Re: [Sursound] Minim AD7 for sale

Sun, 1 May 2011 07:09:04 +0530, umashankar mantravadi a écrit : > i have the sabrent. it works very well in windows with asio for all. > it is advertised as 7.1 but has eight identical output channels (you > have to watch out for virtual 7,1 boxes) i have bult myself an eight > channel digiital a

Re: [Sursound] Minim AD7 for sale

I have a naive question for experts: would it be possible to recreate the acoustics of the Philips Pavillon using room simulation techniques and ambisonics spatialization? Sun, 01 May 2011 17:25:40 +0100, Richard Dobson a écrit : > Funnily enough, we had a performance at Bath Uni a few weeks ag

Re: [Sursound] Minim AD7 for sale

Sun, 01 May 2011 20:17:32 +0100, Richard Dobson wrote : > On 01/05/2011 17:25, Marc Lavallée wrote: > > > > I have a naive question for experts: would it be possible to > > recreate the acoustics of the Philips Pavillon using room > > simulation techniques an

Re: [Sursound] Minim AD7 for sale

Sun, 01 May 2011 21:11:48 +0100, Gerard Lardner wrote : > Actually I don't have an iPhone myself - but it seems to be the > smartphone of choice for this kind of control app. ;-) > > Also, I'm not fixated on Ubuntu, but merely I have used GlobalScale > plug computers in a couple of places where

[Sursound] Domestic speaker layout (was Re: Minim AD7 for sale)

Mon, 02 May 2011 06:59:40 +0200, Jörn Nettingsmeier wrote : > not native, but here's a very simple one that has been shoehorned > into a third-order workstation: > http://cec.concordia.ca/econtact/11_3/nettingsmeier_ambisonics.html I'd like to understand the "Versatile (and Quite Luxurious) Spea

Re: [Sursound] Speaker configs + subwoofers

I found very little information about domestic Ambisonic speakers setups. All I know is that it's better to use the same speakers and amplifiers for the whole setup... I adopted the layout proposed by Bo-Erik Sandholm (10 speakers), and now I have to find the right speakers. Here's some random th

Re: [Sursound] Speaker configs + subwoofers

Tue, 10 May 2011 11:07:14 -0600, Martin Leese wrote : > Marc Lavall?e wrote: > ... > > Here's some random thoughts (comments are welcome): > ... > > - I learned that it's possible to use subwoofers with Ambisonic; > > but a minimum of four subwoofers are required with a dedicated FOA > > decoder

Re: [Sursound] Speaker configs + subwoofers

Le 12 mai 2011 13:46:56, Jörn Nettingsmeier a écrit : > On 05/11/2011 03:42 AM, Marc Lavallée wrote: > > I like this idea of a full-sphere bass setup. There would be 3 (small) > > subs on the floor (front-left, front-right, rear-center) and one on the > > ceiling (like a Z

Re: [Sursound] looking for ambisonic field recordings

http://www.harpex.net/examples.html http://www.surround-library.com/nature.html Mon, 16 May 2011 17:53:36 -0400, Hector Centeno wrote : > Hi, > > Since ambisonia.com is gone I was wondering if anyone knows of a site > where to download sample recordings made using with any of the > commerciall

Re: [Sursound] looking for ambisonic field recordings

I wrote: > http://www.harpex.net/examples.html > http://www.surround-library.com/nature.html There's also those free 20 seconds demos: http://www.surround-library.com/demos > > Mon, 16 May 2011 17:53:36 -0400, > Hector Centeno wrote : > > > Hi, > > > > Since ambisonia.com is gone I was wonder

Re: [Sursound] looking for ambisonic field recordings

I forgot to mention : http://soundofspace.com/ (another web site by Etienne Deleflie) The files are in a special "ua" format: http://soundofspace.com/static/make_ua_file Here's the feed of torrents for the ua files: http://soundofspace.com/list/FieldRecording.rss > I wrote: > > http://www.harp

Re: [Sursound] Sound Externalization Headphone

A possible solution; use a VST host for OSX: http://sourceforge.net/projects/wacvst/ http://www.apple.com/downloads/macosx/audio/vfxhostsoftware.html -- Marc Le Thu, 26 May 2011 11:25:42 +0200, fotor...@gmx.de (Ralf R. Radermacher) a écrit : > Junfeng Li wrote: > > > I am now researching on 3D

