Linux-audio-user January 2005

linux-audio-user@lists.linuxaudio.org

207 participants
246 discussions

[linux-audio-user] Re: linux-audio-user Digest, Vol 16, Issue 69

by Jon B

> It took me a while, but my midisport 2x2 is working fine in Linux (the > 1x1 should also work fine). Haven't given it the full works, so can't > comment on its latency... well usb is reputed to have bad latency in general > I guess the antialias filter starts rolling at around 20, and uses all > the extra bandwith to avoid making the filter steeper and messing the > 'audible' audio. Just a guess. I would guess most music recording > interfaces do this. Ah.. just saving a few cents on parts. but they can usually handle lower sampling frequencies as well... regardless, this is something we can test.

20 years, 2 months

[linux-audio-user] Re: JACK timemachine and W64 file format

by Jon B

> No WAV can also contain 32 bit float, but you hit the 2Gig limit > pretty quickly. Ah, I see. > sndfile-play (comes with libsndfile can play them) and any program > which uses libsndfile (Sweep, audacity, ardour, ecasound etc) can > read them. ok. > Sorry, does what? records 32-bit. you already answered. > Look at sndfile-convert (also part of libsndfile). ok. SoX doesn't use that lib? > Every soundformat can clip, the reason is not within soundformats but within > the analog-digital-converters. Well of course. But put that unclipped signal through some effects and it can get really large really fast. It would be nice to not have to worry about clipping internal to the computer also; constantly watching meters and lowering levels and re-recording parts that clipped...

20 years, 2 months

[linux-audio-user] XRUN/XRUN callback

by Andres Cabrera

Hi all, I'm wondering if anyone can explain the difference between an XRUN, and an XRUN callback. Is an XRUN callback not a matter of great concern? (It seems to me from reports in the qjackctl message window that no time is actually lost). On my system at 11ms latency i get an XRUN callback every 30 minutes or so and a true XRUN when something happens (open a jack application, for instance). Cheers, Andres

20 years, 2 months

Re: [linux-audio-user] What is the best choice for a pro PCI soundcard?

by Sampo Savolainen

Quoting Mario Lang <mlang(a)delysid.org>: > would you suggest? Additionally, I couldn't find anything > which explained why the LT version is soo much cheaper. Is > this only about bundled software, or does the 1010lt version > have less hardware features than the Delta 1010? The M-Audio 1010 has a true breakout box. True in the sense that the A/D and D/A converters are in the breakout box. That means that they are subject to less interference and will work better (=quiet). The 1010LT just has a stack of cables attached to its backplate. Sampo

20 years, 2 months

[linux-audio-user] JACK timemachine and W64 file format

by Jon B

"Because some people wanted to record files that are longer than 2GB, if you're using 8 channels you hit that limit pretty quickly, but even for stereo its a problem." For some reason I was under the impression that W64 was used because it saved 32-bit floating point data and therefore didn't clip; not because of file size limits. Is this true? (I don't know of any programs I can play them in, anyway; I just save to WAVs.) Is there any format that does do this, that could then be normalized and reduced to regular WAV after the recording?

20 years, 2 months

[linux-audio-user] Audiophile 192

by Mark Constable

I checked the driver matrix at alsa-project.org but it does not specifically mention this card. Has anyone actually tried an Audiophile 192 and is it fully usable with ALSA ? http://www.m-audio.com/products/en_us/Audiophile192-focus.html --markc

20 years, 2 months

[linux-audio-user] Re: Audio interface recommendations (Jon B)

by JP Mercury

Dear Jon, > Sorry if this gets asked every five minutes. I'm looking for a > decent quality linux-supported interface for a laptop. Low latency > is important. Should I aim for USB or Firewire? (Or PCMCIA? Do > they even make those?) 24-bit is important. 48 kHz at least, but I > guess > 44.1 is acceptable. More than stereo in and out is kind of nice, > but not required. Compatibility is important. :-) For portable low cost low-latency performance, I can recommend Echo Audio's Indigo IO (PCMCIA). Giuliano Pochini has written a fabulous set of ALSA drivers for Echo's cards. They deliver real-time performance at 96kHz, 24 bit down to 32 samples. I am running the 2-in 2-out Indigo IO on an Averatec 3250 laptop, and together they make for a great mobile audio rig. If you need more ins-and-outs, you might want to try the CardBus versions of Layla/Darla/Gina, which reportedly also work with Giuliano's drivers. Another promising project is FreeBob, an attempt to integrate ALSA support for some FireWire based audio interfaces. As far as I know it's still in planning phase, but here's a link: http://freebob.sourceforge.net/ USB works well, but most people have to really coax it to get it working with lower latencies. That may change with USB 2.0 support coming for new cards, but I'd hold off for now. Good Luck, Mercury

20 years, 2 months

[linux-audio-user] Audio interface recommendations

by Jon B

Sorry if this gets asked every five minutes. I'm looking for a decent quality linux-supported interface for a laptop. Low latency is important. Should I aim for USB or Firewire? (Or PCMCIA? Do they even make those?) 24-bit is important. 48 kHz at least, but I guess 44.1 is acceptable. More than stereo in and out is kind of nice, but not required. Compatibility is important. :-) Alternatively, point me to information elsewhere. The problem is that anything I can find online is from 2+ years ago. Alternatively, please help fill in this list, especially ones you have personal experience with, so people don't have to ask: http://alsa.opensrc.org/index.php?page=Alsa+Preferred+Soundcards Jon

