Linux-audio-user December 2020

linux-audio-user@lists.linuxaudio.org

36 participants
39 discussions

by Hermann Meyer

I'm pleased to announce the release of guitarix2-0.42.0 A virtual guitar amplifier for Linux running with jack (Jack Audio Connection Kit) released under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. ZamAudio <https://github.com/zamaudio> meets Guitarix https://github.com/zamaudio For this release Damien Zammit from ZamAudio has reworked our tube emulation. This improved beside the overall sound, the dynamic responses of the different tube simulations. Be aware please, that this may break your existing presets, but, we believe that the improvement in sound is it worse to force you to readjust your presets to match the new tube sims. Further news are: Reworked French translation by Olivier Humbert Add DC-Blocker on the Input Add Output Limiter Add Volume controls for the Power Amp plugin Fix version checks for needed packages Fix several small Bugs and hopefully don't introduce to much new ones Last release: https://github.com/brummer10/guitarix/releases/tag/V0.42.0 Project Page on github: https://github.com/brummer10/guitarix Project Page on SourceForge: https://sourceforge.net/projects/guitarix/

3 years, 11 months

[ANN] Vee One Suite 0.9.19 - QStuff* Winter'20 Release batch #2

by Rui Nuno Capela

Season greetings, one second time! Once more, the 'Vee One Suite' of so called 'old-school' software instruments, synthv1 [1] as a polyphonic subtractive synthesizer, samplv1 [2] a polyphonic sampler synthesizer, drumkv1 [3] as yet another drum-kit sampler and padthv1 [4] as a polyphonic additive synthesizer, are here released for the (Northern) Winter'20 season... All still delivered in the two traditional forms: - a pure stand-alone JACK client with JACK-session [5], NSM (Non/New Session Management [6]) and both JACK MIDI and ALSA MIDI [7] input support; - a LV2 instrument plug-in [8]. Changes for this special season release are as follows: - Better handling of the offset and loop ranges when in presence of very long sample files (applies to samplv1 [2] and drumkv1 [3] only). - Fixed display of old knob/dial values on status-bar. - Reduced formant filter coefficient slew rate, aiming to a tenfold DSP performance gain. - Get a chance on bringing Wayland into the picture when dealing Qt static-linked deliverables. The 'Vee One Suite' are free, open-source Linux Audio [10] software, distributed under the terms of the GNU General Public License (GPL) [11] version 2 or later. Ho ho ho, here we go! *<;) **synthv1 - an old-school polyphonic synthesizer [1] ** synthv1 0.9.19 (winter'20) is released! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: https://synthv1.sourceforge.io http://synthv1.sourceforge.net project page: https://sourceforge.net/projects/synthv1 downloads: https://sourceforge.net/projects/synthv1/files - source tarball: https://download.sf.net/synthv1/synthv1-0.9.19.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.19-60.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-jack-0.9.19-60.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-0.9.19-60.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-jack-0.9.19-60.x86_64.AppImage git repos: https://git.code.sf.net/p/synthv1/code https://github.com/rncbc/synthv1.git https://gitlab.com/rncbc/synthv1.git https://bitbucket.org/rncbc/synthv1.git **samplv1 - an old-school polyphonic sampler [2]** samplv1 0.9.19 (winter'20) is released! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: https://samplv1.sourceforge.io http://samplv1.sourceforge.net project page: https://sourceforge.net/projects/samplv1 downloads: https://sourceforge.net/projects/samplv1/files - source tarball: https://download.sf.net/samplv1/samplv1-0.9.19.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.19-60.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-jack-0.9.19-60.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-0.9.19-60.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-jack-0.9.19-60.x86_64.AppImage git repos: https://git.code.sf.net/p/samplv1/code https://github.com/rncbc/samplv1.git https://gitlab.com/rncbc/samplv1.git https://bitbucket.org/rncbc/samplv1.git **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 0.9.19 (winter'20) is released! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: https://drumkv1.sourceforge.io http://drumkv1.sourceforge.net project page: https://sourceforge.net/projects/samplv1 downloads: https://sourceforge.net/projects/drumkv1/files - source tarball: https://download.sf.net/drumkv1/drumkv1-0.9.19.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.19-60.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-jack-0.9.19-60.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-0.9.19-60.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-jack-0.9.19-60.x86_64.AppImage git repos: https://git.code.sf.net/p/drumkv1/code https://github.com/rncbc/drumkv1.git https://gitlab.com/rncbc/drumkv1.git https://bitbucket.org/rncbc/drumkv1.git **padthv1 - an old-school polyphonic additive synthesizer [4]** padthv1 0.9.19 (winter'20) is released! padthv1 is an old-school polyphonic additive synthesizer with stereo fx. padthv1 is based on the PADsynth algorithm by Paul Nasca, as a special variant of additive synthesis. LV2 URI: http://padthv1.sourceforge.net/lv2 website: http://padthv1.sourceforge.net https://padthv1.sourceforge.io project page: https://sourceforge.net/projects/padthv1 downloads: https://sourceforge.net/projects/padthv1/files - source tarball: https://download.sf.net/padthv1/padthv1-0.9.19.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.19-60.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-jack-0.9.19-60.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-0.9.19-60.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-jack-0.9.19-60.x86_64.AppImage git repos: https://git.code.sf.net/p/padthv1/code https://github.com/rncbc/padthv1.git https://gitlab.com/rncbc/padthv1.git https://bitbucket.org/rncbc/padthv1.git References: [1] synthv1 - an old-school polyphonic synthesizer https://synthv1.sourceforge.io http://synthv1.sourceforge.net [2] samplv1 - an old-school polyphonic sampler https://samplv1.sourceforge.io http://samplv1.sourceforge.net [3] drumkv1 - an old-school drum-kit sampler https://drumkv1.sourceforge.io http://drumkv1.sourceforge.net [4] padthv1 - an old-school polyphonic additive synthesizer https://padthv1.sourceforge.io http://padthv1.sourceforge.net [5] JACK Audio Connection Kit https://jackaudio.org/ [6] NSM, Non/New Session Management https://linuxaudio.github.io/new-session-manager/ (formerly http://non.tuxfamily.org/nsm/) [7] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [8] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [9] AppImage, Linux apps that run anywhere https://appimage.org/ [10] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [11] GNU General Public License https://www.gnu.org/copyleft/gpl.html See also: https://www.rncbc.org/drupal/node/2153 Stay safe && Healthy && Keep having (lot's of) fun! -- rncbc aka. Rui Nuno Capela

