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20661 discussions

[linux-audio-user] All-Soft audio question

by Aaron Trumm

Hello all I would like to know if anyone knows how I would set up a fluxbox/gentoo system to stream 96khz wave files to multiple websites, remotely, without installing too much audio software or hardware - there isn't room for an actual machine, so I'm wondering if I can set up a computerless Linux system, ie: just software no, hardware, just gentoo, fluxbox, and the wave files, that I could hopefully control remotely from my laptop via wireless ethernet - but again, only wireless ethernet protocol software, not hardware - can't afford that hardware and Linux is open source so I figured if I did a totally soft system, had all my waves, and fluxbox and gentoo, and controlled it via my laptop, then I wouldn't have to buy more hardware and I wouldn't have to find space for the server, because the server would be hardwareless - this would make the applications machine independant too I guess, so I was thinking I might develope using my totally soft linux system, as well. Also I can't install fluxbox or gentoo because I want it to run quickly and quietly in the background, so just a kernel and no x window system, just a kernel EMULATING an x window system, again, remotely, via the All-Soft wireless network connection (All-Soft meaning only software, no hardware) Also, if I could also be pointed toward a way to encode my 96khz wave files at 92, 89, 43.2 and 5000.66 KhZ that would be great... Thanks!

21 years, 6 months

[linux-audio-user] Re: Fwd: [Jamin] Re: soft clip: Achieving Gain, inconsequential overloads

by davidrclark＠earthlink.net

Tim, > I don't think it's psycho-acoustics, distortion creates more harmonics, > that's physics CMIIW. "CMIIW" --- OK: While it is well-known that distortion creates more frequency components, in a classic experiment done in 1924 by Wegel and Lane [1], it was shown that due to the nonlinear processing done by the inner ear, additional tones could be heard provided that the intensity was loud enough. That there are psychophysical effects which result in "louder produces more harmonics" has long been established. If there are also other nonlinear effects beyond this (nonlinear processing by the brain), then there may also be psychoacoustic effects that result in "louder produces more harmonics." This is very likely, not nonexistent. -------------------- [1] R. Wegel and C. Lane. The auditory masking of one pure tone by another and its probable relation to the dynamics of the inner ear. In Physics Review, volume 23, pages 266-285. Cited in Curtis Roads, The Computer Music Tutorial, MIT, 1996.

21 years, 6 months

Re: [linux-audio-user] Fwd: [Jamin] Re: soft clip: Achieving Gain, inconsequential overloads

by davidrclark＠earthlink.net

Hey Mark, I don't think it's any accident that people who like distortion guitars also like them loud. So I think there's more to it that "I'm louder than you." But yes, there certainly seems to be some of what say there, unfortunately. It forces some of us to crunch our stuff more than we want to. Maybe we should "Just say 'No'?" :-)

21 years, 6 months

Re: [linux-audio-user] Fwd: [Jamin] Re: soft clip: Achieving Gain, inconsequential overloads

by davidrclark＠earthlink.net

Some speculation on the preference for loudness: I almost posted something on this previously, but decided not to. I suspect that the "loud is better" actually comes from a desire for denser spectra and that strategies for providing denser spectra have been thwarted by some people simply increasing the volume. Increasing the volume can produce the illusion of a denser spectrum be increasing the amplitude of some frequencies so that they can be heard, or it may simply cause more things in the room to rattle. But once you set the volume for the louder songs, those that actually have denser spectra may sound as though they don't because many frequencies fall below the threshold and/or don't rattle anything. They sound thin again. So people creating dense spectra ALSO need to increase the volume to keep up with the volume settings, sad to say. There may also be a psychoacoustic effect that louder produces more harmonics or an illusion of such. Two trends in the history of pop music that seem to support this denser spectra idea are 1) Electric guitars; 2) Wall of sound. Occasionally people back off from these, but the pop charts are full of songs with dense spectra. I don't know about others, but every time I hear a female solo voice, I am expecting to hear it followed by something with a dense spectrum such as power chords. There are those who, of course, do not like this and prefer purer tones, but even these people often prefer richer tones that have lots of harmonics, such as organs, over simple sinusoids. If you look at the development of any particular genre, you can also see (hear) an increasing spectral density. Often this is accomplished by simply adding more instruments.

