Nabble - linux-audio-user

Re: best FLAC player?

2009-11-25T01:52:34Z

On Tue, 24 Nov 2009 13:43:25 -0800
"Aaron L." <elmastero74@...> wrote:

> I messed around with this a bit last night and re-converted my files
> with the wicked-long lengths (i.e. 15 days, etc.) and it fixed my
> issues. Thanks Soundconverter.

If the tags were lost in the process it was a problem with the headers.

> I seem to remember playing around with my character settings within
> Soundconverter a while back. I might've changed the default from
> "Western" to "Unicode" which might've caused this whole mess. Can't
> remember though.
>
> -Aaron

I doubt it. This would only affect tags and I'm reasonably sure it
won't mess with numbers, otherwise there'd be lots and lots and lots of
problems.

> PS: is there a setting that allows all my replies to this group to be
> routed to the group email address?

A setting where? Email clients usually have some way to reply to list.

> I keep sending individual emails to group members. Members, you have
> my apologies.

Not too big a problem, and this mail seems to have gone to the list, or
both.
One more thing, don't top-post, please bottom-post or reply
inline (like I just did here).
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Re: lashstudio for puppy linux 412

2009-11-24T21:34:36Z

AWESOME!!!!!! THANK YOU!!!!!

On Wed, Oct 7, 2009 at 10:35 AM, Marius Stoica <mariustoica@...> wrote:

Hi, I've put a pet package of ecasound on the sourceforge project download page, it uses the libs from lashstudio module so you have to load this also.
Download it from here https://sourceforge.net/projects/lashstudio/files/

Hope it helps

On Tue, Oct 6, 2009 at 10:55 PM, Eric Steinberg <eric.steinberg@...> wrote:

Slightly OT, but can anyone point me to a puppy module for ecasound? I've looked in vain...

On Sun, Oct 4, 2009 at 11:37 AM, Marius Stoica <mariustoica@...> wrote:

Hi,

I'd like to announce the first release of a puppy linux module with some audio and midi apps, named "lashstudio".

It's a suite of application that are all lash aware, packed in a squashfs module designed to work with Puppy Linux 412.
It uses JACK1 (v0.116.2) and LASH old version 0.5.4.
All the setup has some kind of historical flavour but with it you can tast the speed, the practicality and the power of linux audio and of puppy linux altogether.

More information at http://lashstudio.sourceforge.net
Download at the project page http://sourceforge.net/projects/lashstudio

Marius

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Re: open hw soundcard

2009-11-24T20:41:31Z

On Sat, Nov 14, 2009 at 02:04:16PM +0100, Karl Hammar wrote:

> > I am very excited to see so much progress on this. That ATMEL dev
> > board also seems like a fast way to get something up and running.
>
> Yes it is, but the processor on the cheap (~80USD) AT32NGW100 [3] is
> AT32AP7000 [4], which has a BGA [5] package only, which puts it out
> of the home hw hacker domain (special equipment is required to solder
> it).

BGA does not put it out of the home hw hacker domain, it just requires a
slightly more dedicated hacker. The interwebs are filled with guides
for doing BGA at home, including toaster ovens (modified or plain),
electric skillets, and hot air reflow.
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Re: "Swissonic Easy USB" anyone? [Was: Re: USB Audio interfaces for linux?]

2009-11-24T17:31:42Z

The firewire version is reported to work.... I know that doesn't help you but that is all I have got

On Tue, Nov 24, 2009 at 7:20 PM, Frank Barknecht <fbar@...> wrote:

Hallo,

while browsing Thomann myself, I stumbled accross the "Swissonic Easy USB"
http://www.thomann.de/de/swissonic_easy_usb.htm which seems to be a USB 2.0
version of a similar Firewire device (also available branded as Phonic).

What's interesting about this is that is has balanced stereo in and out, and
most of all the price: Thomann sells it for 29 Euro! That's cheap enough to buy
two and sponsor an ALSA developer with the second one. :)

Has anyone any experience with this device? Note that I'd be interested in the
USB version, my laptop doesn't do Firewire.

Ciao
--
Frank

Andrew C hat gesagt: // Andrew C wrote:
> I'm considering buying a USB Audio interface from thomann.de, can anyone
> reccommend one that's under 100 or 200 euro that works under linux?
> http://www.thomann.de/ie/cat.html?gf=usb_audio_interfaces&oa=pra
>
> Thanks.
>
> Andrew Coughlan.

