Linux-audio-user March 2013

linux-audio-user@lists.linuxaudio.org

114 participants
126 discussions

Re: [LAU] 'Modular' midi controller for keyboard

by rosea.grammostola

On 03/29/2013 03:03 PM, Len Ovens wrote: >>> Las once told me that the driver should see PCIe exactly as it sees >>> PCI, but I don't know that any of the RME cards (for example) have been >>> tested. >> >> I am using a PCIe card for my RME Multiface II, it shows up as a PCI >> device and works perfectly. > > That's good to know. I wonder if it's true of the 9632, as well. > > Rich.. > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user > Delivered-To: rosea.grammostola(a)gmail.com > Received: by 10.52.181.41 with SMTP id dt9csp60459vdc; > Fri, 29 Mar 2013 07:03:21 -0700 (PDT) > X-Received: by 10.66.163.101 with SMTP id yh5mr4592185pab.22.1364565800295; > Fri, 29 Mar 2013 07:03:20 -0700 (PDT) > Return-Path:<len(a)ovenwerks.net> > Received: from scott.cbbs.org (scott.cbbs.org. [207.200.139.18]) > by mx.google.com with ESMTP id i8si3741089pao.188.2013.03.29.07.03.19; > Fri, 29 Mar 2013 07:03:20 -0700 (PDT) > Received-SPF: neutral (google.com: 207.200.139.18 is neither permitted nor denied by best guess record for domain of len(a)ovenwerks.net) client-ip=207.200.139.18; > Authentication-Results: mx.google.com; > spf=neutral (google.com: 207.200.139.18 is neither permitted nor denied by best guess record for domain of len(a)ovenwerks.net) smtp.mail=len(a)ovenwerks.net > Received: from ssl.ovenwerks.net (unknown [IPv6:::1]) > by scott.cbbs.org (Postfix) with ESMTP id 454915BC36; > Fri, 29 Mar 2013 07:03:13 -0700 (PDT) > Received: from 172.17.128.37 > (SquirrelMail authenticated user len) > by ssl.ovenwerks.net with HTTP; > Fri, 29 Mar 2013 07:03:13 -0700 > Message-ID:<069be0c64bee8d96504fae685454fda6.squirrel(a)ssl.ovenwerks.net> > In-Reply-To:<515589AB.60404(a)gmail.com> > References:<514B2E31.6020707(a)gmail.com> <514B5867.9090305(a)autostatic.com> > <514C3F75.2010909(a)gmail.com> <514C4892.6060006(a)autostatic.com> > <514C562B.3090509(a)gmail.com> <514C58B6.4050905(a)quirq.ukfsn.org> > <9c32dcea1f92a0bf2f9305ae70fcc461.squirrel(a)ssl.ovenwerks.net> > <514C71ED.1000802(a)gmail.com> <1363969883.4783.10.camel@archlinux> > <514CA691.6000900(a)autostatic.com> <514CB6E0.2050001(a)quirq.ukfsn.org> > <515589AB.60404(a)gmail.com> > Date: Fri, 29 Mar 2013 07:03:13 -0700 > Subject: Re: [LAU] 'Modular' midi controller for keyboard > From: "Len Ovens"<len(a)ovenwerks.net> > To: "rosea.grammostola"<rosea.grammostola(a)gmail.com> > Cc: linux-audio-user(a)lists.linuxaudio.org > Reply-To: len(a)ovenwerks.net > User-Agent: SquirrelMail/1.4.22 > MIME-Version: 1.0 > Content-Type: text/plain;charset=iso-8859-1 > Content-Transfer-Encoding: 8bit > X-Priority: 3 (Normal) > Importance: Normal > > > On Fri, March 29, 2013 5:31 am, rosea.grammostola wrote: >> On 03/22/2013 08:54 PM, Q wrote: > >>> Actually, it does have rotary knobs -- they are knobs and they rotate >>> between fixed end points, which is what knobs do. >>> >>> What it doesn't have is rotary ENCODERS (i.e. the endless variety). >> >> When do you need rotary knobs and when rotary encoder knobs? > > For a remote control such as this you may have a rotary pot, a rotary > encoder or a rotary pot with a motor. > > - A rotary pot will stay where you left it, it is totally manual. If > turned to 100% it will stay there. > > - A rotary encoder can always increase or decrease beyond 100% or 0%... > this doesn't sound useful, but in the case of using a preset it can be. > if the knob is set to 100% and a preset is loaded that now sees that knob > as 50%, that knob can still be increased, that is it still has full > range. However, there can be no markings on it... that is you cannot look > at it and know it is at 60%... unless there is some kind of indicator > that uses LEDs or LCDs. > > - A rotary pot with a motor, has a small motor that moves a 0 to 100% pot > to a preset level under program control. So if you have set the pot > manually to 40% and then load a preset where that control is now 73%, the > control will move (physically) on it's own to 73%. So any marks on the > pot or around it will be accurate. This is the most expensive option (if > you can find it) and I don't know if it is worth it in any case. I would > question how road worthy it would be. It is used extensively for analogue > mixer automation... in places that have someone to maintain things. > > an encoder would probably be the nicest thing to have if you want to load > presets. however, if you are used to glancing at the knobs to see where > they are set, you would also want some kind of light indicator to tell you > where the knob is set... The only problem is that the program you are > controlling has to provide feedback when started or using a preset. > > normal rotary pots will always be where you left them, but... when powered > up the controller sends knob positions to the computer, now you load the > program you are using it to control. That program does not know where the > controls are so either the program has to ask, or send something that says > set this to something so the controller can say, "ok, now change that to > where I am set physically", or the controller has to send all it's setting > at that time. I don't know how these boxes handle this. I suppose the > controller could send all the settings at intervals. > > > Wow, thx for your wikipedia contribution ;) The bcr2000 has rotary encoders with LEDS. The bitstream 3X does have potentiometers and it's possible to set the 3X in such a way that the know has to pass the value of an control in a certain software, before it gets 'on'. Potentiometers seems to have the advantage of being more accurate and have a more analogue feel. The question is whether the X3 is good for controlling softsynths like AMS / Ingen and stuff like SuperCollider. Or are rotary encoders better for this. \r