Re: [Sursound] New filter

Le Mon, 30 May 2011 17:54:12 +0100, dw a écrit : > On 30/05/2011 17:45, Fons Adriaensen wrote: > > 2. Would you give me permission to add your filter (and a > > 48 kHz version) to the set supplied with jconvolver, with > > proper attribution in the config file of course ? > >

Re: [Sursound] New filter

Le Wed, 1 Jun 2011 09:27:27 +, Fons Adriaensen a écrit : > On Tue, May 31, 2011 at 11:16:34PM -0400, Marc Lavallée wrote: > > > In the meanwhile, here's my jconvolver config > > (I hope it is valid; it works well for me): > > > > /convolver/new 2 2 1024

Re: [Sursound] Bass Problem in crosstalk cancellation

Le Wed, 1 Jun 2011 19:38:10 +, Fons Adriaensen a écrit : > Ambiophonics makes a mess of it. Unless you use separate widely > spaced speakers for LF (driven by intensity-based stereo), as > some researchers have already recommended. I jut tried using 2 satellites at +-7.5 degrees (with the n

Re: [Sursound] Bass Problem in crosstalk cancellation

Le Thu, 2 Jun 2011 14:27:24 -0700 (PDT), Ralph Glasgal a écrit : > Obviously there is no reason not to use subwoofers with RACE, Wareing, > or Choueiri.  But those filters were designed to work with full range speakers, so unless the mains are on top of the subs I suppose it is better not to use

Re: [Sursound] Bass Problem in crosstalk cancellation

Le Fri, 03 Jun 2011 10:47:23 +0100, dw a écrit : > > I did a basic experiment with twos subs and a sound generation > > software (PureData with the equal_power_pan extension). I panned a > > bass sine tone from left to right and back, changing the frequency > > between 40Hz and 160Hz. I was able

Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation

> http://www.bgradia.com/PDFs/Better%20bass%20through%20multiple%20subwoofers.pdf > > best, > jim > > 2011/6/5 Marc Lavallée > > > Le Fri, 03 Jun 2011 10:47:23 +0100, > > dw a écrit : > > > > > > I did a basic experiment with twos subs and a sou

Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation

lso have good control of the room acoustics). If > that's not possible (and it often isn't), optimize the crossovers so > your 'mains' do most of the work and your sub (or subs) stays out of > the way as much as possible - just providing support for the lowest > frequen

Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation

Le 7 juin 2011 17:39:39, jim moses a écrit : > I think our localization of energy below 80Hz is ambiguous at best and is > complicated even more by the reality of room modes (that provide their own > spatial effect). But the bass range from about 100Hz to 600Hz is important > to provide a good sens

Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation

Le Thu, 9 Jun 2011 11:34:13 -0700 (PDT), Eric Benjamin a écrit : >  from wikipedia: > > > As the frequency drops below 80 Hz > > it becomes difficult or impossible to use either time difference or > > level difference to determine a sound's lateral source, because the > > phase difference betwee

Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation

Le Sat, 11 Jun 2011 14:41:13 -0600, Martin Leese a écrit : > > I understand that with ambisonics bass management is not required, > > although a dedicated decoder for 3 or more subs could be considered > > like bass management (when full range speakers are not available). > > The difference is n

Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation

écrit : > 12/06/11 01:59, "Marc Lavallée" wrote: > > > With stereo XTC, I prefer direct stereo bass (without a rear sub) > > than crosstalk cancelled bass, even it probably works well in some > > research lab... > > For some real-life signals (underst

Re: [Sursound] Portable ambisonics setup, or "how do you mount speakers on tubes?"

