Linux-audio-user January 2018

linux-audio-user@lists.linuxaudio.org

59 participants
67 discussions

[LAU] [Music] Wr: first sounds using the Waverazor

by jonetsu

First sounds using the Waverazor on Linux. drums, synth percussion and bass combo are regular production, the rest are several instances of Waverazor. After a short bit, the combo drops and only Waverazor is heard, including the rhythm synth. No research for sounds was made, these are really the first sounds made with that synth released for Linux yesterday. https://soundcloud.com/nominal6/wr-1 Cheers.

8 years

[LAU] [Music] Soca Philosophy

by jonetsu

Hello ! This piece marks the return of the acoustic guitar. This is a bright, almost airy in its tones, rhytmic piece. Easy listening ? I do not know, but it surely flows by nicely. Synths open and closes the piece while the theme is played on xylophone and cimbalon (Pianoteq). No mysteries here, no melancholy, just bright and open. On the mixing side, 'Soca Philosophy' was mixed using Mixbus32C, the commercial counterpart supporting Ardour development. Approx. 35 tracks were used, 5 busses, and two VCAs. Not many plugins were used if you put aside the x42 EQ used as subtractive EQ on each track, as well as the x42 1/3 Octave Spectrum Display on each track, post fader. The new addition was the use of u-he Uhbik Tremolo on some sequenced tracks to give a stereo rhtythm. The acoustic guitar went trought the usual MPA2 and VLA2 stereo tube preamp and compressors, then through OvertoneDSP's Pulltec emulations. There was a clear problem of integrating the acoustic guitar into the synth layers. Hopefully it turns out not too bad. 'Soca Philosophy' was created in Bitwig and refined and mixed in Mixbus32C. All guitars were recorded in Mixbus32C. System in Linux Mint 18, KDE. And as always, for Pete's sake, I listen to the soundcloud upload and find that it's not really reflecting what I was working on - alas, that's how it goes for now ! https://soundcloud.com/nominal6/soca-philosophy Cheers.

8 years

Re: [LAU] Meltdown – Spectre

by Ralf Mardorf

On Sat, 13 Jan 2018 15:29:27 +0000, Pablo Fernandez wrote: >El sáb., 13 ene. 2018 13:58, Thomas Pfundt escribió: >> However, this site doesn't list your Celeron G as vulnerable: >> https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00088&lang… >> Do you even need to concern with the patch and performance at this >> point? That is interesting news. I'll forward this, since actually it's claimed that all x86 CPUs since the Pentium Pro from 1995 suffer from this issue. Does anybody know how to value this information from Intel?

8 years

Re: [LAU] Curious about the reasons for not using GRUB [Re: Meltdown – Spectre]