3 years, 11 months

Affordable well-working USB interface with low latency at 48kHz?

by David Kastrup

Hi, I am currently trying to get the members of my accordion orchestra to commit to rehearsals using Jamulus. Under Linux, Jamulus uses jackd to access sound. There is a "JamulusOS" bootable image that will use Linux to access the soundcard. Now I want to recommend something to band members (and/or get it myself) when their sound quality and/or latency is not up to par. My own collection of sound cards here tends to be Firewire, and supporting that is not really feasible (the finances would be strained by requiring a Thunderbolt->Firewire adapter and Thunderbolt is not a given, while Firewire is not something modern people can think about, and my Expresscard Firewire adapters still require an actual Expresscard slot). My own solution right now is an Alesis iO/14 which runs with a roundtrip latency of about 160 samples at 48kHz. I've just dug out my still-not-resold RME HDSP Multiface with a PCMCIA Adapter in an Expresscard-to-PCMCIA adapter which is sort of a reference interface and it delivers 62 samples roundtrip delay. Which is impressive but nobody has the interfaces for that anymore and it would not be a recommendation because of its pricing. I've lent out one Tascam US-122L interface and Tascam has 64bit drivers for it on its web page that work reasonably well. Wow. Under Linux, I have not been able to get it to work recently and it uses really obscure and undocumented Alsa modes to get at the data: to provide full-duplex at higher sample rates (48kHz? 96kHz? 24bit? Don't remember) via USB1.1, it has its own protocols that are not class compliant. So while it miraculously does work with modern Windows, it would not be a useful option for JamulusOS. And I am sure I'd get a JamulusOS setup to run on other people's hardware, and don't have what it takes to make Windows dropout-free, what with all its secret background processes. So that interface is only good for people who feel competent at hardware jiggling with Windows. So I am lacking a reasonably solid recommendation of (possibly older but reasonably quality) hardware with 1 or 2 mic inputs and +48V phantom power and likely USB2.0 HiSpeed class compliant, possibly 2 headphone outputs (the lockdown permits two households convening), good reliability/support under Linux (meaning no obscure software and/or Windows required for dealing with hardware mixers and mic preamp boosts), reasonably low roundtrip latency at 48kHz (does not need to be the insane 5ms from the RME DSP Multiface). Something that I would not mind taking back. And which is dirt cheap these days. I know, I know, wishful thinking. But I will not persuade people to buy old laptops for this feat, and while I might try starting them off their built-in soundcards/mics to get them warm to the idea, I need a good path forward. Thanks for useful suggestions! -- David Kastrup

3 years, 11 months

Matching reverb to Sonatina Symphonic Orchestra (SSO)

by Jeanette C.