11 years, 8 months

Souncard advise (PCI express)

by Julien Claassen

Hello everyone! I want to buy a second soundcard. I had considered getting another MAudio Delta 1010LT, since they are just perfect. But someone alerted me to the thought, that PCI is slowly dying and it might not be such a good idea to get another piece of equipment, that might no longer be supported with the next board. Right: E-MU 1212m Anyone got one, has experience with it? If not: I want something multi channel with analog I/Os, at least one S/PDIF or wordclock to sync it to my Delta and create a big virtual soundcard. Price limit is about 250 EUR. Last remakr: Ihave ssen the note about E-MU 1212m card on alsa-project, its usabilityis unknown/not tested yet (officially). Any advse is welcome. Warm regards Julien ---------------------------------------- http://juliencoder.de/nama/music.html

11 years, 8 months

HOWTO create a simple youtube video for musical purposes

by jonetsu＠teksavvy.com

Hello all, I have a musical piece of some 4 minutes, recorded in Ardour and currently saved as an ogg file. I would like to make it Youtube compatible in the most simplest way. Like in having one single picture being shown while the music plays. Not even two or three, just one. And the music. That would be the video. The picture is one I've taken, and is of ridiculously large format which I can resize using Image Magick. How can such a video be created ? I have no idea how to do that. Hopefully this thread could also be useful to others. Much thanks in advance ! Cheers. NP: "The Foundation" - Thievery Corporation

