Linux-audio-user

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20661 discussions

[linux-audio-user] ANNOUNCE JACK-0.98.1 release

by Taybin Rutkin

These are just minor bug fixes to the configure script and header files. ***CHANGES*** Properly detect libreadline. Fatal error messages for missing get_opt_long(), dl_open(), and pthread_create(). No longer try to optimize for sse/mmx/altivec. Removed stale header from jack.h (jack_port_connect) JACK is available at http://jackit.sf.net Taybin

21 years, 6 months

Re: LiveCDs as Rescue Disks (WAS: [linux-audio-user] Ardour Crash+ can't boot)

by Matthew Allen

> -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Mark Knecht > > I recently ran DSL, Dynebolic, Gentoo LiveCD AND Knoppix in Frys on all > of the laptops I was considering until I found models that ran all 4 > CDs. This gave me a lot of confidence that once I got the laptop home > I'd be able to put Linux on it. It worked. I know watch DVD using Xine > and Alsa just fine. Aww man what an awesome idea! This sounds like 3 hours of weekend fun. And just in time for my laptop buying adventures. Thanks .matt _________________________________________________ Scanned on 26 Apr 2004 17:10:17 Scanning by http://erado.com

21 years, 6 months

[linux-audio-user] Re: linux-audio-user Digest, Vol 7, Issue 35

by philicorda

>Date: Fri, 16 Apr 2004 09:43:00 -0700 (PDT) >From: R Parker <rtp405(a)yahoo.com> >Subject: [linux-audio-user] sndfile-info and lots of questions >To: linux-audio-user(a)music.columbia.edu >Message-ID: <20040416164300.90068.qmail(a)web20916.mail.yahoo.com> >Content-Type: text/plain; charset=us-ascii > >Hi, > >As I've gone through my most challanging mastering >project, I've developed more questions than answers. > > Hope it all turned out right in the end! Only just caught up with the last email. I reackon Jamin could easily sort out the occasional uncontrollable kick drum. Perhaps in a two pass process, once to sort out that, then another pass for more general mastering. >There's been reference, on this list, to documentation >that explains file formats-- I don't recall the >document title or where to find it. Ultimately, I need >a resouce that explains things like; the number of >available samples for the different bit depths (16bit >range from -ABC to +XYZ, 24bit...), DC offset is, peak >amplitude is, RMS is, etc. > >I need to know if samples are syncronous with decibel >level, is maximum samples equal to 0db? > > Yes. Though 0dbfs is perhaps a better way to put it. Samples in 16bit= 2^16 Samples = -96dbfs range. Samples in 24bit= 2^24 Samples = -144dbfs range. Samples in 32bit float = I'm not sure if you count the Mantissa or not = Shockingly massive dynamic range. (Almost exactly :) ). >Of course another challange is tools like sndfile-info >assume that a file exists. This is not always the case >and in my situation it's almost never true. I return >JAMin output to an Ardour return bus and don't produce >a file until the return bus is exported. Printing a >track to the file system and then analyzing it is no >way to save time. > > I guess the only way some of those figures can be found is for the file to be printed. Ie, you can only tell what the peak sample is if you have compared it to every other sample in the file. To do it in real time, you would have to have 'Peak Sample so far', 'RMS so far' etc, and reset the figures manually when you started playback again. Not to say such a facility would not be useful. It would be nice if Jamin had a statistics page that showed you how many overs there had been, how many of them were consecutive etc. There is a new program called'Jackbitscope' http://www.ecs.soton.ac.uk/~njl98r/code/ladspa/bitscope/ this has displays for highest and lowest sample so far. (And lots of other useful looking things I don't really understand. ) >Anyway, I appreciate all the responses to my past >questions and am hopeful that someone can look at the >current mumbo jumbo and prescribe some effective >medications; coffee, sleep, black bear gallbladders, >urls to useful documents, etc. > > Ground lion's teeth are effective in 90% of these cases in my experience. If not..... "0dbfs+ levels in digital mastering" http://www.studio-systems.com/audiofeatures/SepOct2002/Audio%20Article/0DBF… It's a couple of years old but still interesting, in that it covers what can happen when very hot digital levels hit the analog world. Also, the rec.audio.pro faq is chock full of useful stuff... http://www.faqs.org/faqs/AudioFAQ/pro-audio-faq/

