networking into it. > Default input and output devices are not the same !! > Cannot open default device in duplex mode, so aggregate > default input and default output > Separated input = 'Built-in Microphone' > Separated output = 'Built-in Output' If you aren't going to use "Built-in Microphone" as an input device, you could start with playback only. That should get rid of the "input and output devices are not the same !!" warning. I think that would be -P passed the coreaudio driver parameters, or maybe -Cno -Pyes, the manual page is a little vaguely worded and I don't have a machine with coreaudio to play with to try it out. That is assuming you want to use the built in audio for the output, otherwise the wrong device is selected and you need to sort that out first. > Takes physical 2 audio output(s) for slave > Takes physical 0 MIDI input(s) for slave > Takes physical 0 MIDI output(s) for slave > Sending parameters to ... > Floating point exception: 8 This is a modern mac with Intel processor? Just making sure. I don't have a mac myself, but just in case someone else can help, which OS version? This is the default multicast address reported by the master: > Starting Jack NetManager > Listening on '225.3.19.154:19000' But you specified a unicast address in the place where you would usually specify a multicast address different than default: > On the slave (linux board): > jackd -R -d net -a 192.168.117.129 -p 19000 >From the walk-through you linked: Parameters for driver 'net' (all parameters are optional): -a, --multicast_ip Multicast Address (default: 225.3.19.154) You are giving a unicast address as the argument for the multicast address to use. Why did you think you needed to do that? It seems the unicast address was ignored, because there is a message later showing connected to macbook. > Maximum number of input ports is reached for application ref = 0 > driver: cannot register port for system:midi_playback_769 > Can't allocate ports. > Initing net driver fails... That looks like the net backend driver is trying to register MIDI ports for some reason, but the documentation says the default is no MIDI ports. >From the walk-through page "The default configuration is a simple stereo use, with no midi port." Maybe one of the jack2 devs can comment on whether the behavior and documentation have diverged. If you do get rid of the internal microphone as an input port, you should probably set the net backend to not expect any input ports. I think that would be adding -C 0 -P 2 to the arguments after -dnet. I guess for good measure you could add -i 0 -o 0 to specify 0 MIDI in and out ports, although that is supposed to be the default. -- Chris Caudle

7 years, 6 months

[Jack-Devel] Failures in connecting mac OSX Sierra and an embedded board with linux via netjack2

by Frodo Jedi

Hi all, I have issues when trying to connect via netjack2 an odroid embedded board (with linux debian, real time kernel) and a new macbookpro 2016 with OSX Sierra 10.12.4. My goal is to send audio from the odroid board (master) to the mac (slave) using a direct ethernet connection. Basically I want to test the simple case of playing a file from the board and listen to the result on the loudspekers of the mac. I verified that multicasting is enabled on both the board and the mac. From the mac I connect to the board via SSH. I have set static Ip addresses on both the board and the mac. I am using the latest version of jack2 (jackdmp 1.9.11). Notably, I have not compiled jack2 with dbus as I am running jack headless (following the advise found on http://jrigg.co.uk/linuxaudio/jack2debian7.html). To implement the netjack2 connection I followed the instructions on the jack audio website https://github.com/jackaudio/jackaudio.github.com/wiki/WalkThrough_User_Net…. The result is that the slave keep waiting for a master. These are the outputs I get: On the master: /usr/bin/jackd -P 70 -p96 -t 2000 -dalsa -dhw:CODEC -S -s -r48000 -p128 -n2 jack_load netmanager jackdmp 1.9.11 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2015 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 70 self-connect-mode is "Don't restrict self connect requests" creating alsa driver ... hw:CODEC|hw:CODEC|128|2|48000|0|0|nomon|swmeter|soft-mode|16bit configuring for 48000Hz, period = 128 frames (2.7 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 Starting Jack NetManager Listening on '225.3.19.154:19000' on the slave: jackd -R -d net jackdmp 1.9.11 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2016 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 JACK server starting in realtime mode with priority 10 self-connect-mode is "Don't restrict self connect requests" NetDriver started in async mode without Master's transport sync. Waiting for a master... Any advise? Actually, if can be of any help, I also tried to set the mac as master and the linux board as the slave. The result is that they seem to communicate, although jack on the mac crashes giving the error "Floating point exception: 8": On the master (mac): jackd -P 70 -p96 -t 2000 -dcoreaudio -s -r48000 -p128 -n2 jack_load netmanager jackdmp 1.9.11 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2016 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 JACK server starting in realtime mode with priority 70 self-connect-mode is "Don't restrict self connect requests" Default input and output devices are not the same !! Cannot open default device in duplex mode, so aggregate default input and default output Separated input = 'Built-in Microphone' Separated output = 'Built-in Output' Clock drift compensation was asked but is not needed (devices use the same clock domain) Ignore incorrect channel mapping value = 2 Input channel = 0 ==> JACK input port = 0 Input channel = 1 ==> JACK input port = 1 JACK output port = 0 ==> output channel = 0 JACK output port = 1 ==> output channel = 1 CoreAudio driver is running... Starting Jack NetManager Listening on '225.3.19.154:19000' Takes physical 2 audio output(s) for slave Takes physical 0 MIDI input(s) for slave Takes physical 0 MIDI output(s) for slave Sending parameters to ... Floating point exception: 8 On the slave (linux board): jackd -R -d net -a 192.168.117.129 -p 19000 jackdmp 1.9.11 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2015 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 self-connect-mode is "Don't restrict self connect requests" NetDriver started in async mode without Master's transport sync. Waiting for a master... Initializing connection with ucas-MacBook-Pro-9.local... Maximum number of input ports is reached for application ref = 0 driver: cannot register port for system:midi_playback_769 Can't allocate ports. Initing net driver fails... Notably the result of jack_lsp on the slave is: system:capture_1 system:capture_2 system:midi_playback_1 system:midi_playback_2 system:midi_playback_3 ….. system:midi_playback_766 system:midi_playback_767 system:midi_playback_768 It seams that there is a problem with the MIDI ports but I really can't understand how to solve this. Thanks in advance Cheers

