Linux-audio-dev

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7516 discussions

Re: [linux-audio-dev] ALSA OSS Emulation and emu10k1

by Peter Zubaj

Hi, AFAIK: OSS device on emu10k1 is always routed to front channels. Routing can be changed through alsa mixer api (there are controls controling channel routing), but this is not simple and there is problem to know what oss stream uses what hw stream, because these are alocated dynamicallly. Other ways will require driver change. Peter Zubaj ____________________________________ http://www.pobox.sk/ - najvacsi slovensky freemail

20 years, 11 months

[linux-audio-dev] ALSA OSS Emulation and emu10k1

by Melanie

Hi, I was wondering, is it possible to assign /dev/dspX devices to the secondary and tertiary PCM devices on an emu10k1? I have a SB Live! Platinum with LiveDrive IR. The stereo out is connected to my regular set of speakers. The surround output is connected to an earphone headset, it's mic is connected to the mic input on my sound card. Also, another microphone is connected to the mic/line on the LIveDrive. Now, I use skype, which is closed source. It uses OSS devices and aoss will not work with it. I would like to have a /dev/dspX device that records from the mic input and plays back to the surround output, so that skype, and skype only, will use the headset. The headset works fine in alsa mode and alsa apps can use it perfectly well. I tried all /dev/dspX and /dev/adspX devices, to no avail. I tries aoss with .asoundrc modifications, no luck. I even read the driver source, but I'm not really conversant with the structure of the driver and couldn't find anything useful. It would take me forever to figure it out from the source code. Is it possible, maybe with module parameters, to make alsa do this? Would it need a patch, if yes, does someone have one? If no, what would have to be done where to make that work? Melanie

20 years, 11 months

Re: Behringer [was Re: [linux-audio-user] Re: [linux-audio-dev] RME is no more]

by Marek Peteraj

On Sun, 2004-11-28 at 14:03, tim hall wrote: > Last Saturday 27 November 2004 21:36, Lee Revell was like: > > On Sat, 2004-11-27 at 15:43 -0500, Lee Revell wrote: > > > > Did this happen? > > > > > > Maybe not to them but look at Mackie and Behringer. > > > > Just to save people some googling here is a thread that documents the > > long and colorful history of pro audio hardware manufacturers blatantly > > ripping each other off, often leaving the victims with no legal > > recourse: > > > > http://homerecording.com/bbs/archive/index.php/t-74439.html > > > > IMO the issue is not whether RME's concern is valid - clearly it is. > > Sorry, but arguing otherwise makes us look stupid and naive. The issue > > is how to address this concern. If that means a closed source Linux > > driver, fine. > > > > Maybe the reason no firewire hardware is supported is because Behringer > > and their ilk would instantly have all the info they need to copy the > > design and mass produce it. Doesn't matter how cheap the device is to > > design - it will _always_ be cheaper to rip someone off than design it > > yourself. They can even sell at a loss, due to huge cash reserves - > > they only need to sustain it long enough to put the competition out of > > business. In the case of the "Swizz Army Tuner", the original designers > > were ripped off by Behringer, but a lawsuit would have bankrupted them > > _even if they won_ so could not take action. > > > > I think many people in this thread underestimate how cutthroat the > > hardware business is. > > Yeah, If I was the MD of RME, after reading some of the responses on this > thread I'd be thinking of flippin' the bird at all these ungrateful linux > users. I think it's about defending the position of open source and its nature. And the work that people do here no matter whether for fun or not. >From now on every company that doesn't do it like audioscience does, is a plain loser to me, no matter whether they provide specs or not. It's because other people do the actual work + support providing. If MacOSX can have them, so can we, we have a greater marketshare. Why the heck should we *always* understand them? Why can't they understand *us*? > We're a minority group and I think the onus is on us to convince RME > to produce a driver for their firewire hardware, politely and if necessary, > via the florists ;-). OK, so closed-source drivers are far from ideal, but > better than a hole in the head. http://www.audioscience.com If they can, who can't? I can't see the difference, can anyone explain? > > It means that the drivers can't be bundled with distros and we won't be able > to provide users & developers with technical support, which is a great shame. > > However, I suspect a certain amount of well-reasoned persistence will pay off > here. Sure, our numbers on this list aren't great, but they are significant. There are many audio hw customers outside of this list (see CK's post for example, or judging form experience - somewhere on #gnome talking about rme ;) plus tons of talks on #lad - Q: "hi, what's the best card for audio under linux? A: "rme or if you don't have that much money, maudio") > > OK, _very_ few people are using firewire technology for music, up till now I'd > considered it the preserve of mac/motu users. I think a majority of pc based audio hw will be fw based in the near future. Every manufacturer will have at least one product. Scary. > I think we should continue to > support RME where licenses allow and look forward to the day that they > release their firewire drivers :-). That is going to be the day their hw becomes redundant on the market? Or even discontinued? That's the problem i'm seeing. > I think we should keep up the pressure on > manufacturers like MOTU too. They'll see sense eventually. ;-] I doubt it. They have their own sw products, like the DP. In their case i can pretty much understand why they don't do that if they see linux audio as a competition. > > Mine is an equally naive viewpoint, but with the knowledge that a little bit > of positive thinking can go a long way, especially when backed up with a > well-researched wish-list and plenty of patience. 2 years korg and now this. Trust me it's not possible to cope with that for a long time :) Marek

