Linux-audio-user April 2010

linux-audio-user@lists.linuxaudio.org

139 participants
124 discussions

by fons＠kokkinizita.net

Some updates on <http://www.kokkinizita.net/linuxaudio/downloads> jconvolver-0.8.7 Bugfixes to fconvolver, now exits cleanly. Thanks to Joern Nettingsmeier for reporting this bug. zita-resampler-0.1.1 Library is not changed, new version of the audio file resampling application. For 16-bit output 'resample' now supports dithering: rectangular, triangular or 'noise shaped' using the Lipschitz filter. Enjoy ! -- FA O tu, che porte, correndo si ? E guerra e morte !

14 years, 7 months

vorbis support in lame is deprecated

by James Morris

$ lame -h --preset cd --ogginput azr3.ogg azr3.mp3 sorry, vorbis support in LAME is deprecated. what's with that? are they just being awkward?

14 years, 7 months

Re: [LAU] [Lame-dev] ogg input deprecated question

by James Morris

On Thu, April 8, 2010 10:08, robert wrote: > Hi James. > > Am 07.04.2010, 14:04 Uhr, schrieb James Morris <james(a)jwm-art.net>: > >> Are you purposely preventing users from using OGG as input despite >> libsndfile having the ability to read them? > > No. > >> Or is this an unintended side effect of what I guess to be removal of >> old >> code from lame which used to read OGG? > > Yes. > >> Personally, I'd like to see OGG input via libsndfile re-instated - being >> familiar with libsndfile if I see a program uses it I don't expect to >> see >> that program restricting it's input types to a subset of what libsndfile >> can do - unless explicitly stated in the documentation. > > At the time we added Eric's libsndfile for reading audio data, it couldn't > read OGG files. It seems nobody missed that feature for over a decade, > but I'll re-enable it and you can expect it to work with LAME 3.99. > Hi Robert, Thanks a lot :) James. > > Ciao Robert >

14 years, 7 months

Re: [LAU] Yoshimi : Space Choir 1 (fantasy bank) sounds wrong

by cal

hi James, I haven't found the problem yet, but I've narrowed down when it came in. As far as I can tell the latest "safe" version where it was ok is 0.045. It's bad in everything beyond that, so I'm in for more long sessions of scouring diffs. Until that comes up with something, if you really need the Space Choirs maybe 0.045 (from last December) could serve your needs better. <http://www.graggrag.com/yoshimi/yoshimi-0.045.tar.bz2> cheers, Cal

14 years, 7 months

Re: [LAU] StretchPlayer 0.500 - Audio player with time stretch and pitch shifting

by James Kerr

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Wow, this libRubberBand gives amazing quality. Nice player, but Anything over ~80% volume gives distortion? It's a pity libSndFile doesn't support MP3 either :( -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iF4EAREIAAYFAku7fz4ACgkQA5dpS+2BZazpqwD7B6tatqJujvc/Zxc5iRV9PmkF iGUQxusDK3xMTUcFas0A/1DKq5FG3OmCrmJY59E7ap5KoRJiJniQ0s3hpOZyXHLZ =qA9b -----END PGP SIGNATURE-----

14 years, 7 months

Re: [LAU] vorbis support in lame is deprecated

by James Morris

On Wed, April 7, 2010 01:26, Philipp wrote: > Excerpts from JÃ¶rn Nettingsmeier's message of 2010-04-07 02:16:54 +0200: >> On 04/07/2010 12:19 AM, James Morris wrote: >> > >> > $ lame -h --preset cd --ogginput azr3.ogg azr3.mp3 >> > sorry, vorbis support in LAME is deprecated. >> > >> > what's with that? are they just being awkward? >> >> well, lame ain't an mp3 encoder, and it sure as hell ain't an ogg vorbis >> encoder, either. no harm in focusing on not doing what you don't do >> best. >> >> what's wrong with oggenc? > > Uhm, lame IS an mp3 encoder, that's the only thing it is, > but it's not a vorbis decoder. > > Deprecated usually means it will still work, but you should start > looking for another way to decode vorbis files. > I don't know why they chose to remove vorbis decoding capabilities but I > wonder why it was there in the first place. Sorry, computers and software are tormenting me recently! I remember it worked before, but now it just prints that message and nothing more. It just made the task of getting audio contained within oggs burnt onto a cd as mp3s for an mp3 cd player, that little bit easier. I guess if they include vorbis decoding, why should they not also include flaac decoding, etc, etc.

