Linux-audio-user December 2017

linux-audio-user@lists.linuxaudio.org

66 participants
58 discussions

by Jeanette C.

Hey hey, I recently watched a video called "sad christmas" (or similar), which inspired me to do my own "sad christmas" contribution in the form of an orchestral interpretation of the German christmas carol "Oh Tannenbaum" in a minor key. Besides trusty Nama for recording, the only other software involved was LinuxSampler for the (commercial) trumpet and Aeolus for the wonderful basso continuo. Also jconvolver for appropriate reverb. http://juliencoder.de/nama/tannenbaum.ogg http://juliencoder.de/nama/tannenbaum.mp3 Comments are welcome, I hope you enjoy it. Best wishes, Jeanette -------- * website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c 'Cause living in a dream of you and me Is not the way my life should be... <3 (Britney Spears)

6 years, 4 months

Linux Audio Berlin meeting @ c-base 2017-12-06

by Daniel Swärd

Hi all. Just a friendly reminder for the monthly meeting at c-base (Rungestraße 20). I'll be in the mainhall from 20:00. Hope to see you there! Cheers /Daniel

6 years, 4 months

Re: [LAU] Fedora 26 RT kernel question

by Chris Caudle

On Mon, December 4, 2017 1:52 pm, Fernando Lopez-Lezcano wrote: > I just did a quick test on my oldish test laptop (Lenovo t510) running > the Planet CCRMA rt kernel (4.13.15...), inserted a Tascam 4x4 USB2 > soundcard and everything seems to be running fine (both pulseaudio & > jack). OK, I guess that is good in general for PlanetCCRMA, but I still don't have any good place to start with no error messages. I don't know where to even start debugging a driver problem. > Must be some bug that manifests on your hardware... > What soundcard are you trying to use? On what hardware? > What type of usb interface? (2 or 3) An older Lexicon Lambda interface. It is up to 48k sample rate and 2 channel only, so it uses USB 1 speed interface. Full info below in case Clemens or one of the other driver guys is aware of any RT patches that affected snd_usb, or even just part of the USB stack, I'm not using any other USB devices so if other device types are broken as well I would not notice. $ lsusb -t /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M |__ Port 2: Dev 2, If 0, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 1, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 2, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 4, Class=Application Specific Interface, Driver=, 12M |__ Port 2: Dev 2, If 6, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 7, Class=Audio, Driver=snd-usb-audio, 12M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/8p, 480M I'm not sure why endpoint 3 is missing, maybe just a quirk of that device. I doubt that is relevant, I have never previously found that the RT snd_usb driver had any problem, so unexpected that it does now. $ sudo lsusb -v -D /dev/bus/usb/005/002 Device: ID 1210:0009 DigiTech Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x1210 DigiTech idProduct 0x0009 bcdDevice 0.01 iManufacturer 1 Lexicon iProduct 2 Lexicon Lambda iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 380 bNumInterfaces 6 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 52 bInCollection 2 baInterfaceNr( 0) 1 baInterfaceNr( 1) 2 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 3 Lexicon Lambda In/Out AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 1 iTerminal 3 Lexicon Lambda In/Out AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0603 Line Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 3 Lexicon Lambda In/Out AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 4 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 3 iTerminal 3 Lexicon Lambda In/Out Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x00c0 1x 192 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 0 Milliseconds Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x0120 1x 288 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 0 Milliseconds Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x00c0 1x 192 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 0 Milliseconds Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 3 Lexicon Lambda In/Out AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 4 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 13 Transfer Type Isochronous Synch Type Synchronous Usage Type Data wMaxPacketSize 0x0120 1x 288 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 0 Milliseconds Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 6 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 4 Lexicon Lambda Midi AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 9 bInCollection 1 baInterfaceNr( 0) 7 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 7 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 3 MIDI Streaming bInterfaceProtocol 0 iInterface 4 Lexicon Lambda Midi MIDIStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 65 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 1 Embedded bJackID 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 2 External bJackID 2 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 1 Embedded bJackID 3 bNrInputPins 1 baSourceID( 0) 2 BaSourcePin( 0) 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 2 External bJackID 4 bNrInputPins 1 baSourceID( 0) 1 BaSourcePin( 0) 1 iJack 0 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 1 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 3 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 254 Application Specific Interface bInterfaceSubClass 1 Device Firmware Update bInterfaceProtocol 0 iInterface 0 Device Firmware Upgrade Interface Descriptor: bLength 7 bDescriptorType 33 bmAttributes 7 Will Not Detach Manifestation Tolerant Upload Supported Download Supported wDetachTimeout 256 milliseconds wTransferSize 64 bytes can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered) -- Chris Caudle

