Re: [Sursound] Patent application: Data structure for HOA

2012-11-03 Thread Stefan Schreiber
before, at least I have some strange déjà vu feeling here... :-) Best, Stefan Schreiber To: Surround Sound discussion group Subject: Re: [Sursound] Patent application: Data structure for HOA On 1 Nov 2012, at 23:07, Stefan Schreiber st

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Paul Hodges
--On 02 November 2012 02:30 + Stefan Schreiber st...@mail.telepac.pt wrote: - Windows NT is partially based on C++. I don't see based on - written in is not the same. NT was a rename of OS/2 v3, the version being re-engineered for cross-machine compatibility by MS (while IBM were

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Justin Bennett
On 1 Nov 2012, at 17:00, sursound-requ...@music.vt.edu wrote: i am wondering if we cannot produce HRTFs the way the first produced spectacle lenses. one needs to look at the range of variations in HRTFs and what actually varies from person to person and produce a dozen or so hrtfs. people

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Ronald C.F. Antony
On 1 Nov 2012, at 06:24, Peter Lennox p.len...@derby.ac.uk wrote: Download the binaural for binaural use, and the stereo for stereo use? - in fact, instead of trying to make one format fit all - people could just download a folder and extract the ones they needed... That's an academic

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Dave Malham
Hi On 2 November 2012 03:54, Alexis Shaw alexis.s...@gmail.com wrote: For HRTF based sound, headphones work the best. The HRTF is the solution of the in-head effects. Actually, you simply can't guarantee that. To even get close to guaranteeing that it will work for the majority head tracking

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Ronald C.F. Antony
On 1 Nov 2012, at 22:30, Stefan Schreiber st...@mail.telepac.pt wrote: Ronald C.F. Antony wrote: Object Oriented programming was available 1978/1980. It wasn't used until NeXT started pushing ObjC and SUN tried to rip it off unsuccessfully with Java (which barely qualifies because for

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Ronald C.F. Antony
On 1 Nov 2012, at 22:47, Stefan Schreiber st...@mail.telepac.pt wrote: Ronald C.F. Antony wrote: You're angry at reality. I'm not making these things up, nor do they constitute my ideal world. But I'm willing to face the reality and ask which small steps can we take to get from here to

Re: [Sursound] Patent application: Data structure for HOA

2012-11-02 Thread Ronald C.F. Antony
On 1 Nov 2012, at 23:07, Stefan Schreiber st...@mail.telepac.pt wrote: The next and valid question is if stereo via headphones actually works so well at all... (Many people have problems, such as in-head effects, lack of perceived real space, etc.) If you would fix these problems, then

Re: [Sursound] Patent application: Data structure for HOA

2012-11-01 Thread Stefan Schreiber
Ronald C.F. Antony wrote: Object Oriented programming was available 1978/1980. It wasn't used until NeXT started pushing ObjC and SUN tried to rip it off unsuccessfully with Java (which barely qualifies because for several iterations of the language it missed key elements of a real OOP

Re: [Sursound] Patent application: Data structure for HOA

2012-11-01 Thread Stefan Schreiber
Ronald C.F. Antony wrote: On 29 Oct 2012, at 20:56, Stefan Schreiber st...@mail.telepac.pt wrote: Oh yes, go to Apple and look if they listen to your ideas, and let others do their stuff instead of doing some promotion for some stylish, fahionable campany offering super slim products.

Re: [Sursound] Patent application: Data structure for HOA

2012-11-01 Thread Stefan Schreiber
Peter Lennox wrote: Am I missing something? - for mobile use, wouldn't B-format to binaural be better than UHJ? Dr Peter Lennox Yes, but then you didn't need a solution requiring the participation of mighty Apple... ;-) Best, Stefan

Re: [Sursound] Patent application: Data structure for HOA

2012-11-01 Thread Stefan Schreiber
Peter Lennox wrote: Download the binaural for binaural use, and the stereo for stereo use? - in fact, instead of trying to make one format fit all - people could just download a folder and extract the ones they needed... Dr. Peter Lennox I already wrote this. Of course, you put this into

Re: [Sursound] Patent application: Data structure for HOA

2012-11-01 Thread Stefan Schreiber
Richard Dobson wrote: The same is true of stereo too. There are people who just don't hear stereo as stereo. If the response to lack of perfection is always do nothing, nothing will be done. Alternatively, if you use those generic HRTFs, at least ~some~ people will be happy. BTW, the AES

Re: [Sursound] Patent application: Data structure for HOA

2012-11-01 Thread Alexis Shaw
For HRTF based sound, headphones work the best. The HRTF is the solution of the in-head effects. On 2 November 2012 14:07, Stefan Schreiber st...@mail.telepac.pt wrote: Richard Dobson wrote: The same is true of stereo too. There are people who just don't hear stereo as stereo. If the

Re: [Sursound] Patent application: Data structure for HOA

2012-10-31 Thread Peter Lennox
...@music.vt.edu [mailto:sursound-boun...@music.vt.edu] On Behalf Of Ronald C.F. Antony Sent: 30 October 2012 18:14 To: Surround Sound discussion group Subject: Re: [Sursound] Patent application: Data structure for HOA On 30 Oct 2012, at 06:24, Peter Lennox p.len...@derby.ac.uk wrote: Am I missing

Re: [Sursound] Patent application: Data structure for HOA

2012-10-31 Thread Martin Leese
Peter Lennox wrote: Yes but...why not simply release stuff for mobiles in a generic binaural - skip the uhj altogether? Please, what is this generic binaural? Everyone has an individual HRTF. If you release binaural recording using a generic HRTF then it will work for some and not for

Re: [Sursound] Patent application: Data structure for HOA

2012-10-31 Thread Robert Greene
This is absolutely true. My late first wife heard stereo as two separate speakers no matter how well the speakers worked for others. She liked mono a lot better. Surround sound was a n ightmare from her viewpoint-- all those speakers playing from different directions each on heard individually.