Hey hey, does anyone have a good LADSPA plugin suggestion (perhaps with a rough parameter idea) to match a dry sample to the free Sonatina Symphonic Orchestra (SSO). I have to combiine some extra sounds with the SSO and thought a jump start would be good. :) Thanks for any hints. Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c Baby, there's something about you Show me, that nothing can hold you down <3 (Britney Spears)

3 years, 11 months

[music] Crying shame

by Jeanette C.

Hey hey, a new song, esynthpop, inspried by late 90s, early 00s Ace Of Base: https://youtu.be/qtggAzfQ2K8 And for direct download: https://www.dropbox.com/s/tjavodpygvdyzk4/crying_shame.ogg This is only an instrumental version, I'm not able to perform vocals right now. The instruments were entirely hardware, the effects are mostly TAP, CAPS, Invada and Fons Adriaensen's 4-band parametric filter. As ever, feedback is welcome. Most of all, I just hope you enjoy it. Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c Don't worry, you're gonna be alright, But Cinderella's got to go <3 (Britney Spears)

3 years, 11 months

Re: [LAU] Distorted sound

by Brandon Hale

Sir, I spent 8 dollars on that soundcard, and you called it "garbage". How dare you? It even has 3D stereo. Yes, you read that right. 3. D. In reality though, the 3d stereo claims are just for marketing. The stereo image sounds normal. On 12/14/20 4:42 PM, David Kastrup wrote: > Brandon Hale <bthaleproductions(a)gmail.com> writes: > >> One last thing you can try, if the headphone jack still doesn't work >> after a fresh install, is getting a cheap usb audio soundcard. It will >> have less noise and give you a reliable dac in the future on >> Linux. Here >> <https://www.amazon.com/gp/product/B00IRVQ0F8/ref=ppx_yo_dt_b_search_asin_ti…> >> is one that I have personally used that has saved my life a number of >> times. > I'd be wary about the "3D stereo" thing. My own "garbage for the win" > sound card looks like this: > > > Yes, those are 3.5mm connectors. I think the line input is dead by now > (but mic inputs can be misused well enough) and the soundcard mixer is > such a mess that I haven't gotten the headphone output to work under > Windows (but abusing the front 2.1 output by using a headphone in it > works reasonably). The latency is suboptimal and I think it cuts off > around 15kHz. Backside has an optical S/PDIF input and an output. > > Another option worth considering are handheld recorders: those tend to > have a "soundcard mode" as well. Unfortunately, with my Zoom H2 > recorder I haven't found a way to use recording (built-in mics or > external) and playback (headphone or line output) at the same time > without the input unconditionally also appearing at the output. > Undesirable for the application I was considering it for (Jamulus). > > Possibly newer models fare better in that regard. >

3 years, 11 months

Re: [LAU] Distorted sound

by David Sumbler

On Fri, 11 Dec 2020 17:43:42 +0100 Jeremy Jongepier <jeremy(a)autostatic.com> wrote: > > Hello David, > > > After much experimentation with settings, I have now got the sound > > from Qtractor back to the headphones. The distortion is still > > there. I would be tempted to think it might be a fault with my > > Raspberry Pi, but the sound is fine when using 'aplay', so clearly > > the sound system on the Pi is fundamentally OK. > > > > Comparing the settings in QJackCtl in the Parameters and Advanced > > tabs, they are the essentially the same both on the Pi and on my HP > > laptop running Ubuntu 18.04. > > > > I'm stumped. > > You might want to check out > https://wiki.linuxaudio.org/wiki/raspberrypi#on-board_audio > > The onboard audio is still PWM and < 16-bit as far as I know so maybe > that's the cause of the distortion. It seems possible - although since the sound is at least superficially OK when played through HDMI but is completely unusable through the headphone jack, I would have thought I needed to be looking somewhere else. I had a look at the wiki page you linked to. Unfortunately there doesn't seem to be a date on it, and I am wondering whether it is perhaps partly out of date. It mentions Raspberry Pi 1 and 2, but has no mention of 3 or 4. Also it has a section on building a real-time kernel, but I understood that all up-to-date Linux kernels have real time capability, and certainly my QJackCtl reports that jack is running in real time. I haven't so far listened to any actual music played from Qtractor through the HDMI: perhaps I should try this, to see whether the sound is sufficiently good to use for editing etc. But even if it is, it still doesn't solve the basic problem, which is that I can't use the sound coming through the headphone socket. I have a feeling I'm going to have to go back to plan A - which is using my laptop computer, as I have in the past. Qtractor and jack run fine on this. I was just hoping to use the Pi which would have been more convenient in some ways. Before I give up, I might just try a completely fresh install of the OS on the Pi. It's just possible something has got messed up along the way. Thanks for your suggestions. David