11 years, 8 months

MusE 2.1.2 released

by Robert Jonsson

Hi all, Time for another update for general consumption, minor changes done but quite a few of them! Nearly arbitrary list of changes from the changelog: - Allow reading old drummaps for new style drumtracks - Added metronome icon in main window - Fixed moving events with keyboard in Drum editor - Added theme support, Light, Dark and Ardour so far - Added missing line draw shortcut (F) to drum editor. - Added new french translation from Yann Collette - Added: Pan and Zoom tools to editors. P + Z shortcuts. Added a Settings item for alternate behaviour. - Fixed: Pianoroll and Drum Editor 'Snap' boxes not remembering 1st or 3rd columns. - Fixed: Arranger 'Snap' was not stored or remembered. - Fixed: Accelerator buttons shift/ctrl/alt for moving/copying/cloning / restricting movement. - Fixed: Shift key restricting movement: Ignore snap setting now. - Fixed: Resize shift key ignore snap setting now. - Fixed: Draw new item shift key ignore snap setting now. - Fixed: Shift key was not snapping to vertical. - Fixed: ALL 'Speaker' related playing of notes. Works with new notes, moving notes, piano press etc. - Fixed: ALL 'Speaker' related notes now send true note-offs instead of zero-velocity note-ons. - Fixed: Drum 'Cursor' mode was playing double notes. - Fixed: New Drums 'Cursor' mode and instrument up/down movement was broken, jumping all over the place. - Added prebuilt PDF of manual (work in progress) - Improved: Shortcut listings: Added Wave/Score categories. Re-categorized several keys. Updated README.shortcuts - Improved: Right-click menus expanded. Now also shows 'Tools' menu when clicked on parts. - Added choice of new metronome with different sounds and adjustable volume. - Fixed gain adjustment with 'Other' choice in wave editor, it was reversed For more information and additional changes see the full changelog: http://lmuse.svn.sourceforge.net/viewvc/lmuse/trunk/muse2/ChangeLog?revisio… Find the download at: https://sourceforge.net/projects/lmuse/files/ MusE on! The MusE Team

11 years, 8 months

building soft from drobilla.net on archlinux

by Fero Kiraly

Hi, was anybody successful to build Ingen <http://drobilla.net/software/ingen/> or machina <http://drobilla.net/software/machina/> on archlinux? fk.

11 years, 8 months

Re: [LAU] UEFI (was How to turn off hyperthreading?)

by Chris Caudle

> Date: Fri, 29 Mar 2013 07:40:30 +1100 (EST) > From: "Patrick Shirkey" <pshirkey(a)boosthardware.com> > Message-ID: <57377.5.12.188.231.1364503230.squirrel(a)boosthardware.com> > UEFI is a "microsoft" rootkit and backdoor so "they" (as in "They Live") > can spy on you and take control of your computer any time "they" want. Have you ever used a machine with UEFI? Have you ever looked at the specification? You're coming off as a bit of a nutcase. Perhaps you forgot, perhaps you were ignorant of the fact, or perhaps you are just trolling, but Microsoft did not support UEFI for the first several years it was around. Intel developed UEFI because legacy BIOS can not work on Itanium processors. For the first several years of UEFI implementations Linux and a few Unix variants were the only thing you could use. I can't deny that Microsoft has steered implementations in a direction they want recently, but that was true of legacy BIOS as well. -- Chris Caudle

11 years, 8 months

Re: [LAU] UEFI (was How to turn off hyperthreading?)

