Linux-audio-user April 2007

linux-audio-user@lists.linuxaudio.org

171 participants
143 discussions

Re: [LAU] Questions from an audiophile to some engineers

by Bearcat M. Sandor

Gordon, Did i insult you personally or something? Your email is full of baseless assumptions about me and my experiances. Perhaps no offence was meant, but it reads that way. I have not purchased the system yet, and claiming that any component is "shit" is nothing short of rediculous. The Bel Canto Ref 1000s have been reciveing awards from various audio publications all year. More over *I* like them. I like the synergy between them and the Gallos. Your exeriances may vary and you are welcome to them. Again i may be talking about a different kind of compression, but It's not obvious that the rock stuff will be heavily compressed. My Nine Inch Nails, Tool, Porcupine Tree, Pink Floyd..etc is not compressed heavily. It's not that i care about the minor details of the sound its that i enjoy the presentatoin that well recorded music can give. The loss of sound staging is actually distracting on good speakers. When you go from one track with an expansive stage to one that sits in a small, flat hole between your speakers, you notice. It's not that i have "more money then sense." in fact these speakers are going to be quite a stretch for me and i like them much more then some pairs that i just heard tonight that cost 3 times as much. No i don't care about "solid gold speaker cables". I do care about quality equipment though, or rather equipment that i like the sound of. Bearcat On Thursday 12 April 2007 in an email titled "Re: [LAU] Questions from an audiophile to some engineers" Gordon JC Pearce wrote: >On Wed, 2007-04-11 at 10:34 -0600, Bearcat M. Sandor wrote: >> There is something that has been bothering me for a long time that i have >> never recieved a satisfactory answer to. I keep asking audiophile people >> like myself, and it only just occurred to me that i have this whole list >> of audio engineers here to pester..er..ask. >> >> Why is it that most of my CD's suck as far as recording quality? Now, >> don't bite me, i'm not talking about you folks. I know all of your >> recordings are awesome! *nods wisely* >> >> As i mentioned in another thread, i am in the process of purchasing an >> audio system: Gallo Accoustic Reference 3.1 speakers, Bel Canto ref 1000 >> mono bloc amps, and my computer+RME HDSP aes-32+ RME adi-8qs for the front >> end. > >Well, you've paid far too much for your equipment. Anything you listen >to will be coloured by your perception of how it should sound having >been filtered through thousands of dollars of expectation. > >Bel Canto amps are shit. I could chew up a handful of 2N3055s and 741s >and fart a better amp. > >> If i listen to a well regarded recording like Mile's Davis' "A Kind of >> Blue" the sound stage is spread out, the drums and piano have weight, and >> the cymbols have shimmer. >> >> Then when i put on one of my heavy metal or popular cds the sound stage >> colapses to a very smal area right between the speakers (live recording or >> not), the kick drums and piano sound almost wet and the cymbols are cut >> short. > >Well, obviously. The rock stuff will be heavily compressed compared to >the jazz CDs, leading to quieter sounds being clipped and cymbals >pumping wildly. > >> I have almost 700 cds now (ripped lossessly to my hard drive with flac). >> It occurred to me that once this system is in my house i'm gonna start >> playing the discs that are well recorded instead of all of it. That means >> that about two thirds of my music is gonna be not played so much. Sad. > >The saddest thing of all is that you care so much about minor details of >the sound and don't enjoy the music. > >> So, my question to you is what causes these bad recordings most of the >> time? Is it musicians who can't afford good producers and equipment? >> Are kick drums, ambiance and cymbols hard to capture? Is it compression >> to make things sound "louder"? Are they saving money by mixing for low-end >> systems figuring no one will care? > >No, it's whiny people with more money than sense, and an overdeveloped >sense of their own listening skills. > >No offence intended. I get sick of hearing similar rants. Next you're >going to tell us you're upgrading to solid gold power cables, or some >such. > >Gordon

