Linux-audio-user July 2010

linux-audio-user@lists.linuxaudio.org

129 participants
113 discussions

New modular synthesis library w/ ruby bindings

by Evan Buswell

Hi all, I've just released a beta of a modular synthesis library using Jack2, with a Ruby module. See http://ebuswell.github.com/Cshellsynth/ There's no mailing list for the project yet, but feel free to email me directly if you have questions/comments/concerns. Enjoy! Evan

14 years, 8 months

Re: [LAU] Free Software Support Re: Reverb to use with LinuxSampler/piano?

by drew Roberts

On Monday 19 July 2010 15:13:54 Bernardo Barros wrote: > Yes, but a lot of stuff is not presently appealing to industry. > Like... ,music and multimedia stuff: LilyPond, SoundCard drivers, > InkScape, GIMP, Ardour, Qtractor and so on. But yes, even though I'm a > socialist I agree with you that big corporations would benefit with > Free Software a lot. I wouldn't be too sure about that. You might just need to think of which industry. And A lot of the groups I mentioned are normally small businesses around here. There are a decent number of one man operations wrt loclsmithing. Barber shops go from one barber to several but they are not big corporations by any means. The associations may be bigger, but if the members wanted the software written for them to be Free, they could use their association to coordinate their efforts. > > 2010/7/19 drew Roberts <zotz(a)100jamz.com>: > > On Monday 19 July 2010 12:12:54 you wrote: > >> Maybe they always overlap somehow, software needs support. Really good > >> and complex software need more support than one person can do just > >> with his free time. I am not sure from where this support could come > >> from. > > > > I keep thinking that industry groups would be wise to support the > > development of Free software for their industries. > > > > For instance: > > > > Locksmiths > > http://www.aloa.org/ > > http://www.uklocksmithsassociation.co.uk/ > > http://www.masterlocksmiths.com.au/home.aspx > > > > Barbers, Beauty Salons, Furniture Stores, Ocean Engineers, Corner Grocery > > Stores, what have you. > > > > all the best, > > > > drew > > > >> From universities, donations, companies, governments? The Linux > >> kernel, for example, is very complex and needs a lot of work all the > >> time since new hardware and software need it , and it is well > >> supported by really big companies like google, novell and red har. > >> Other areas this is not so easy to get support from companies, so I > >> now just can think of the other options: donations from people that > >> make money or work seriouly with the software, universities and > >> government programmes. The last one seems unlikely to happen but here > >> in Brazil the present government is officially supporting Linux and > >> some software projects. Donations from professionals and Universities > >> can help Free Software a lot too. > >> > >> > >> 2010/7/19 drew Roberts <zotz(a)100jamz.com> > >> > >> > On Sunday 18 July 2010 11:36:42 you wrote: > >> > > On Sun, Jul 18, 2010 at 10:04 AM, drew Roberts <zotz(a)100jamz.com> wrote: > >> > > > Commercial and Free are not opposites. > >> > > > >> > > no, just siblings who fight with each other like crazy for 18 years > >> > > before developing a deep and abiding love for each other :) > >> > > >> > Free and Commercial can intersect / overlap. Venn wise. > > > > _______________________________________________ > > Linux-audio-user mailing list > > Linux-audio-user(a)lists.linuxaudio.org > > http://lists.linuxaudio.org/listinfo/linux-audio-user

14 years, 8 months

Free Software Support Re: Reverb to use with LinuxSampler/piano?

