Linux-audio-dev May 2003

linux-audio-dev@lists.linuxaudio.org

71 participants
56 discussions

[linux-audio-dev] About Kylix, music, Linux, etc.

by Pedro Lopez-Cabanillas

Hi all, I'm not a Pascal fanatic at all. Furthermore, i don't consider myself as a fanatic in any sense. Well, perhaps i spend too much time with computers, and i love them as much as i love music. And i love Pascal too, as much as i love Linux. So, when Delphi landed in Linux incarnated as Kylix, it made me very happy. From an ethic point of view i would prefer Free Pascal, (www.freepascal.org) but Linux is already some kind of market, and there are some companys making money with products running in Linux: Oracle, IBM, etc... Why to blame Borland and not others? You can get Kylix 3 "gratis" (as a beer) from the Borland site. This "gratis" Kylix version has a proprietary license with an unusual mandatory clause: every program you do with it must be GPL licensed, if distributed. Some libraries included (the runtime library and the basic CLX components) are not only free as a beer, but also GPL licensed. This is why we are able to distribute these libraries as rpm and deb packages for people that want to use our programs, but do not want to install the whole compiler and IDE. See http://kylixlibs.sourceforge.net Kylix is based on Qt, this is the basic witget toolkit for every Kylix program. Kylix libraries include a Borland modified Qt library. Also GPL'd, of course. Kylix programs can use a heavily evolved Pascal dialect supporting OOP, and many extensions to the ancient language. Free Pascal also supports OOP and many extensions. Pascal is not dead, as you can see: it is growing, spreading and evolving with enough good health. And you can use the same libraries and components (object code compatible) with the C++ compiler included with Kylix 3. I've made a unit in Pascal (plain good old Pascal) to use ALSA with Kylix and Free Pascal programs. It is a bit outdated now, but i promise you an update soon to be synchronized with latest ALSA library releases. In my site you will find some examples in plain old Pascal, and some programs (for Kylix only) using OOP for several MIDI applications. I'm not using Sourceforge yet, because my project is very new and nobody has asked me to share a repository, but my intention is to do so as soon as needed. We will be not alone there. If you browse sf.net now, you will find 1076 projects using Delphi/Kylix, and some more using Pascal and Object Pascal. And many thanks to Dave Phillips. He included my ALSA MIDI metronome (one of the sample applications) in his site "Sound & MIDI Software For Linux", although he don't remember what this program is ;-) Regards, Pedro -- ALSA Library Bindings for Pascal http://alsapas.alturl.com

21 years, 7 months

[linux-audio-dev] final scratch + native instruments

by Paul Davis

http://news.harmony-central.com/Newp/2003/Final-Scratch-11-Traktor.html i poked around the website(s) but couldn't figure out if this means that TraktorFS runs on linux. someone with more time might be inclined to find out ... --p

