JackAudio May 2017

jackaudio@lists.linuxaudio.org

24 participants
13 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?

6 years, 8 months

[Jack-Devel] Status of the jackaudio.org homepage and releases (good news)

by Markus Seeber

Hello again, as elaborated in my previous mail (bad news) the jackaudio.org page is kind of in trouble. Before these problems can be resolved, there are a few things that have to be made clear: 1 Who has currently access to the webspace hosting jackaudio.org? I know Paul has, I think Stéphane has and somewhere in the back of my head a voice tells me the Filipe might have access? 2 What I know is, that whoever has access to the webspace of jackaudio.org has not been monitoring the jack-devel list for my pull requests. I asked Paul directly and it was done, but I think that should not be required all the time, so here are some proposals: 2.1 Allow me to access the webspace and do the updates myself. I do not need a real shell, some kind of file system access should be sufficient. Pro: * technically easy, depending on how it's done * simplifies communication for me (no need to send pull requests to the List) * will result in fast updates in the future * adds no more dependecy on GitHub services Con: * trust/security/legal concerns * shifts more responsibility on me, reduces control for the webspace owner * still fails in case I am not available 2.2 Set up continuous integration process GitHub offers an API for interacting with external services in case a repository is updated. This could be used to deploy changes in the jackaudio.org repository automatically to the webspace. I would need to look up how this could work in detail and if there are additional costs involved. Maybe it can be done in the same way as the ardour.org homepage is set up? Pro: * removes more need for manual intervention in the long run * no need to authorize additional users to access the webspace * keeps working even if the maintainers of the website changes Con: * requires an external or internal service to be authorized to access the webspace * requires some amount of initial setup and testing * adds a dependecy on GitHub services * needs documentation and maintenance cost might be to high 2.3 Remove the webspace from the chain completely. The page will then be hosted only on GitHub pages under the jackaudio.org domain. Pro: * simplifies deployment considerably * Deployment does not depend on multiple people anymore: faster, less work hours wasted * Deployment of updates will be much faster * more features of the GitHub Pages service can be used, like fetching repository metadata, hosting of binaries, etc... * Adding/removing maintainers is easy and handled through access to the GitHub repository Con: * Makes the page dependant on GitHub, if GitHub goes down or evil, so will the page. Still, it will be possible to host the static page on any webspace when that happens and just change the domain record. * Domain owner has less control over the page content. * Needs some setup by the domain owner, I remember there have been concerns about the records for mail adresses and the jack mailing lists. (not entirely sure since the lists seem to sit on a subdomain, this probably also entails security concerns...) 2.4 Migrate to something completely unrelated. aka Your suggestions? 3 hosting of binaries This needs input by those who manage the releases of jack1 and jack2 since it is tied into the release process. What users usually expect is the following ordered by importance (subjective): a) one official location for downloads b) a predictable and consistent naming convention for files and archives and the contents (especially for packaging) c) predictable and consistent URLs for all versions and variants(especially for packaging) d) complete source tarballs e) patchnotes f) additional mirrors g) checksums h) release announcement b, d, e, g, and h are usually provided by the ones responsible for the releases, the rest depends on which approach was chosen in section 2. If the webspace is used, I strongly suggest to use it also for the binries and in case I get access I can offer to put the binaries there for you in the right place. Otherwise there is the opportunity to create tags on your GitHub repositories and attach the files there, which is also a nice place to put checksums, patchnotes and other version information and also provides automatically a source archive of the tagged commit. I will not add the binaries into the repository of the webpage and git LFS does not sound especially compelling to me too since it requires, surprise, external hosting of the files anyway and in that case, there is almost no gain over just using the webspace or the GitHub releases features. Dear Paul, dear Stéphane, dear Filipe, maybe talk to each other on the LAC about it and come to a conclusion, because I am at a loss here and can not go any further without your intervention. It's not the end of the world, but it kind of keeps bugging me and the users. best regards Markus

6 years, 9 months

[Jack-Devel] Jack to Bluetooth

by jamie marchant

Hi: I'm new to Jack. Can it be used to redirect audio output over Bluetooth? Could you use it as a headset with a PS3 in that case? -- -Jamie Marchant