18 years, 2 months

Free Music Instrument Tuner 0.97.0 released

by Gilles Degottex

Hi all, Here is a big new version with many changes, new features and fixes: - New algo: - faster, more robust, etc. - only one (optional !) parameter (and a little bit more intuitive) - fftw3 dependent - Add OSS support - Add Portaudio support (FMIT should be Win and Mac compatible with configure flags: --disable-jack --disable-alsa --disable-oss) - Filter frequencies out of range - Moved views in dB scales - Thick lines in graphs - A personal string for the packagers, visible in the about box - Discrete Fourier Transform module: dedicated to be more a pedagogic module than a usefull tool. - Configure panel review - And my favorite new feature: a donation button under the website ! - and so much I forgot ... I was busy for a very long time, so sorry to people I do not answer. Website: http://home.gna.org/fmit Download: http://download.gna.org/fmit Donation page: http://home.gna.org/fmit/donation.html Comments, remarks, test, bug reports and rotten tomatoes are all welcome. Have fun, Best Regards, Gilles PS. for packagers: could you send me your repository website, or something like this ? I'll reference them under the website. PS. for packagers: you can now use: ./configure --enable-packager-string="Jean-Michel de Lattre <mimi.lattre(a)jemlapet.com>" PS. for all: you know there is a new feature on the website: donate ! :P

18 years, 2 months

Routing Audio Around A Network

by Jim Eastman

Hey- A friend of mine is having some issues moving audio around a network. Me being not all that good at this stuff myself was at a loss as to how to help him. I was hoping somebody here may be able to offer some advice. Thanks! ---------- Forwarded message ---------- Date: Apr 9, 2007 6:58 PM Subject: Linux audio troubles. To: vitruvius(a)notacon.org I'm trying to move audio (from radios) between a desktop, which will be on the roof, and my laptop, which will be in the consuite. The idea is to take a signal coming in the desktop's mic jack and make it come out the laptop's speakers and vice versa. A while back, I got this pretty much working (there was a bit of lag) with something like bunsen@laptop# nc -l -p 4242 > /dev/dsp bunsen@desktop# nc -l -p 4243 > /dev/dsp bunsen@desktop# nc laptop.example.tld 4242 < /dev/dsp bunsen@laptop# nc desktop.example.tld 4243 < /dev/dsp That worked with my Thinkpad T41 and an old small form factor K6/2-450 desktop, both running Ubuntu. That desktop turned out to have some flaky hardware, so I switched to an old, normal-sized Duron 850 machine running Debian. Now when I try that, *wierd* shit happens. I had the two machines next to each other, network cards wired together. I ran those commands, and started making sounds into the laptop's microphone, while listening to headphones plugged into the desktop. I'd hear background noise, then a bit of whatever sound I'd recently made near the mic, looped a few times, then back to background noise. I dunno if this has something to do with configuration, drivers, hardware, or waving the dead chicken over the computer in the wrong pattern. If you know how to fix it, or know of a better way to move that sound across the network, I'd appreciate the advice. Bunsen

18 years, 2 months

[linux-audio-user] Mplayer JACK output in Ubuntu Edgy?

by Louis Acresti

I posted a topic about this on the Ubuntu user forums (http://www.ubuntuforums.org/showthread.php?p=2354233#post2354233), but I figured LAU was well-suited for this query as well: Lately I've been using an external USB synthesizer as my main soundcard in ubuntu (much better than my onboard) but a lot of apps I use don't support JACK, which is the only way (and the preferable way) to get audio output. The one app that I really wish worked with JACK (out of the box) was Mplayer. I really want JACK audio output with mplayer, but I don't want to compile mplayer myself. Does anyone know of a binary .deb of mplayer that contains support for JACK (ala mplayer -ao jack) ? I can't find any related topics about this; perhaps it's just me? I'm running Edgy: >>$ mplayer -ao help >>MPlayer 2:0.99+1.0pre8-0ubuntu8 (C) 2000-2006 MPlayer Team >>CPU: AMD Athlon(tm) (Family: 6, Model: 10, Stepping: 0) >>CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0 >>Compiled with runtime CPU detection. >> >> >>Available audio output drivers: >> mpegpes DVB audio output >> oss OSS/ioctl audio output >> alsa ALSA-0.9.x-1.x audio output >> arts aRts audio output >> esd EsounD audio output >> nas NAS audio output >> sdl SDLlib audio output >> null Null audio output >> pcm RAW PCM/WAVE file writer audio output Cheers, -louman

18 years, 2 months

MIDI or OSC?