6 years, 4 months

[ANN] Qtractor 0.8.5 - The Autumn'17 Release!

by Rui Nuno Capela

Hello! While this Fall still lasts... and before the New Year/Sun cycle comes in and sure will goes out... And then there is the time when a couple of things that most may find well, badly interesting: one it's primarily and visually evident and adds up as an UI/UX thingy, while the other may land way more beyond the scenes, not so obviously perhaps, but having an impact on the short and not so short but long run. You tell me. Truth is: Qtractor 0.8.5 (autumn'17) os now released! The short list is, or better yet, there are these: * File-system browser/tree-view (NEW) * Out-of process/cache plugin scan (ALL plugin types, not just Linux-VST anymore) And the not so short list but quite the same information (aka. change-log): - Audio clip gain and panning properties are now taken into consideration when hash-linking (aka. ref-counting) their back-end buffers. - New out-of-process plug-in inventory scan and cache option, replacing the old (aka. dummy) VST plug-in scan option and extending its function to all other plug-in types: LADSPA, DSSI and also LV2 (cache only). - A File System browser and tree-view is finally integrated as a dockable-widget on the main application window (cf. main menu View / Window / File System).</li> - Drag-and-dropping of session, audio and MIDI files over the main track-list (left pane) is now possible, allowing for yet another quick means to open a new session or add new tracks to the current session. - MIDI input/capture time-stamping has been fixed as much to avoid missing inbound events, when play-head is near the loop-end point and the loop-start is set below the absolute first half-a-second (<0.5sec). - LV2 Time/Transport speed information is now set on rolling when in audio export aka freewheeling mode. - Added *.SF3 to soundfont instrument files filter, on View > Instruments... > Import... file dialog. - A brand new View/Options.../Display/Meters/Show meters on track list/left pane option has been added. Description: Qtractor [1] is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework [2]. Target platform is Linux, where the Jack Audio Connection Kit (JACK [3]) for audio and the Advanced Linux Sound Architecture (ALSA [4]) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio. Website: http://qtractor.org http://qtractor.sourceforge.net https://qtractor.sourceforge.io Project page: http://sourceforge.net/projects/qtractor Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://download.sf.net/qtractor/qtractor-0.8.5.tar.gz - source package: http://download.sf.net/qtractor/qtractor-0.8.5-33.rncbc.suse.src.rpm - binary packages (openSUSE Tubleweed): http://download.sf.net/qtractor/qtractor-0.8.5-33.rncbc.suse.i586.rpm http://download.sf.net/qtractor/qtractor-0.8.5-33.rncbc.suse.x86_64.rpm - AppImage [7] packages: http://download.sf.net/qtractor/qtractor-0.8.5-3.x86_64.AppImage Git repos: http://git.code.sf.net/p/qtractor/code https://github.com/rncbc/qtractor.git https://gitlab.com/rncbc/qtractor.git https://bitbucket.org/rncbc/qtractor.git Wiki (help wanted!): http://sourceforge.net/p/qtractor/wiki/ - static rendering: http://qtractor.org/doc http://qtractor.sourceforge.net/doc - user manual & how-to's: http://download.sf.net/qtractor/qtractor-manual-and-howtos.epub http://download.sf.net/qtractor/qtractor-manual-and-howtos.pdf License: Qtractor [1] is free, open-source Linux Audio [5] software, distributed under the terms of the GNU General Public License (GPL [6]) version 2 or later. References: [1] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.sourceforge.net http://qtractor.org [2] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [7] AppImage, Linux apps that run anywhere http://appimage.org/ See also: http://www.rncbc.org/drupal/node/1872 Enjoy && Keep having fun. -- rncbc aka Rui Nuno Capela