6 years, 9 months

[Jack-Devel] Looking for help setting up NetJack over WLAN from a Windoze box

by jack-devel＠malikc.neomailbox.net

Hi all, I'm running into issues with a project that uses JACK and would appreciate help or pointers therewith. The basic premise is as follows: I want to use JACK to transfer audio from a _Windows slave_ to a _Linux master_. I've been using the latest JACK distro I could find (1.9.10). I've successfully got it to run using NetJack2 (with `jack_load netmanager` on the master and `jackd -d net` on the slave). It works great... ...But it only works great over Ethernet. And I'd very much like it to work over WLAN, which it doesn't. Over wireless, the sound is completely garbled. AFAICT, it's a network issue. I've tried to tinker with the options to get it to work better (say, at the cost of latency), but with no success. If anyone has pointers has to how to improve the setup with NetJack2 in order for it to work over WLAN, they would be greatly appreciated. That being said, reading the doc and looking around the web for info suggests it might very well be the case that NetJack2 simply isn't suited for WLAN transport. Indeed, some resources indicate that NetJack1 would be more adapted. Trouble with that, then, is that, at least in the distro I got, NetJack1 doesn't work on Windows. Trying to start it yields the following error: netjack_poll not implemented , after which the program exits. I've seen a thread (I believe on this list) indicating that at least some people were aware of the issue, although no solution was provided. Given that that thread was a bit old, and assuming the above conclusion -- that NetJack2 isn't suited to wireless -- is correct, I guess my question boils down to: Can anyone tell me how I can get NetJack1 work on Windows? Many thanks in advance, although will have some left for later, mc.

6 years, 10 months

[Jack-Devel] Netjack async network errors

by Wargreen

Hi Jack list, I have a network with 5 slaves (net driver) and 1 netmanager (with soundcard). After a while, on slave hang and i got Sat May 27 17:00:51 2017: ERROR: Recv fd = 94 err = Resource temporarily unavailable Sat May 27 17:00:51 2017: ERROR: Recv connection lost error = Resource temporarily unavailable, 'PiFm_Bar' exiting This one try to reconnect and the master add a new 'PiFm_Bar' Sat May 27 17:00:51 2017: ERROR: Recv fd = 94 err = Resource temporarily unavailable Sat May 27 17:00:51 2017: ERROR: Recv connection lost error = Resource temporarily unavailable, 'PiFm_Bar' exiting And the cycle happen again. The network parameters : Sat May 27 17:00:51 2017: **************** Network parameters **************** Sat May 27 17:00:51 2017: Name : PiFm_Bar Sat May 27 17:00:51 2017: Protocol revision : 8 Sat May 27 17:00:51 2017: MTU : 1500 Sat May 27 17:00:51 2017: Master name : LaChoze Sat May 27 17:00:51 2017: Slave name : PiFm_Bar Sat May 27 17:00:51 2017: ID : 9 Sat May 27 17:00:51 2017: Transport Sync : no Sat May 27 17:00:51 2017: Send channels (audio - midi) : 2 - 3 Sat May 27 17:00:51 2017: Return channels (audio - midi) : 0 - 3 Sat May 27 17:00:51 2017: Sample rate : 48000 frames per second Sat May 27 17:00:51 2017: Period size : 256 frames per period Sat May 27 17:00:51 2017: Network latency : 10 cycles Sat May 27 17:00:51 2017: SampleEncoder : Float Sat May 27 17:00:51 2017: Slave mode : async Sat May 27 17:00:51 2017: **************************************************** After that, the full jack server (master) hang, with all clients (Ardour have a memory leak and is killed). Is this problem become from jack's configuration, network or netjack ? Thanks a lot, wargreen

6 years, 11 months

[Jack-Devel] Run Native Instruments’ MASCHINE 2.6.5 in sync with Bitwig Studio via Jack

by micu

Hey everyone, FYI: /me just published a screencast on how to run Native Instruments’ MASCHINE 2.6.5 in synchronization with Bitwig Studio via Jack: https://twitter.com/micuintus/status/867759553735270404 https://joindiaspora.com/posts/9359948 I thought this might be interesting for you. Best regards, micu -- OpenPGP / GnuPG: 0xE4CB4E80 Fingerprint: 1A15 A480 1F8B 07F6 9D12 3426 CEFE 7455 E4CB 4E80 <<</>> http://www.micuintus.de

6 years, 11 months

[Jack-Devel] How does --hwmix work?