> _______________________________________________
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> Linux-audio-user@...
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user

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Linux Audio Conference 2010: Call for Papers now open

2009-11-24T15:39:45Z

Dear reader,

as has been announced here 2 days ago by Marc Groenewegen, the next Linux
Audio Conference (LAC#8) will take place at the HKM in Utrecht, Netherlands,
from May 1st - 4th, 2010 (see http://lac.linuxaudio.org/2010).

We have now opened the Website that accepts paper submissions. Please direct your
browser to http://lac.linuxaudio.org/2010/openconf

For those who have been following the LAC activities in the past years: It's
the same used&tested "OpenConf" web-based system that allows us to easily collect
paper submissions, review them and create a programme from accepted papers.

The available categories for paper submission looks like this:

* Ambisonics
* Education
* Live performance
* Audio Hardware Support
* Signal Processing
* Music Composition
* Audio Languages
* Sound Synthesis
* Audio Plugins
* MIDI
* Music Production
* Linux Kernel
* Physical Computing
* Interface Design
* Linux Distributions
* Networked Audio
* Video
* Games
* Media Art
* Licensing

Note that "Video" is also in the list. Yes, that's not strictly Audio :-), but
we feel that the two disciplines are close enough to one another to allow
opening up the conference scope a bit here. After all, we have already had
several very nice audio/video gigs in the past (some might remember the YUE
concert in Karlsruhe 2006 with a remote VJ live from Italy, which was pretty
groundbreaking at that time).
Also, we very much welcome practical papers resp. software demos ("how I use
Linux Audio applications to create my music/media art").

The web page also holds the paper templates that have to be used for submissions.
Pick one of the two provided templates (LaTeX or OpenOffice), author your paper
and convert it to PDF, then upload that PDF. Make sure you are using A4 as
paper size.

Some constraints:
- The conference is held in English, so the paper has to be in English too.

- Length of a paper is 4-8 pages. Papers have to include an abstract (50-100
words). Also, papers should include up to 5 keywords.

- The copyright of the paper remains with you (of course), but we reserve the
right to create printed proceedings from all submitted (and accepted) papers.

- We have fixed the following dates:
- Deadline for paper submissions: February 14th, 2010
- Notification of paper acceptance: March 14th, 2010
- Deadline for final version of paper: April 4th, 2010

Please note that the OpenConf system is only to be used for paper submissions;
for concert pieces ("Call for Music") or sound installation proposals, please
contact us directly by email ("lac -at- linuxaudio -dot- org ").

We are looking forward to many interesting submissions for the 8th
Linux Audio Conference and we hope to see you in Utrecht in 2010!

Please feel free to forward this e-mail to anybody who might be
interested - mailing lists, blogs, Linux portals, magazines, you name them.
Public relation work for this conference is something we need, and where
everybody can easily help.

Thanks for reading.

On behalf of the LAC2010 organisation team,
Frank Neumann
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Re: best FLAC player?

2009-11-24T13:43:25Z

I messed around with this a bit last night and re-converted my files with the wicked-long lengths (i.e. 15 days, etc.) and it fixed my issues. Thanks Soundconverter.

I seem to remember playing around with my character settings within Soundconverter a while back. I might've changed the default from "Western" to "Unicode" which might've caused this whole mess. Can't remember though.

-Aaron

PS: is there a setting that allows all my replies to this group to be routed to the group email address?

I keep sending individual emails to group members. Members, you have my apologies.

On Tue, Nov 24, 2009 at 1:41 PM, Aaron L. <elmastero74@...> wrote:

On Tue, Nov 24, 2009 at 2:53 AM, david <gnome@...> wrote:

Arnold Krille wrote:
> On Monday 23 November 2009 22:32:17 Aaron L. wrote:
>> I've noticed that these time issues are the problems with Songbird choking
>> on my FLAC files as well. If a song is listed as being 15 days, 6 hours
>> and 50 minutes long, we got problems.......
>
> Or its just one of the shorter John Cage pieces :-)
>
> (To long since that name was mentioned on this list...)

"I know why the Caged songbird sings" ...

--
David
gnome@...
authenticity, honesty, community
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Re: FOSS Ethernet Soundcard

2009-11-24T12:27:25Z

Just a quick apology for effectively causing the spamming of two
groups. {ducks}

I started this thread on L.A.D. and only CC'd here to alert people to
the fact that the discussion was now 'there'.

So, can we take all the *development* discussions to L.A.D. only, and
we'll keep you informed here when we've got something to show you :)

--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
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Re: FOSS Ethernet Soundcard

2009-11-24T11:25:13Z

Kevin Cosgrove wrote:

>> Yes, there is an overview over protocols here:
>> http://en.wikipedia.org/wiki/Audio_over_Ethernet
> Seems like the latter reference is quite far ahead of the IEEE
> thoughts.