21 years, 6 months

LiveCDs as Rescue Disks (WAS: [linux-audio-user] Ardour Crash + can't boot)

by Matthew Allen

> -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Mark Knecht > Sent: Sunday, April 25, 2004 8:50 AM > To: A list for linux audio users > Subject: Re: [linux-audio-user] Ardour Crash + can't boot > > And again, I think that having a good LiveCD for looking at these things > helps a lot. I don't know how many times I have used Damn Small Linux to save a bad Lilo or GRUB install. Last weekend I even used it to get data off a Disk that windows refused to boot with. I am seriously thinking about burning DSL to a credit card mini CD and keeping it in my wallet. .matt _________________________________________________ Scanned on 26 Apr 2004 16:37:33 Scanning by http://erado.com

21 years, 6 months

[linux-audio-user] eliminating track gaps

by Jack Bowling

I would like some confirmation that the two methods of eliminating the 2-second pre-gap when burning CDs is to: 1) Burn in DAO mode 2) cat all files into one humungous track. Any info on other options much appreciated. -- Jack Bowling mailto: jbinpg(a)shaw.ca

21 years, 6 months

[linux-audio-user] just for fun

by Dave Phillips

Greetings: I only recently realized that there's a JACK output plugin for XMMS, so I applied it and used qjackctl to wire XMMS to SuperCollider3 (running the BBCut ugen) for some good clean LAU fun. JACK is simply the bee's knees... :) Btw, I agree with Frank N. that Jesse C. should be properly chastized for introducing a new FreqTweak right before the LA conference. Jesse, I have work to do and I can't stop playing around with the new FT !! ;) Such cool stuff... Best, dp

21 years, 6 months

[linux-audio-user] RE: eliminating track gaps

by daniel.vincent＠blueyonder.co.uk

Jack Bowling: > I would like some confirmation that the two methods of eliminating the > 2-second pre-gap when burning CDs is to: > 1) Burn in DAO mode > 2) cat all files into one humungous track. > Any info on other options much appreciated. I would recommend "gcdmaster", which can take loads of individual files and stick them together and DAO them onto a CD, and can also take one file and break it into tracks for you. Recently I have concatenated a load of tracks using Audacity, sorted out the levels and EQ and then exported as a WAV, which I then loaded into gcdmaster and split back into tracks. YMMV obviously... daniel www.onionjack.com <http://www.onionjack.com>

21 years, 6 months

[linux-audio-user] RE: Suddeny, snd-usb-audio has loads of undefined symbols! (SOLVED?)

by David Baron

Simply, did not happen again. So... question: why? There are other sporadic and even consistent bootup errors which seem related to timing. Certain initrd-releated items busy and cannot be removed, etc. (Unfortunately, it goes by too quickly to write them down.) <<Did not upgrade anything touching this, too my knowledge. Doing a <<cat /dev/midi1 from the device connected to USB shows normal operation. <<What gives?

21 years, 6 months

[linux-audio-user] searching a audio-server application

by René Oelke

hi folx, i am new at this list. so this ist my premier question. :) is there an application, that can solve the following problem: 1. run as a server-process 2. load some midi-data in it and create a virtual midi-track with this data 3. put an instrument on this track with a defined preset 4. render the whole track into an audio-format (i.e. wav, aif) 5. compress this in ogg/mp3 6. save and close the song the same should be possible with an audio-track instead of an midi-track. but here i don't want to put an instrument but an plug on it. just imagin that you have a virtual, full-remote- automatable cubase-server. :) this solution could be useful for an internet-remote-audio-creation application. thx for response, rené ------------------------------------------------------------------ | ____proAudioSys - professionelle Audio-Systeme______ (~) /___www.proaudiosys.de_____________________________ # / __X____ #/___René Oelke__Neue Bahnhofstr. 26__10245 Berlin__ | | | | /___030 / 29003200__0179 / 4594543_________________ | | | |/___r.oelke(a)proaudiosys.de_________________________

21 years, 6 months

[linux-audio-user] permissions of /proc/asound/card1/pcm0p/oss

by Atte André Jensen

I cannot figure out how to automatically set permissions of /proc/asound/card1/pcm0p/oss. I tried Having the line options snd major=116 cards_limit=4 device_mode=0660 in /etc/modutils/alsa, but alsa won't come up, saying: "Unknown symbol device_mode". Google tell's me that is a common problem. Is there a new way of setting the permissions of /proc/asound/card1/pcm0p/oss or /proc in general??? This is on kernel 2.6.4... -- peace, love & harmony Atte http://www.atte.dk

21 years, 6 months

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