Le Sat, 02 Jul 2011 21:06:39 -0500, "Michael Graves" a écrit : > On Thu, 30 Jun 2011 14:41:23 -0400, jim moses wrote: > > >very good - can you tell us where to find the amplifier cards? > > In the US Parts Express has a series of thes amplifier cards. > > A 4 ch 100w/c card without PSU runs $5

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Fons Adriaensen a écrit : > And *if* I turn my head, for whatever reason, and the illusion > collapses, I'm not impressed... I just tried turning my head while listening to XTC. I can turn it more than 45 degrees in both directions without destroying the stereo image. So if turning the head is p

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

concept is the same for directionality. Once you have selected > the dimensional format (stereo, ambi, 5.1, etc) any format with a > lesser directional 'bandwidth' will be rendered 'stuck'. The concept > of "up-converting" dimensionally can only be a s

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Fons Adriaensen a écrit : > Most stereo recordings are made to be reproduced by two speakers, > seen by the listener at an angle of 60 to 90 degrees, and such that > the signals from either speaker reach both ears. That is the way it > is supposed to work. There is a solid theory behind this. Cal

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Fons Adriaensen a écrit : > As to material produced for conventional speaker playback, some > of it produces a 'nice' sound, with a clear spatial effect, as > long as you are not trying to focus your attention on individual > sources or instruments. Which is something I can't avoid doing > being

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Jörn Nettingsmeier a écrit : > On 07/10/2011 03:41 AM, Marc Lavallée wrote: > > I'm waiting for a pair of > > very directional speakers that should (hopefully) help me enjoy > > conventional stereo. > > then the manger might be for you: > http://manger-msw.de

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Robert Greene a écrit : > Is this the one you mean(the "strange article")? > > http://www.regonaudio.com/SphericalHarmonics.pdf Yes! :) > I wrote it myself! > I surely did not mean for it to be strange at all. > But the idea is intrinsically a bit complicated. > What one is really doing is dev

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Stefan Schreiber a écrit : > I don't want to annoy anybody or you, but don't explain acoustics via > square waves... I think that square waves is a good choice because of the amount of resolution required, and because of their harmonic distribution: http://www.youtube.com/watch?v=y6crWlxKB_E ht

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Stefan Schreiber a écrit : > Now come on, a square wave is not about music! Iannis Xenakis would not agree with you... -- Marc ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

dw a écrit : > On 10/07/2011 18:10, Stefan Schreiber wrote: > > > > > > If you can't reproduce full horizontal 360º surround via two front > > speakers, then the "binaural via two loudspeakers" approach doesn't > > work, and there is no solution to reproduce "3D sound" in this way. > > (Your c

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Stefan Schreiber a écrit : > Hello Marc... > > I don't get access to the (dropbox) file. > > > > > Error (404) > > > > We can't find the page you're looking for. It's not my DropBox, it's David's. He probably removed the file. I get the same error. His last message was : "I have deleted my

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

You can read the propaganda from Mangler about the "required" rise time of an amplifier: http://www.manger-audio.co.uk/products.htm Robert Greene a écrit : > No speaker requires a "fast" amplifier, > whatever that means. ALL amplifiers that > are not defective are far faster in any reasonable

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Jörn Nettingsmeier a écrit : > have you seen jerome daniel's "experimenter's corner"? I tried to read the beginning of his doctoral thesis; because it's in French, I though it would be easier to understand than the vast majority of papers in English, but I was wrong because the common language

Re: [Sursound] the recent 2-channel 3D sound formats and their viability for actual 360 degree sound

Stefan Schreiber a écrit : > > Right. I was speaking of 360 horizontal. Just to be clear, how > > many speakers are necessary at minimum for a "full sphere 3D" > > system? I've been told that a double twisted hex (3 in front, 3 in > > back at ear level, and 3 in front, 3 in back up high twisted

[Sursound] Distance perception

After reading this difficult thread (I'm replying with a new title), I have simple questions about room sizes and speaker distances. Mon, 25 Jul 2011 18:35:31 +0100, Dave Hunt wrote : > The Distance Compensation (aka NFC, and not the shelf filters) > attempts to correct for the loudspeakers n

Re: [Sursound] Distance perception

Mon, 25 Jul 2011 20:18:42 -0400, I wrote : > Imagine two rooms with proper acoustic characteristics and treatments > for ambisonics reproduction: the first is 3mX4m and the other is four > times larger in surface (9mX12m). Oops! This is of course 9 times larger, not 4... Anyway, what is a the eff

