Linux-audio-user January 2008

linux-audio-user@lists.linuxaudio.org

142 participants
145 discussions

by David L. Craig

I reopened Kernel bug 5920 when I started getting NMIs again when attempting to use MIDI (Rosegarden). This is again because I replaced my M-Audio Delte 1010 when it became clearly defective. I had hoped the new card would not have this problem but it is clearly not so. So I'm asking the list if anybody is happily using this card with MIDI? ----- Forwarded message from bugme-daemon(a)bugzilla.kernel.org ----- Subject: [Bug 5960] NMI 35 Causes Reboot In-Reply-To: <bug-5960-7015(a)http.bugzilla.kernel.org/> To: dlc(a)radix.net From: bugme-daemon(a)bugzilla.kernel.org Date: Tue, 1 Jan 2008 15:55:06 -0800 (PST) http://bugzilla.kernel.org/show_bug.cgi?id=5960 dlc(a)radix.net changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REJECTED |REOPENED Resolution|INVALID | ------- Comment #18 from dlc(a)radix.net 2008-01-01 15:55 ------- Well, I finally got an RT kernel (2.6.23.11-rt14) functioning to support Rosegarden only to start getting NMI 35s again with the new M-Audio Delta 1010 card. So either two cards have the same defect or there's something about my environment (IBM Netfinity server) that doesn't play nice with the card. I'll post on the LAU list to see if anybody is successfully using this card with Rosegarden. And I'll roll up my sleeves to see if I can isolate the catalyst as I did before (possible now that I've finally found this report). ----- End forwarded message ----- -- May the LORD God bless you exceedingly abundantly! Dave Craig - - - - - - - - - - - - - - - - - - - - "'So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe.'" --from _Nightfall_ by Asimov/Silverberg

18 years, 1 month

Re: [LAU] Saving youtube audio and video

by Kjetil S. Matheussen

Adam Sampson: > thomas fisher <studio1(a)commspeed.net> writes: > >> Tommi promising looking application, but it appears to be not open >> source and a limited trial time period teaser. > > It's really not very hard to save videos from YouTube, and no > proprietary software is required -- you just need to build the right > URL, and there are various scripts to do that: > > http://www.arrakis.es/~rggi3/youtube-dl/ > http://offog.org/darcs/misccode/youtubeget > > (I wrote the second, but I wouldn't have bothered had I known the > first existed...) > > The resulting files can be played with VLC or MPlayer. Here's my script to reliably stream youtube videos: (it depends on yotube-dl) #!/bin/sh rm -f /tmp/ai echo $1 >/tmp/link xterm -e youtube-dl `cat /tmp/link` -o /tmp/ai & while [ ! -s /tmp/ai ] ; do echo "File not available yet, sleeping 2 seconds" sleep 2; done echo "Caching 10 seconds before starting to play" sleep 3; echo 7 sleep 3; echo 4 sleep 3; echo 1 sleep 1; echo 0 echo echo "In case mplayer stops abruptly, run:" echo "mplayer -delay 0.3 /tmp/ai" echo "...to manually restart the player." xterm -e mplayer -delay 0.3 /tmp/ai

18 years, 1 month

[LAU] Rosegarden: tablature?

by Studio 32

Is it possible to write guitar and bassparts on tablature in Rosegarden? If not, is there another way? For example a program like kguitar for bassguitar? Regards, _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

18 years, 1 month

[LAU] Saving youtube audio and video

by lanas

Folks, Is it possible to see a youtube video (and audio) on disk so that, for instance, it can be played on the TV using MythTV ? Al

18 years, 1 month

[LAU] X, gnome-panel, jackd, ardour/rosegarden weirdness

by John Anderson

I want to share one of those weird things that may save somebody's hair follicles from excessive trauma: Today I had a power failure. When my machine booted up again, I was finding weirdness with ardour, rosegarden, jackd and X. On startup or shutdown or rosegarden and/or ardour, X would stop responding to keyboard and mouse clicks, but would still move the mouse cursor. Ardour was still talking nicely to the BCF, but X was totally dead. I could ssh into the box and kill the X server. I eventually tracked it down to gnome-panel talking to evolution-data-server. I've just rebuilt gnome-panel without that capability, and stability has returned. bye John