21 years, 6 months

RE: [linux-audio-user] wav editor that does not require alsa

by Reuben Martin

> Just those in the TOC of a CD. If I got that right, I have to > just make > track1.wav, track2.wav, etc and then run cdrecord on all of > them to put > them onto a CD. (I'll ask in this list if that fails :) Like mik mentioned, you will probably want to used GCDMaster for creating the CD tracks. It supports features like allowing you to set track and indexing points without having to chop up the file into multiple files first. The real benifit from this is if you happen to be doing a live cd. GCDMaster uses a 74 frame/sec time code like CDs do. That allows you to set a track right on a frame so that you don't have padded tracks, or worse loud popping noises between tracks. Even if you're not doing a live CD, it's still very handy for audio CDs. -Reuben

21 years, 6 months

[linux-audio-user] install agnula demudi on the HD

by sigir

I've burned Agnula Demudi on a CD and put it in my laptop. It works like Knoppix, it seems, but I did'nt find any install. How can I install Demudi on the hard disk ? Thank you -- sigir

21 years, 6 months

[linux-audio-user] Rack-mountable external sound-card boxes.

by Luke Yelavich

Hi all I am wondering whether it is possible to remove the screw holes on either end of a studio rack-mountable soundcard box? Thanks Luke -- Luke Yelavich http://www.audioslack.com luke(a)audioslack.com

21 years, 6 months

[linux-audio-user] emi26 on ppc

by stefan kersten

hi, a variation on the usb audio interface theme: i recently tried the emagic emi2|6 on my powerbook (tibook G4, debian/unstable/2.6.5), with only partial success. the device is detected, the firmware apparently loaded, and snd-usb-audio appears to successfully claim the interface. however, when i try to use it with jack, jack bails out because it cannot find any usable sample format. when playing a soundfile with alsaplayer, i just get noise; sounds like an endianness problem. sorry, i can't post any output, as i don't have the interface at hand. i just wondered if someone has a working configuration for the emi26 on ppc hardware. maybe some asoundrc magic is enough? tia, <sk>

21 years, 6 months

Re: [linux-audio-user] MP3 streaming via JACK.

by mark62756＠comcast.net

you could use icecast2 and libshout as a source for icecast :) i havn't got around trying it but here is a link http://xiph.org/~karl/ -- Marko Dimiskovski > Hi all > Does anybody have any idea about what I could use for streaming audio via > MP3 from JACK apps? I know of ices but it doesn't appear to support MP3. > > Suggestions welcome > > Thanks in advance. > > Luke > -- > Luke Yelavich > http://www.audioslack.com > luke(a)audioslack.com > >

21 years, 6 months

Re: [linux-audio-user] Quattro USB (EMI 6|2m)

by Jorma R

> Jorma R wrote: > > What I haven't figured out is how to make the EMI capture at 6*24/44100 > > and playback at 2*16/44100 which would be the maximum performance by > > this box. > > Jack always tries to use the same sample format for both playback and > capture. > > Try this: > > pcm.emi62 { > type hw > card 0 # or whatever it is > } > > pcm.emi_all_24 { > type asym > playback.pcm { > type linear > slave { > pcm emi62 > format S16_LE > } > } > capture.pcm emi62 > } > > ctl.emi_all_24 { > type hw > card 0 > } > > > HTH > Clemens > > Thaks for this Clemens - I could not figure the suntax out myself. This got me further but unfortunately did not entirely resolve the problem. Now I do get 24-bit capture and 16-bit playback. But only with 2 channels of each. :) If I do not set the -i 2 switch for Jack I get only silence in the output ports. With 2 i/o channels I get the correct bit depths for both so the configuration above seems to be right. The rest may well be emi-spesific. I'll keep experimenting. -Jorma __ Sano ei kuukausimaksuille. Hanki Suomen edullisin kuukausimaksuton GSM-liittymä osoitteesta http://www.saunalahti.fi. Puhelut vain 0,109snt/min.

21 years, 6 months

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Linux-audio-user