Wednesday, 2015-05-13

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falktx`the low-quality video of the carla workshop is live09:40
falktx`http://lac.linuxaudio.org/2015/recordings/workshops/falktx_carla_288p.webm09:40
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white1what's the most high-quality way to record in jackd from playback?11:56
falktx`if you record in float wav format, it's always going to be 100% equal to what you hear12:03
falktx`jack_capture can do that. see cadence-render for an UI for it12:03
white1i know about jack_capture is it similar to alsa_out or not?12:08
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white1i came across zita-j2a client and it's said it's higher quality than alsa_out and i wonder if system:playback is the same thing as alsa_out?12:09
white1i mean system : playback12:10
falktx`those have nothing to do with capturing audio12:10
falktx`alsa_in/out and zita-a2j/j2a are to bridge alsa and jack audio together12:10
falktx`jack_capture is to record audio as it's being played12:11
white1so jack_Capture is the best way to record in jackd?12:12
yann-kaeligwhite1: see jack capture as you audio card input12:13
falktx`the other tools you mentioned do not record audio12:13
white1i have 2 audio cards and i had strange thing that i set qjackctl to hw:1,0 but jack used hw:2,0 instead12:14
falktx`is that related to the previous question?12:14
white1yes12:14
falktx`how so?12:15
falktx`didn't you want to capture audio from your pc?12:15
falktx`or do you want to capture audio from outside?12:15
white1listen, jackd ignored settings in qjackctl and used another audio card, i had to use zita-j2a -d hw:1,0 to get additional output because jackd added another card to sysem playback ignoring the settings12:16
white1i want to capture from pc12:16
white1not from outside12:16
white1i used jack_capture all the time but last time when i gave jack_capture command it did not record anything since jack was using the wrong card12:17
falktx`try using cadence instead of qjackctl to configure jack12:17
white1why is cadence better than qjackctl?12:19
white1my cards are assigned numbers in random order at each boot12:20
falktx`cadence doesn't use numbers, it uses IDs12:20
white1though i indicated the default card in asound.conf strangely the file was ignored12:20
white1i will try cadence then12:21
white1thanks12:21
falktx`asound.conf is useless for jack12:23
yann-kaeligwhite1: what are you two audio card ? take a lok at aplay -l then lsmod |grep snd-* then give the priority of each card module into the alsa.conf file12:26
white1how to give the priority?12:26
yann-kaeligthen again aplay -l and you will see the change12:26
white1i have audigy card, realtek hd card and nvidia hdmi is also deteced as a card and also usb midi adapter is also deteced as a card so i have random numbers assigned at boot12:28
falktx`again, cadence doesn't use numbers12:28
yann-kaeligwhite1: like this options snd-aloop index=0,1 id="LoopCard1","LoopCard2" options snd-hdsp index=2 id="Multiface" This is only an example from my conf, a loopback for non-jack audio applications to became jack compatible and the RME. Then go into qjackctl and configure to the car you want to use globally or for input/output12:28
falktx`it uses device IDs12:28
falktx`they will remain the same across reboots12:28
falktx`yann-kaelig: that is not needed12:29
white1anyway i would like to assign one card as 0 for alsa applications12:30
white1but i think they will observ asound.conf12:30
white1the only thing which irritates is alsemixer because it shows the first detected device12:31
yann-kaeligwhite1: which card is the first device into your aplay -l  output ? actually12:31
white1now?12:31
yann-kaeligyep12:31
white1hda nvidia12:32
yann-kaeligok and so you dont want this one to be the default first card12:32
white1right12:32
white1i want realtek to take index 012:32
yann-kaeligok, to into your alsa.conf give this nvidia module card index=1 and for the realtek module give the index=012:33
white1one moment is it /etc/alsa.conf?12:33
yann-kaelig/etc/modprobe.d/ it really depend of you OS12:34
white1i use gen212:34
yann-kaeligso this is the right folder12:34
yann-kaeliglokk int oit you will find alsa.conf12:34
white1yes it's there where u told12:35
yann-kaeligi know i'm using funtoo ;)12:35
yann-kaeligso you have to change some conf for alsa give the output of lsmod |grep snd-*12:36
yann-kaeligwhite1: pv12:36
falktx`guys guys12:37
falktx`stop12:37