by Ken Restivo

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm playing around with hacking together a custom softsynth. In this case I'm building it out of "pre-fab" parts using a HLL (ChucK), but I think I'd be asking this question regardless of the level at which I was doing this or the language I was using. My question is: should I use MIDI or OSC as the control interface? OSC seems a lot more flexible, and more modern, and I've already found a few things that would be much cleaner in OSC. But I'm worried about latency in going from MIDI to OSC, or any other gotchas that might be awaiting. Then again, this is 2007, and byte-oriented protocols are so 1980's, and maybe I'm over-worrying this. But, surveying the Linux softsynth landscape, I see OM/Ingen and LinuxSampler and maybe a few others using OSC as their control interface, and everything else using MIDI. And I have to wonder if there's a reason for that other than just history. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGHJZde8HF+6xeOIcRAg/HAJ96RRnzOa2WqOb2M9j7u5N6EN0QLACg0ILr 4n/Zhy62xnQNkgAOYGMsjXQ= =Eu0T -----END PGP SIGNATURE-----

18 years, 2 months

Help needed @ fortnightly workshops & summer festival, Reading UK

by Tom Chance

Hello, In February last year I started some faltering fortnightly arts workshops in Reading, UK, with six machines running Kubuntu Linux at the heart of the operation. The workshops were part of Remix Reading, a pioneering free culture project that aimed to bring the gospel of free culture and free software to the ordinary, non-geeky people of Reading. The workshops stalled because of a lack of time and money to get them going regularly. Well now the workshops are back and running regular as clockwork, being run by Remix Reading's successor - RAVE. They're current "analogue", in that the computers are dormant and they're based around media like good old fashioned instruments, graffiti and dance. They're being funded by income from parties and gigs so the money is no longer a worry. But I no longer live in Reading, and they need help with the Linux boxes! If you live near enough and could spare a Saturday or two to go in and fix them up, help them learn how to use Kubuntu and some audio production software, and get the networking sorted, RAVE and I would be eternally grateful! The next workshop is on Sat 21st April from midday, and every fortnight thereafter. The main work that would interest this list is setting the machines up with suitable software for music production, and helping the people there learn to use it. The workshop attendees are mostly local kids, including some from a refugee support group. The RAVE people are all sorts, but none of them have any Linux experience. Is anyone interested? Oh, and they're putting on a summer festival that Linux Audio could have a presence at: http://www.mosaicfestival.com Kind regards, Tom -- The struggle against power is the struggle of memory against forgetting - Kundera

18 years, 2 months

Jobs for Easter hollidy

by Folderol

Shopping - done Decorating - done (tell gf colours are OK) Forgotten shopping - done Sort out garden - done (tell gf colours are OK) Clean windows - done Clean house - done (tell gf colours are OK) Clean car - done Clean gf :) Forgotten shopp... - closed Sunday :( (tell gf colours are OK) Yay! Free time! music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music music - never done! http://www.musically.me.uk/music/Krazy_Shuffle.ogg http://www.musically.me.uk/music/Krazy_Shuffle.mp3 -- Will J G

18 years, 2 months

amidi ignores sysexes?

by Ken Restivo

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I sent this to the ALSA list but perhaps it was the wrong place. Haven't gotten any reply yet: http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg19410.html Any ideas from you kind folks, many of whom probably dump sysexes from your hardware synths and/or MIDI controllers on a regular basis? I've finally figured out how to configure my keyboard to control Ardour, ChucK, and freewheeling, and I'm eager to start creating elaborate custom presets and, of course, saving them to disk for backup purposes. Thanks! - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGHFTte8HF+6xeOIcRAuZCAJ9gxZ8Z1SsolblximEmRAxQWGe4oACg+zKp IID4ZyrRwmg3BMJqV1YcbD0= =1dSv -----END PGP SIGNATURE-----

18 years, 2 months

Mic for my acoustic guitar

by Bengt Gördén

Hi, I have a 9-string guitar (as a 12-string but only G-H-E have octave strings) that I would like to mount a mic on. I've heard that B-Band is ok. Anyone here that have done this that could give me some advise which mic is good or bad? regards, /bengan

18 years, 2 months

Rtlinux?

by David Baron

There is such a package on Debian. Description seems to imply that it takes any?? linux kernel/etc and runs it real-time preemptible. Maintained for instrumentation and lab/numerical control. Anyone ever played music?

18 years, 2 months

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Linux-audio-user April 2007