by Bernardo Barros

Maybe they always overlap somehow, software needs support. Really good and complex software need more support than one person can do just with his free time. I am not sure from where this support could come from. From universities, donations, companies, governments? The Linux kernel, for example, is very complex and needs a lot of work all the time since new hardware and software need it , and it is well supported by really big companies like google, novell and red har. Other areas this is not so easy to get support from companies, so I now just can think of the other options: donations from people that make money or work seriouly with the software, universities and government programmes. The last one seems unlikely to happen but here in Brazil the present government is officially supporting Linux and some software projects. Donations from professionals and Universities can help Free Software a lot too. 2010/7/19 drew Roberts <zotz(a)100jamz.com> > > On Sunday 18 July 2010 11:36:42 you wrote: > > On Sun, Jul 18, 2010 at 10:04 AM, drew Roberts <zotz(a)100jamz.com> wrote: > > > Commercial and Free are not opposites. > > > > no, just siblings who fight with each other like crazy for 18 years > > before developing a deep and abiding love for each other :) > > Free and Commercial can intersect / overlap. Venn wise. >

14 years, 8 months

ASCAP Assails Free-Culture, Digital-Rights Groups

by Mark Knecht

Hi, I'm assuming this story may be of some interest to those here. I am not expressing any point of view. Just forwarding what I think is interesting. Cheers, Mark http://www.wired.com/threatlevel/2010/06/ascap-assails-free-culture-digital…

14 years, 8 months

Cakewalk (Edirol) UM-1G midi interface advanced mode

by Fritz Meissner

I'm thinking of getting a Cakewalk UM-1G midi-USB interface; as far as I can find, it should work fine with Linux (Ubuntu Studio) in standard mode. It also has an advanced mode which is claimed to reduce latency (with Windows), and my question is whether this is supported/useful under Linux. Anybody know if it makes a significant difference ? Fritz

14 years, 8 months

The rest of midi tracks follow the leading track

by Joan Quintana

I want to implement an idea. In stead of playing along with my wind midi controller the leading track with the rest of midi tracks (being slave of the midi tempo), I would to program another way to play a midi file: playing the lead track generate all the events of the rest of the tracks. In this case the concept of the tempo changes, and need to be calculated continuously to trigger the events. With this idea I will be free to play the melody, and feel how the orchestra (the other tracks) follow me, and not me following the orchestra (play along). Is this a crazy idea? Could be feasible to program? Exist already something similar? I downloaded the source code of the pmidi project (a CLI midi player). Is this a good starting point to implement the job? (sorry, I realise that may be a LAD post is better than a LAU post) Thanks in advance, Joan Quintana

14 years, 8 months

Reverb to use with LinuxSampler/piano?

by Jonathan E. Brickman

I am looking for a good reverb to add just a hint of reverb to LinuxSampler with a piano sampler, to turn my rig into a good overall acoustic piano simulator. I just tried Jack Rack, but the two included reverbs didn't seem made for me at all. Suggestions anyone? J.E.B.

14 years, 8 months

Combining two stereo devices on one card into one four-channel device (M-Audio FastTrack Pro)

by David Balch

Hi, I have an M-Audio FastTrack pro (http://www.m-audio.com/products/en_us/FastTrackPro.html), which presents its four playback channels as two devices (hw:1,0 + hw:1,1). I want to combine the two devices into one, so I can use all channels in Jack - but I'm struggling to get it working or even be sure that I understand .asoundrc Amongst other things, I have tried using the config from http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg23839.html, but it doesn't work: $ aplay -vv -Dftpro:1,0 test.wav ALSA lib conf.c:4612:(snd_config_expand) Load defaults error: File exists ALSA lib pcm.c:2211:(snd_pcm_open_noupdate) Unknown PCM ftpro:1,0 aplay: main:608: audio open error: File exists Full alsa-info.sh output: http://www.alsa-project.org/db/?f=0fc7694be834a5bcaba51317a0660de22911a02f Another .asoundrc I've tried: ----8<---- pcm.fasttrackmulti { type multi slaves.a.pcm "hw:1,0"; slaves.a.channels 2 slaves.b.pcm "hw:1,1"; slaves.b.channels 2 # First 2 channels of first soundcard (playback) bindings.0.slave a bindings.0.channel 0 bindings.1.slave a bindings.1.channel 1 # First 2 channels of second soundcard (playback) bindings.2.slave b bindings.2.channel 0 bindings.3.slave b bindings.3.channel 1 } ctl.fasttrackmulti { type hw card 2 } ----8<---- There is never any sign of the .asoundrc devices in aplay -l output. Any ideas how I can get it working? Thanks in advance for any help! Cheers, Dave -- http://www.witchesband.com/