21 years, 7 months

[linux-audio-dev] Re: Kylix

by Robert Jonsson

Hi, >> Qt can also be developed using a WYSIWYG style editor called >> QtDesigner. If you go ahead and compile QtDesigner with the KDE >> classes, you can use the KDE widgets for that style of editing as well. >> > >Qt designer looks cool but it does not have a compiler mode to compile >and debug from it. It is not really a true IDE or RAD tool for >development. It is very very close to Kylix though if they just had the >ability to compile and develop within it. No QT designer is just the "wizard", it needs to be accompanied by an integrating environment. > >> Christian is right - Qt beats MFC hands down. MFC was a nightmare for >MFC is the biggest pile of crap I ever used. I hate it 1000 times more >than I hate GTK. At least GTK is free, so I won't rag on it. I just did >not like the way GTK works at all. But MFC was just pure bullshit. :-) heart warming > >When I mean RAD tools, you really had to use Borland C++ Builder. >Imagine the ease of Visual Basic but with C++. That is how it was like. > >If you ever used Visual Studio .NET it's alot like the C# Windows forms >stuff. Drag, drop, point, click, write code, compile, run, whoopee! Next >part. > >I love GCC but all the kits are just too painful for using it for GUIs >so far. Way too hard and awkward to use. I like the ease of Visual Basic >but with the power of C++. Kylix/Borland Builder does this so nicely >you'll flip when you use it and find out how powerful it is. And it >isn't a mickey mouse solution either, it is really a very powerful API >attached to it to do really advanced GUI work in C++ or Delphi. Yeah, this has been the culprit for me many times also. I just don't have the time/stamina/whatever to do something other than GUI-less tools without a good IDE. Professionally I write a little in Java right now, and I think the tools available there are lightyears ahead of the current stock of tools for C/C++ (especially compared to the ones available in Linux). Java IDE's like Idea(costs money) is just sooooooo complete. As for Kylix, I did try it once but for some reason never got around to do anything serious with it, I think it's because it is something of an outsider in the opensource community...dunno.. I've done my fair share (more than that probably) of searching for good development tools under Linux. As for full IDE's there are currently three IDE's that I think deserves mentioning. http://anjuta.org http://eclipse.org http://kdevelop.org Where I have used anjuta for a C based project and was very pleased with it for a while, but it was still to buggy, so I stopped... Eclipse is IBM's javabased super-all-in-one, now opensourced master-meta IDE that will(and does) support everything and the kitchen sink ranging from atoms to atombombs. The C++ part of Eclipse is rather primitive as of yet though, and it doesn't support any GUI tools. The java part is really cool though and I've used it several times for smaller projects. My personal favourite of the bunch is Kdevelop. I've done a C++ projekt in Kdevelop a few years ago (no gui) and it worked rather well. A new version of kdevelop is under heavy development, 3.0, this release seems, on the drawing board to be extremely well equipped for C++ projects, especially if you are doing gui-based development with QT or KDE toolkits. I haven't tried it myself, but kdevelop IS supposed to integrate with QT designer, I'm not sure how much is already finished though... I've tried the alpha releases with varying degrees of success ;) My testbench is to try and import MusE's source code and try to browse through it and get it to compile from inside the IDE. Mostly works now :) > >What I am wondering about is the License to Kylix. Where is it? I am >guessing that is why it has not been adopted more by OSS people. You are talking about the 'free' version of Kylix right? I think all libraries that you make with that are GPL, correct me if I'm wrong. And the founding reason for that is probably because Kylix's GUI-toolkit is based on QT (!), which in it's free form is GPL. As for not so much adoption in the OSS community, I think it's simply because it isn't true OSS by itself. But I DO think it's a great tool, and Kylix DOES support C++ right? If it fits your bill, go ahead and use it! If you provide binaries for your projekt then people only need the runtime-environment and, though big, isn't as big as the whole of Kylix :) Personally I'm waiting for Kdevelops latest generation :-). Probably forever ;)... Regards,

21 years, 7 months

[linux-audio-dev] FW: Academic Discounts on Microsoft, Adobe, & Macromedia

by Sherawien

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Call 800-679-7007 to order any of the products below. --------------------------- Education Standard You Corel: Price Retail Save! --------------------------- --------- ------ ----- Corel WordPerfect Office 11 $98.95 $299 67% Corel Draw 11.0 $142.95 $549 72% Corel Designer 9 $98.95 $469 79% Procreate Painter 7.0 $229.95 $549 60% Call 800-679-7007 to order any of the products below. For our website address, please send a blank email here: Mailto:9lo09ik@gmx.de?subject=MORE%20INFO You will receive a response with our web address. PURCHASE ORDERS MAY BE FAXED TO: 800-679-6996 REFERENCE THE FREE SHIPPING CODE ON YOUR PURCHASE ORDER FOR FREE SHIPPING. ---------- LICENSING: ---------- For school purchases of five to ten (5-10) or more units, depending on the product, please call 800-679-7007 for even deeper discounts on license packs. ---------- For hundreds of other software products available from CPE at similar discounts, call us at 800-679-7007. Academic Edition software is exactly the same as the Full-Retail versions* except that it has been deeply discounted for Qualified Education Buyers. No verification is required for purchases of Microsoft Office XP Standard. For all other products, purchasers must provide fax-verification of status as being a current faculty, staff, or student. After placing your order, you simply fax to CPE either: (a) a copy of a current picture School I.D. Card or, (b) a current paycheck stub with an alternative picture I.D. (drivers license, etc.). Schools may purchase by faxing a valid school purchase order. For more details, call us for our website address. All software sold by CPE is authentic original software from the manufacturer. THESE ARE NOT PIRATED COPIES. ALL SOFTWARE COMES IN ORIGINAL MANUFACTURER'S BOXES AND INCLUDES A VALID LICENSE. CPE is an Authorized Education Reseller for Microsoft, Adobe, Corel, Symantec and many other major software manufacturers. CPE is a national software distributor committed to providing the lowest prices possible to the Education community with the best customer service!! All prices and availability are subject to change without notice. *Some Academic Edition boxes may not include supplemental materials, such as extra fonts, image libraries, or third-party(OEM) products, which are included in the Full-Retail versions. However, the core-programs themselves are exactly the same. ___________________ We hope you find this message valuable. If you do not wish to receive any more special offers and updates, please send an email to: Mailto:9lo09ik@gmx.de?subject=REMOVE ___________________ THANK YOU!