18 years, 1 month

[LAU] Timestretch without sample damage.

by J M Needham

The audacity time stretcher is great, rubberband is even better but they both put chunks of silence into the samples when I use them. So far the only way I've found of getting around this is to stretch it (or crush it) to close to what I want, then remove the tiny chunks of silence and then use a speed changer in audacity to make the sample exactly how long I want it, which of course affects the pitch but unnoticeably. Am I doing something wrong when using these tools? The problem I'm trying to solve is to get a chunk of wav of length y to be of length x without affecting pitch. Existing tempo changers that I've seen put some silence in the output file when I use them. Again, usual disclaimer: If I'm being stupid, let me know. God Bless Jonty

18 years, 1 month

[LAU] Laptop for live performance and recording

by julien lociuro

Hi all, As you probably know from my previous post (MacBook Pro or not..) I plan to buy a laptop for audio work. Here some questions that arise after some investigation. 1) It is recommended to have 2 separate hard drives. One for os/programs and one for audio files. Is it though necessary to have the first one, say the internal one at 7200rpm, if the second one (external, USB-2) used for audio files is 7200? Problem is that most of laptops have 5400rpm for their internal drive. Is it any big advantage of having a 7200rpm for the internal drive too? 2) A thing I've read is that one of the biggest downsides to Linux on portables, especially Apple portables (assuming the LCD and other peripherals are basically working) is poor support for power management - sometimes dangerously poor. Can anybody tell me if this is still true, and what does this mean? 3) As an audio card I was thinking about the FireWire Edirol FA-66, which is "reported to work" under linux, and is supported under mac osx. 4) What do you think of these laptops? Especially built for audio. But, can we trust them..? http://rainrecording.com/products/livebook http://www.musicxpc.com/prodtemplate.asp 5) Not all laptops have a firewire port. Most have an extension card slot (express, etc..) which can be used to have firewire. But from what I've heard, linux doesn't have (good) drivers to support those cards. Most of laptops which have firewire have a 4-pin (not ok if you want the 2 additional to have power supply for the card, which is nice for live performance). MacBook(Pro) has a 6-pin firewire port. 6) As it has been told, a Texas Instrument firewire 1394 chipset is needed to get proper performance with the soundcard. MacBooks have this chipset. But it seems that not a lot of other laptops do have this chipset (it seems like Dell don't have), some HP have. Anyway it's difficult to find the information. So here, the MacBook would anyway be a good choice. 7) some interesting laptops include Asus V1s, Lenovo ThinkPad T61, Dell Lattitude D830. Anyone using one of those for audio under linux? Do they have a TI firewire chipset? HP8510p seemed good at the beginning, but it's reported that its broadcom card and ATI graphics card is not well supported 8) would a 13" screen be ok..? There is this MacBook (not Pro) which is dual-core but only at 13". It seems to have great performance (and 700€ less that the MacBook Pro). 13" has 1280 x 800 resolution. Is that reasonable or would I freak out..?:-)Most consumer laptops with 15.4" screens have the same resolution as 14" and 13.3" screens (1280x800). So if possible customize a workstation machine with a higher resolution display... like a dell lattitude or a lenovo thinkpad. These machines will allow you to configure the machine with a a 15.4" display that has a resolution of 1440x900 or 1680x1050 9) The mac book has a Intel GMA X3100 graphic card (with 144 MB SDRAM DDR2) shared (not dedicated) with main memory. Is this a problem for audio processing only? Also, is this card supported under linux? mac book pro on the other hand has an NVIDIA GeForce 8600M GT, which would be more supported I think. 10) Has anyone used a MacBook and or MacBookPro with 64Studio? If I cannot use 64Studio on my laptop, this will be very annoying. How to know that the laptop will be supported by 64Studio? As you can see, I tend to think that a MacBook is the best choice. It costs around 1100€ (~1600$). Probably not the Mac Book Pro which costs 2500$. 11) I see that some audio applications are ported to MacOsX. Jack, freewheeling, zynaddsubfx. Although no midi support for zynaddsubfx. Ardour I think too. A dual-boot mac osx, 64-studio would be necessary. This is a big mail..lots of questions..hope some of them will be answered. Thanks so much and happy new year!. -- julien