7 years, 6 months

[Jack-Devel] Fwd: Windows download link broken

by Michel

Hello, I want to download Jack for Windows but the download link is dead. Regards, Michel

7 years, 6 months

[Jack-Devel] Fwd: Dropbox link wont work?

by ZTA TV

---------- Forwarded message --------- From: ZTA TV <zenythstudio(a)gmail.com> Date: Thu, Apr 6, 2017 at 3:09 PM Subject: Re: [Jack-Devel] Dropbox link wont work? To: Markus Seeber <markus.seeber(a)spectralbird.de> thanks :) I downloaded & registered the program with the code i was given on this site. (http://i.imgur.com/Q6x2Iet.png) but unfortunately now im getting this, (picture attached) did i miss out on a crucial step? On Thu, Apr 6, 2017 at 2:28 PM, Markus Seeber <markus.seeber(a)spectralbird.de > wrote: Hello, latest binaries are currently hosted here. https://github.com/jackaudio/jackaudio.github.com/releases best regards Markus On 04/06/2017 11:11 PM, ZTA TV wrote: > hello Jack Audio - I am a up & coming DJ interested in your software & I > went to download the Jack 2 for Windows, unfortunately it told me the > Dropbox link wasnt there anymore - is there possibly a change in the > folders since? or is the app not available anymore? Thank you for your > time, Zenyth > > > > _______________________________________________ > Jack-Devel mailing list > Jack-Devel(a)lists.jackaudio.org > http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org _______________________________________________ Jack-Devel mailing list Jack-Devel(a)lists.jackaudio.org http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org

7 years, 6 months

[Jack-Devel] Windows download links broken

by Jeffrey Long

Hi, I'm trying to download JACK for Windows, but the download takes me to bad Dropbox links. Is there any place I can download them from? Searched around but couldn't find them. Thanks, Jeffrey Long

7 years, 6 months

[Jack-Devel] Most download links are down on jackaudio.org

by Tobiasz Karoń

Hey! I've found out that most download links on this page are dead: http://www.jackaudio.org/downloads/ They seem to lead to Dropbox, but only a 404 page is shown. Some links are ok, and these seem to be hosted on the jackaudio.org itself. - unfa

7 years, 6 months

Re: [Jack-Devel] Dropbox link wont work?

by Markus Seeber

This looks perfectly fine to me. Jack has started and seems to be running just fine. To control it, you have to use an additional application like qjackctl. I am not sure about windows but there should be tutorials around the net. If you are unsure how to use jack, you can also ask people on the linux-audio-users mailing list. best regards Markus On 04/07/2017 12:09 AM, ZTA TV wrote: > thanks :) I downloaded & registered the program with the code i was given > on this site. (http://i.imgur.com/Q6x2Iet.png) > > but unfortunately now im getting this, (picture attached) did i miss out on > a crucial step? > > On Thu, Apr 6, 2017 at 2:28 PM, Markus Seeber <markus.seeber(a)spectralbird.de >> wrote: >> Hello, >> latest binaries are currently hosted here. >> https://github.com/jackaudio/jackaudio.github.com/releases >> >> best regards >> >> Markus >> >> On 04/06/2017 11:11 PM, ZTA TV wrote: >>> hello Jack Audio - I am a up & coming DJ interested in your software & I >>> went to download the Jack 2 for Windows, unfortunately it told me the >>> Dropbox link wasnt there anymore - is there possibly a change in the >>> folders since? or is the app not available anymore? Thank you for your >>> time, Zenyth >>> >>> >>> >>> _______________________________________________ >>> Jack-Devel mailing list >>> Jack-Devel(a)lists.jackaudio.org >>> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org >> >> _______________________________________________ >> Jack-Devel mailing list >> Jack-Devel(a)lists.jackaudio.org >> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org >>

7 years, 6 months

[Jack-Devel] Dropbox link wont work?

by ZTA TV

hello Jack Audio - I am a up & coming DJ interested in your software & I went to download the Jack 2 for Windows, unfortunately it told me the Dropbox link wasnt there anymore - is there possibly a change in the folders since? or is the app not available anymore? Thank you for your time, Zenyth

7 years, 6 months

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JackAudio April 2017