21 years, 7 months

[linux-audio-dev] Re: final scratch + native instruments

by Martin Buechler

> http://news.harmony-central.com/Newp/2003/Final-Scratch-11-Traktor.html > > i poked around the website(s) but couldn't figure out if this means > that TraktorFS runs on linux. someone with more time might be inclined > to find out ... Hi, All you might want to know about Traktor FS, may be found at http://www.nativeinstruments.de/index.php?id=traktorfs_us Where they clearly state: --8<----------- Final Scratch on Linux and Mac OS X: Powered by TRAKTOR FS -->8---------- BTW, I live next door to Native Instruments' office, and I heard and saw that Traktor DJ stuff working on their release party in our favourite low-tech cocktail bar, quite impressive, but those people (~30) of NI actually forgot to pay their bill for about 4 weeks ;) Alas, don't know what OS it was, but if something remains unclear, I might jump in my pants and go ask them. Martin

21 years, 7 months

Re: [linux-audio-dev] Echo Darla/Gina/Layla/... on Linux

by Moran, Craig M (BAH)

I would dearly love to see some Layla20 ALSA drivers for Linux. I have been waiting for 3 years! I have no kernel hacking experience nor driver writing experience. Craig M. Moran Booz|Allen|Hamilton Advanced Technology Team 301-757-0616

21 years, 7 months

[linux-audio-dev] LAD-Conference in german "Linux-Magazin"

by Frank Barknecht

Hallo, in case nobody noticed it yet: The 06/2003 issue of the german "Linux-Magazin" has a feature on our LAD-conference in Karlsruhe by Stefan Klett. Nice work, Stefan. ciao -- Frank Barknecht _ ______footils.org__

21 years, 7 months

[linux-audio-dev] Rectifier algorithm and Exponential FM question

by nickt

Hi, Sorry if this is the wrong list. I have never found a list with people who can help me with these kind of questions. I am trying to figure out how a rectifier works in code. I have created something like it using tanh() distribution ( which will turn a sine wave into a sort-of-square wave). I can also achieve it with hard clipping/saturation. In the same sense I'd also like to know how a smooth operation works as well. I can not find any source code or explanations to help me figure out the algorithm yet. My other question is how are exponential signals generated? I want to experiment with exponential FM. My only understanding of Exp. Fm is that it sweeps half down and full up ( at 440hz, it would sweep 220hz down and 880 hz up). I haven't much of an idea how this is achieved. How do I convert a sine wave into an exponential signal for Exp FM?

21 years, 7 months

[linux-audio-dev] sonic foundry + sony

by Paul Davis

all my interactions with sonic foundry were unpleasant, and i have no idea what "rich media" means, but now we have another 800lb gorilla in the tent, and another valuation of how much its worth to create a program like Acid: US$18M. http://news.harmony-central.com/News/2003/Sony-Sonic-Foundry.html

21 years, 7 months

[linux-audio-dev] JACK 0.70.4 release

by Taybin

JACK 0.70.4 release JACK is a low-latency audio server, written primarily for the GNU/Linux operating system. It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. Its clients can run in their own processes (ie. as normal applications), or can they can run within the JACK server (ie. as a "plugin"). JACK is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of all clients, and low latency operation. CHANGES: qjackconnect/jack_lsp bug fixed. now can use either SysV or POSIX shm methods. Linxu 2.4.4 is required for the POSIX method. Defaults to SysV, but can be switched with a ./configure option (--enable-posix-shm) new --enable-optimize configure time flag, for compiler optimization. jack_set_buffer_size_callback() de-deprecated. added port metering API. added option --timeout (OR -t) for client timeout. The default time is as before: 500 msec. jack_lsp now has usage (-h or --help) and version (--version) options. various bug fixes and documentation updates. CAVETS: The shm code requires the tmpfs kernel module either loaded or compiled in. A tmpfs filesystem must be mounted as well. This can be done by adding: tmpfs /dev/shm shm defaults 0 0 to /etc/fstab and running "mkdir /dev/shm; mount /dev/shm". In versions of linux prior to 2.4.4, tmpfs was known as shmfs. Client programs compile with the previous stable release (0.61.0) will need to be recompiled to work with 0.70.4. Client programs now need to also link against librt. That library should be automatically included via pkg-config. Taybin Rutkin

21 years, 7 months

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Linux-audio-dev May 2003