And how many of them are open standards?

Flo
--
Machines can do the work, so people have time to think.
public key DA43FEF4 x-hkp://wwwkeys.eu.pgp.net
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Re: FOSS Ethernet Soundcard

2009-11-24T11:15:15Z

I thought I saw someone mention trying to create open hardware for
Linux which would communicate over ethernet/internet. Has that
thread been pursued? If so, where?

Thanks...

--
Kevin

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Re: FOSS Ethernet Soundcard

2009-11-24T11:14:17Z

On 24 November 2009 at 11:36, Hans Wilmers <hanswil@...> wrote:

> > A lot of companies are working on this, but for anything but a simple
> > audio in/audio out you need technology that's not yet available to the
> > broad public - at least not to the usual prices. Check out the AVB
> > specification (IEEE 802.1).
> >
> > In the broadcast/studio segment, transport over ethernet is already in
> > use by some manufacturers.
> >
>
> Yes, there is an overview over protocols here:
> http://en.wikipedia.org/wiki/Audio_over_Ethernet

Seems like the latter reference is quite far ahead of the IEEE
thoughts.

--
Kevin

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Re: FOSS Ethernet Soundcard

2009-11-24T11:12:13Z

On 24 November 2009 at 11:26, Florian Faber <faber@...> wrote:

> A lot of companies are working on this, but for anything but a simple
> audio in/audio out you need technology that's not yet available to the
> broad public - at least not to the usual prices. Check out the AVB
> specification (IEEE 802.1).
>
> In the broadcast/studio segment, transport over ethernet is already in
> use by some manufacturers.

If a standard, like AVB IEEE 802.1 is in place, or a draft proposed,
then we'd be served well by aiming for it. If not, then learning
from what's out there would be prudent. Whatever is done,
implementing appropriate abstraction levels in the libraries, API,
etc. are a must to minimize rototilling the entire implementation.

--
Kevin

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[ANN] Jackbeat 0.7.3

2009-11-24T11:05:48Z

Hi everyone,

Jackbeat, the minimal-but-nevertheless-useful multi-platform step sequencer, has
just reached version 0.7.3 !

This is mainly a bugfix release, that you can grab from:
http://jackbeat.samalyse.org

It's easy to build and easy to try.

News
~~~~

- Tracks can now be reordered
- A buffer overflow and a bug preventing to load some jab files have been fixed

ChangeLog
~~~~~~~~~

jackbeat (0.7.3)
* #40: allow to reorder tracks (move up/down)
* #43: fix buffer overflow in core messaging routine
* fix bogus track name conflict when loading jab, thanks Florent

Enjoy

--
Olivier

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[Fwd] reminder: Music and Science Fiction CD: deadline approaching

2009-11-24T09:05:57Z

I only just stumbled over this... Only one day left! Too bad that this
has not been announced on the linuxaudio.org lists before.

----- Forwarded message -----

Date: Mon, 23 Nov 2009 17:34:29 +0100
From: Honor Harger <honor@...>
To: Recipient List Suppressed: ;
Subject: reminder: Music and Science Fiction CD: deadline approaching

Hi there,

I just wanted to remind you that the deadline for entries to the Music
and Science Fiction CD is rapidly approaching.

If you would like to submit something, and have not done so already,
please email your piece to: science.fiction.music.cd@... as per
the below guidelines by 25 November 2009.

We really look forward to hearing from you.

best wishes,

Honor Harger

PS. Please don't email your submissions to my personal email address.
They should go to science.fiction.music.cd@...

Music and Science Fiction: call for submissions

A new music compilation CD, produced by Maison d'Ailleurs (museum of
Science Fiction in Switzerland), is now accepting submissions. The CD
will be produced in 5600 copies, distributed for free with the music
magazine Vibrations in March 2010, to accompany a Music and Science
Fiction exhibition at the museum.
The submission deadline is 25 November 2009.

About the exhibition

Maison d'Ailleurs is staging an exhibition about Music and Science
Fiction from March 6th to August 1st 2010, which will explore the way
that Science Fiction has permeated music genres. Not only has Science
Fiction been linked to technological innovation in musical instruments
since the theremin, but thanks to its metaphorical potential, Science
Fiction narratives and images have been widely used by musicians, from
Sun Ra to Magma, Kraftwerk to Carl Craig, Louis and Bebe Barron to
Hawkwind...