14 years, 8 months

Re: [LAU] JACK: more on inputs and outputs

by Arnold Krille

On Monday 19 July 2010 11:28:35 Andrew Bryant wrote: > On 19/07/10 08:33, Arnold Krille wrote: > > On Monday 19 July 2010 08:57:45 Andrew Bryant wrote: > >> I think this must be a quirk of the hardware: onboard Intel > > Look at alsamixer(gui), did you select the line-jack for recording? > > These cheap chips have only a stereo-input. What you record with them is > > selected via the mixer. > Ah, now I understand. After a lifetime of analogue mixers I find > soundcards a bit, let's say, unusual. Think of the soundcards (analogue!) mixer as two mixers: one for playback and one for recording. One snitch with the recording-mixer: while several level controls for the various sources exist, most soundcards select one source and only record from that one. So its less like a mixer and more ĺike a patchbay with gain-control. Have fun, Arnold

14 years, 8 months

Re: [LAU] Linux-audio-user Digest, Vol 41, Issue 32

by David Balch

[From digest] On 17 July 2010 13:00, <linux-audio-user-request(a)lists.linuxaudio.org> wrote: > From: Patrick Shirkey <pshirkey(a)boosthardware.com> > Subject: Re: [LAU] Combining two stereo devices on one card into one > four-channel device (M-Audio FastTrack Pro) >> >> On Fri, Jul 16, 2010 at 11:27:57PM +0200, Florian Faber wrote: >> >>> On 07/16/10 23:22, David Balch wrote: >>> >>>> Any ideas how I can get it working? Thanks in advance for any help! >>>> >>> This all futile unless you can sync the word clock on both devices. >>> Happy soldering! At this stage I just want one stereo out for speakers and the other for headphones, to use with mixxx [http://www.mixxx.org/], so I was hoping that exact sync wouldn't be necessary. >> Are you certain the word clocks are separate, even tho both >> devices appear on a single card? > > Maudio do/have done this on some devices for some reason. I haven't come > across any other manufacturers who do it. The clocks are synced but the > setup in alsa is a pita. A bit of searching didn't find anything definitive, but I found a post that seems to imply that the http://forums.m-audio.com/archive/index.php/t-7497.html clocks are synced. > I have also noticed that previously tested and confirmed working > .asoundrc scripts don't work as expected. This started happening > sometime in the past couple of years. I'm not sure what has changed but > this stuff was sorted out several years ago and now it seems to be > broken again in that it is not just a case of copy and paste according > to the instructions that were painstakingly created all those years ago. > > Either it's something to do with the location of the .asoundrc or it is > a change to the way the pcm.multi setup is now handled. > > The result is that someone has to figure out what has changed and update > all the old scripts with the new details. Definitely a pita. Possibly not so much of a problem for those who've been using ALSA for a while, but when it's a struggle for someone used to a bit of tinkering, there's no chance for those who just want to plug in and get on with it :-( I got zero response to this on alsa-user list, so I guess I'll try alsa-devel... Thanks for your input! Cheers, Dave. > -- > Patrick Shirkey > Boost Hardware Ltd > > > > ------------------------------ > > Message: 6 > Date: Sat, 17 Jul 2010 01:05:17 +0200 > From: fons(a)kokkinizita.net > Subject: Re: [LAU] Wired... wires confused! > To: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <20100716230517.GA4128@zita2> > Content-Type: text/plain; charset=utf-8 > > On Thu, Jul 15, 2010 