by David Kastrup

Hi, I have an RME Hammerfall DSP, a card that I believe supports --hwmix on jackd. How does this work? Does this require special support by the application? If so, which applications exist using it via Jack? And yes, I've looked through the documentation I could readily find and I am sure that I am missing something. By the way: subscribing to this list is ridiculously hard. It is called "jack-devel(a)lists.jackaudio.org". Mailing to it gets an autoresponse to please subscribe before mailing. There is no info how to do this in the mail, not even in the headers, and the sender is "jack-devel-owner(a)lists.jackaudio.org". Looking at the general list host "http://lists.jackaudio.org" states that the list overview has been disabled and that one should append the list name to "the current URL" in order to find the info. Which does not work. It turns out that the "list name" isn't actually "jack-devel" but rather "jack-devel-jackaudio.org". Reminds me of the Usenet group alt.hack which was moderated without a moderator. You were eligible for posting there if you figured out how to do it. -- David Kastrup

6 years, 11 months

[Jack-Devel] unsubscribe

by ROBERT WOLF

6 years, 11 months

Re: [Jack-Devel] homepage(s) and download links

by Jeffrey Long

I couldn't agree more. I posted a message to asking about the download links on April 12. Nobody ever responded to me. In the meantime, I just checked, and those bad dropbox links still exist on the jack website. Really guys? Since I and others have inquired about the download links, you guys have wasted no time answering someone's query's about using a Macbook with the latest MacOS. With all due respect, this project is a joke -- plus, once I finally did manage to find the download links and install it, it didn't work on my system (W7 64 bit). I wouldn't dream of even attempting to get help on this list. Again, what a joke: this is the reason open source software will never catch on. You guys just don't care. Jeffrey Long On Fri, May 5, 2017 at 5:19 AM, Jörn Nettingsmeier < nettings(a)stackingdwarves.net> wrote: > On 05/04/2017 02:20 PM, IOhannes m zmoelnig wrote: > <..> > >> i think the current state is a real disservice to the project (at >> least for all those users who cannot just emerge/yum/apt install JACK), >> which might explain the slightly sarcastic tone. >> >> gmasrd >> IOhannes >> >> ¹ reminder to self: get out of sarcasm mode asap. >> > > +1 > > I also think this dropbox stuff for osx is extremely weird - I never cared > until I got myself a used macbook for professional reasons, but it feels > ominous... > > > -- > Jörn Nettingsmeier > De Rijpgracht 8, 1055VR Amsterdam, Nederland > Tel. +49 177 7937487 > > Meister für Veranstaltungstechnik (Bühne/Studio), Tonmeister VDT > http://stackingdwarves.net > _______________________________________________ > Jack-Devel mailing list > Jack-Devel(a)lists.jackaudio.org > http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org >

6 years, 11 months

[Jack-Devel] Status of the jackaudio.org homepage (bad news)