Re: [Sursound] Distance perception

Tue, 26 Jul 2011 10:14:50 +0200, Jörn Nettingsmeier wrote : > regardless of room size, they will require a bit of equalisation. if > the speakers are designed to be close to a boundary surface, the one > that's not against a wall needs (gentle) bass boost. vice versa, if > your speakers are desig

Re: [Sursound] Distance perception

Tue, 26 Jul 2011 21:32:26 +, Fons Adriaensen wrote : > Lamp cords ? Use at least 2.5 mm^2 ! I'll use less than 10 meters of cabling to drive 10W max in each tiny 6 ohms speaker. So I'm not worried at all. Gauge 14 or 16 should be fine: http://www.roger-russell.com/wire/wire.htm > The thing

Re: [Sursound] Distance perception

Speaker wiring really is a hot topic on all audio related forums. Next time I'll use the term "speaker wire" instead of "lamp cord". :-) For a small and inefficient Kef satellite speaker (3" with a tiny coaxial tweeter and internal crossover circuit), unable to reproduce frequencies lower that 12

Re: [Sursound] Distance perception

Wed, 27 Jul 2011 07:53:18 +, Fons Adriaensen wrote : > On Tue, Jul 26, 2011 at 10:26:49PM -0400, Marc Lavallée wrote: > > > How large is the resulting stereo image? > > As large as you make it, see below. In your earlier post you mentioned that you can't expla

Re: [Sursound] Distance perception (really speaker wire discussion!)

TED must be related to TLT: http://en.wikipedia.org/wiki/Tired_light_theory With very long cables, even a few light years long, what happens? -- Marc Le Wed, 27 Jul 2011 17:52:58 +0530, umashankar mantravadi a écrit : > > havent you heard of tired electron distortion ? (TID). the electrons >

Re: [Sursound] Ambisonics on the cheap?

Sarang, Here's my non-professional solution for 16 channels: - One recent PC with 2 free PCI slots - Two 7.1 PCI sound cards (16bit / 48KHz is enough) - Linux (or OSX) with Jackd - Basic soldering skills - A bit of lecture and some luck : http://quicktoots.linuxaudio.org/toots/el-cheapo/ http://w

Re: [Sursound] Ambisonics on the cheap?

This other module (less than $30) is limited to 16bit but seems to work at 48Khz with 8 channels: http://www.sabrent.com/category/audio/USB-SND8/ Umashankar have one. -- Marc Sat, 30 Jul 2011 01:17:57 -0400, Hugh Pyle wrote : > I have one of these, and it's cheap and works well. The biggest

Re: [Sursound] Ambisonics on the cheap?

Even using spare parts, a complete system can be cheap. - one plug computer with ethernet: 75 euros (or with wifi : < 100 euros) - one usb 7.1 sound card: < 20 euros - four or more small fullrange speakers: ? The first step would be to create a complete software system with a good user interf

Re: [Sursound] [ot] another patent

Le 21 septembre 2011 10:19:27, Stefan Schreiber a écrit : > > Remember, > > the original proposition was "Intellectual property... does not exist > > naturally - it is something granted by society to individuals", which I > > regard as mere sophistry, at best - a typical example of what I could >

Re: [Sursound] [ot] another patent

Le Wed, 21 Sep 2011 23:12:47 +0100, Richard Dobson a écrit : > On 21/09/2011 17:11, Marc Lavallée wrote: > .. > > > > "Information wants to be free" is a 40 years old aphorism, not a > > scientific statement, and it does not come from the free software &

[Sursound] AES50

Thu, 22 Sep 2011 23:37:38 +0100, Richard Dobson wrote: ... > such as on the newly announced AES50 HRMAI > ("High resolution multi-channel audio interconnection"), > which may be of interest to this list (a dizzying 24 channels > each way at 24/96 over Cat-5 cable) ... It's a revision of a sta

Re: [Sursound] online multichannel release

I suggest to take a look at the Web Audio API from the W3C : https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html -- Marc Le Sat, 26 Nov 2011 01:26:33 +0200 Marinos Koutsomichalis a écrit: > > about the 4 channels: they are 4 channels of audio to be played back > by a quad se

Re: [Sursound] Thanks for links, insights, etc.

