Linux-audio-user

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11 participants
20636 discussions

by Joshua Haberman

This is a little off-topic, but I hope you don't mind. I get quite a lot of noise from my soundcard. There is a pulsing that sounds something like a very fast morse code at a consistent pitch, and it's unacceptably loud. I notice variations in this noise based on how I move my mouse. At first I thought this was just because of my shoddy 5-year-old Soundblaster Live, but I have a new Audiophile 2496 and it does the same thing. Today I tried removing the stereo mini plug from my soundcard and touching it to the metal on my case. The sound was nearly identical. >From the little that I know about electronics, I conclude that the problem is voltage fluctuations in the metal of the case. Does this mean my case needs to be grounded somehow? What can I do to fix this problem? Josh

21 years, 9 months

RE: [linux-audio-user] noise from soundcard

by Reuben Martin

>> I suggest that you take your electricity for the computer and amplifier >> and all that get's physically connected to them from one grounded outlet. >> And beware if you have antennas connected to the system, they give ground >> loop humming also. > >I tried putting everything on the same power strip and I still get the >noise. I have a mixer and an amplifier that the signal is going >through, and I get the same noise going: Just because you are plugged into a three prong outlet doesn't mean it's grounded. Sometimes when electrical outlets are wired, the ground connection isn't actually grounded and is useless. Sometimes power strips have a little light on it to show if it is actually grounded or not. Also, cheap power conditioners can help alot. (Rack Rider for instance)

21 years, 9 months

Re: [linux-audio-user] That whole mp3 vs. ogg vs. wma vs. yomamma thing

by ricktaylor＠speakeasy.net

Self, > From: Mark Knecht [mailto:mknecht@controlnet.com] > > > > Sorry. Not clear. I listen a lot to jazz fusion, like John > > Scofield or John > > > McLaughlin, or then a lot of prog rock stuff like Spock's Beard or > > > > Sorry. > > You're sorry I listen to Spock's Beard? ;-) > (Sometimes I am. I'm such a dinosaur...) :} I'm not much on fusion... McLaughlin's alright. Most of it just strikes me as too dense, overly complex ...somewhat masturbatory on the part of the artist. It's not always bad... some folk do it well. To tell you the truth... I've not actually heard Spocks Beard. > > Are you seeing "legacy" as bad? ...Somehow limiting? > > No, not at all. Sometimes I think the way folk today constantly reference {borrow from} the past is a bit detrimental. ...Keeps them stuck in the past. I always figured the past was something to be learned from and left behind. > > I tend to wonder why folk reference past movements that way. > > {Like Billy Ray Cyrus, or whoever happens to be todays twang pop > > superstar, calling themselves a "country" singer or whatever...} > > I don't know, but this sort of issue is out there all over the place. Not > just in music. (Look at the media today with the labels 'left' and 'right') > People here in the U.S. seem interested, or at least comfortable, aligning > themselves with names of things, and far less interested or comfortable at > just looking or listening and deciding how they feel about someone's work. I wonder why folk want to live within labels. Labels are so you can organize you cd collection. Not that I've not adopted a few myself. It's just that... take country, for instance... why do artists tend to drag that whole thing out rather than taking it upon themselves to deviate from it as much as the folk who made "country" {the core folk} managed to deviate from what was around at the time? Why are they content with simply mimicking the earlier or defining aspects of whatever movement? Do they actually think that country or metal or punk or whatever else came about that way? Back to your point... I like lots of different movements... I may borrow from lots of different movements... no way in hell I'd ever create within or for a specific movement. Why do people do this? > > > I hope this helps explain my point of view a bit, even if it is out of > > > touch. > > > > :} Not really... > > Not really explaining my point of view, or not really out of touch? ;-) Your point of view could have used a bit of clarification. > > These days I think it might be the ideations of > > the producer that matters. It would seem that some sort of late > > seventies nostalgia has grasped us by the sensibilities in the > > past few years. > > Interesting observation. Not sure I agree, but certainly worth some thought. Technophiles and disco kiddies... :} they're all around us. > > Maybe it's a pre-revolutionary sphincter convulsion sort of > > thing... maybe it's the result of some secretive neo-conservative > > underground... who knows? > > > > Not exactly a Bush-Chaney support I'd guess. ;-) Not exactly. I don't really have a problem with Bush... He's not done all that badly given what he's had to deal with. I think he's gotten a bit hawkish of late. I wouldn't rule out voting for him.