6 years, 4 months

Re: [LAU] getting LFE channel to work with PulseAudio 5.1

by David Kastrup

john gibby <johnalan.gibby(a)gmail.com> writes: > Hi All. I am just reading the responses, and I am going to study them > after sending this email. But I want to share this - I got it work. Got > up at 4:30am, just now got it working. I don't really understand > completely what I've done, but here it is. Maybe y'all can help me better > understand why all this works. > > BTW, I apologize that my email last night was unpleasant; I was really > upset, but should have moderated the email better. And - maybe I will > consider getting rid of PA, but the thing is, it "comes with" AV Linux and > so it was more convenient for me to try and live with it. As for using a > Mac for all this; had never thought of that. Interesting idea. (Can one > purchase and load MAC OS on my tower PC?) > > What I did: > > 1. Turned off "autospawn" in PA client.conf. I don't know yet if I need > to implement a way to make this temporary. I find that a good choice on a computer used for serious audio work. It's sometimes inconvenient when you forgot to start it in time (like having to kill and restart applications that chose to grab ALSA exclusively instead) but it's good _not_ to have to worry about it restarting when actually doing DAW/audio work. -- David Kastrup

6 years, 4 months

Soundcraft Notepad series on Linx

by Carlo Ascani

Does anyone have any experience with the Soundcraft Notepad mixers as Linux USB soundcards? https://www.soundcraft.com/en/product_families/notepad-series I'm considering the idea of buying one Best, Carlo -- Carlo Ascani aka carloratm http://carlo.ratm.gitlab.io carloratm@freenode

6 years, 4 months

getting LFE channel to work with PulseAudio 5.1

by john gibby

Hi, Have beat my head against the wall long enough... I have AV Linux, Hammerfall DSP card, am using Ecasound with ladspa plugins for DSP crossover, Pianoteq piano model, and Jack to glue things together. I built 2 nice large subwoofers (4 ft3 each) with 12" SBAcoustics drivers. Just realized the other day that my 5.1 surround sound is missing the .1; the LFE channel. I want to get it to appear in my PulseAudio sink, map it in the my Ecasound logic, and split the LFE signal between the 2 subs. Since I use them for 20 to 80hz, maybe this will sometimes detract from accuracy of movie music, but still I at least want to learn how to do it and see how I like it. Problem is, no matter what I do with /etc/pulse/daemon.conf, default.pa etc. (setting channels=6, channel order, no LFE mixing, etc.), I can't seem to get the LFE channel to work. I've searched the Internet over and over, read everything I could find and tried setting things like the articles say, but still the LFE channel just won't show up. Alsamixer shows front, rear and center master volume controls only; no LFE. pulsevumeter, etc., show only 5 channels, nothing shows the LFE channel. Any idea what I'm doing wrong? Thanks!! John

6 years, 4 months

[LAA] Guitarix 0.36.1 released

by Hermann Meyer

Guitarix release 0.36.1 Guitarix is a tube amplifier simulation for jack (Linux), with an additional mono and a stereo effect rack. Guitarix includes a large list of LV2 and LADSPA plugins, and support LADSPA / LV2 plugs as well in it's racks. The guitarix engine is designed for LIVE usage, and feature ultra fast, glitch and click free preset switching and is full Midi and remote controllable (the Web UI is not included in the distributed tar ball). With this release guitarix switch to use faust 0.9.90 to generate the plugins from the faust sources. changelog: * switch to use faust 0.9.90 * fix constant midi toggle change on preset load * add set midi switch to load next preset * add set midi switch to load previous preset * fix midi value change triggered double ( fix Preset Pick Mode) * add mono and stereo vumeter (with clip indicator) plugin * add option to make tuner sticky on top of the Rack * improved tooltips for Lv2 and Ladspa plugs * some fixes on the DK_simulator contributed by Yoann Le BORGNE Refer to our project page for more information: http://guitarix.org Download Site: http://sourceforge.net/projects/guitarix/ Forum: https://guitarix.sourceforge.io/forum/ Consider visiting our forum or leaving a message on guitarix-developer(a)lists.sourceforge.net regards hermann

6 years, 4 months

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Linux-audio-user December 2017