Fri, 23 Dec 2011 12:15:56 +0100 Bo-Erik Sandholm wrote: > Fons even made me a Ambdec config for 10 speakers I should be able to > use with my MOTU traverer III He also made a 12 speakers preset for a second order periphonic setup, included in the ambdec distribution. But I don't know if it's bet

Re: [Sursound] OT: Spatial music

Two weeks ago, I saw a performance of Répons by Boulez. It was a canadian première, 30 years after its creation. The audience surrounded the orchestra, and six percussion instruments surrounded the audience, along with 6 speakers. It was happening in a very large room (an old boat factory), so the

Re: [Sursound] OT: Spatial music

I would fear an "applelization" of ambisonics. Apple could impose its own "ok" format (probably as a CAF "chunk" specification) with patents and lock-ins, because it's a common practice in the audio industry. Not everything in this world needs to be mainstream (but that's just my opinion). "Ronal

Re: [Sursound] OT: Spatial music

The CAF format is not patented, but there are patented file formats like GIF, ASF or PDF. Richard Dobson a écrit: > On 04/04/2012 00:13, Sampo Syreeni wrote: > > On 2012-04-03, Richard Dobson wrote: > > > >> Well, we don't need to get hyper-paranoid about it. Apple have > >> defined channel IDs

Re: [Sursound] Can anyone help with my dissertation please? New Title and questions...

David Pickett a écrit : > >Second, in the exploration of why Ambisonics did not > >succeed commercially(yet), it seems to me important > >to understand the whole nature of the success of technological > >products. They succeed if they offer a lot but demand nothing > >of the consumer mentally or

Re: [Sursound] Waveplayer - 16 chnl SD-card audio device

The snd_bcm2835 driver is for the integrated stereo sound module. For more channels, a cheap 8 channels USB sound module would probably work, and ALSA drivers for many sound modules are stable. Martin Leese a écrit : > Dave Malham wrote: > > > The Raspberry PI is really cheap and runs Linux,

Re: [Sursound] Viola d'amore, Ambisonia, & bittorrent files

Eric Carmichel a écrit : > My second question is that of bittorrent downloads. I’ve generally > avoid these because of... well... uncertainty as to the security of > my computer and the authenticity of downloads. I feel confident that > anything coming from Ambisonia (and its users) is safe, but

Re: [Sursound] Setting up my first ambisonic system

Max/Msp is a "dataflow" programming software; many decoder objects can maybe work together to create one valid decoder. The author would know. Jörn Nettingsmeier a écrit: > > There are ambisonic encode/decode externals for Max... > > http://www.grahamwakefield.net/soft/ambi~/index.htm > > That

Re: [Sursound] Ambisonia : BitTorrent

Bittorrent works well: the more people will download and seed files from Ambisonia, the more bandwidth will be available to all. With only a few seeders, I was able to download some files at 500K bytes per second. On Ambisonia the defaut download speed is limited to 100K, to save bandwidth from Yo

Re: [Sursound] preferred (small) linux distro for audio?

I use the KXStudio distribution based on the latest Ubuntu 12.04 LTS (Long Term Support). Two installation methods are proposed with a live-dvd (easiest) or a small netboot iso (prefered). It's also possible to use the kxstudio packages with a normal Ubuntu (my method). http://kxstudio.sourceforge

Re: [Sursound] preferred (small) linux distro for audio?

e the XO or the Raspberry Pi). For maintainers, rpm packages are easier to build, so that might be why you prefer Fedora. Marc Fernando Lopez-Lezcano a écrit : > On 07/04/2012 01:44 PM, Marc Lavallée wrote: > > > > [MUNCH]... > >But I much prefer Debian based distribut

Re: [Sursound] preferred (small) linux distro for audio?

