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20662 discussions

Music: Buta - Help find a genre for this music ?

by jonetsu

Hello, Here's one I just made. I am stuck when it comes to find a genre for this. Rock ? Progressive rock ? Can you suggest something ? Comments welcomed ! https://soundcloud.com/nominal6/buta Cheers.

8 years, 9 months

St Etienne university website (LAC2017).

by Will Godfrey

Anyone else unable to reach this? I've been trying though the afternoon, but each time, after a very long delay end up with just a blank page - not even an error message :( Not seeing problems anywhere else. -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

8 years, 9 months

preventing pulseaudio from capturing a certain audio device

by Michael Jarosch

Hi, there! I've searched for this topic and the only thing I got were some obscure methods to keep some usb-devices from being occupied by pulseaudio... So, I thought, I'll ask the pros... Don't want to cause any fight between pro- and con-pulseaudio-users. I like pulseaudio very much on my laptop, but there are some circumstances, where I'd rather have more control about pulseaudios behaviour. I have a nice firewire device named ESI QuataFire 610, which is supported by FFADO _and_ ALSA. Problem is, when I plug in the QuataFire, pulseaudio grabs it. But this device is not made for desktop audio. After some seconds doing nothing, pulse sends it to sleep. Waking up, f.e. when the desktop makes some noise, or - whatever - some jabber-message comes in, does take some time, so, the event is really over, already, when a tail of a sample comes through the speakers... Another one: pulseaudio grabs the QuataFire with a certain samplerate I'm not supposed to change and I want to start jackd to make some recording in _another_ samperate, jackd won't start or the QuataFire gets mad or another unedifying thing happens. That sucks. Long story short: If I could tell pulseaudio not to care about the QuataFire (or any other certain device), everything would be easy to handle. Does pulseaudio has such a feature and how can I use it? (I've tried the terminal, but I haven't found it.) And if not - and some pulseaudio-dev is reading this - then put this feature on the wishlist, please! Greets! Mitsch

8 years, 9 months

Re: [LAU] using Jack an interface to ecasound

by john gibby

> Hi, > I'm having trouble setting up Jack to interface between my digital piano > application (pianoteq) and the ecasound audio processing app. I'm using > ecasound with Ladspa plugins to create a crossover network. Ecasound > splits the 2 pianoteq channels into six (woofer, mid & tweeter), and sends > them to my analog outputs through alsa. I have it working, with jack & > qjackctl, but the buffer size that jack is presenting to the digital piano > app is 1024, about 10x bigger than I want. I would like pianoteq and > ecasound to run synchronously with minimal latency. At first I thought I > could just call jackd -d ecasound -p 128, but of course ecasound is not > one of jack's supported backends. So I've been using the "dummy" backend, > and using qjackctl to connect ports from pianoteq to ecasound. That works > fine, but I can't manage to configure the buffer size down to 128, even > though I start up ecasound with -i jack -b:128, and I also go to setup in > qjackctl and specify buffer size 128 for "dummy". When qjackctl brings up > the jack server, the buffer size gets overridden to 1024; I see the message > in the log. What am I doing wrong? Is Jack the wrong approach, when it is > ecasound, not jack, that writes to alsa? > Thanks very much! > John > Msi mb with i5 3ghz, AVS Linux > > > > -- Sent from Gmail Mobile

8 years, 9 months

[LAA] [LAD] First release of GxPlugins.lv2

by Hermann Meyer

Hi I like to announce the first release of GxPlugins.lv2 GxPlugins.lv2 is a set of mostly analogue guitar pedal simulations as LV2 plugins, simulated with the guitarix ampsim toolkit. They contain the following plugs: GxBottleRocket.lv2 - -> tube based preamp pedal GxHotBox.lv2 - -> tube based preamp pedal GxVBassPreAmp.lv2 - -> transistor based Bass preamp GxSuppaToneBender.lv2 - -> transistor based preamp GxHyperion.lv2 - -> transistor based Fuzz pedal GxVoodoFuzz.lv2 - -> transistor based Fuzz pedal GxSaturator.lv2 - -> saturation plugin GxVintageFuzzMaster.lv2 - -> transistor based Fuzz pedal GxSuperFuzz.lv2 - -> transistor based Fuzz pedal GxVmk2.lv2 - -> transistor based solid stage preamp GxUVox720k.lv2 - -> transistor based solid stage preamp GxSlowGear.lv2 - -> volume swell plugin GxGuvnor.lv2 - -> transistor based overdrive pedal GxToneMachine.lv2 - -> transistor based Fuzz pedal I hope they may be useful for the one or the other. Build instruction and screenshots may be found here: https://github.com/brummer10/GxPlugins.lv2 the release zip file is located here: https://github.com/brummer10/GxPlugins.lv2/releases regards hermann

8 years, 9 months

Re: [LAU] using Jack an interface to ecasound

by john gibby

No problem, Edgar. I think there is a lot of good information in this thread, I wonder if it is searchable in some way because it could help others. I really appreciate all the help and all the inputs are helping me learn more things. On Jan 21, 2017 4:45 AM, "edogawa" <edogawa(a)aon.at> wrote: Hi John, Am 21.01.2017 um 08:26 schrieb john gibby: > I booted my LiveCD and saw that the dpkg output there is just the same as > for my regular system (on solid-state drive). I'm glad to know that I have > jack1 and not jack2, though I'm still not really sure I understand > completely, since the jack process I get is named jackdbus. For now, I > stopped using the jack_control shell script and am just using qjackctl to > bring jack up, and still, the process name is jackdbus. I thought jackdbus > was jack2... > As this has become more and more of a mystery, I have investigated a little more. reading the AVLinux user manual, particularly the section on software management, I was able to locate where the jackd packages come from, and that is in fact the kxstudio repos. once I found that out I was able to inspect the build logs for the jack package here: https://launchpadlibrarian.net/229691222/buildlog_ubuntu-xen ial-amd64.jack-audio-connection-kit_2%3A0.124.2~20151211-2~ xenial1_BUILDING.txt.gz and it turns out that it has the jackdbus patch applied. So this part of the mystery is resolved, and your system seems to be in good shape. I have to apologize for adding to confusion and leading you on the wrong track, just remember I'm not familiar with AV Linux (have looked at it several times in the past 15 years but never regularly used it...) and this 2016 version is significantly different from previous ones in that it incorporates the kxstudio repos as a core part, which i didn't realize at first. I'm really sorry for that. As for your crossover filter network, I've never tried to do such a thig in software, so I have to pass that on to more knwledgable folks... Cheers, Edgar _______________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-user

