Linux-audio-user May 2015

linux-audio-user@lists.linuxaudio.org

59 participants
62 discussions

[linux-audio-user] Sub-harmonic generator? (LADSPA or VST)

by Tim Howard

Hello, Does anyone know of a good plugin that will generate subharmonics? I would like to put a little more low frequency "oomph" into my bass track. Preferrable LADSPA, but VST would work, too. Thanks for any help! -TimH

8 years, 3 months

Alternative FluidSynth GUI?

by Dan Capp

Research tells me that QSynth seems to be the only currently available/usable GUI for FluidSynth, but I get big xruns whenever I try and use it. FluidSynth itself doesn't cause me problems (I know because I'm able to use the FluidSynth-DSSI plugin fine in Rosegarden etc). The problem is that I want to use FluidSynth with Ardour3, but Ardour3 doesn't support DSSI plugins yet. So the only solution I have is to find a standalone interface for FluidSynth and then to link up using Jack. I looked at the old GUI 'FluidGUI' but it seems to be so old that it won't properly install on recent versions of Ubuntu. So does anyone know of: 1) A GUI for FluidSynth other than QSynth and FluidGUI?... or 2) An application other than the above 2 which would allow me to load soundfonts? Thanks in advance. - Dan

9 years

OT? Downloaded youtube videos with subtitles

by Ivan K

I was very excited to find a video of the complete Tristan and Isolde on YouTube recently, complete with English subtitles. I used the youtube-dl utility to grab the video, but when I began playing the copy on my hard-drive with totem, to my horror, the English subtitles were not there! To repeat, the subtitles are on youtube.com but not in the .webm file that I downloaded with youtube-dl. Can someone coach me how to download a version with the English subtitles? Or are there subtitles in my downloaded version and totem is just not playing them? Thank you for your help. P.S. On the totem menu under View, there is a command called Subtitles but this prompts me for another file. Is there a subtitle file in addition to the video file that I need to download from youtube? Thanks again.

9 years, 2 months

re Zoom R16

by reSet Sakrecoer

Hi all! I found this old discussion about the Zoom R16 in the archive of LAU. http://linuxaudio.org/mailarchive/lau/2012/3/14/188926 Strangely, in that archive there is a missing reply from Mr. Brett McCoy. (You can find the missing one a the bottom of this archive: http://linux-audio.4202.n7.nabble.com/Zoom-R16-td7748.html ) Mr. McCoy claims to have enabled the Zoom R8 (yes, there is quite a difference between r16 and r8) as a multi-input soundcard for ardour and also as a control surface in 12.04 64bits. There is no information as to which driver is being in use in his post. And searching the web only leads me to various WIP to get the R16 running on linux. My question is, has anyone got any news about this device and a possible drivers? Specifically to Mr. Brett McCoy: what driver did you use to make jack aware of your r8? Thank full for any hints, yours, -- Set Hallström AKA reSet Sakrecoer http://sakrecoer.com

9 years, 2 months

New hardware setup for recording (not same as existing threads)

by Martin Cracauer

I am also looking to have a conversation about recording hardware, but not quite the same as the PCI one. Short story: If I wanted to have a combination of two separate devices, analog->ADAT unit and ADAT->Linux@computer, what would I buy? Long story: The way that I did quality recordings so far: - use a quality preamp from mic to S/PDIF optical - use a USB soundcard with (under Linux) working S/PDIF in - jackd of course - depending on hardware there might be a separate piece in front that converts symmetric microphone level to line out, but right now my first thing does both mic level and line level well I really like how this is separating out the [analog part, A/D converter] and the [thing that needs a Linux driver]. Now I can change one or the other and don't get utter breakdown on software changes. I have hardware pieces for which this works great... ish except for some USB unreliability. Now, the careful observer will notice that this is limited to 2 channels due to S/PDIF. While I could have more USB soundcards that does not satisfy synchonization since the stupid things with S/PDIF don't take world clocks. My attempts to link multiple jackds have been, well I think everybody here knows that this exactly working well. So I want to get the concept of separating this out further. Now I need: - analog part is a few line in or mic level inputs to ADAT - a "soundcard" that takes binary ADAT and gives me Linux-able input. Ideally I would like this to be 24 bit capable (I don't need > 48 MHz but I'd like > 16 bit) - once there I could add more sync ADAT takes a world clock I wonder whether somebody has recommendations for these two parts. Digital part with great Linux support, and what do I use for analog to ADAT? My computers still have native PCI, but... well to be honest PCI sucks, USB sucks, Firewire is old. Is anything Thunderbolt out yet that does ADAT to Thunderbolt with open source Linux drivers? Haha, very funny. Can we make one? Sorry for the long post. I hope the concept makes sense. I really like this more modular setup that allows you to toss one thing at a time and don't sit there with nothing on changes. Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer(a)cons.org> http://www.cons.org/cracauer/

9 years, 3 months

Re: [LAU] Behringer and Linux

by mark hadman

Len: > I was looking at the X(R)18. Which acording to Sweetwater has 16 i/o > but on the Behringer site says 18/18. I would hope the manufacture > is the right one. Actually, the sweetwater site says 16 USB channels > in one place and 18 io half a page away... so I can see both numbers > at the same time. :P Fons: > just a quick remark on USB and Behringer. At my new workplace our > boss, in a fit of enlightment and for reasons only known to himself, > decided to buy a cheap Behringer mixer with a USB interface. Nobody > here needs it and it remained in its box for months. > Some week ago I had some spare time and decided to have a look at > it. Connected the USB to my Linux workstation and connected some > headphones to the mixer. Result: with all faders down and just > the HP volume turned up there was a high level 50/100 Hz in the > headphones. Removing the USB connection was enough to stop it. Patrick: >> That is not bad considering that only a few years ago the idea of an >> affordable plug and play digital hardware mixer on Linux was just that, >> an idea. Fons: > It's not a digital mixer, nor did I suggest it was. Just re-editing and recapping this, as I too was confused. Fons was not talking about the XR18 or any of Behringer's new digital range. mH