20 years, 11 months

[linux-audio-dev] Re: [linux-audio-user] Linux audio hardware market research [was: creating a wiki "soundcard experiences" site]

by Marek Peteraj

On Sat, 2004-11-27 at 11:06, MarC wrote: > what about creating a wiki website to submit "soundcard experiences"? This also seems like a good idea to me, and it would be cool to have a knowledgebase like that. However i think that doing a survey in order to measure how big the linux audio market is is a different project. Similar to what David did, i imagine that a RME (or M-Audio) customer would submit his name, optionally email, choose type of his card from a list, and enter approx. date of purchase so that we can track the growth of the market(thus it's possible to roughly estimate its future growth). Also we'd need to announce it to a broad range of people, LAD/LAU/LAA, ALSA-dev/user/site, and Slashdot i suppose, so that we reach as many such customers as possible. Let's also not forget about OSS users which are also linux users. (I personally reckon a few people from #lad having troubles with alsa, they switched to oss for that reason). However, since i've got no php experience and very little mysql experience, i can't tell how hard it would be to do such a sumbit/log system. Marek

20 years, 11 months

[linux-audio-dev] gibson magic?

by smoerk

btw, is there anyone working on an implementation of gibson's magic for linux? is it even possible?

20 years, 11 months

Re: [linux-audio-user] Re: [linux-audio-dev] RME is no more

by Marek Peteraj

On Thu, 2004-11-25 at 20:50, Florin Andrei wrote: > On Thu, 2004-11-25 at 04:22 -0500, Rick B wrote: > > > I kind of got the impression that the annoucement was just pertaining to > > RME *Firewire* audio interfaces. Consider that they have released some specs for their HDSP hammerfall series, which uses a *proprietary* firewire protocol and that their latest PC products were based on IEEE1394 except one or two PCI based cards. > > That's what i thought. "RME is no more" seems a bit exagerated (although > i feel for the person who bought the card thinking it's supported by the > Linux drivers). I don't think it's exagerated, see explanation above. I knew exactly it wasn't at the time i bought it, i just took it for granted. I talked to Thomas Charbonnel back in april at the ZKM and it seemed that they were positive about alsa support for fireface. > > Anyway, beyond Linux support tribulations, the RME Fireface is a great > card. I just read a review in the international Dec 2004 edition of > Sound On Sound - it's really cool. It has all the things that i wish the > Multiface had. I can only agree with that. But that's even worse for us then. ;) > > Sadly, if there's no support for Linux, i guess i won't buy it. It's not > like the world ends with RME or anything. Well it's close to such situation in the linux pro-audio world. The two major players in pro-audio hw market that supported ALSA development if only indirectly by providing specs, were m-audio and... rme. Have a look at the ALSA matrix, it's a pretty sad situation. The only *real* hw manufacturer in my eyes is audioscience, they provide their own ALSA drivers(that's how it should be) but produce only broadcast cards. Marek

20 years, 11 months

[linux-audio-dev] Fw: [linux-audio-user] brasil + linux

by Florian Schmidt

Begin forwarded message: Date: Fri, 26 Nov 2004 19:48:10 -0200 From: "criscabello ." <criscabello(a)gmail.com> To: linux-audio-user(a)music.columbia.edu, articuladores(a)arca.ime.usp.br Subject: [linux-audio-user] brasil + linux hi all!! my name is criscabello and i´m from brasil. please excuse my poor english. at first, i'd like to thank all of you linux audio developers who made it possible for us to work with free plataforms. all of us, brazilians, are very pleased with the result of all your work. let me explain. i work in a government project called "pontos de cultura" (points of culture), and it is based in the distribuition of media stations with free software to some places who are in a state of digital, or social, exclusion at this time (but not much longer, we hope). this project has a national scope, and in the beggining of 2005 will be distribute more than a hundred (100) media kits, with projections of distributing another thousand (1000) in the next two years! last saturday our group had a meeting with our minister of culture, gilberto gil, to showcase some softwares for media production (like ardour, audacity, hydrogen, jack, alsa driver, cinerrela, kino, etc...), and he was totaly convinced about the possibilities of our free software media production kit. He also understood the power of collaboration based work and open source development - this article from wired magazine (http://www.wired.com/wired/archive/12.11/linux.html) says more about the minister. oficialy, gil represents our nation, and his opinion represent all Brazilian's voices! at the end of our meeting, we recorded one of his songs using ardour, gil is a popular singer in brazil (and the world) and this was his first recording using free software. during the session the only thing in my mind was: thank you so much paul davis and all the developer communities! you all can listen to the song (and sample and remix it if you like, it is distributed under a creative commons license) from here: in ogg format: http://banto.hipatia.info/maquina-de-ritmo.ogg in mp3 format: http://www.pirex.com.br/pirexmp3/maquina-de-ritmo.mp3 this e-mail is to tell everyone that this is just the beginning, we have much work to do together (can you imagine the demands from all of these people working with our free platform?). and i'm so glad for this momment. thank you so much. criscabello ps. please foward this message for the developments lists.

