Friday, 2015-11-06

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unicornjedihi03:50
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louigiHey everyone!09:19
louigiGood morning!09:19
falktxhi!09:19
louigiNice weather in the city of Berlin09:21
falktxyes09:21
falktxhope it continues09:22
* falktx needs to send the screen monitor back, damn dead pixel09:22
falktxlouigi: how's it going so far in berlin?09:24
louigifalktx: very nice! I am happy here09:25
falktxwhich area are you living in again?09:25
louigiPrenzlauer09:25
louigiBerg09:25
falktxhmm09:25
louigiWell, right now I am at work in Mitte09:25
falktxI'm between potzdammer platz and gleisdreck09:26
falktxthere's a U12 station very nearby09:26
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louigifalktx: we should meet up10:01
falktxlouigi: yes, definetely10:02
falktxI'm doing jello and a cake this weekend10:02
falktxor at least I'll try to10:02
falktxlouigi: I have a ps4 at home :)10:02
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falktxlouigi: want an adress?10:05
falktxnot sure if I should post this on irc, but oh well10:07
falktxhttps://www.google.de/maps/place/Kluckstra%C3%9Fe+34,+10785+Berlin/@52.5025,13.3585513,17z/data=!3m1!4b1!4m2!3m1!1s0x47a8504b72fc2359:0x9aa12c052927e80010:07
LAbotTitle: Google Maps (at www.google.de)10:07
falktxph: 01573 402093710:11
falktxlouigi: you're welcome to come saturday or sunday, or next week10:18
JackWinterfalktx: you at work?  have some time today to see if you also get a different round trip latency everytime you start jack on a usb device?10:45
falktxJackWinter: I can check yes10:45
falktxwe're mounting a white board right now :)10:45
JackWinterbetter to play with computers than doing carpentry ;)10:46
JackWinterit's not everytime you connect, but each time you start the server.  seems to be about 5-6 different values that crop up.10:47
louigifalktx: Are you even in city center? Or you are not moving around the city? =)10:47
JackWinterstill wondering wtf it does that, i suppose something to do with the usb stack10:47
falktxlouigi: center, working10:48
falktxnot moving, I'll be in that apartment until march10:48
falktxJackWinter: can you ping me in 2 hours please? I have to shutdown the pc because dust..10:49
falktxbbl10:49
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JackWinteri'll try to remember, otherwise some other day10:49
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JackWinterfalktx: time to test?12:51
falktxyes12:51
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falktxJackWinter: ok, now I can. what kind of test are you looking at again?13:23
falktxJackWinter: jack_iodelay?13:26
falktxwhat settings?13:26
JackWinterfalktx: well , what happens is that each time i start a jack server (with an usb soundcard), the latency shown by jack_iodelay will be different...13:30
JackWinterdoesn't have anything to do with connecting clients.13:30
JackWinterit happens on all buffersizes13:31
JackWinterso start jack, run jack_iodelay, restart the jack server, run jack_iodelay again, and you will most likely get a different value.  doesn't happen with my rme, but does happen with several computers on several different usb devices...13:32
JackWinterseems to be a couple of different latencies that it gives, not all different.13:34
JackWinterbut seems to vary by a millisecond or so, which is kind of annoying, but i guess not a deal breaker, but i'd like to find out what is doing it and report a bug, as imo latency ought to be predictable13:35
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lasconicHi there13:56
lasconicwhat's the easiest way to install kxstudio on a usb stick13:57
lasconic?13:57
lasconicI read about pendrivelinux, is that recommended?13:57
falktxeasiest way is just dd it14:00
falktxdownload the iso, and run14:00
falktxsudo dd if=/path/to/iso of=/dev/sdX14:00
falktxnothing else needed14:00
falktxuse stuff like /dev/sdc, not /dev/sdc114:01
autostaticJackWinter: this has been discussed on a LAU mailinglist a while ago14:09
autostaticOr LAD14:09
JackWinterautostatic: i brought the topic up, but never got an answer or a confirmation that the problem exists.  unless it's been raised by someone else and i missed it.  am subscribed but don't read the lists regularly14:12
JackWinterwould be nice to at least have a confirmation from someone else preferably with another distro too14:13
olinuxxJackWinter, I think autostatic is refering to this one : http://lists.linuxaudio.org/pipermail/linux-audio-dev/2015-September/036074.html14:15
LAbotTitle: [LAD] JACK latency compensation on USB audio devices (at lists.linuxaudio.org)14:15
olinuxxand/or : this one : http://lists.linuxaudio.org/pipermail/linux-audio-dev/2015-August/036032.html14:16
LAbotTitle: [LAD] Strange Jack1 problem (at lists.linuxaudio.org)14:16
autostaticThat's the one! Thanks olinuxx, of course I couldn't find it myself :(14:16
JackWinterwell the first one is from me, and the second one is an unrelated problem (i think)14:18
olinuxxso you already all at the state of the art of it14:18
JackWinterthat the 2:nd one exists is kind of mind boggling though14:18
autostaticYou mean the extra buffering?14:19
autostaticAnd sorry, I didn't make the link between you and the OP of that thread14:19
JackWinteri mean that latency changes as clients connect and disconnect14:19
JackWinterno, since i use different handles on irc and email, that's natural.  how could you know that we are the same person14:20
JackWintergetting high time to pester paul and fons about that 2:nd bug ;)14:21
autostaticHe he14:21
JackWinterin fact i'd be delighted if all of you could duplicate the topic of my conversation ;)  but i guess it's enough for me if falktx can duplicate it14:22
JackWintergotta run for work now, bbl14:22