14 years, 7 months

Re: [LAU] JACK (or LADSPA or LV2) spectrum analyzer?

by Jörn Nettingsmeier

On 04/07/2010 01:30 AM, Brent Busby wrote: > On Tue, 6 Apr 2010, Jörn Nettingsmeier wrote: > >> use the analyser to find feedback and really bad room nodes, but don't >> try to "flatten" that curve you see. that way lies stuttering, >> drooling madness. > > This is probably a FAQ somewhere, but... > > What can I use to judge whether a monitoring system is emitting > "correct" amounts of mids, low-mids, bass, and sub-bass? you can stick your speaker on a pole in the garden (i.e. well away from reflecting surfaces) and measure it with a sweep, or pink noise, if you must. that will tell you the frequency response of your speaker. in actual practice, that isn't worth much. what's more interesting is a) weird modes at your listening position, which you can and should measure "in situ", and b) the decay characteristics of your listening room - check out some waterfall diagrams on the web to see what i mean. incidentally, here is one: http://stackingdwarves.net/public_stuff/linux_audio/tmt08/Ambisonic_Listeni… - created with (gasp!) wavelab in a hurry - is there a free tool that does them? if a specific frequency is annoying, it can be for three reasons: it's too loud to begin with, you ears are in a modal maximum (where a standing wave between two walls has maximum particle velocity), or your room has a very long reverb time in that frequency which sticks out from the rest of the reverb. best, jörn

14 years, 7 months

qjackctl bubble

by Peter Plessas

Dear List, as i start qjackctl and it can not start the server because some other application is using the soundcard it continues to flash Winows-style bubbles with its error message over and over every N seconds. Very annoying behavior. Is there any way to stop it? Make it forget about bubbles and misunderstood user-friendliness? thanks for any suggestions! P

14 years, 7 months

Re: [LAU] Puredyne 9.11 (Carrot and Coriander+) - new release of realtime audio+video distro

by James Morris

On Tue, April 6, 2010 20:32, Dan S wrote: > 2010/4/6 James Morris <james(a)jwm-art.net>: >> On Sun, April 4, 2010 00:27, James Morris wrote: >>> Hi, >>> >>> Just wondering why the 64bit Puredyne does not include Ardour? >>> >>> And how this might affect building it from source? >> >> Still wondering... > > It's a fair question. It wasn't me that made that decision (I don't > use ardour), and I don't see an audit trail why they went for > ardour-i686 - I'll ask the others. Thanks. Hope to see it in future :) >> And why punish us with grub2? I had a hellish time trying to configure >> it >> a couple of months ago and gave up and installed legacy grub. > > It's the (barely-documented) future I'm afraid... hmmm, better get used to it then I guess. Was a bit frustrated this morning... > Dan > -- > http://www.mcld.co.uk btw, found your replay gain command line rather useful - but for converting directories of oggs to mp3s (cd player won't play oggs).

14 years, 7 months

JACK (or LADSPA or LV2) spectrum analyzer?

by Ken Restivo

I'm mixing away, and at times I want to LOOK at the spectrum of a sound-- my ears are not yet well-developed enough for me to say "oh, that lump is at about 420Hz, and there's another at 3172Hz...", and sitting here sweeping with a parametric EQ seems prone to inaccuracy. I really like the spectrum analyzer built into JAMIN. At times I've been hooking up the output of a track to JAMIN, just to see what its spectrum looks like and where the peaks and/or resonances are. Is there a LADSPA or LV2 spectrum analyzer, similar to the one that's in JAMIN? And/or, is there a standalone JACK spectrum analyzer-- less heavyweight than JAMIN-- that I could use as a client, and just patch it in and out of tracks to view them? -ken

14 years, 7 months

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Linux-audio-user April 2010