by Ralf Mardorf

On Sat, 13 Jan 2018 14:14:58 +0200, Besnik Bleta wrote: >Hello, > >On Sat, 13 Jan 2018 12:54:06 +0100 >Ralf Mardorf <ralf.mardorf(a)alice-dsl.net> wrote: > >> [4] >> Sorry, I'm not using GRUB. > > >If you’ve got a minute, mind listing the reasons for not foing so? >Or pointing me to any resource of the similar spirit? >Just curious. Hi, I noticed that you replied off-list, but since I don't want to answer the same off-list question again and again (I've done this already several times), I'll reply to the mailing list. syslinux.cfg is nicer to edit than grub.cfg. While it's possible to get a similar clean grub.cfg as a regular syslinux.cfg already is by default, I still prefer syslinux.cfg over grub.cfg. I never used the grub auto-thingies, such as the configs for the config or os-prober, since they are just a PITA. The reason for this is that the auto-thingies do not provide I want to get and they run during upgrades, when there's no need to perform those time consuming tasks. Btw. I dislike distros that enforce by package dependencies to install grub, even if another distro already provides the bootloader, so I divert some of this crap: [rocketmouse@archlinux ~]$ cat /mnt/moonstudio/usr/src/dpkg-divert-grub.sh #!/bin/bash divert () { cat<<EOF #!/bin/dash name=\$(echo \$(basename \$0) | sed -e 's/[0-9]\+ *//') printf "\n \033[7m\$(basename \$0) was renamed \$name.real\033[0m\n\n" exit EOF } case $1 in --add) for s in grub-mkconfig update-grub do s=/usr/sbin/$s dpkg-divert --add --rename --divert $s.real $s && divert > $s chmod a+x $s done;; --remove) for s in grub-mkconfig update-grub do s=/usr/sbin/$s rm $s && dpkg-divert --rename --remove $s done;; --list) dpkg-divert --list | grep "local diversion of" ls -hlv /usr/sbin/grub-mkconfig* /usr/sbin/update-grub*|grep -v "gf" ;; *) cat $0; esac exit IMO syslinux has got just one disadvantage compared with grub. Grub doesn't require chainloading. To avoid chainloading when using syslinux my workaround is to move all kernels of different installs on one partition and to bind /boot. [rocketmouse@archlinux ~]$ ls -hAld /boot/ /.boot/*/boot/ drwxr-xr-x 3 root root 4.0K Jan 12 02:43 /boot/ drwxr-xr-x 3 root root 4.0K Feb 17 2017 /.boot/suse11.2/boot/ drwxr-xr-x 3 root root 4.0K Jan 11 09:42 /.boot/ubuntu_moonstudio/boot/ drwxr-xr-x 3 root root 4.0K Aug 27 2013 /.boot/ubuntu_q/boot/ [rocketmouse@archlinux ~]$ grep bind /mnt/moonstudio/etc/fstab /mnt/archlinux/.boot/ubuntu_moonstudio/boot /boot none bind 0 0 Another possible pitfall might be dual-head usage on demand. I don't know if grub is able to handle this, at least syslinux isn't. If an LCD should be connected by HDMI and a CRT by VGA, but the CRT should be turned off, than syslinux doesn't show the menu on the LCD display, while the BIOS is still shown on the LCD display. If I don't want to use the dual-head set-up, I need to disconnect the CRT, too see the syslinux menu. I never tested if grub could manage this better than syslinux. This is my current syslinux.cfg: [rocketmouse@archlinux ~]$ cat /boot/syslinux/syslinux.cfg # http://syslinux.zytor.com/wiki/index.php/Doc/menu PROMPT 0 TIMEOUT 600 UI menu.c32 MENU HIDDEN MENU CLEAR MENU COLOR screen 0;30;40 MENU COLOR border 0;30;40 MENU COLOR title 1;37;44 MENU COLOR unsel 0;37;40 MENU COLOR hotkey 1;37;40 MENU COLOR hotsel 7;37;40 MENU COLOR sel 7;37;40 MENU COLOR disabled 1;37;40 MENU COLOR scrollbar 0;30;40 MENU COLOR tabmsg 0;30;40 MENU COLOR cmdmark 0;31;40 MENU COLOR cmdline 0;37;40 MENU COLOR timeout_msg 0;37;40 MENU COLOR timeout 1;37;40 # Used hotkeys: ^8 ^A ^C ^e ^H ^M ^n ^P ^Q ^R ^t ^V DEFAULT Rt MENU TITLE HAL 9000 LABEL Toolbox MENU LABEL Toolbox MENU DISABLE MENU SEPARATOR LABEL Hardware MENU LABEL ^Hardware Detection COM32 hdt.c32 LABEL Memtest MENU LABEL Memtest^86+ LINUX /.boot/ubuntu_moonstudio/boot/memtest86+.bin LABEL Reset MENU LABEL R^eset COM32 reboot.c32 MENU SEPARATOR MENU SEPARATOR LABEL Arch Menu MENU LABEL Arch Linux MENU DISABLE MENU SEPARATOR LABEL Threadirqs MENU LABEL Arch Linux ^threadirqs LINUX ../vmlinuz-linux APPEND root=LABEL=archlinux ro threadirqs INITRD ../initramfs-linux.img LABEL Pussytoes MENU LABEL Arch Linux Rt ^Pussytoes LINUX ../vmlinuz-linux-rt-pussytoes APPEND root=LABEL=archlinux ro INITRD ../initramfs-linux-rt-pussytoes.img LABEL Cornflower MENU LABEL Arch Linux Rt ^Cornflower LINUX ../vmlinuz-linux-rt-cornflower APPEND root=LABEL=archlinux ro INITRD ../initramfs-linux-rt-cornflower.img LABEL Rt MENU LABEL Arch Linux ^Rt LINUX ../vmlinuz-linux-rt APPEND root=LABEL=archlinux ro INITRD ../initramfs-linux-rt.img LABEL Arch MENU LABEL ^Arch Linux LINUX ../vmlinuz-linux APPEND root=LABEL=archlinux ro INITRD ../initramfs-linux.img MENU SEPARATOR MENU SEPARATOR LABEL Other Menu MENU LABEL Other Linux MENU DISABLE MENU SEPARATOR LABEL Moonstudio MENU LABEL Ubuntu X ^Moon Studio lowlatency LINUX /.boot/ubuntu_moonstudio/boot/vmlinuz-lowlatency APPEND root=LABEL=moonstudio ro INITRD /.boot/ubuntu_moonstudio/boot/initrd.img-lowlatency LABEL Nokaiser MENU LABEL Ubuntu X Moon Studio lowlatency ^nokaiser LINUX /.boot/ubuntu_moonstudio/boot/vmlinuz-lowlatency APPEND root=LABEL=moonstudio ro nokaiser INITRD /.boot/ubuntu_moonstudio/boot/initrd.img-lowlatency LABEL Light MENU LABEL Ubuntu ^Q LightScribe Rt LINUX /.boot/ubuntu_q/boot/vmlinuz-3.6.5-rt14 APPEND root=LABEL=q ro nomodeset INITRD /.boot/ubuntu_q/boot/initrd.img-3.6.5-rt14 LABEL Suse MENU LABEL ^Vintage SUSE 11.2 Rt LINUX /.boot/suse11.2/boot/vmlinuz-2.6.31.6-rt19 APPEND root=LABEL=suse11.2 INITRD /.boot/suse11.2/boot/initrd-2.6.31.6-rt19 Regards, Ralf