Fernando Lopez-Lezcano a écrit : > Yum has gotten much faster recently, but I have no idea how it > compares with apt today. IMHO it is as easy to use as apt (ie: it is > functionally equivalent), but it may be slow (perhaps to the point of > being unusable?) on low end systems. I should give it

Re: [Sursound] List of open source software for wavefield synthesis

WONDER: http://sourceforge.net/projects/swonder/ Augustine Leudar a écrit : > Hello all, > I am currently making a WFS setup and would like to check out what > software is available (windows,mac or linux) . Could we compile a > list of software (preferably open source) avialable for wavefield >

Re: [Sursound] Domestic Concert Hall

Here's a few B-Format IRs: http://space-net.org.uk/node/50 http://www.acoustics.hut.fi/projects/poririrs/ Marc Daniel Courville a écrit : > Le 2012-07-08 10:02, Dan a écrit : > > >Hi, I'm very interested in trying out some HOA IR's, the only verb I > >have used so far is Daniel Courvilles B

Re: [Sursound] Waveplayer - 16 chnl SD-card audio device

; PS total number of pre-orders for PI's have reach 350,000! > PPS I'm not connected with them at all, I've not even ordered one! > > On 24/04/2012 18:33, Marc Lavallée wrote: > > The snd_bcm2835 driver is for the integrated stereo sound module. > > For more chan

Re: [Sursound] Waveplayer - 16 chnl SD-card audio device

p-amps and other bits to get going properly. Much more in the > > maker tradition - and a possible product. > > > > Dave > > > > PS total number of pre-orders for PI's have reach 350,000! > > PPS I'm not connected with them at all, I've no

Re: [Sursound] Waveplayer - 16 chnl SD-card audio device

But its only job would be to interface PCM streams to PWM inputs. There's also stereo D-class amp chips with I2S inputs. Marc > > Dave > > On 10/07/2012 02:20, Marc Lavallée wrote: > > Dave, > > > > It's possible to skip the A/D conversion by using am

Re: [Sursound] 4 channel Nipper

t; > cover is in colour, with the dog drawn in a black > > outline and the "movement lines" in red. All of > > the drawings are of just the dog; no > > gramophone. > > Back in July 2009, I offered to send people > the image of the New Scientist cover featuring

Re: [Sursound] 4 channel Nipper

Martin Leese a écrit : > Marc Lavallée > ... > > The article on page 222 is worth reading; > > "Will ambi-sound shatter the peace and quiet of the stereo market?" > by Adrian Hope. > > Also worth reading is the set of three articles > which argued the rig

Re: [Sursound] Cape for BeagleBone + preferred (small) linux distro for audio?

hannel dac linked directly > >>>>> (not via USB or owt like that) to an Arm processor that'll just > >>>>> play a multichannel file off of a USB stick or SD card. For > >>>>> prototyping I'll be using a BeagleBone (as I definitely don'

Re: [Sursound] Trans-Dimensional Portal

This list is not the place to explain why, but I must also mention that I'm "strictly non-Facebook". I hope that the results of the TDP project will be available not only on FB... This project is like my domestic ambisonics project; I postponed it because of a lack of time and energy, but I alrea

Re: [Sursound] Trans-Dimensional Portal

Email is still a valid and reliable technology. For archives (with search): https://mail.music.vt.edu/mailman/private/sursound/ http://blog.gmane.org/gmane.comp.audio.sursound Marc Augustine Leudar a écrit : > What about a forum ? I mean mailing lists are s 1980s - with a > forum you can e

Re: [Sursound] Spherical speakers ?

Augustine, Login to the mailman archive is required in order to access the link. Here's what it says: --- The late Dick Campbell designed a dodecahedron loudspeaker. Close? http://users.rcn.com/rhcamp/dodec45.pdf NeilA --- Marc Augustine Leudar a écrit : > Hi Neil and Marcia, > I co

Re: [Sursound] A proposal for an Ambisonics based 3D audio codec, MPEG/ITU style...

Stefan Schreiber a écrit : > If it < doesn't > cost to include AVC and AAC into web > browsers/plugins etc., maybe it is/was about Open Source principles? > (Any discussion leads to nothing, because I tend to see this in a > pragmatic way. For others it is about "open lifestyle". The same > peop

Re: [Sursound] A proposal for an Ambisonics based 3D audio codec, MPEG/ITU style...

Stefan Schreiber a écrit : > >The Android OS is "open", although not entirely: > >http://en.wikipedia.org/wiki/Android_%28operating_system%29#Licensing > > > > Very closely controlled by Google, even if being based on Linux and > some (propietary) hack of Java? Yes, developed and controlled b

Re: [Sursound] A proposal for an Ambisonics based 3D audio codec, MPEG/ITU style...

