Linux-audio-user

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20707 discussions

Re: [LAU] memlock limits not set correctly?

by al3xu5 / dotcommon

> > On Thu, 17 Jan 2019 at 23:22, Bill Gribble<grib(a)billgribble.com> wrote: > >> I have opened a Debian bug report against the "libpam-modules" package > >> (containing pam_limits.so, the module that actually reads and applies > >> the /etc/security/limits.{conf,d} limits). We'll see what happens! > > For the benefit of other readers, I guess that would be this one: > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919528 > > That's the one. To summarize my later findings for posterity, this > isn't a "bug" in libpam-modules per se but a known bad-interaction > between systemd and gnome. > > In short, systemd implements its own system for setting process limits > on login, and /etc/security/limits.* are obsolete. Or systemd is ugly and buggy... > Here's the Link I Needed To Find: > > https://bugzilla.redhat.com/show_bug.cgi?id=1364332 > > The bummer is that systemd's mechanism for setting limits is less > powerful than the limits.conf style and doesn't permit setting limits > for users based on group membership. More, systemd approach has changed PID1 to be similar to Microsoft Windows svchost, break portability, ignore backwards compatibility, replace existing services, having also many other problems... The systemd's system for setting process limits on login is one of them. More in general, systemd-based Linux distributions (such is Debian) are not a good choice for audio IMO. > I still haven't nailed the workaround (the ideas in the fedora thread > above haven't worked, but I have little understanding of how systemd > manages processes so I'm sort of poking in the dark) but I will post a > followup to this thread when I do so that others might benefit as well. > > bg For me, a simply and definitive solution was upgrading from Debian to Devuan <https://devuan.org/> (with Mate desktop -- yes, Openbox should be better, but I did not have experimented it yet). My Linux audio DAW based on Devuan works quite well without any change in my settings and configuration files. Regarding the "right" value to be set as the maximum limit of RAM memory space that can be reserved by the audio applications (memlock), it should be appropriately "calibrated" (also at attempts) both on the basis of the memory available in the system and the requests of the audio applications that are used. Although it is possible to set this value so that it is "unlimited" or equal to the entire RAM memory available in the system (memlock unlimited), this is not generally advisable because it could lead (especially in the presence of "buggy" applications) to abnormal behaviors or system blocks. A good practice should be to use a value that is lower than the total amount of RAM available (i.e. in systems with at least 2GB of RAM, it is advisable to leave at least 1GB of memory "free"). Regards -- al3xu5 / dotcommon Say NO to copyright, patents, trademarks and any industrial design restrictions.

7 years, 1 month

[LAU] password

by al3xu5 / dotcommon

7 years, 1 month

[LAU] 1625 [music]

by Dave Phillips

Greetings, A little moody ambience from a work in progress exploring automatic melodic generation with VCV Rack modules. https://www.youtube.com/watch?v=DXFz7xNGYjc Still working on it. :) Best, dp

7 years, 1 month

Re: [LAU] USB interface for backing up old tracks mastered on cassette

by Jordan Muscott

Hi Joe, Thanks for the reply. I know this part of the question isn't linux specific, but presumably the AD converters in something like that aren't "as good" as those in a more expensive device though? I guess my question is do I have to fork out for a feature rich device such as one of the RME ones, or is there something with a more limited feature set out there (eg only 2 channels) that is of equally high quality? And then of course the linux specific question is -> Is it supported? thanks, Jordan. -------------------------------------------- On Tue, 15/1/19, Joe Hartley <jh(a)brainiac.com> wrote: Subject: Re: [LAU] USB interface for backing up old tracks mastered on cassette To: linux-audio-user(a)lists.linuxaudio.org Date: Tuesday, 15 January, 2019, 19:59 Hi, Jordan. You can probably use a low-end interface like the Behringer UCA202 which runs around $30 US. While certainly not great, I've found it fine for playong audio out to my stereo and to do the occasional cassette or turntable transfer. -- ====================================================================== Joe Hartley - UNIX/network Consultant - jh(a)brainiac.com Without deviation from the norm, "progress" is not possible. - FZappa _______________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-user

7 years, 1 month

[LAU] project "droning" v.2 released!

by Louigi Verona

Dear Linux Audio community! For many years I have been releasing my "droning" pieces on this mailinglist, and your support had been amazing! Today I have big news about project "droning": after several weeks of work, I have brought it to a new level. *What has changed:* 1. All tracks have been remastered. This is especially important for earlier dronings. A number of fixes has been made to tracks that needed fixing, and a couple of dronings were completely re-rendered from sources. 2. No more weirdly quiet tracks. All dronings are amplified to normal LUFS and also feel equally loud between themselves. 3. All tracks have been given titles. 4. Both mp3 and flacs have correct metadata (I am in the process of finalizing the reupload of new flacs to Bandcamp). *New release:* Additionally, you will find the previously missing dronings 277 and 280 present in the list of mp3. droning280, "Twilight Connection", has been released for the public only now. So, if nothing else, go grab this new tune now! :) As usual, project "droning" is located here: https://louigiverona.com/?page=projects&s=music&t=droning Again, thank you for the amazing support that I have received from you over the years. I hope project "droning" will continue to be enjoyed by ambient lovers all over the world! Louigi Verona https://louigiverona.com/