About the CD

We thought it was high time to reflect on the many contemporary
connections between music and Science Fiction, by asking musicians to
come up with new projects inspired by the aesthetics, narratives or
sounds of the genre. Submissions can relate to the field in many ways,
including but not limited to.
- works which use Science Fiction related instruments (such as the
theremin, moog, mellotron)
- works which include sonic interpretation of ideas or sounds from
Science Fiction
- works which relate to Science Fiction narratives

Notes on the producers

Maison d'Ailleurs (House of Elsewhere) is a museum dedicated to
Science Fiction, Utopia and Extraordinary Journeys. It was founded in
1976 in Yverdon-
les-Bains (Switzerland) by French encyclopedist Pierre Versins. It is
a non-profit foundation functioning both as a public museum and a
specialized research center. -> http://www.ailleurs.ch

Vibrations is an independent Swiss music magazine published in French
and widely distributed in Switzerland and France: ->
http://vibrationsmusic.com/

This record is curated by Honor Harger (r a d i o q u a l i a),
Patrick J. Gyger (Maison d'Ailleurs), Horace Perret (O Musique) and
Joel Vacheron (Vibrations).

Specifications and info

* The submission deadline is 25 November, 2009.
* All genres accepted.
* We ask each band/performer to submit 1 song only for review. Only
finalized tracks, please (no demos, unfinished, work in progress,
etc.).
* Only previously unreleased tracks.
* Submissions should ideally be no longer than 8 minutes, and shorter
tracks are encouraged.
* If your submission is accepted, we'll send you a contract granting
us the use of the track for the 5600 CD print run. Once the CD is no
longer available (probably around the end of the exhibition, in August
2010), all rights of the tracks revert to you.
* The CD will be distributed free with 4600 copies of the Vibrations
Magazine in Switzerland. A further 1000 copies of the magazine with
the CDs will be produced to be sold in the museum during the show.
* Each band/performer appearing on the CD will receive 20 copies of
the CD to sell or distribute free.
* Each band/performer appearing on the CD will be paid 100 Euros for
their track. No other royalties will be paid on the sale of the CD.
* If your submission is accepted, you'll be asked to send us an AIF
file of the tracks and all the relevant information (title, composer,
etc.) before January 10th, 2010. If you fail to do so, we won't be
able to include your contribution.

Timeline

7th October 2009: call for submission launched
25 November 2009: deadline for submissions
10 December 2009: notification from selection panel sent to accepted
musicians
10 January 2010: final deadline to receive mastered tracks and all
relevant information, as well as signed contract.
15 January 2010: CD production launched
6th March 2010: opening of the exhibition and release of the CD with
the magazine

How To Submit Your Entries

* We will only accept submission via the internet. The email address
to send your submission to is: science.fiction.music.cd@...
* Please put the word "Submission" in your email header, along with
your last name and the title of your song.
* We prefer submissions in the MP3 audio format
* If you have MP3 files which are too large to send by email, we
suggest starting a free MP3 hosting account at: http://last.fm and
email us the link to your file.
* No hard copies (CDs, etc.), please.

Contact

MAISON D'AILLEURS
Museum of science fiction, utopia
and extraordinary journeys
PO Box, CH-1401 Yverdon-les-Bains, Switzerland
ph: +41 24.425.64.38, fax: +41 24.425.65.75
www.ailleurs.ch
maison@...

--
. . . . . . . . . . . . . . . . . . . . . . . . .

honor harger

present location: berlin .de

email: honor@...
phone: +49 1744500718

-> w e b
bio: http://www.radioqualia.net/honor

-> w o r k
guest curator of transmediale.10: http://www.transmediale.de

- > a r t
r a d i o q u a l i a: http://www.radioqualia.net

-> l i s t e n
radio astronomy: http://www.radio-astronomy.net

-> r e s e a r c h
mphil at z-node, ch: http://www.z-node.net/

----- End forwarded message -----
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Re: FOSS Ethernet Soundcard

2009-11-24T07:06:00Z

On Tue, Nov 24, 2009 at 8:04 AM, Peter Plessas <plessas@...> wrote:

> Have a look into AVB it seems to become the de-facto standard if that is
> possible (don't know about hardware/ethernet interface requirements)

Don't know how you are defining standard there.. to me a standard has
to actually be in common use, and believe me the closest thing there
is to a standard in my world of any sort to mutichannel digital audio
cabling/transport is either AES/EBU or MADI depending. Cable Ethernet
there are to many 'competing' standards and AVB is very much the
newcomer that I don't know of a single usage of it around me.