9 years, 6 months

A couple of new plugins

by Hermann Meyer

been pushed to the guitarix git repository. Those are simulations of the following pedals: Fuzz Face JH1 Fuzz Face Fuller Mods Fuzz Face Roger Mayer Foxey Lady Colorsound Tonebender Sustainer+Muff (Big Muff Pi) Screamig Bird Hornet High Frequency Brightener LPB-1 Booster Hogs Foot They are generated from schematic files, with our Ampsim Toolkit. http://sourceforge.net/p/guitarix/blog/2015/03/j-hendrix-fuzz-face/ Schematic files (gschem) been included in the tools directory. regards hermann

9 years, 6 months

Re: [LAU] Linux-audio-user Digest, Vol 99, Issue 29

by Gilberto Agostinho

Hi Rui, On 31/05/15 14:00, linux-audio-user-request(a)lists.linuxaudio.org wrote: > qjackctl >= 0.3.13 has this "don't show this message again"... Thanks a lot, I was not aware of that. This should solve it then. Cheers! Gilberto

9 years, 7 months

minimizing qjackctl

by Gilberto Agostinho

Hello all, Every time I minimize qjackctl to the tray, the following pop up message appears: Information - JACK Audio Connection Kit The program will keep running in the system tray. To terminate the program, please choose "Quit" in the context menu of the system tray icon. Is there any way of disabling this? It's very annoying to make an extra click to close this every single time I minimize qjackctl. Thanks in advance! Best, Gilberto

9 years, 7 months

[ANN] x42-plugins-20150530

by Robin Gareus

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ahoy! Spring cleaning is over and before the summer heat takes over here's something to shake off the winter from the previous release. x42-plugins is a collection of cross platform LV2 audio/midi plugins, currently featuring over 80 plugins from 11 repositories. https://github.com/x42/x42-plugins http://gareus.org/misc/x42-plugins/x42-plugins-20150530.tar.xz (sha1sum 1a16a8ceff1f279ba92b9ca5c12aeb668725794b) enjoy, robin Significant changes since the last release (20141101) * fil4.lv2 [new] (equalizer) - 4 Band Parametric with additional High/Low shelfs and Hi/Lo Pass and graphical display. Based on Fons Adriaensen LADSPA fil-plugins - equivalent analog gain (zero phase shift) at nyquist - zero latency * meters.lv2 (measurement & visualization) - new BBC M6 (mid/side) meter - fix port label for true-peak meter - combined GUI shared lib (dramatic reduction of deployment size) * balance.lv2 (stereo conditioner) - fix texture clamping (issues with some graphics card) - add multisampling (nicer graphics) * convo.lv2 (zero latency convolution) - remember display (and announce) last/currently used IR - tweak GUI-less mode (allows host to set/query IR file; automatable) - reset channel assignment when replacing the IR file (mono, stereo, true-stereo modes) * midifilter.lv2 - fix potential overflow of midi-delaylines * all plugins: - update GUI font-scaling where applicable - various openGL fixes (GL context separation) - portability issues all plugins now run on Linux, OSX, Windows and various CPU architectures. - gtk variant has been deprecated (needs explicit BUILDGTK=yes) For a complete list of changes, please see the individual repositories: https://github.com/x42/balance.lv2 https://github.com/x42/convoLV2 https://github.com/x42/fil4.lv2 https://github.com/x42/meters.lv2 https://github.com/x42/midifilter.lv2 https://github.com/x42/mixtri.lv2 https://github.com/x42/nodelay.lv2 https://github.com/x42/onsettrigger.lv2 https://github.com/x42/sisco.lv2 https://github.com/x42/tuna.lv2 https://github.com/x42/xfade.lv2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJVaiqpAAoJEKCQvOAs9X8EVDQQAJUSH+KzFs8Jgo49yWZMRlRf +Idc1c90DHxQbCN9l0MsAqpO00VowTfwaSu9Baw41/HAXXLHjgo+4FmODY0gT5zU NhkLHtUgDgYIFYRPLojcTd/dZfpCD2qoS9oqpnLMcHvF4gHMy8TY0wUPMLo8ZT4w ZFOU1cnKpnq/Su66AOPbPZDaZp1csM6qNVRNeKShq7dFKo+eu7p6Npmmtfu5/B1t 1/5TEHIxgSuq6jLPr6qRgFpGr19JQ/66QLbOaSY97VKGUCvA9tFsaNmYKZkIlvbO MyhCIbIkCch2ero3uREYZyxht4El+HFPVQUHcIuyO6iKVg+CY6NxgVkh+8dhKuxW Efg5o9hKi+ZpgU6VeA/he2MMoEmwWtqGkj4qWMy09mqpQac2m66Q8ghq1712MDez tJ/D3SyIpzAY8Ygt6hHX6Tkn5wAOBBtwn742N5V2nSLHC+hqwI/Pa/LzoiSjYZFz xsOckhDP22Xp1NZ6+1A4rJEHvgRUxkch8wga8OFyXPn/KtOIkdDyu1+nikQzsMBx 2U2jZbchEYyz5ccvrRa2Pz00ZJqbrqu6SNXOWxW+c+e8y7ejadfHlg2pDt5QVI1e B0AAwEsMx+DXBB4qclUPfQ+EU89V0bu+yqAM5yEZ6qi+VV9LmYOKup6x7riV0ylk giTzh+qq9kToIPJ31qv9 =bQoK -----END PGP SIGNATURE-----

9 years, 7 months

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Linux-audio-user May 2015