at 01:16:27PM +0200, Natanael Olaiz wrote: > >> El 07/15/2010 01:14 PM, Florian Faber escribi?: > >> > On 07/15/10 13:06, Natanael Olaiz wrote: >> > >> >> El 07/15/2010 11:01 AM, fons(a)kokkinizita.net escribi?: >> >> >> >>> Qtractor looks at least 30 dB better to me, as does Renoise. >> >> >> >> The sense of taste is logarithmic?? :-))) >> > >> > You can express the relation between any two numbers in dB. >> >> Yes, logarithmically. > > It just means '1000 times more'. Since large ratios are > involved rather than small differences, it makes sense > to use dB. > > As Flo has pointed out, you can use dB wherever ratios > are involved. Back in my Alcatel days I got emails from > my boss (a very fine engineer turned manager) like this: > > 'I've seen your planning for project xyz. You're going > over budget by more than 1 dB. I can allow 0.414, but > no more'. > > (0.414 dB = +10%) > > Ciao, > > -- > Je veux que la mort me trouve plantant mes choux, mais > nonchalant d?elle, et encore plus de mon jardin imparfait. > (Michel de Montaigne) > > > ------------------------------ > > Message: 7 > Date: Fri, 16 Jul 2010 16:30:44 -0700 > From: Mark Knecht <markknecht(a)gmail.com> > Subject: Re: [LAU] So long, and thanks for all the fish. > To: Gordon JC Pearce <gordonjcp(a)gjcp.net> > Cc: linux-audio-user(a)lists.linuxaudio.org > Message-ID: > <AANLkTinY49SyRUNDbmheb-zKirEcmpXpDtEKHT4u4Den(a)mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > On Fri, Jul 16, 2010 at 12:29 PM, Gordon JC Pearce <gordonjcp(a)gjcp.net> wrote: >> Since the list has turned exclusively into Linux Audio Armchair Lawyer >> ASCAP Discussion list, I don't really see much point in hanging about. >> >> Gordon MM0YEQ > > It'll stop soon enough. It's not a good reason to leave. Just ignore us! :-) > > Cheers, > Mark > > > ------------------------------ > > Message: 8 > Date: Fri, 16 Jul 2010 20:29:12 -0700 > From: Ken Restivo <ken(a)restivo.org> > Subject: Re: [LAU] Wired... wires confused! > To: fons(a)kokkinizita.net > Cc: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <20100717032912.GA3760(a)aieee.restivo.org> > Content-Type: text/plain; charset=us-ascii > > On Thu, Jul 15, 2010 at 11:01:49AM +0200, fons(a)kokkinizita.net wrote: >> On Thu, Jul 15, 2010 at 09:25:32AM +0100, James Stone wrote: >> >> > I think you hit the nail on the head - the graphics are really nice on >> > wired - unlike most of the other linux apps (with possible exception >> > of bristol, renoise etc.) >> >> /me looks. ? ?? ??? IMHO it looks 'cheap plastic', and surely >> not as any piece of HW I'd trust. Lots of ugly and completely >> disfunctionalo eye candy. >> >> Qtractor looks at least 30 dB better to me, as does Renoise. >> > > I have to wonder, if you use Logic and Reason, does that make your music smarter? > > /me ducks > > -ken > > > ------------------------------ > > Message: 9 > Date: Fri, 16 Jul 2010 20:34:49 -0700 > From: Ken Restivo <ken(a)restivo.org> > Subject: Re: [LAU] MIDI over serial port > To: Clemens Ladisch <clemens(a)ladisch.de> > Cc: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <20100717033449.GC3760(a)aieee.restivo.org> > Content-Type: text/plain; charset=us-ascii > > On Fri, Jul 16, 2010 at 03:03:04PM +0200, Clemens Ladisch wrote: >> Dominic Sacr?? wrote: >> > On Wednesday 14 July 2010 08:01:36 Clemens Ladisch wrote: >> > > > snd-serialmidi >> > > >> > > That module is part of the alsa-driver package. >> > >> > Is this module of any use for what I'm trying to do? >> >> It is supposed to do exactly what you want. >> >> > Why doesn't it get built by "./configure --with-cards=serialmidi && make"? >> >> in drivers/Kconfig: >> | config SND_SERIALMIDI >> | tristate "Generic driver for serial MIDI adapters" >> | depends on BROKEN >> >> You could try to remove this dependency, but I'd guess this is there for >> a reason and that this driver will not work. >> >> > > In theory, it would be possible to write a userspace daemon that >> > > connects any serial port to the ALSA sequencer. >> > >> > I guess I could do that. >> >> I'm doing this; wait for Monday. >> >> > > There already is one. I have it, somewhere, probably on a disk on a machine that I don't have powered on at the moment. > > I don't remember the name of it, sorry. It was a very simple one-file daemon in C which compiled and ran on Linux. I was using it to do MIDI communication to an Arduino some years ago. > > -ken > > > ------------------------------ > > Message: 10 > Date: Fri, 16 Jul 2010 20:37:04 -0700 > From: Ken Restivo <ken(a)restivo.org> > Subject: Re: [LAU] Reverb to use with LinuxSampler/piano? > To: "Jonathan E. Brickman" <jeb(a)joshuacorps.org> > Cc: Linux-audio-user <Linux-audio-user(a)lists.linuxaudio.org> > Message-ID: <20100717033704.GD3760(a)aieee.restivo.org> > Content-Type: text/plain; charset=us-ascii > > On Tue, Jul 13, 2010 at 07:14:38PM -0500, Jonathan E. Brickman wrote: >> I never found a really good piano .SF2; this is why I set up >> LinuxSampler. Right now I am using the one they provide on their web >> site, and it's pretty good, but when I get the $ I'm going to try to >> find a Bosendorfer .gig I read about a while back. I have always wanted >> to play a Bosendorfer since I heard of them, and the .gig I heard of was >> $40, I was told it is excellent. >> >> J.E.B. >> >> On Mon, 2010-07-12 at 11:34 -0300, Bernardo Barros wrote: >> > Hey Jonathan, >> > >> > What piano soundfont did you find the best? I'm looking for a really >> > good one here. >> >> > > For years I used a Steinway soundfont that was $5 on the internets. Worked well, sounded well. > > Lately I use the Old Lady Gigasample in LinuxSampler for recording purposes. > > Live I use a very simple piano soundfont lifted from a PC52 or some such General Midi soundfont, because it is lightweight and doesn't use up too much CPU on my EEE, and also because it cuts through the mix with almost headache-inducing force. > > -ken > > > ------------------------------ > > Message: 11 > Date: Sat, 17 Jul 2010 11:43:54 +0400 > From: Louigi Verona <louigi.verona(a)gmail.com> > Subject: Re: [LAU] So long, and thanks for all the fish. > To: Mark Knecht <markknecht(a)gmail.com> > Cc: linux-audio-user(a)lists.linuxaudio.org > Message-ID: > <AANLkTinnFhi8ifnUzX6GjKpfgJW_RUrctF4Yo542lWdy(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > On Sat, Jul 17, 2010 at 3:30 AM, Mark Knecht <markknecht(a)gmail.com> wrote: > >> On Fri, Jul 16, 2010 at 12:29 PM, Gordon JC Pearce <gordonjcp(a)gjcp.net> >> wrote: >> > Since the list has turned exclusively into Linux Audio Armchair Lawyer >> > ASCAP Discussion list, I don't really see much point in hanging about. >> > >> > Gordon MM0YEQ >> >> It'll stop soon enough. It's not a good reason to leave. Just ignore us! >> :-) >> >> Cheers, >> Mark >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user(a)lists.linuxaudio.org >> http://lists.linuxaudio.org/listinfo/linux-audio-user >> > > > > Not that copyright discussions are something rare in any mailing lists > anyway. > One of the hottest topics nowadays. > > > -- > Louigi Verona > http://www.louigiverona.ru/ >

14 years, 8 months

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Linux-audio-user July 2010