autostaticBye!14:22
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falktxsomeone was very generous today17:40
falktxshit, almost forgot about the tests17:40
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falktxJackWinter: using uca20218:00
falktx1st run I get:18:00
falktx  4064.194 frames     84.671 ms total roundtrip latency18:00
falktx        extra loopback latency: 992 frames18:00
falktx        use 496 for the backend arguments -I and -O18:00
falktxthose values are consistent18:00
falktx2nd run:18:00
falktx  4016.105 frames     83.669 ms total roundtrip latency18:00
falktx        extra loopback latency: 944 frames18:00
falktx        use 472 for the backend arguments -I and -O18:00
falktx3d run:18:01
falktx  4016.051 frames     83.668 ms total roundtrip latency18:01
falktx        extra loopback latency: 944 frames18:01
falktx        use 472 for the backend arguments -I and -O18:01
falktx4th run:18:02
falktx  4064.032 frames     84.667 ms total roundtrip latency18:02
falktx        extra loopback latency: 992 frames18:02
falktx        use 496 for the backend arguments -I and -O18:02
falktxJackWinter: seems like with the uca202 the values are not consistent across jack restarts18:02
JackWinterfalktx: thanks, then i guess it's confirmed :S18:03
falktxlet me try a mackie18:03
JackWinteri guess it's gonna be the usb stack and not jack...18:04
JackWinteror the device..18:04
falktx1st run18:06
falktx  3775.030 frames     78.646 ms total roundtrip latency18:06
falktx        extra loopback latency: 703 frames18:06
falktx        use 351 for the backend arguments -I and -O18:06
falktx2nd run18:06
falktx  4063.030 frames     84.646 ms total roundtrip latency18:06
falktx        extra loopback latency: 991 frames18:06
falktx        use 495 for the backend arguments -I and -O18:06
falktx3rd run18:07
falktx  3775.030 frames     78.646 ms total roundtrip latency18:07
falktx        extra loopback latency: 703 frames18:07
falktx        use 351 for the backend arguments -I and -O18:07
falktx4th run, exactly the same as 3rd18:07
falktx*exact* values18:07
falktx5th run18:08
falktx  3823.030 frames     79.646 ms total roundtrip latency18:08
falktx        extra loopback latency: 751 frames18:08
falktx        use 375 for the backend arguments -I and -O18:08
falktxJackWinter: myth confirmed18:10
falktxnow, time to go home18:11
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falktx:D20:48
unicornjedihi again?20:57
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falktxhi..21:00
unicornjedifalktx, hey so I read the whole manual on kxstudio but still am unsure on some things21:00
falktxthis might help http://libremusicproduction.com/articles/demystifying-jack-%E2%80%93-beginners-guide-getting-started-jack21:01
LAbotTitle: Demystifying JACK – A Beginners Guide to Getting Started with JACK | Libre Music Production (at libremusicproduction.com)21:01
unicornjedifalktx, im pretty comfortable with JACK, i'll give this a quick read anyways21:02
falktxthat site has some great tutorials21:02
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unicornjedifalktx, wow thanks!21:04
unicornjedifalktx, so right now i'm kinda confused what applications i should use in my LADISH virtual studio21:05
unicornjediFor example, I really like LMMS but I find that I like ardour for it's automation and audio editing21:07
falktxif you're just starting I kinda have to recommend to NOT use ladish21:07
unicornjediso I want them to work together but i read that LMMS won't sync with JACK transport21:07
falktxright21:08
unicornjediWhen I said LADISH i meant claudia21:09
falktxit's the same21:09
unicornjedioh21:09
unicornjediwhat would you recommend I use?21:09
falktxplugins, or nsm21:12
falktxwith a daw and plugins there's no need for session management21:12
unicornjedifalktx, whats nsm?21:14
falktxnon session management21:14
falktxbut first try a full daw and plugins21:15
falktxfor lmms you can use carla to get access to all the linux plugins21:15
unicornjedifalktx, so when should I use session management?21:16
Yruama_Lairbahello, i'intersted by the current discussion21:17
falktxsession management is only needed when you need to sync projects for different applications21:18
falktxlike say blender + ardour21:18
falktxif you want stuff like synths or fx, the best option is plugins really21:19
unicornjedii see i see21:19
unicornjediso I should use catia in the meantime?21:19
falktxcatia?21:19
unicornjediuhhh21:19
unicornjediwas it carla?21:20
unicornjediidk21:20
falktxif you install carla-git it will appear as a plugin in lmms21:20
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falktxand carla as plugin can load the native linux plugins (dssi, lv2 and vst)21:20
falktxyou can also use a daw that already supports plugins directly21:21
falktxlike ardour, muse and qtractor21:21
falktxthere are some commercial options too, like bitwig, tracktion and renoise21:21
Yruama_Lairbain think lmms support vst natively21:21
falktxlmms supports 32bit windows vsts, not linux ones21:22
falktxwhich btw is broken for ubuntu >= 15.04 :(21:22
Yruama_Lairbaah ok, i didn't because i never used lmms on linux21:22
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Yruama_Lairba*i didn't know21:22
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unicornjedifalktx, thanks for your help m821:23
falktxnp21:23
unicornjedifalktx, do you know any other good guides or tutorials to read up on? Youtube tutorials sux21:24
falktxeverything in http://libremusicproduction.com/tutorials?&page=1 is good21:24
LAbotTitle: Tutorials | Libre Music Production (at libremusicproduction.com)21:24
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JackWinterfalktx: thanks for the help.  kinda sucky result22:36
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