Seablade
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Re: UA-101

2009-11-24T06:19:14Z

Ivica Ico Bukvic wrote:

> > Ivica Ico Bukvic wrote:
> > > I see. Thanks for the clarification. What about the advanced mode clicks,
> > > though? Is this an entirely different problem?
> >
> > Those clicks have nothing to do with normal mode. (Although it is
> > possible that the descriptors are lying and you have the same problem
> > in normal mode.)
>
> So, is there a patch in the works that may address that part of the
> advanced mode as well?

Yes.

Best regards,
Clemens
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Re: UA-101

2009-11-24T05:55:32Z

> Ivica Ico Bukvic wrote:
> > > It addresses only recognition in normal mode, but the clicks should
> not
> > > happen in normal mode (in theory).
> >
> > I see. Thanks for the clarification. What about the advanced mode
> clicks,
> > though? Is this an entirely different problem?
>
> Those clicks have nothing to do with normal mode. (Although it is
> possible that the descriptors are lying and you have the same problem
> in normal mode.)

So, is there a patch in the works that may address that part of the
advanced mode as well?

Ico

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Re: FOSS Ethernet Soundcard

2009-11-24T05:04:25Z

Some notes (this goes to LAU only please mirror to LAD if necessary):

Have a look into AVB it seems to become the de-facto standard if that is
possible (don't know about hardware/ethernet interface requirements)

Tim Blechmann has written an alsa driver for the digigram lx6464es card,
which is used in some ethersound products (Tim?)
http://en.wikipedia.org/wiki/EtherSound

Rimas Avizienis at CNMAT and Meyersound built hardware alongside a UDP
protocol to stream many channels of audio to custom built hardware, as
for example used in a 120 channel loudspeaker array:
http://cnmat.berkeley.edu/publication/compact_120_independent_element_spherical_loudspeaker_array_progr

regards, Peter

Folderol wrote:

> Recent discussion on LAU morphed into an idea for an Ethernet driven
> sound card, and as this is now becoming a real development the
> suggestion was made that it would be better to transfer the discussion
> here.
>
>
> The rationale in brief:
>
> No proprietry hardware soundcard needed.
>
> Almost all modern computers have reasonably fast Ethernet connections.
>
> Potentially up to 20 channels per card - reality will probably be a lot
> different!
>
> FOSS drivers to connect Ethernet to whatever audio server is on the
> computer - looking at jack right now.
>
> FOSS within the soundcard module so that protocols/algorythings can be
> tuned for best results.
>
> FOSH design enabling hardware to be developed and inproved by anyone.
>
> A number of people have shown interest in this, and we are at the stage
> of starting to knock together some basic hardware for a feasibility
> study.
>
>
> State of play:
>
> On Mon, 23 Nov 2009 14:39:48 +0100 (CET)
> karl@... (Karl Hammar) wrote:
>
>> Folderol:
>>> On Sat, 21 Nov 2009 12:25:36 +0100 (CET)
>>> karl@... (Karl Hammar) wrote:
>>>
>>> <snip>
>>>
>>>> Would this project plan be ok:
>>>>
>>>> software and hw: Karl
>>>> testing and spec's: Folderol
>>>> publication via web: anyone??
>>>>
>>>> git repo: git://aspodata.se/openhw.git
>>>> mailing list: hopefully this list, else I put one up at my site
>>>> web site: ??
>>>>
>>>> intial platforms (both by Atmel):
>>>> . ATNGW100 (cheap), and
>>>> . AT91SAM9260-EK (expensive)
>>>>
>>>> Next step:
>>>> . set up development platform
>>>> . simple test with spi and shift registers
>>>>
>>>> Regards,
>>>> /Karl
>>> This is all fine by me, but I would make quite clear that if someone
>>> comes along with access to a {loadsamoney} spectrum analyser I'd be
>>> perfectly happy to step back and take a more supporting role.
>> Ok, I should get starting then.
>>
>> Regards,
>> /Karl
>
>
> Others would be welcome to come on board - pardon the pun!
>

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Re: UA-101

2009-11-24T04:28:00Z

Ivica Ico Bukvic wrote:
> > It addresses only recognition in normal mode, but the clicks should not
> > happen in normal mode (in theory).
>
> I see. Thanks for the clarification. What about the advanced mode clicks,
> though? Is this an entirely different problem?

Those clicks have nothing to do with normal mode. (Although it is
possible that the descriptors are lying and you have the same problem
in normal mode.)