8 years

[LAU] [Music] O Tannenbaum (remix)

by Jeanette C.

Hey hey, there is now a remix of O Tannenbaum, released at the end of last year, made by Fons Adriaensen. It's under the CC-BY 4.0 license and can be found here: http://juliencoder.de/nama/tannenbaum-remix.mp3 http://juliencoder.de/nama/tannenbaum-remix.ogg It's certainly a much more transparent mix, even dealing with a few performance mistakes. Thanks Fons! For both remixing and providing Aeolus, without which this composition wouldn't have been half as much fun. Best wishes,m Jeanette -------- * website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c I believe We all have one true love Somewhere in this world <3 (Britney Spears)

8 years

[LAU] Meltdown – Spectre

by Ralf Mardorf

Hi, did anybody already compared the latest patched Ubuntu kernels after booting with and without "nokaiser"? I don't have time to test if booting with or without "nokaiser" makes a difference on performance, such SSD access, DSP load or what ever else [1]. IUUC the KAISER patch set covers Meltdown, but Spectre is covered by upgrading the package "intel-microcode" [2]. A subscriber of freebsd-questions(a)freebsd.org send me off-list a German link about SSD performance issues on Windows machines, caused by fixing the Meltdown and Spectre issue [3]. However, until now I only added a new menu entry to my bootloader's config [4], but only had time to boot one time using the other menu entry without "nokaiser" and without running an audio session or doing any kind of performance test at all. Regards, Ralf [1] https://lists.ubuntu.com/archives/ubuntu-users/2018-January/293180.html [2] https://usn.ubuntu.com/usn/usn-3531-1/ [3] https://www.heise.de/newsticker/meldung/Intel-Benchmarks-zu-Meltdown-Spectr… [4] Sorry, I'm not using GRUB. [rocketmouse@archlinux ~]$ grep \ nokaiser /boot/syslinux/syslinux.cfg APPEND root=LABEL=moonstudio ro nokaiser -- $ hwinfo --cpu --short | sort -u cpu: Intel(R) Celeron(R) CPU G1840 @ 2.80GHz, 2793 MHz $ pacman -Q linux{,-rt{,-cornflower,-pussytoes}}|awk '{print $2}' 4.14.13-1 4.14.12_rt10-1 4.11.12_rt16-1 4.14.8_rt9-2