20 years, 2 months

Re: [linux-audio-user] recommended music

by Eric Steinberg

Ultimate Spinach! Guru Guru! Amon Duul (1,2,3....)! The Chocolate Watch Band! THE BEACH BOYS!!!!!!!!! The United States of America! The United States of Existence! The Nice! Tomorrow! Remember "SF Sorrow is Born"? Or "Lemon Princess"? Lemon Jelly! Wilco! Rip Rig & Panic! Blind Lemon Jefferson! THE ROLLING STONES, MAAAAAAANNNNN!!!!!!!! The Tubes! DEVO!!!! Flash & the Pan! Tonio K (remember "Trouble"?)! Concrete Blonde! Lush! Cocteau Twins! Durutti Column! STOCKHAUSEN! Alice & the Bags! X! The Bus Boys! KOOL & THE GANG! D.O.A.! Talking Heads! The Last Poets! Ken Nordine! G.B.H.! Exploited! Living Colour! wot elz?..... -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

20 years, 2 months

Re: [linux-audio-user] recommended music

by Eric Steinberg

Yeah! YEAH!!! And, Henry Cow, John Zorn and everyone associated with him (which seems like just about everyone in New York), Shonen Knife, Iannis Xenakis, The Knickerbockers (only British Invasion band to come close to the Beatles, with their song "Lies"), Consolidated, P-Funk (all of it, including ParLet), XTC, Crack EmCee (check his album Rap's Creation), The Dead Kennedys, The Dead Kenny G's, Ramones, Black Flag, Material, Tony Williams, John McLaughlin, Son House, D'Gary, David Lindley, CSNY, Battles, Faust, Can, Kraftwerk, James Blood Ulmer, Sonny Sharrock, Henry Threadgill. But no Led Zeppelin please! ----- Original Message ----- From: "Pasi Karppinen" <pasi.karppinen(a)pp6.inet.fi> To: "A list for linux audio users" <linux-audio-user(a)music.columbia.edu> Subject: Re: [linux-audio-user] recommended music Date: Wed, 12 Jan 2005 18:42:50 +0200 > > I like many, many styles of music. From blues to rockabilly, from pop to > modern rock'n'roll, from jazz to classical music. From inexperienced > indie artists to veteran artists who master their instruments. > > You just got to have a feel in it and I'll like it. To me it's not about > the ability to play the instrument perfectly or fast - you can have a > lot of emotion and feel in it even if you're an average player. It's got > to come from soul. > > Favourite artists: Elvis, The Beatles, U2, Oasis, Depeche Mode, Bruce > Springsteen, Brian Setzer. > > > > On Wed, 2005-01-12 at 10:29 -0600, Jan Depner wrote: > > I'm a bit off-center in what I like: > > > > Frank Zappa (of course), Gabor Szabo, Jean Luc Ponty, Dan Hicks and His > > Hot Licks (who could forget How Can I Miss You When You Won't Go Away :) > > JJ Cale, Ry Cooder, Danny Gatton, Albert Lee, Robert Pete Williams, Son > > Thomas, RL Burnside. One of the nice things about living near New > > Orleans - The Jazz and Heritage Festival (especially the Gospel Tent). > > > > Jan > > > > On Wed, 2005-01-12 at 06:10, luis jure wrote: > > > el Tue, 11 Jan 2005 07:45:36 -0500 > > > Dave Phillips <dlphilp(a)bright.net> escribió: > > > > > > I'm not much into pop stuff anymore, so my > > recommendations are a bit > > different: > > > > as i half expected, dave's recommendations superpose in about 85% with > > > mine... > > > > > > just about anything by Miles Davis, Sonny Rollins, > > Jelly Roll > > Morton, Duke Ellington, Charles Mingus, Thelonius > > Monk, Charlie Parker... > > > > ditto. and i would add at least lester young, coleman > > hawkins, count basie > > > and eric dolphy. > > > > > > Pony Blues, Down The Dirt Road, and High Water > > Everywhere, by > > Charlie Patton > > > > (real blues) > > > > ditto. and may i also suggest son house? imo the greatest, > > his dead letter > > > blues is impressive. > > > > anything by Howlin' Wolf, > > Skip James, Robert Johnson, Muddy Waters, > > JB Lenoir, Magic > > Sam... > > > > (more real blues) > > > > ditto, but i'd like to add two of my favourites: lightnin' hopkins and > > > elmore james. hopkins is a bit uneven, but when he comes to > > real folk blues, > > > he definitely was one of the greatest exponents of texas blues. his > > > Smithsonian/Folkways record is a classic. and elmore james is, of course, > > > the slide guitar master, listen to his blues before sunrise, > > and you'll feel > > > sorry if you ever listen to the cover by eric clapton... > > > > but since this is the lau mailing list after all, what about > > computer music? > > > a few of my recommendations: > > > > iannis xenakis: la legende d'eer (btw, just about anything by xenakis, > > > instrumental or electronic) > > > charles dodge: any resemblance is purely coincidental > > > paul lansky: six fantasies on a poem by thomas campion > > > john chowning: stria and phoné > > > barry truax: arras > > > > that's the music that made me mess with computers (and with linux) in the > > > first place... > > > > best, > > > > lj > > > > > > -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

20 years, 2 months

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Linux-audio-user January 2005