Stefan Schreiber a écrit : > >As for Java, it is now a free software and its > >implementation for Android (Dalvik), is free too. > > > Really?! Java is not free, unless you are referring (only) to the > programming language. (Libraries? VM?) Hi Stephan. The Java language and its specificati

Re: [Sursound] A proposal for an Ambisonics based 3D audio codec, MPEG/ITU style...

format. I can only wait and see. -- Marc Stefan Schreiber a écrit : > Marc Lavallée wrote: > > > > > > >Remember that MPEG is creating proprietary, industrial and commercial > >standards using lots of patents. How Ambisonics can co-exist? > > > &g

Re: [Sursound] Broadcasting b-format - again

How about a simple wireless analog trick: http://hackaday.com/2012/08/31/a-laser-audio-transmitter/ http://www.instructables.com/id/Send-Music-over-a-Laser-Beam/ -- Marc Ross Bencina a écrit : > On 26/01/2013 11:55 AM, Fons Adriaensen wrote: > > If the speaker input is analog, you'll have a DA

Re: [Sursound] Broadcasting b-format over 802.11g to Ambisonic speaker system

NTP could be a good starting point, if drifting is further corrected with the help of some analog signal, like a sonic impulse or a bright flash. -- Marc Ross Bencina a écrit : > On 27/01/2013 9:55 PM, Michael Chapman wrote: > > But good point (I had browsed the DCF77 signal (Frankfurt clock) b

Re: [Sursound] Broadcasting b-format over 802.11g to Ambisonic speaker system

There's a better solution that NTP (with some analog trick): http://en.wikipedia.org/wiki/Precision_Time_Protocol It works on a properly configured multicast network with UDP packets, for example on a private Wifi network, so no special hardware is required. Here's two free implementations for L

Re: [Sursound] Ambisonic hydrophone?

umashankar manthravadi a écrit : > angelo farina has exactly the beast you are looking for. he had a > power point presentation describing its use here is the link > http://www.angelofarina.it/Public/Presentations/UAM2011_Underwater_Ambisonics_files/frame.htmumashankar Fons Adriaensen a écrit :

Re: [Sursound] Ambiophonics

I tried a few solutions for crosstalk cancellation. The best one is to use a physical barrier. All other solutions (or filters) should be compared to a physical barrier. The problem is that most (if not all) stereo recordings are not made for crosstalk cancelled listening; I had a lot of fun, but a

Re: [Sursound] DVD-A:"Burn"

For Linux and Mac OSX, you can use the DVD-Audio Tools: http://dvd-audio.sourceforge.net/ -- Marc Michael Dunn a écrit : > I just discovered Burn (free), which purports to supports DVD-A > burning! Woo. Anyone have experience with this, or other, free DVD-A > burning SW? _

Re: [Sursound] what mics do you use?

I make interesting stereo recordings with Soundman binaural microphones (OKM II Classic) attached at the base of my neck (on my shoulders). Marc Augustine Leudar a écrit : > for binaural I use the soundman mics > > On 23 April 2013 21:05, Matthew Palmer > wrote: > > > Thanks for the heads-u

Re: [Sursound] What does a mic with more than 4 channels give you?

You can publish a final draft of your article on your personal web site. Consult these links for more information: http://en.wikipedia.org/wiki/Self_archive http://www.sherpa.ac.uk/romeo/search.php?issn=0002-9890 http://www.ams.org/publications/authors/ctp http://www.ams.org/authors/ctp.pdf -- Marc

Re: [Sursound] idea

Been there, done that too (between 1990 and 2001). Using light beams, infrared distance sensors, motion detection with cameras, even microphones as accelerometers... They were more theatrical than musical devices. Triggering events and sequences was the only way to be "musical". Another idea: I w

Re: [Sursound] idea

Dave Malham a écrit : > Another idea: I would like to use my Kinect for head tracking to check > > if a listener's head is outside the "ambisonic sweet spot", or to > > adjust the decoding parameters according to the head position. > > > > > This would be eminently do-able, I think, so long as >

Re: [Sursound] Making a standalone 8ch player

That's an interesting idea: clustering Raspberry Pis with cheap 8 channels usb modules and jackd2. -- Marc "Michael Chapman" a écrit : > > Hello all, > > I want to start making a standalone 8 channel player (maybe more) - > > something that can be used in museums, festivals etc for sound > > in

Re: [Sursound] Testing left, center, right...