falktx`there's no need to use hw:numbers12:37
falktx`use hw:NAME12:37
falktx`like hw:Intel,012:37
falktx`or hw:USB or hw:CODEC12:37
falktx`aplay -l tells you this value like this "card 0: <NAME>"12:38
falktx`take that <NAME> and use it12:38
white1yann-kaelig: one moment i will paste it12:38
white1yann-kaelig: https://bpaste.net/show/9e3c83aba6f612:40
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aeLiXihrAutoStat1c: why do you prefer jack1 over 2, please?13:46
falktx`jack1 is still supported by the official dev13:47
falktx`jack2 only has minor fixes from time to time, mostly related to network13:47
aeLiXihrfalktx`: okay thanks13:47
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yann-kaeligjack2 is eveloped with the participation of GRAME Computer Music Research Laboratory. And it is much more active than jack1, look at github14:57
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falktx`yes, but do you see what the commits are all about?15:21
falktx`uuids and meta-data are still missing15:21
falktx`how long has it been since jack1 had it?15:21
spectromasdoes jack1 still need patching for dbus?15:22
falktx`yes15:22
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andrew_Have a question about fluidsynth and carla plugin host16:02
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andrew_ok got the fluid synth working but no tux guitar have it installed with jack and it wont show up in carla host16:09
falktx`it never does16:14
falktx`it's blacklisted16:14
falktx`carla handles soundfonts, no need for fluidsynth-dssi plugin16:15
andrew_well then im confused trying to get tux guitar to work,i had to reinstall the iso and now cant seem to get it to work16:16
holsteinthe iso is not working?16:17
holsteinyou reinstalled the OS?16:17
andrew_yes16:17
andrew_sorry really new to all this16:18
holsteinno worries.. its just that, you didnt *have* to reinstall the OS.. you may have chosen to, and details as to why, and how, can be helpful for a volunteer16:18
andrew_oh somehow the computewr seems to have been corrupted16:19
holsteinif the "computer" has been corrupted, then, you wont address that with hardware16:19
andrew_so i did a fresh install of the os16:19
holsteinyou *will* address that with hardware16:19
holsteinnot software16:19
holstein*if* your hardware, for example, is "corrupt", or broken, you cant reinstall the os to "fix" that16:20
holsteinso, is your computer corrupted? if so, how?16:20
falktx`is tuxguitar-jack installed ?16:20
holsteinbios? bad hard drive? bad memory?16:20
andrew_well nothing would open it was running real sluggish no i think i got a virus16:21
holsteinyou "think"? you got a virus in what, kxstudio?16:21
holsteinnot likely..16:21
andrew_i dont know but i reinstalled the os yesterday and everything seems to work now16:21
andrew_tux-guitar jack is installed16:22
holstein*everything*? but, not tux guitar? and what else?16:22
andrew_well right now everything seems to work but tux guitar and yes i installed tuxguitar-jack16:23
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andrew_tux guitar loads up but says midi system unavailabe16:26
andrew_under midi sequencer in tuxg i have it set to use jack sequencer16:28
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andrew_ok i figured it out i missed some settings16:30
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ssj71falktx`: are the repos in the middle of changing or is my setup just too weird now? I can't install ardour417:19
falktx`they changed a bit17:19
falktx`if you have issues, update the sources again17:20
ssj71hmm. still no go. I updated to 15.04 so I'm trying to reinstall them17:22
falktx`try a purge, the update will have stuff disabled17:25
falktx`sudo apt-get purge kxstudio-repos17:25
falktx`then enable them again17:25
falktx`(see new instructions on site)17:25
ssj71ah I did a install --reinstall. I'll purge first17:26
ssj71I did the new instructions, but should have purged first17:27
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ssj71ok I got it thanks17:31
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falktxit's here now in "high-quality"21:15
falktxhttp://lac.linuxaudio.org/2015/video.php?id=47&h=57621:15
LAbotTitle: LAC 2015: Video: "Playing live with Carla" by Filipe Coelho (at lac.linuxaudio.org)21:15
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falktxI can't watch myself, too weird21:19
falktxbut tell me what you think21:19
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