Linux-audio-user

linux-audio-user@lists.linuxaudio.org

3 participants
20662 discussions

by bricolodu

Hello, I'm new to all of this. I'm trying to make FIR convolution on a Raspberry Pi 2. I have succeeded in making Jack2 working (Playback only, no full duplex). My alsa player can connect to Jack2 and jack2 to the hw I2S sound card, Fine. Now, this is what I'm trying to acheive : Start Jack2 (with jconvolver as input and I2S soundcard as output) Start jconvolver and Connect it to Jack2 Start Alsaplayer and Connect it to jconvolver as the audio input Here is my asound.conf /# convert alsa API to jack API # use it with: # % aplay foo.wav # pcm type jack pcm.rawjack { type jack playback_ports { 0 system:jconv_1 1 system:jconv_2 } capture_ports { 0 system:capture_1 1 system:capture_2 } } # jackplug pcm.jack { type plug slave { pcm "rawjack" } hint { description "JACK Audio Connection Kit" } } # use following peripherical by defaut with alsa: pcm.!default { type plug slave { pcm "rawjack" } }/ Here is my jconvolver config file: jconvolver filter-44100.conf /# Replace by whatever required... # /cd /root/folve/filter # # # in out partition maxsize density # -------------------------------------------------------- /convolver/new 2 2 256 204800 0.5 # # # num port name connect to # ----------------------------------------------- /input/name 1 jconvolver /input/name 2 jconvolver # /output/name 1 jconv_1 /output/name 2 jconv_2 # # # in out partition maxsize # --------------------------------------------------------------- /convolver/new 2 2 1024 65536 # in out gain delay offset length chan file # -------------------------------------------------------------------------- /impulse/read 1 1 0.75 0 0 0 1 T-Monacor_SPH30X.wav /impulse/read 2 2 0.75 0 0 0 1 T-Monacor_SPH30X.wav / When I start jconvolver, I get the following error : *Can't initialise convolution engine.* Thank you all for any tweak, Jean -- View this message in context: http://linux-audio.4202.n7.nabble.com/Jconvolver-on-Raspberry-Pi-tp98952.ht… Sent from the linux-audio-user mailing list archive at Nabble.com.

9 years, 9 months

Looking for speakers and demonstrations for the "Open Source Audio Meeting Cologne" (monthly community meeting)

by Nils Gey

Dear developers and users, the "Open Source Audio Meeting Cologne" takes places monthly since June 2014 in Cologne, Germany. It is a community meeting: linux and open source audio enthusiasts, user, musicians and developers connect, share, discuss and help each other. But the meeting is also a monthly "mini linux audio conference". While not really a formal conference we have talks and demonstrations each time that deal with musical, technical or scientific aspects of everything music and audio with free and open source software and hardware. Regular attendance is close to 10 people for regular meetings and more for special meetings, for example when we have invited speakers and "guest-stars". I would like any of you to be such an invited star. If you are in the area (or willing to make a trip) it would be fantastic to have you here and give us a talk or demonstration about YOUR topic. Be it your music, your software or anything that you work with or on. You can answer me in private or publicly, your choice. If you are interested here is some more condensed information: -The time frame for a talk or demo is from 30 minutes to 2 hours for such an event. -Dates for 2016 (all Wednesdays, all 7pm): March 16th, April 20th, Mai 18th, June 15th, July 20th, August 17th, September 21st, October 19th, November 16th -The language can be English or German -The place is Heliostrasse 6a, 50825 Cologne Germany and has very good public transportation nearby and is therefore easy to get to. -While we have no money to offer you can get a place to sleep for the night and food. -We provide the option to record your talk on video and upload it (or simply send it to you, if you prefer) Website: http://cologne.linuxaudio.org It would be fantastic to hear from you! Yours, Nils Gey

9 years, 9 months

soundcloud social environment

by jonetsu＠teksavvy.com

I do not know much about soundcloud. I know how to upload and I used to know how to enable download of files (I'll have to recheck what Set and/or others have written here about this :) For instance, I do not know the context much. How people scan for files, how people try to sell stuff like services or such (I have the impression that some attention a file may gather has nothing to do with the music). So on my latest upload someone has put a picture/comment on the track, to the effect that 'this is a nice picture where I would like to be'. When NOT logged into the account I clicked on this to see what it is about then I clicked on the picture itself. At that point Konqueror froze completely and the desktop went a bit jerky. So I killed -9 konqueror. I did not pursue any investigation as to why it happened. Just to let you know. It might turn out that everyone knows much more about soundcloud than I do and are aware of possible mishaps. Cheers.

9 years, 9 months

Ardour: use case for monitor plug-in ?

by jonetsu＠teksavvy.com

Hello, In learning more about Ardour, recording and mixing in general... Ardour has recently added the capability for the monitor to also have plugins just like any regular track. What would be use cases for wanting to have a different audio specific to the monitor ? Cheers.