Here's a blog post about free LP EQ plugins: http://bedroomproducersblog.com/2012/02/06/bpb-freeware-studio-best-free-linear-phase-eq-vstau-plugins/ The Glacier LinEQ020 is the simplest one. -- Marc Eero Aro a écrit : > Hi > > My original experiments are in the old computer, so I I made a quick

Re: [Sursound] Hmmm - gamechanger ?

Here's my good and bad impressions: - Six channels is good (simultaneous stereo and Ambisonics recording) - Cheap and good enough (but then, what's "good enough"?) - No EQ at the inputs is good (to be verified) (the capsules on the H2 are slightly EQed, and the EQs are hard wired) - Only two cha

Re: [Sursound] AKG does Ambisonics?

Paul Hodges a écrit : > --On 22 July 2013 23:48 +0200 Matthias Kronlachner > wrote: > > > looks like the cube, > > I presume "The Cube" is a name I haven't come across. However, for > the avoidance of doubt, the text alongside the images in FaceBook > states that it is four diaphragms in a te

Re: [Sursound] OT: ear freshening

There's a potential side effect with gin and tonic; the quinine contained in tonic water can cause tinnitus (ear buzzing). It's probably safer to put more gin than tonic water... ;-) -- Marc Richard G Elen a écrit : > On 15/08/2013 22:27, David Worrall wrote: > > I've be interested to hear ...i

Re: [Sursound] , ambi playback configution and calibration

Why waiting until 2020? It should be possible with available technologies. A Kinect camera (or two spaced cameras) could be used to detect the positions of the speakers from the listener's point of view, then the same Kinect could be placed in front of the listener to report its listening position

Re: [Sursound] , ambi playback configution and calibration

The distance measurement is obviously more precise when using microphones. One camera could be used to find the speaker angles (relative to the listening position). Gavin Kearney a écrit : > Hi, > There has been many commercial products for 5.1 based on the notion of > self-calibration. > The i

Re: [Sursound] Questions about support of .amb file (Wave based)

Thu, 3 Oct 2013 04:33:50 - (GMT), "Michael Chapman" a écrit : > No idea what folks who do physical measurements over time use as file > formats (light intensity over 24 hours for example), but if I didn't > know of anything better .wav would fit the bill. > But this is straying a little off t

Re: [Sursound] Very inexpensive surround speakers

"Andrew Castiglione" a écrit : > Have ever heard the difference between wood and plastic enclosures...? > > Wood is more natural... no pun intended. > > Plastic is problematic... loss of detail, rattles in high dynamics, > plastic has a howled presentation to boot! > > Logitech is near field...

Re: [Sursound] Very inexpensive surround speakers

is possible with a "3D7.1" configuration (using a 7.1 speaker kit). I yet have to try it. -- Marc > On Sun, Oct 20, 2013 at 7:12 PM, Charlie Richmond > wrote: > > > On Sun, Oct 20, 2013 at 3:59 PM, Marc Lavallée > > wrote: > > > > > > > >

Re: [Sursound] Very inexpensive surround speakers

ld need an apropriate Ambisonics decoder... -- Marc > > On 21 October 2013 01:11, Marc Lavallée wrote: > > > Matthew Palmer a écrit : > > > I'm wondering if it (4 sets of Logitechs) can give me 3d > > > gratification for a little over $200. I know I'm

Re: [Sursound] Linux ambdec b-format channel order

In my experience, the order of channels in jack are stable enough to use this simple channels remapping trick: mplayer -channels 4 -af channels=4:4:0:0:1:3:2:1:3:2 -ao jack:port=ambdec AJH_eight-positions.amb Adapt as needed. -- Marc Fons Adriaensen a écrit : > On Thu, Nov 14, 2013 at 12:00:

<    1   2   3   4   5   >