by Markus Seeber

Hello users and developers of JACK, recently, there have been a lot more questions and remarks about the jackaudio.org homepage and the releases, especially of jack2. Since most of these questions and remarks are entirely justified, this mail (bad news) will provide some insight I have about the current situation of the page, the release process and how all these things did happen up to now. This is a long mail, only read it if it is really relevant to you. 1 the page The main part of the current homepage for JACK ( jackaudio.org ) is a set of static html pages, generated from markdown files with jekyll [1]. The whole build process for the static page is compatible to the GitHub pages [2] infrastructure, which means it can be built completely with and without GitHub and as well as deployed as a GitHub page. Further details can be obtained from the README in the GitHub repository. The page also contains a html version of the JACK API documentation and some of the tutorials and Information were moved to a Wiki provided by GitHub. The sources[3] for the page are hosted as a dedicated repository on GitHub under the jackaudio organization, together with jack1 and jack2. Attached to the repository, you can also find the mentioned Wiki[4]. There is also a dedicated bug tracker for the page attached to the repository of the homepage on GitHub. 2 webpage hosting The page is currently hosted on a webspace owned by Paul Davis, who also owns the jackaudio.org domain. To my best knowledge, only Paul and Stèpahe Letz have currently access to the webspace. Hosting the page on this webspace instead of using the GitHub pages infrastructure directly was a decision made for various reasons. The domain is also associated to the jack mailing lists which made it difficult at that time (2014) to point the domain to GitHub pages instead. Having a page that was not dependent on the GitHub pages infrastructure was a requirement at the time we transitioned from a broken and hacked Drupal installation to a static page. 3 webpage development and deployment The GitHub repository is currently maintained by me with help in form of bug reports, pull requests and edits of the wiki from the community. If I determine (by the rule of thumb) that enough changes to the page have accumulated or a release of jack1 or jack2 occurs, I prepare the page to be pulled and basically send a pull request to the jack-devel mailing list, signalling that the github repo should be pulled to the webspace. Since the page is designed in a way to be compatible with GitHub pages and already set up to work as a GitHub page, it became accessible under the github domain [5], which was nice for development purposes and was supposed to serve as a preview before pulling changes to the webspace. 4 The case of JACK release binaries The page also links to release binaries and source tarballs of jack1 and jack2 (at least it's supposed to). These binaries are not included in the git repository since having multiple large binaries inside the repository would make it unfriendly to clone, especially after a few releases. Multiple approaches to hosting the binaries have been discussed. Paul did upload the binaries for jack1 to the mentioned webspace after a release. For jack2, Stéphane decided to use DropBox public files to host the release binaries. The use of tags on the respective repositories of jack1 and jack2 was discussed multiple times. Attaching the release binaries to tags could have solved the hosting problem. Still, there was the requirement to be independent from GitHub so this idea was not followed through. Also GitHub LFS was considered but wasn't ready and released by GitHub in 2014/2015 and also wouldn't really have resolved the issue of depending on GitHub, since the files would have still been hosted on GitHub infrastructure. On a new release, the maintainers would announce new links to the binaries and I would update the site accordingly. It required manual intervention but since release cycles were already long I wasn't too worried about that. 5 how it all came down Over time minor challenges arose. Sometimes it was just GitHub changing some configuration for their jelkyll configuration, sometimes DropBox would limit the number of Downloads, sometimes it would take a few days longer or required a second reminder to get my changes puled to the webspace. At some point Paul decided to step down as the lead developer of jack1 but keeping the webspace and the domain online. Reaction times for getting changes to the webspace became longer (at least it felt like that to me) and then also DropBox terminated their free hosting of public shares. At that point a lot of people were also asking for an update of the jack2 installer on OSX. The whole thing resulted in multiple questions on the mailinglists, reports in bugtrackers all over place on lists and bugtrackers I didn't even knew I was subscribed to, someone even managed to use the review feature on a commit of the jack repo. I did some mitigation on the bugtrackers and after some time went by I made a grave mistake. I went ahead and grabbed the old binaries from archive.org, created tags for the releases of jack2 for windows and OSX on the repository of the homepage and attached the files to these tags. I updated the links on the page, did some additional maintenance and requested the changes to be pulled to the webspace on the jack-devel list. That was intended to be an intermediate solution but you may have already guessed that one part of my mistake: There is a saying, that intermediate solutions are the ones that will never go away, so sad, so true. Second, attaching the binaries to the repo of the webpage confused a lot of people since normally the tag would have been attached to a commit of the jack2 repository. When a tag is created, GitHub automatically creates a source tarball and zip for the respective commit, so that a developer only has to attach the release binaries. I could no do this, since a have no access to the jack2 repository. The problem is, that users do not expect to find the releases attached to the repository of the homepage and also, if you take a look at these tags [6], you will notice that they have the source tarballs of the homepage attached where a user would normally expect the source tarball of jack2. It's a mess right now more so because shortly afterwards I received a release of the new installer for OSX and Windows and now there is another release that uses this suboptimal solution and the old page on the webspace still has the DropBox links. I updatetd the links on the page in the GitHub repo accordingly, hoping that people would search for the binaries on the page after it was (supposed to be) pulled, requested the changes to be pulled to the webspace... that was half a month ago and there was apparently no pull. So that's how we ended up with broken dropbox links on the webspace (jackaudio.org), two* versions of the page (jackaudio. org and [5]) and a whole lot of confusion and frustration about source tarballs containing strange markdown files and not the jack2 source code. The technical problems are actually not that hard to solve, but a think wen have an organizational problem here. There will be a follow up (good news) to this mail where I propose some ways to clear this mess and how to avoid it in the future, it may be a base for discussion and LAC should be a good opportunity to get this sorted out since the most important decision makers will be there. best regards Markus * To be more correct and as a very observant user mentioned, there are three versions since the gh-pages branch of the repo also gets special treatment (see GitHub pages docs for details) but that is not that much relevant for this topic. [1] http://jekyllrb.com/ [2] https://pages.github.com/ [3] https://github.com/jackaudio/jackaudio.github.com [4] https://github.com/jackaudio/jackaudio.github.com/wiki [5] https://jackaudio.github.io/ [6] https://github.com/jackaudio/jackaudio.github.com/releases PS: It's already 1 AM and I am still *jacked* and *pun*ching

6 years, 11 months

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JackAudio May 2017