21 years, 9 months

[linux-audio-user] Copyrights on samples

by Atte André Jensen

Hi Does anyone know if it's legal to: * sample the grandpiano of the latest Roland/Korg/Yamaha electric piano * give the sample away * package it (sf2) and put it on my web site -- peace, love & harmony Atte

21 years, 9 months

[linux-audio-user] OSS Emulation and .asoundrc files

by Mark Knecht

Hi, I'm not clear if this is possible at all. Can someone explain how I might make a .asoundrc file that would only allow applications that use OSS emulation to access specific playback channels. Currently any app that uses OSS emulation drives all 26 playback channels on my HDSP 9652. This causes two problems: 1) Since my hardware mixes the 26 inputs into 2 stereo output pairs, the output over-drives if the 26 inputs are loud. 2) Any app using OSS emulation blocks all other apps using OSS emulation. What would be great, if it can be done, is to create a sort of 'virtual OSS' device in .asoundrc that only drove specific Alsa playback channels, so that Mozilla, for instance, talked to a specific entry in .asoundrc and ended up only driving two specific playback channels, like playback_22 and playback_23. I would be willing to live with a requirement that all OSS apps had to use the same sampling rate or blocking would occur. That's not an issue for me. Is anything like this possible with Alsa? Thanks, Mark

21 years, 9 months

[linux-audio-user] Make a .GIG out of the MIS piano Was: Re: Copyrights on samples

by Benno Senoner

The free sampled piano is here: http://theremin.music.uiowa.edu/MIS.html (click on the Piano link) It is quite large, abot 1.5GB (each note sampled individually in 3 velocities: pp, mf, ff). I do not know how good the quality of this piano is, Steve Harris hacked together a small player and posted some mp3s that were rendered from a MIDI file driving his application. To me it does not sound that great, perhaps you need to tune the velocity splits to make it sound well. Anyway this sampleset is really large and can hardly fit into RAM. SF2 was not created to be streamed from disk thus I suggest the following. We of the linuxsampler team made significant progress in .GIG playback thanks to the wonderful work done by Christian S. He actually wrote libgig which is able to parse and load .GIG file supporting all the articulation stuff (layering, key/velocity switching, dimensions etc). see our new webpage (thanks Marek ;-) ) http://www.linuxsampler.org (the new code is not online yet, because Christian and I are fixing bugs and optimizing the streaming). I cannot make forecasts when full GIG playback will be done, but shortly (1-2 weeks) we will release a version that can play back the samples (without effects, and envelopes for now). This means we will soon be able to play the MIS piano directly streamed from disk using LinuxSampler. So the advice to Atti and others is: One of you should use a Windows app which allows you to create .GIG files (with GigaStudio being the natural choice), download the MIS samples, tune volume, velocity-splits, trim samples (some samples have a bit of silence at the beginning etc) and make a .GIG file out of it. After the piano sounds good in GigaStudio you should post it online. That way as soon as LinuxSampler is ready (the piano sample does not require filters, envelopes etc) we can release a truly free Grandpiano in software (samples + player). To compare how well the MIS piano .GIG you will create ,sounds I suggest you to use this page: http://www.af.lu.se/~fogwall/piano.html On that page you find a classical music midi file Fantaisie-Impromptu (Chopin) and the corresponding audio clips rendered with various digital pianos, hardware expanders and software samples (including VST The Grand, various multi-Gigabyte piano samples for Gigasampler etc). Not sure about the quality we can achieve, for example the MIS piano does not include pedal down samples. IANAPP (I am not a piano player) so I do not know if this is a big disadvantage that makes it sound unprofessional. Worth a try anyway. What do you think ? cheers, Benno >> * sample the grandpiano of the latest Roland/Korg/Yamaha electric >piano >> * give the sample away >> * package it (sf2) and put it on my web site >> > if you are prepared to go through all the pain of trimming and looping > zillions of samples, why not do the real thing ? > there is a raw set of steinway grand samples floating around on the net > somewhere (was even announced to this list iirc), and i think it's even > an anechoic recording. > the license was something along the lines of "free for the taking".