8 years, 9 months

organ stop

by tom haddington

Hello,List! This isn't directly a Linux topic, but many users on this list have experience with pipe organs. A friend of mine forwarded me this piece: https://www.youtube.com/watch?v=ii3l44_xD2s The stop in question, the Vox Humana, can be heard at 1:27. Apparently, it's unique. Can anyone please tell me a little about how this one works? i hear a very early formant filter and am wondering just how this might be mechanically accomplished. Thanks! Tom

8 years, 9 months

Re: [LAU] organ stop

by tom haddington

Hello, Jeannette-- Thank you for the reply. it's not a formant filter. It's a reed pipe with a resonator. Wikipedia > has this to say - and probably to show on the matter: > https://en.wikipedia.org/w/index.php?title=Vox_humana > My apologies, Jeannette. "Formant filter" was a little misleading on purpose, more like bait. But now that a couple people have bit, i'll be more accurate. Ralf's link to organ stops contains a good demonstration of a vox humana: http://www.organstops.org/_sounds/CulverAcademy/VoxHumanaArpeg.mp3 It does change formants slightly, but nowhere near as dramatically as the basilica organ. So then, how did the boys from Weingarten accomplish such a drastic change in vowels? i've found a highly technical article on reed pipes. It may be above my head, but i'll try to read it before forwarding the link. Thank you, again, Jeannette! Please take care. Tom

8 years, 9 months

[solved] Focusrite 18i20 balanced -> unbalanced

by Ralf Mardorf

Hi, I don't know what solved the issue, but actually the output sound is ok. It's still not in the same class as RME, but from good hifi quality. For the cable plugged into channel 2 of the Focusrite only tip and sleeve are soldered. For the cable plugged into channel 1 of the Focusrite only tip and sleeve are soldered, too, but by a crocodile clip cable I connected and disconnected ring with sleeve [1]. There's neither a difference in volume, nor in tone, with ring and sleeve short circuit or not. A big surprise was, that comparing the output of the Focusrite, with the output of a CD player, everything was ok yesterday, when the testing was done. I couldn't reproduce the bad sound I experienced before. The output level of the Focusrite was ok as well. No other analog audio cables were connected to the other channels. Perhaps some of the other audio cables, connected to other outputs caused problems by the tests, I made a while ago. However, this morning I checked channels 3, 5, 7 and 9 against channel 2, again with a short circuit and without it and after that I compared channels 4, 6, 8 and 10 with channel 9, but only without a short circuit. And finally I repeated to compare channel 1 and 2 with a CD player. Everything sounded very well. With linux 4.9.0-rt1 it's possible to go down to 32 frames at 48 KHz, getting lots of inaudible xruns, at 16 frames as well as 64 frames the interface is completely unusable. At 128 frames it's the same as for a vanilla kernel with threadirqs, just scrolling with the USB mouse wheel in roxterm usually does cause issues, very seldom a random xrun could happen, when switching to another window. At 256 frames it seems to be absolutely stable, however, it seems to be usable at 128 frames, with linux-rt as well as a vanilla linux with threadirqs. FWIW using another USB cable at 128 frames doesn't make a difference. Actually it even seems to be usable at 32 frames, the xruns were inaudible. I don't know why it's completely broken at 64 frames. 16 and 64 frames cause long interrupted audio signals. Regards, Ralf [1] http://picpaste.com/pics/IMG_2250_unbalanced.1484895640.jpg

8 years, 9 months

Toggle Jack Transport CLI

by Yassin Philip

Hi lista :) Using an i3 <https://i3wm.org/docs/userguide.html#exec> shortcut, I can control my jack transport from everywhere, even when no jack application has focus : bindsym $mod+p exec echo play | jack_transport bindsym $mod+Shift+p exec echo stop | jack_transport Thanks to FalkTX for the pipe trick BTW, I saw that on linuxmusicians ; This is very cool if you have some sort of wireless keyboard, but as you can see it's two different keystrokes, how do I make it so <command> toggles play/pause? Alternatively, how do I know when jack transport is rolling, so I can hack my way into making my own toggle script? I did my homework and read the inline --help of all the available jack commands on my machine : ⚡ jack_ jack_alias jack_freewheel jack_monitor_client jack_simple_client jack_bufsize jack_iodelay jack_multiple_metro jack_simple_session_client jack_capture jack_latent_client jack_net_master jack_test jack_capture_gui jack_load jack_net_slave jack_thru jack_connect jack_lsp jack_netsource jack_transport jack_control jack_metro jack_rec jack_unload jack_cpu jack_midi_dump jack_samplerate jack_wait jack_cpu_load jack_midi_latency_test jack_server_control jack_zombie jack_disconnect jack_midiseq jack_session_notify jack_evmon jack_midisine jack_showtime But found no way to detect the transport status ; Is there a way to know it? yPhil -- Yassin Philip - New album out NOW http://yassinphilip.bitbucket.org

8 years, 9 months

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Linux-audio-user