Best regards,
Clemens
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Re: "Swissonic Easy USB" anyone?

2009-11-24T03:35:30Z

Hallo,
Clemens Ladisch hat gesagt: // Clemens Ladisch wrote:

> Frank Barknecht wrote:
> > while browsing Thomann myself, I stumbled accross the "Swissonic Easy USB"
> > http://www.thomann.de/de/swissonic_easy_usb.htm which seems to be a USB 2.0
> > version of a similar Firewire device (also available branded as Phonic).
>
> "USB 2.0" does not necessarily mean "high speed". However, with 24 bits
> at 96 kHz, full duplex would require high speed.

I did a bit more research: The device seems to be a re-branded "Phonic Firefly
202 USB". The Swissonic's power supply still sports the "Phonic" logo according
to Thomann's package shots like:
http://images1.thomann.de/pics/bdb/218444/1768844_800.jpg

Phonic has a page for its device including a downloadable PDF manual:
http://www.phonic.com/en/audio-interface/firefly-202-usb.html

According to that, driver installation is needed for Win and Mac. It also seems
to be full duplex at 96/24 so it probably requires high speed USB. Changing any
settings like samplerate must be controlled by the host computer. It is
unclear, if the device supports bitdepths other that 24 bit, like e.g. 16 bit.

> > Has anyone any experience with this device?
>
> Never heard of it.
>
> It might work out of the box, or it might have the same problems as
> other high speed USB audio devices.
>
> You know the only way to find this out. ;-)

Hehe, indeed I know. :) But I'm not in such a need for a new device, although
the price is very tempting (probably the cheapest way to get balanced in/outs
so far) and Thomann would take it back if it doesn't work without asking
questions. Well, maybe someone else is more curious ...

Ciao
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Re: Hmmm - do they work with Linux?

2009-11-24T03:08:58Z

Atte André Jensen wrote:

> david wrote:
>> The Eigenharps
>>
>> http://www.eigenlabs.com/
>
> Seems not:
>
> http://www.eigenlabs.com/software/
>
> "The Alpha requires a Mac computer to run"

Bummer in South Park. The instrument looks very versatile!

--
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Re: FOSS Ethernet Soundcard

2009-11-24T03:07:09Z

Atte Andre' Jensen wrote:

> Folderol wrote:
>
>> Recent discussion on LAU morphed into an idea for an Ethernet driven
>> sound card, and as this is now becoming a real development the
>> suggestion was made that it would be better to transfer the discussion
>> here.
>
> This sounds very promissing (I know it's only "in our minds" ATM).
>
> I wonder why no company took up this idea already, it seems so sleek and
> logical. (Almost) every computer has ethernet and the ethernet standard
> is (in my experience) problem free...

I believe there are already musical instruments with Ethernet
connectivity ... ah, sounds much like what Gibson was doing back in 2004:

http://www.wired.com/wired/archive/12.01/guitar.html

Their technology is proprietary (probably patented), and a previous
Google search found a number of patents, just to add to the minefield.

And here's an entry from Fender in 2005:

http://www.cnn.com/2005/TECH/11/21/wed.enabled.guitar/index.html

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Re: best FLAC player?

2009-11-24T02:53:37Z

Arnold Krille wrote:
> On Monday 23 November 2009 22:32:17 Aaron L. wrote:
>> I've noticed that these time issues are the problems with Songbird choking
>> on my FLAC files as well. If a song is listed as being 15 days, 6 hours
>> and 50 minutes long, we got problems.......
>
> Or its just one of the shorter John Cage pieces :-)
>
> (To long since that name was mentioned on this list...)

"I know why the Caged songbird sings" ...

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Re: FOSS Ethernet Soundcard

2009-11-24T02:36:39Z

Florian Faber wrote:

> Atte André Jensen wrote:
>
>
>> I wonder why no company took up this idea already, it seems so sleek and
>> logical. (Almost) every computer has ethernet and the ethernet standard
>> is (in my experience) problem free...
>>
>
> A lot of companies are working on this, but for anything but a simple
> audio in/audio out you need technology that's not yet available to the
> broad public - at least not to the usual prices. Check out the AVB
> specification (IEEE 802.1).
>
> In the broadcast/studio segment, transport over ethernet is already in
> use by some manufacturers.
>
>
> Flo
>

Yes, there is an overview over protocols here:
http://en.wikipedia.org/wiki/Audio_over_Ethernet

/ Hans

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Re: FOSS Ethernet Soundcard

2009-11-24T02:26:04Z

Atte André Jensen wrote:

> I wonder why no company took up this idea already, it seems so sleek and
> logical. (Almost) every computer has ethernet and the ethernet standard
> is (in my experience) problem free...