21 years, 9 months

[linux-audio-user] pics from the expo

by Chris Cannam

Some photos from the Rosegarden camera at the 2003 Linux Expo in London these last couple of days. There are only a handful and they're not the most exciting, but hey: http://www.all-day-breakfast.com/rosegarden/expo-2003-pics.html Chris

21 years, 9 months

AW: [linux-audio-user] ogg player for Windows?

by Joachim Backhaus

Hi, isn't this a linux list? ;-) Try Winamp 2.x, the newer versions have included ogg support and there is a plug-in for the older verions. Winamp 3.x is crap. Regards, Joachim -----Ursprüngliche Nachricht----- Von: Mark Knecht [mailto:mknecht@controlnet.com] Gesendet: Donnerstag, 9. Oktober 2003 16:07 An: Linux-Audio-User Betreff: [linux-audio-user] ogg player for Windows? Hi, Windows Media Player doesn't handle ogg files. Is there a Windows app that would allow my to listen to ogg files? (That other hijacked thread has an ogg link, but I couldn't bear to hijack the thread in yet another direction!) ;-) Thanks, Mark

21 years, 9 months

[linux-audio-user] BruteFIR with AudioPhile 2496

by Benjamin Flaming

I'm trying to get BruteFIR operating in realtime on my 2496. Currently, however, it fails with the following output: ALSA I/O: Could not set audio input parameters for "maudio": Failed to set channel count to 2: Invalid argument. Failed to init input device. Failed to initialise digital audio interfaces. I get the same message regardless of whether I use the "maudio" pcm defined in my .asoundrc, or "hw", or "hw:0". I've tried setting channels to 8/0,1 on input, 10/0,1 on output, also with no effect. My input and output settings for BruteFIR are as follows: input "left input", "right input" { device: "alsa" { param: "maudio"; }; sample: "S32_LE"; channels: 2; }; output "left output", "right output" { device: "alsa" { param: "maudio"; }; sample: "S32_LE"; channels: 2; }; And my .asoundrc looks like this: pcm.maudio { type hw; card 0; device 0; } ctl.maudio { type hw; card 0; } pcm.spdif_cap { type plug; ttable.0.8 1; ttable.1.9 1; slave.pcm { type hw; card 0; device 0; } } I'm running the 2.6.0-test5 kernel, and therefore using the ALSA version included. I'd welcome any suggestions :) |) |)enji

21 years, 9 months

Re: [linux-audio-user] That whole mp3 vs. ogg vs. wma vs. yomamma thing

by ricktaylor＠speakeasy.net

> From: Mark Knecht [mailto:mknecht@controlnet.com] > > > > >> We have that whole rock/blues and jazz legacy to deal with as well {as > > >opposed> to the watered down, imitative stuff that comes from > > that side of the > > >pond.} The> American public has come to value things like depth > > and quality and > > >a certain> "earthiness" that you just don't get with "Eurodisco." > > > > > >This statement in a week when the Top 10, for the first time in History, > > >was completely comprised of all Black artists. Yes, our charts, and > > >apparently our brethren, have gone a different direction. > > > > I'm not quite sure what this means. > > > > >> {Tho' you really couldn't tell it by looking at our charts. ... A few > > >minutes> on the streets or in some of our backwoods clubs would > > convince you.} > > Sorry. Not clear. I listen a lot to jazz fusion, like John Scofield or John > McLaughlin, or then a lot of prog rock stuff like Spock's Beard or Sorry. > Conspiracy. None of this is represented on the radio today, really. (In > reference to your "that whole rock/blues and jazz legacy" comment, which I > agree with.) I meant "core" stuff... like old-school jazz, blues, country... "real" rock ...even classical. Are you seeing "legacy" as bad? ...Somehow limiting? > My unintelligible comment about black artists was only that this week > everything on the radio is hip hop, rap or what passes taday as R&B, even > though I have a hard time equatig Beyonce Knowles, no matter how good > looking or talented she is, with R&B. Nothing on commercially driven radio > around her has anythign to do with, again, "that whole rock/blues and jazz > legacy". :} Not at all. I haven't believed the label "R&B" since around the end of the original Motown sound. I tend to wonder why folk reference past movements that way. {Like Billy Ray Cyrus, or whoever happens to be todays twang pop superstar, calling themselves a "country" singer or whatever...} > I hope this helps explain my point of view a bit, even if it is out of > touch. :} Not really... These days I think it might be the ideations of the producer that matters. It would seem that some sort of late seventies nostalgia has grasped us by the sensibilities in the past few years. Maybe it's a pre-revolutionary sphincter convulsion sort of thing... maybe it's the result of some secretive neo-conservative underground... who knows?

21 years, 9 months

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Linux-audio-user