20 years, 11 months

Re: [linux-audio-user] Re: [linux-audio-dev] RME is no more

by Marek Peteraj

On Fri, 2004-11-26 at 19:36, Georg Rudolph wrote: > Please, let's not be too harsh. I recently bought the pcmcia based > multiface from RME, only because it has linux support, and it works > great, on both kernels. Of course, firewire is cooler, but there is this > way out. Not for me. :) anyway it seems there a *lot* of linux audio users that bought RME because of alsa support. How about doing a list where everyone can submit his name and type of RME card so that we can see how big and attractive the market currently is? Marek

20 years, 11 months

Re: [linux-audio-dev] Rosegarden: All Notes OFF

by Pedro Lopez-Cabanillas

On Thursday 25 November 2004 18:02, Chris Cannam wrote: > On Wednesday 24 Nov 2004 22:06, Jens M Andreasen wrote: > > According to my oldish midi-spec, controller (decimal) 120 is > > undefined, so I was somewhat confused at first when I got it from > > Rosegarden. > > > > A bit of digging shows that it belongs to the (newish?) GS-spec, and > > means All-Sound-Off (as in 'killall -9') > > Ah, that controller. > > This is what happens when you rely on public interpretations of a > proprietary spec. Quite a few sources claim this controller _is_ in > MIDI 1.0, and since most contemporary synths interpret it as expected > (silencing all notes even if sustain is active), the matter wasn't ever > really questioned. Well. Here is an official source that claims that control change 120 is in MIDI 1.0 (1995 revision). It is not the whole MIDI 1.0 spec, only a summary. http://www.midi.org/about-midi/table1.shtml Channel Mode Messages (See also Control Change, above) ------------------------------------------------------------------------- 1011nnnn 0ccccccc Channel Mode Messages. 0vvvvvvv This the same code as the Control Change (above), but implements Mode control and special message by using reserved controller numbers 120-127. The commands are: All Sound Off. When All Sound Off is received all oscillators will turn off, and their volume envelopes are set to zero as soon as possible. c = 120, v = 0: All Sound Off [...] The book "MIDI programmer's handbook", (C) 1989 by DeFuria & Scacciaferro, does not mention this controller. I guess that ancient MIDI instruments manufactured before the 1995 revision can't be blamed if they aren't fully compliant. Regards, Pedro

20 years, 11 months

[linux-audio-dev] New releases

by Fons Adriaensen

Hello LAD, New releases of Aeolus and JAAA are available at the usual place : <users.skynet.be/solaris/linuxaudio>. >From the Aeolus-0.3.1 README : * Added 'instability'. Each pipe is individually phase modulated in order to emulate the random fluctuations in a real one. This provides for a much more natural sound, in particular for long sustained notes. CPU load has gone up a bit, but not too much. * New reverb. Comments invited. * Added stereo position slider. Internally Aeolus uses a full 3-D sound format (which you can use with the -B, -C 4 or -C 8 options). The stereo output is derived from a 'virtual stereo microphone' placed in the 3-D sound field. The apparent position can be set anywhere between 'back' and 'front'. * Divisions II and III can now be put at the back. * Wavetables can now be saved to disk. They will be used when Aeolus is later started with the same sample frequency and tuning, giving 'immediate satisfaction'. * New option -W <directory> to select the wavetables loaded on start. * New default colors, a bit warmer than before. * Added -name <name> option, this permits multiple instances when running under JACK. * New 32" stop. In fact just the Trombone 16 scaled down by one octave and tweaked a bit, but quite spectacular if your speakers can handle it. There's also a new demo file, Xmas.ogg (I know it's a bit early :-). For JAAA-0.1.2 : * Added -name <name> option, this permits multiple instances when running under JACK. Both apps need an update of clxclient.so, version 1.0.1. Enjoy ! -- Fons

20 years, 11 months

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Linux-audio-dev