9 years, 9 months

(Ardour) How to get rid of delay when recording ?

by jonetsu＠teksavvy.com

Hello, When recording acoustic guitar wearing headphones, the delay between the note being played and the headphone output is so noticeable that for fingerpicking with only but a soft synth pad as background, it is difficult to play a good track. It is way too distracting. The workaround is to put a click, a high hat for instance and be oblivious of anything else and try for the best. But it is certainly not free playing as if playing along when the same is coming out the speakers. In Ardour 4.6.0 changing the monitoring from Ardour to hardware does not improve anything. Any advice, hints, suggestions will be much appreciated. Here is the setup. 1010LT card with playback outputs 3 and 4 send to a Behringer HA400 headphone amp. Just about no plugins in Ardour, No xruns seen in quite some time (eg. i5 3.40GHz CPU is very likely running under no stress) 16G RAM. It would be so nice to have no delay at all! Cheers.

9 years, 9 months

Re: [LAU] Updated to kernel 4.4.1, missing module snd_ice1712 -> no more envy24 support?

by Niels Mayer

On Sun, Feb 14, 2016 at 6:36 PM, Takashi Sakamoto <o-takashi(a)sakamocchi.jp> wrote: > grep SND_ICE /boot/config-4.4.1-040401-generic > npm@gnuport:~$ grep SND_ICE /boot/config-4.4.1-040401-generic CONFIG_SND_ICE1724=m > Collateral damage due to kernel configuration > change enabling CONFIG_ZONE_DEVICE > (Kernel 4.4 amd64) > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1534647 For Ubuntu kernels 4.4.X (e.g. for upcoming 16.04 LTS), the above bug and missing snd-ice1712.ko appears to be the problem. I've added some comments to the above, and also linked the bug to application mudita24(1) that is disabled by lack of snd_ice1712 module in the 4.4 kernel: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1534647/comments/12 The ice1712 .ko file is missing in 4.4.X: $ ls -l /lib/modules/4.4.1-040401-generic/kernel/sound/pci/ice1712/ total 256 -rw-r--r-- 1 root root 247046 Jan 31 12:48 snd-ice1724.ko -rw-r--r-- 1 root root 9230 Jan 31 12:48 snd-ice17xx-ak4xxx.ko In the 4.3.X kernel, snd-ice1712.ko is present and envy24 soundcards work: $ ls -l /lib/modules/4.3.0-040300-generic/kernel/sound/pci/ice1712/ total 376 -rw-r--r-- 1 root root 120838 Nov 2 07:01 snd-ice1712.ko -rw-r--r-- 1 root root 246270 Nov 2 07:01 snd-ice1724.ko -rw-r--r-- 1 root root 9230 Nov 2 07:01 snd-ice17xx-ak4xxx.ko If this doesn't get fixed, people upgrading to Ubuntu 16.04 LTS will not have use of soundcards such as M-Audio Delta 1010, Delta 1010LT, Delta DiO 2496, Delta 66, Delta 44, Delta 410 and Audiophile 2496. Terratec EWS 88MT, EWS 88D, EWX 24/96, DMX 6Fire, Phase 88. Hoontech Soundtrack DSP 24, Soundtrack DSP 24 Value, Soundtrack DSP 24 Media 7.1. Event Electronics EZ8. Digigram VX442. Lionstracs, Mediastaton. Terrasoniq TS 88. Roland/Edirol DA-2496. To the "end user", application mudita24(1) will exit inexplicably, printing only a message to stdout they're unlikely to see: $ mudita24 No ICE1712 cards found -- Niels http://www.nielsmayer.com PS: this message brought to you by Skylake, which necessitates a > 4.3 kernel :-) PPS: anybody have a pointer to a 4.4.1-compiled snd-ice1712.ko they coaxed out of the build by themselves?

9 years, 9 months

android 5.1 tablet klipad smart i745

by fred

Hi list, have had this android 5.1 tablet klipad smart i745 as a gift, and it will be fun to use it to do the fader automation in Ardour. Is there somebody on the list, that could say that it's possible to do, or if am losing my time to try this? At this point, am always searching a way to communicate between the tablet and the pc, and am not sure at all if it's via USB or thru the router that it have to be done.. Thanks! -- Fred

9 years, 9 months

guitarix-webui-0.34.0 released

by Hermann Meyer

Hi A new release of the guitarix-webui is out, it fix a issue in the controller value commitment to the engine. The guitarix webui is a browser based UI to control guitarix remotely either from a PC or a Android device. https://sourceforge.net/projects/guitarix/files/guitarix/ regards hermann

9 years, 9 months

Re: [LAU] Ardour: use case for monitor plug-in ?

by Chris Caudle

On Fri, February 12, 2016 5:57 pm, jonetsu(a)teksavvy.com wrote: > On the informational side it is quite good. On the execution side though, this is only windows. That is not correct (DRC only for Windows). If you read just a little past the section 4 with the theory of operation, section 5 begins with this: "DRC can be compiled either under Win32 or Linux, but because of its simplicity it will probably work under most operating systems with a decent C++ compiler with support for the standard template library (STL)." -- Chris Caudle

9 years, 9 months

Prelude And Promenade For Yoshimi

by Dave Phillips

Greetings, Two old sequences freshly revived for the latest Yoshimi : https://soundcloud.com/davephillips69/prelude-and-promenade-for-yoshimi Versions coming for ZynAddSubFX and Hexter. MOR mainstream tonal music for modern elevators. Best, dp

9 years, 9 months

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

Linux-audio-user