A lot of companies are working on this, but for anything but a simple
audio in/audio out you need technology that's not yet available to the
broad public - at least not to the usual prices. Check out the AVB
specification (IEEE 802.1).

In the broadcast/studio segment, transport over ethernet is already in
use by some manufacturers.

Flo
--
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Re: Hmmm - do they work with Linux?

2009-11-24T02:25:19Z

david wrote:
> The Eigenharps
>
> http://www.eigenlabs.com/

Seems not:

http://www.eigenlabs.com/software/

"The Alpha requires a Mac computer to run"

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Re: FOSS Ethernet Soundcard

2009-11-24T02:20:05Z

On Tue, Nov 24, 2009 at 10:15:05AM +0100, Florian Faber wrote:

> >> So I will plug this into my ethernet and have < 1ms latency? :)
> > Given the fact that AD/DA converters introduce more then one ms latency(*)
> > already: No.
>
> That depends on the converter and the sample frequency. Fast converters
> can go as low as 5 samples conversion latency.

It's not the AD/DA conversion that introduces most of the delay.
At 44.1 or 48 kHz the antialiasing filters are the main cause
of delay. A linear phase filter with a transition band of 1khz
(e.g. unity gain up to 21 kHz and near zero at 22 kHz) must
have a delay of around 1/1kHz or 1 ms.

Short delays are possible at 96 kHz, where you can have full gain
up to say 28 kHz going down to zero at 48 kHz. That's a range of
20 kHz, corresponding to 0.05 ms. It's one of the few advantages
of higher sample rates (but only if you don't use the full band-
width).

Ciao,

--
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Io lo dico sempre: l'Italia è troppo stretta e lunga.

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Re: FOSS Ethernet Soundcard

2009-11-24T02:18:01Z

Folderol wrote:

> Recent discussion on LAU morphed into an idea for an Ethernet driven
> sound card, and as this is now becoming a real development the
> suggestion was made that it would be better to transfer the discussion
> here.

This sounds very promissing (I know it's only "in our minds" ATM).

I wonder why no company took up this idea already, it seems so sleek and
logical. (Almost) every computer has ethernet and the ethernet standard
is (in my experience) problem free...

--
Atte

http://atte.dk http://modlys.dk http://virb.com/atte
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Re: FOSS Ethernet Soundcard

2009-11-24T02:16:16Z

> Lorenzo:
>
>>>> Recent discussion on LAU morphed into an idea for an Ethernet
>>>> driven sound card, and as this is now becoming a real
>>>> development
>>>>
>> So I will plug this into my ethernet and have < 1ms latency? :)
>>
>
> The "this" part is currently only in our minds for the moment, but if
> you solve the issue of connecting our "minds" to your ethernet port,
> I'll solve the 1ms latency part :)
>

:)
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Re: props to Atte!

2009-11-24T02:11:35Z

Atte André Jensen wrote:

> http://music.modlys.dk/track/laengere-vaek

And here's a direct link to the mp3:

http://modlys.dk/mp3/laengere_vaek.mp3

--
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Re: FOSS Ethernet Soundcard

2009-11-24T02:08:19Z

Lorenzo:
> >> Recent discussion on LAU morphed into an idea for an Ethernet
> >> driven sound card, and as this is now becoming a real
> >> development
> So I will plug this into my ethernet and have < 1ms latency? :)

The "this" part is currently only in our minds for the moment, but if
you solve the issue of connecting our "minds" to your ethernet port,
I'll solve the 1ms latency part :)

A simple ping:

$ ping granat
PING granat.lcl.aspodata.se (192.168.93.37) 56(84) bytes of data.
64 bytes from granat.lcl.aspodata.se (192.168.93.37): icmp_seq=1 ttl=15 time=0.758 ms

gives me a round trip of < 1ms, so it should be possible.

So the time from analog, pushing out samples from the sender port,
till it is received the receiver port would be lower bounded by:

sample conversion time
lcl transport time to cpu
cpu processing
cpu to ethernet tranceiver
ethernet preamble (assume quiet net)
cable delay
packet bit speed * packet length

Add to this any processing on the receiving side.

To help achieve low (network) latency one can:

. set up fixed arp entries (see arp(8))
. use fixed ip-addresses, no dhcp, no mDNS, no autoconfiguration or
other talky protocols
. don't mix other hosts on the lan, make it as quiet as possible
. no DNS, use /ets/hosts files
. if possible use a crossover cable [1]

What kind of latency do you think would be a goal to strive to ?