18 years, 1 month

[LAU] QJackCtl and JACK MIDI

by Dave Phillips

Greetings, I want to start working with JACK MIDI, but I'm not sure I understand its requirements. I have a recent QJackCtl with the separate MIDI and ALSA tabs, and I note that in Setup there's a MIDI driver selector. Everything's fine if I leave it at None, but JACK won't start if I select either Raw or Seq. I receive a rather cryptic message " Unknownage with option 'X' " and that's it. JACK is version 0.103, QJackCtl is version 0.3.2, on JAD 1.0. Please advise if other info is needed. Am I missing something obvious ? Also, where can I find the sources to the aseq2jackmidi module ? (Yes, I'm too lazy to search the LAU archives.) Best, dp

18 years, 1 month

[LAU] Compiling Lied

by David Baron

Truthfully, this is a editor for lilypond files. Keep getting missing xft_... references. If this be xfont stuff, I have all the libraries installed and the configure does not kick. Any ideas?

18 years, 1 month

Re: [LAU] Mac Book Pro or not

by julien lociuro

Hi Robert, Thanks for your advices. There is something I did not really understand: > As far as audio applications go, if the application can use portaudio, > jack or coreaudio, you're probably fine, but if it needs alsa then > you're not. This applies to midi as well, which is quite a limitation at > the moment, but will become less so as jack midi catches on. With the above you say that midi & alsa will not work. But will not work in MacOSX or on a Mac (even with a linux partition) in general? I mean, is it possible to install linux (have dual boot: mac osx and linux) on a Mac, and from a linux distro like 64Studio, use midi and alsa properly? Thanks! Julien julien lociuro wrote: > > Is it worthy to buy a Mac Book pro? Has anyone ever worked with this > > machine? > > I see that a linux can be installed on it. Is this recommended? Has > > anyone worked with the Mac OSX? > > Can we directly install linux apps on it as it is unix-bases os? (with > > some additional libs?) > A lot of *nix apps will work on mac os x either in a Cocoa native > version or using X11. There are various package management systems to > help you with this if you like, such as Fink, Darwinports and Gentoo. > They all have their pros and cons, for instance I've found that Fink's > packages are often a little out of date, while the other two usually > build from source, which can be an inconvenience. > > As far as audio applications go, if the application can use portaudio, > jack or coreaudio, you're probably fine, but if it needs alsa then > you're not. This applies to midi as well, which is quite a limitation at > the moment, but will become less so as jack midi catches on. > > Apart from this, I can't think of any ways in which you are likely to be > worse off running intel mac os as opposed to Linux, except that it is > probably possible to squeeze extra performance out of Linux system. From > what I understand, the Mach-based kernel that OS X was quite > inefficient, although I have also read somewhere either that this has > changed somewhat or that it is going to change sooner or later. My > memory is a bit foggy here, so you'll have to do your own research. > > > > > > Also, my concern is that it really costs a lot..in europe, 1800? for > > the basic model (15" monitor). > > With that money, isn't it better to buy another great laptop? > If you want to run an OS apart from Linux, you're much better off with > Mac OS than Windows. There are, in any case, a number of ways to run > Windows apps in Mac OS. > > > > Also, is there any problem with laptops and linux? How can I be sure > > linux could installed on it..(graphic card, processor, firewire..) > There are a number of websites addressing Linux laptop compatibility. > The Ubuntu wiki I think has a good section on this. This can be a very > tricky area. Chances are that intel macs will be relatively well > supported like their predecessors, but you will need to do your > research. One advantage of a mac is that if you do have problems with > Linux hardware support, then you will at least have the option of > switching to another quality OS that definitely "just works". > > > > Advices welcome!! > > > > Thank you very much. > > > > -- > > julien > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Linux-audio-user mailing list > > Linux-audio-user(a)lists.linuxaudio.org > > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user > > >

18 years, 1 month

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Linux-audio-user January 2008