by Chris Caudle

> Message: 18 > Date: Tue, 26 Mar 2013 13:31:59 +0800 > From: Simon Wise <simonzwise(a)gmail.com> > To: linux-audio-user(a)lists.linuxaudio.org > Subject: Re: [LAU] How to turn off hyperthreading? > Message-ID: <515132CF.4010901(a)gmail.com> > > Because UEFI is designed to prevent hardware being booted unless it is > into an unmodified and signed OS version You are confusing UEFI, SecureBoot[TM], and Microsoft requirements concerning implementations of certain options. I have booted unsigned operating systems plenty of times on a UEFI system. > and this hardware lock can be set up so it cannot be turned off That would refer to a particular implementation of SecureBoot, which is an optional part of UEFI. Not every system with UEFI necessarily supports UEFI, most which do allow you to disable. > For intel devices microsoft does not require UEFI to be set so it > can't be turned off, for non-intel tablets it does. So Linux is > locked out of any such devices. So don't buy ARM tables with Windows-RT on them. > and be very cautious of UEFI on any device since it means you no longer > have control of hardware you thought you had bought and now own. Not true at all. UEFI is just a specification for a boot environment. It has a lot of cool features and is a lot more flexible than legacy BIOS. If you are concerned that the secure boot feature might be locked down, just make sure to ask whether secure boot can be disabled and how key management is handled if you are considering buying a device with UEFI. -- Chris Caudle

11 years, 8 months

Console tools for linux audio and other things

by Egor Sanin

Hey list, On 3/25/13, Harry van Haaren <harryhaaren(a)gmail.com> wrote: > On Mon, Mar 25, 2013 at 4:30 PM, Egor Sanin <egor.sanin(a)gmail.com> wrote: > >> For music playback, you can use Music On Console >> http://moc.daper.net/ >> > > Neat tool. Didn't know of this one... and I've been looking for a small > lightweight little audio player :) > Egor you should post your info on your Arch setup and all the little > console tools you use, I remember > you showed me a real-cool console wifi manager too, "wifi-menu" was it? Sure, but I think Julien knows much more than I do. This is just for music making: sox: lots of wonderful uses ecasound: recording/mixing/effects a2jmidid: interoperability of alsa and jack midi aj-snapshot: connection manager esjit: another connection manager, for quick and dirty patching mididings: awesome midi handler (use midi for pretty much ANYTHING) meterec: a simplistic multitrack recorder, used mostly for it's console level meter jackctlmmc: drive jack transport with mmc messages midish: really low-level hardcore midi sequencer fluidsynth: you know this one (minus the qt interface) linuxsampler: I really seldom use this supercollider: again, sans gui (scvim styles) sooperlooper: i just love client/server implementations alsa utilities: aseqdump and friends python, bash, ncurses, pyliblo, tmux, vim: scripting delight and of course jack is a given. I may have missed one or two things. Other than that my arch setup is standard, default kernel, etc. As for wifi, hmm Harry, I don't quite remember of a manager program. I just use the following set of commands: # ip link set wlan0 up # iwlist wlan0 scan | less or instead of less use some grep magic to show only needed info and then use netcfg with corresponding config file in /etc/network.d/ to connect. There are many examples that directory, so it's rather trivial. Though now I looked in ArchWiki and there are apparently a few options for interactive console wifi management: wifi-menu, wicd-curses, nmcli I just tested wifi-menu and it's actually quite nice, still I find the straight-up ip/iwlist/netcfg approach more transparent, which appeals to me greatly. Enjoy! I'd love to hear about other console tools folks around here use.

11 years, 8 months

Tray Volume Control for Alsa Loopback Device Not Autostarting

by JH Oh

Hi. Need some help here. I'm trying to route alsa to jack using alsa loopback device following mainly this tutorial(http://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_b…. It's working great except for a trivial matter. I wanted to launch a system tray volume contorller(tried volumeicon and pnmixer) to control the alsa device so put it on the autostart file of openbox, but it won't start. Funny thing is, when I manually run it or even when I logout and in again, it launches. It fails only at the boot time. Any hint for fixing it? Thank you in advance.

11 years, 8 months

How to turn off hyperthreading?

by david

The laptop I'm considering (Zareason Verix 530) as replacement for my current one has a dual-core Intel i3 processor with hyperthreading. Zareason says there's no way to turn off HT in BIOS. I think folk on the list have said that HT causes problems with RT. So how can I disable hyperthreading? Thanks. -- David gnome(a)hawaii.rr.com authenticity, honesty, community http://clanjones.org/david/ http://dancing-treefrog.deviantart.com/

11 years, 8 months

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Linux-audio-user March 2013