3 years, 11 months

Distorted sound

by David Sumbler

I am running Qtractor and QJackCtl on a Raspberry Pi 3B+, with sound output through the headphone jack. When I play a wav file using 'aplay' it sounds fine, but if I load it into a track in Qtractor, it is very distorted. A female voice sounds like basso profundo (although the speed is correct) and is very distorted. It looks to me as if this is probably because the output of Qtractor is not being directed through jackd. QJackCtl seems to show that jack is running OK and speaking nicely to Alsa, but there is one oddity. The Qtractor Connections window shows, in the Audio tab, the expected Qtractor output connected to System. Normally I would expect the QJackCtl Connect window to show the same in its Audio tab, but in fact it shows nothing at all - neither Qtractor nor System. (Yet it is showing the expected Midi Through and Qtractor on both sides of the Midi tab, cross connected as expected.) The Messages tab of QJackCtl shows that jackd is running, but it doesn't report anything extra when Qtractor is started. Yet on my Ubuntu machines, QJackCtl knows automatically when I start Qtractor. Any ideas why QJackCtl doesn't seem to know what's trying to connect through it? David

3 years, 11 months

PianoBooster is back! V1.0.0 is released and a new website.

by Louis B.

Hello Everyone, PianoBooster is back! It has been a very long time since there has been an announcement about PianoBooster posted to this list and there have been lots of changes. First there is a brand new website see https://www.pianobooster.org/ and the official source code has just moved to a new GitHub repo. See https://github.com/pianobooster/PianoBooster so please update your URLs to point to this new website and repo. Piano Booster is an Open Source program that helps with playing the piano and learning to sight read music. It's key feature is that it listens and follows what you are playing on the piano and waits for you to find and play the right notes. It helps you with this by giving you audio feedback. So if you play a wrong note then that note will have the Harpsichord sound but the right notes will have the Piano sound. The new features in this release is a built-in FluidSynth sound generator which makes it much easier to use. Also included are two music courses, Please see https://www.pianobooster.org/music-info.html For a video demonstration see: http://www.youtube.com/watch?v=UGbfm8Tv-20 PianoBooster is licensed under GPL and runs on Linux, Windows and the Mac. PianoBooster is available from: https://www.pianobooster.org . Thanks Louis

3 years, 11 months

[music] Plagiat - #MCOB - #InLiveConditions oriental meshuggah hip hop tang!

by ORL - AMMD

Hi! We juste realized a new song, recorded in video, as usual, in #AlmostLiveConditions, but this time we didn't had the director's cut, neither the platform on which it's been dropped: https://www.youtube.com/watch?v=K8Mdiubg98I&feature=youtu.be or in audio only: https://plagiatbros.bandcamp.com/album/monnaie-chiffre-oseille-bif-jack-shi… Everything is CC4.0-BY-SA It's a live recording, we do use a FLOSS setup online including: - Ladish / Gladish, - zynaddsubFX, - SooperLooper, - Non-mixer, - seq24 (our self patched-version), - x42-fat1 microtonalized version, - many plugins: calf, swh, tap, caps, invada... - ecasound, - mididings (as our main control piece), - tapeutape (a sampler which is not developped anymore), - calfjackhost, - Open Stage Control, - Pedalboards (teensy code to get an osc pedalboard) You can find the setup here: https://github.com/PlagiatBros/PlagiatSetup/ And for the recording, mixing and mastering: - Ardour, - LSP plugins. Thanks for your attention.

3 years, 11 months

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Linux-audio-user December 2020