7 years, 1 month

[LAU] USB interface for backing up old tracks mastered on cassette

by Jordan Muscott

Greetings everyone, my first post to LAU for about 15 years :) I'm looking for a USB interface for use with my Lenovo G500 laptop running Slackware 14.1.At this stage I'm primarily interested in backing up some old tracks that were originally mastered on metal cassette tape. I have no immediate plans for doing any serious audio production using this machine (although that might be a possibility in the future). I haven't bought a sound card since 2003 so I'm a bit out of touch with what is available these days, and what is supported on linux. A few people have recommended RME to me. After a very quick look around the web the cheapest option I've found is an RME Digiface for £320. So I guess the questions are: Is it worth forking out for an RME device, or is there something else out there that is a bit cheaper that will serve my current purpose? How about the M-Audio M-Track 2x2M? (approx £90) tbh I'm asking all this based on the assumption that the on board device isn't great without actually testing it :) many thanks, Jordan

7 years, 1 month

[LAU] Latest Yoshimi released :)

by Will Godfrey

V 1.5.10 Redwing Command Line access is now virtually complete. The graphic interface has had a minor makeover. Also, very occasional corruption of this has been resolved. All inactive controls are now shown as such - there were a number that previously weren't, thus causing considerable confusion for new users. There is an improved pseudo-random number system, which does not rely on external libraries anymore. The 'Yoshimi Advanced User Manual' has had considerable revision and extension. Further details can be found in /doc/Yoshimi_1.5.10_features.txt By default, Yoshimi is supplied with 710 instruments spread across 23 banks. Yoshimi source code is available from either: https://sourceforge.net/projects/yoshimi Or: https://github.com/Yoshimi/yoshimi Full build instructions are in 'INSTALL'. Our list archive is at: https://www.freelists.org/archive/yoshimi To post, email to: yoshimi(a)freelists.org -- 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.

7 years, 1 month

[LAU] [music] A Machine Dream (simple ambience from the Rack)

by Dave Phillips

Greetings ! https://youtu.be/c2fzgobYjbk Another self-generating ambient music patch from VCV Rack. See the YT notes for details. Good for any hour of the day or night, but especially appropriate for late night/early morning meditations. Comments welcome, as always. Best regards, dp

7 years, 1 month

[LAU] time code

by 1213729945

Hi! I want to read the time code from the audio pin on windows system which is connected with the timecode generator TENTACLE. What should I do?

7 years, 1 month

[LAU] Trying to record!

by Bob van der Poel

I told some friends to come over tomorrow to make a recording ... and, of course, I can't get things to work on the computer. Hope someone can set me straight. I'm using pulse and audacity ... yeah, I know someone will tell me that will never work, but it's worked just fine in the past. So, lets continue :) I'm using a Audiobox USB interface with a single mic. I have tried different mics and cables, so I'm pretty sure that's not the problem. In the pavucontrol program the audiobox shows and I select Analog Stereo Output + Digital Stereo (IEC958) Input Now, when I bring up audacity I have 3 inputs available. Well, this time ... sometimes I have a list as long as my arm. But, for now lets use the short list: HDA Intel ... Pulse Default Both Pulse and Default appear to work as recording devices. Funny, though is that at other times I've gotten a raft of HDA lines, USB lines, etc. Doesn't seem to make sense to me. First off, lets test playback of a track in audacity to phones. Great ... perfect. Audacity (and everything else on the system)plays though the device into the phones. I'm happy. Now, I will record. I get the waveform. I speak into the mic ... and then I play back ... and it is just awful, scratchy crap. So, if you've read this far my problem is that I am getting crappy, very crappy, recording quality with the audiobox interface and audacity. Suggestions? I should add this output as well: arecord -l **** List of CAPTURE Hardware Devices **** card 0: USB [AudioBox USB], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 card 2: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 2: PCH [HDA Intel PCH], device 2: ALC887-VD Alt Analog [ALC887-VD Alt Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 4: U0x46d0x802 [USB Device 0x46d:0x802], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 Thanks to all. -- **** Listen to my FREE CD at http://www.mellowood.ca/music/cedars **** Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: bob(a)mellowood.ca WWW: http://www.mellowood.ca

7 years, 1 month

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