Regards,
/Karl

[1] http://en.wikipedia.org/wiki/Ethernet_crossover_cable

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Re: [LAD] FOSS Ethernet Soundcard

2009-11-24T01:33:45Z

Nick Copeland:

> Adrian Knoth:
> > I'm also somewhat interested in the network part, I feel IPv6 could help
> > a lot. It supports autoconfiguration and it has decent multicast
> > support, so it would be possible to broadcast/multicast the streams on
> > the net (LAN). This could be useful if you want to access the stream at
> > a mixing console for a life setup and simultaneously record it on a
> > computer.
>
> Put another way, it would be far more compatible if this were done over
> an IP stream rather than any native ethernet stream, not least it could use
> any ethernet driver that linux supports rather than a small subset of them.

Ack, a standard ip-stream is a sensible first choise.

> Perhaps the project needs to be specified with regards to its goals?
...

My goals is "just" to extend another project (industrial i/o).
What would your goals be ?

Shall we decide on a single mailing list ?

Regards,
/Karl

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Re: "Swissonic Easy USB" anyone?

2009-11-24T01:31:31Z

Frank Barknecht wrote:
> while browsing Thomann myself, I stumbled accross the "Swissonic Easy USB"
> http://www.thomann.de/de/swissonic_easy_usb.htm which seems to be a USB 2.0
> version of a similar Firewire device (also available branded as Phonic).

"USB 2.0" does not necessarily mean "high speed". However, with 24 bits
at 96 kHz, full duplex would require high speed.

> Has anyone any experience with this device?

Never heard of it.

It might work out of the box, or it might have the same problems as
other high speed USB audio devices.

You know the only way to find this out. ;-)

Best regards,
Clemens
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Re: Linux audio distros and accessibility

2009-11-24T01:26:13Z

On 11/24/2009 08:17 PM, Vedran Vucic wrote:

Hello,

I have friends who are persons with disabilities and they would like to use Linux audio distros if they would have accessibility support built in. GNOME and KDE do have accessibility features. I Think that it may be useful if developers will build in all accessibility packages by default so persons with disabilities can use Linux audio distros instantly.

We are already working on it and will let you know when we have more details.

Patrick Shirkey
Boost Hardware Ltd

Regards,

Vedran


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Re: FOSS Ethernet Soundcard

2009-11-24T01:25:08Z

Kevin Cosgrove:
> On 23 November 2009 at 20:28, Folderol <folderol@...> wrote:
> > Recent discussion on LAU morphed into an idea for an Ethernet
> > driven sound card, and as this is now becoming a real
> > development the suggestion was made that it would be better to
> > transfer the discussion here.
...
> I'm interested to see how far people have got with setting up the
> collaboration environment, requirements, spec's, etc. I'm an analog
> electrical engineer, and might be able to lend some help, advice,
> whatever.

Help is welcome !

Patrick Shirkey promised web:
http://lists.linuxaudio.org/pipermail/linux-audio-user/2009-November/065004.html

> Where was this initial discussion, that subsequently moved here?
> Would it be useful for interested parties to review what was written
> there? If so, could you please publish a link?

Ken Restivo put the question:
http://lists.linuxaudio.org/pipermail/linux-audio-user/2009-November/064562.html

and I responded:
http://lists.linuxaudio.org/pipermail/linux-audio-user/2009-November/064568.html

Regards,
/Karl

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"Swissonic Easy USB" anyone? [Was: Re: USB Audio interfaces for linux?]

2009-11-24T01:20:32Z

Hallo,

while browsing Thomann myself, I stumbled accross the "Swissonic Easy USB"
http://www.thomann.de/de/swissonic_easy_usb.htm which seems to be a USB 2.0
version of a similar Firewire device (also available branded as Phonic).

What's interesting about this is that is has balanced stereo in and out, and
most of all the price: Thomann sells it for 29 Euro! That's cheap enough to buy
two and sponsor an ALSA developer with the second one. :)

Has anyone any experience with this device? Note that I'd be interested in the
USB version, my laptop doesn't do Firewire.

Ciao
--
Frank

Andrew C hat gesagt: // Andrew C wrote:
> I'm considering buying a USB Audio interface from thomann.de, can anyone
> reccommend one that's under 100 or 200 euro that works under linux?
> http://www.thomann.de/ie/cat.html?gf=usb_audio_interfaces&oa=pra
>
> Thanks.
>
> Andrew Coughlan.

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