8 years

[LAU] Mackie Onyx Satellite (Firewire)

by David Kastrup

Well, just got that one cheap and it does not work with Ffado but using snd_oxfw with ALSA. The pod has 2 in/2 out channels, the docking station 2 in/6 out. 96kHz, 24bit. The docking station does not appear to be the greatest idea for best input sound quality, though. And phantom power whines, which is particularly bad if you want to use one mic with phantom power and one high impedance instrument input. The Internet suggests replacing R5 on the pod daughter board (Mackie has schematics on its web page: now that's service!) from 10k with 300R (probably easier to piggyback on the existing resistor, should not make much of a difference) in order to raise the step-up phantom power voltage generator frequency from 6kHz to something like 160kHz. A serious WTF here but likely something I'll do. Nice compact 2-channel recording interface (the docking station is not all that useful but might make sense if you have a surround sound setup at home). With Firewire disconnected it monitors its inputs, so it doubles as a headphone amp (modulo AD/DA delay but that should just be few ms). No software controllable mixer makes for no tears. -- David Kastrup

8 years

[LAU] LAC 2018 : Call for Papers / Posters / Workshops/ Music Performances / Multimedia Installations

by David Runge

[Apologies for cross-postings] [Please distribute] Conference date: 7th - 10th June 2018 The Linux Audio Conference 2018 will be hosted at c-base, Berlin - in partnership with the Electronic Music Studio (TU Berlin) and Spektrum. https://lac.linuxaudio.org/2018 Deadline for all submissions: February 28th, 2018 (23:59 UTC) - - - 1: Call for Papers / Posters / Workshops LAC 2018 invites submissions of papers, posters and workshops addressing all areas of audio processing based on Linux and open source software. All submissions and presentations are in English. All submissions are peer reviewed by a committee of experts from different disciplines. Submissions can focus on technical, artistic or scientific issues and can target developers or users. For more details see the website: https://lac.linuxaudio.org/2018/pages/cfp/ Papers Papers must be written and presented in English. The length of papers is 4 to 8 pages, with up to 5 keywords, and an abstract of up to 200 words. Posters The poster presentations are based on paper submissions of 2-4 pages, with up to 5 keywords and an abstract of up to 150 words. Workshops The workshop presentation (max duration of 2h) should be 1-4 pages, with up to 5 keywords, and an abstract of up to 150 words to be published on the conference website. Submit a brief description of the workshop including URL (if available). How to submit? * Use the OpenConf online submission tool at https://lac.linuxaudio.org/2018/openconf * Select the relevant submission type ('_ PAPER _' / '_ POSTER _' / '_ WORKSHOP _') * The required file format is PDF, formatted for A4 paper. Authors are required to use the templates for paper formatting available as download on the conference website. * Please notify us if you need a special technical setup for your presentation. - - - 2: Call for Music Performances / Multimedia Installations LAC 2018 also invites submissions of Electroacoustic Works and Multimedia Installations. A jury will select the compositions and installations to be included in the conference program according to artistic merit and technical feasibility. Please be prepared to perform your work yourself and make sure that you have all resources needed to perform your piece at your disposal (e.g. instruments, other performers, etc.). Unfortunately, LAC 2018 cannot pay a fee neither for you nor for any additional performers, and LAC 2018 cannot organize or pay for travel or accommodation neither for you nor for any additional performers. All submissions are peer reviewed by a committee of experts in music and arts. Electroacoustic Works and Multimedia Installation can address all areas of digital audio and audiovisual art. Available Technical Setups For concerts, the LAC will provide the following equipment: * 8-channel - speaker setup * Stereo setup + video projection * Digital mixing desk Additional requests can not be guaranteed. How to submit? * Use the OpenConf online submission tool at https://lac.linuxaudio.org/2018/openconf * Select the submission type '_ PERFORMANCE _' * The required file format is PDF, formatted for A4 paper. It includes: * Description of the project program notes * Link to video or audio demonstration of the project * Technical rider of the work Important Dates * Deadline for all submissions: February 28th, 2018 (23:59 UTC) * Acceptance notification: March 31st, 2018 * Final deadline for 'camera ready' paper: April 15th, 2018 * Author registration deadline: April 15th, 2018 * Final program: May 1st, 2018 Up-to-date information regarding the conference can be found on its website: https://lac.linuxaudio.org/2018 Looking forward to seeing you in Berlin! The Linux Audio Conference 2018 team

8 years

[LAU] AMD graphics card

by Will Godfrey

Hi All, I'm looking for something in the Radeon series for the new Ruzen cpmuter I'm having built. It doesn have to be especially fast, but needs an up-to-date driver. Any suggestions? -- 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

[LAU] hmm, how to get kxstudio on my Debian Testing laptop?

by david

I did it sometime ago on the desktop and it worked and I've come to like Cadence there. I wanted to put Cadence on my main system, the laptop. I run Debian Testing on both systems. I installed the DEB files the KXStudio site says to download and install to enable the KXStudio repositories. I did an apt-get clean and update, and the terminal shows these messages: Hit:1 http://ftp.us.debian.org/debian testing InRelease Hit:2 http://www.deb-multimedia.org testing InRelease Ign:3 http://kxstudio.linuxaudio.org/repo gcc5 InRelease Hit:5 http://kxstudio.linuxaudio.org/repo gcc5 Release Hit:6 http://mirror.xcer.cz/trinity-sb stretch InRelease Hit:4 http://cdn-fastly.deb.debian.org/debian experimental InRelease Hit:8 http://cdn-fastly.deb.debian.org/debian testing InRelease Ign:9 http://download.videolan.org/pub/debian/stable InRelease Hit:10 http://ppa.launchpad.net/flexiondotorg/audio/ubuntu zesty InRelease Hit:11 http://download.videolan.org/pub/debian/stable Release Hit:12 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu xenial InRelease Hit:14 http://ppa.launchpad.net/hugin/next/ubuntu xenial InRelease Hit:15 http://ppa.launchpad.net/kxstudio-debian/gcc5/ubuntu xenial InRelease Hit:16 http://ppa.launchpad.net/kxstudio-debian/gcc5-deps/ubuntu xenial InRelease Hit:17 http://ppa.launchpad.net/kxstudio-debian/libs/ubuntu trusty InRelease Hit:18 http://ppa.launchpad.net/flexiondotorg/audio/ubuntu yakkety InRelease Hit:19 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu yakkety InRelease Hit:20 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu zesty InRelease Hit:21 http://ppa.launchpad.net/system76-dev/stable/ubuntu trusty InRelease Reading package lists... Done W: Skipping acquire of configured file 'non-free/i18n/Translation-en_US' as repository 'http://kxstudio.linuxaudio.org/repo gcc5 InRelease' doesn't have the component 'non-free' (component misspelt in sources.list?) So is there something messed up at the KXStudio end? Either way, attempting to apt-get install Cadence reports unable to locate package. Searching for it in Synaptic also doesn't find it. Also, due to Ubuntu's decision to be 'different' from Debian, I'm not sure what Ubuntu version corresponds with Debian Testing. Ideas? Thanks. -- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com

8 years

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Linux-audio-user January 2018