Re: [Sursound] Patent application: Data structure for HOA

2012-10-31 Thread etienne deleflie
If the response to lack of perfection is always do nothing, nothing will be done. Which perfectly explains why we don't have an accepted ambisonic file format. No one is willing to accept limitations... and it is so easy to find limitations in formats. I firmly believe that a successful

Re: [Sursound] Patent application: Data structure for HOA

2012-10-31 Thread Ronald C.F. Antony
Sent from my mobile phone On 31 Oct 2012, at 07:08, Peter Lennox p.len...@derby.ac.uk wrote: Yes but...why not simply release stuff for mobiles in a generic binaural - skip the uhj altogether? Because you also want to listen to the same piece on your home and car stereo? Ronald

Re: [Sursound] Patent application: Data structure for HOA

2012-10-31 Thread umashankar manthravadi
Subject: Re: [Sursound] Patent application: Data structure for HOA This is absolutely true. My late first wife heard stereo as two separate speakers no matter how well the speakers worked for others. She liked mono a lot better. Surround sound was a n ightmare from her viewpoint-- all those

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Richard Lee
Unless things have changed a lot, last I checked lossy compression messes up phase relationships, and that would be an issue for things like UHJ, which as long as portable stereo players with limited battery life (and thus limited CPUs), is the only viable, because stereo compatible,

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Peter Lennox
...@music.vt.edu [sursound-boun...@music.vt.edu] On Behalf Of Richard Lee [rica...@justnet.com.au] Sent: 30 October 2012 19:51 To: 'Surround Sound discussion group' Subject: Re: [Sursound] Patent application: Data structure for HOA Unless things have changed a lot, last I checked lossy compression

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Martin Richards
From: Richard Lee rica...@justnet.com.au To: 'Surround Sound discussion group' sursound@music.vt.edu Sent: Tuesday, 30 October 2012, 19:51 Subject: Re: [Sursound] Patent application: Data structure for HOA Unless things have changed a lot, last I checked

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Eero Aro
Richard Lee wrote: Take your favourite Nimbus UHJ CD and rip it using the most evil MP3 encoder you can find Sorry, slightly off-topic, but still: Some people have done terrible data reduction to UHJ recordings already: http://www.youtube.com/watch?v=FnvRtM5WDsc

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Ronald C.F. Antony
On 29 Oct 2012, at 20:42, Stefan Schreiber st...@mail.telepac.pt wrote: Ronald, most if not all (classical) recordings where I am participating are done in a way that they could be issued in 5.1 (or say 5.0) surround, namely several Pentatone recordings, and even the more recent

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Ronald C.F. Antony
On 30 Oct 2012, at 06:24, Peter Lennox p.len...@derby.ac.uk wrote: Am I missing something? - for mobile use, wouldn't B-format to binaural be better than UHJ? Dr Peter Lennox Of course it would. Do you know of a mobile playback device with multi-channel audio support, multi-channel audio

Re: [Sursound] Patent application: Data structure for HOA

2012-10-30 Thread Ronald C.F. Antony
On 29 Oct 2012, at 20:56, Stefan Schreiber st...@mail.telepac.pt wrote: Oh yes, go to Apple and look if they listen to your ideas, and let others do their stuff instead of doing some promotion for some stylish, fahionable campany offering super slim products. You make my point: they won't

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread Paul Hodges
--On 28 October 2012 20:00 -0700 Robert Greene gre...@math.ucla.edu wrote: I think compressed surround stuff is a nonstarter in the real world. You would be looking for a person who cared a lot about surround but did not give a darn about sound quality. I doubt that there are many such! DTS

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread Ronald C.F. Antony
On 28 Oct 2012, at 22:34, Stefan Schreiber st...@mail.telepac.pt wrote: When Ambi VLC happens, I predict the re-surrection of UHJ. Simple 2 channels will remain the most important distribution format in the forseable future. This is real surround sound? Why not Dolby Surround...:-D

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread Ronald C.F. Antony
On 28 Oct 2012, at 03:11, Richard Lee rica...@justnet.com.au wrote: This will be a lossy compressed format probably based on the public domain Vorbis. Unless things have changed a lot, last I checked lossy compression messes up phase relationships, and that would be an issue for things like

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread Steven Southerden-Dive
Here! Here! (Goes back under stone. Now, where's my old Minim and my relatively uncompressed CD's?) On 29 Oct 2012, at 14:28, Ronald C.F. Antony r...@cubiculum.com wrote: On 28 Oct 2012, at 22:34, Stefan Schreiber st...@mail.telepac.pt wrote: When Ambi VLC happens, I predict the

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread etienne deleflie
At this point in time, not only is most music listened on mobile devices, most music is even purchased on mobile devices, and that's strictly a stereo (or maybe binaural) world. With a custom iPhone/Android app that employs headtracking (+ headsets) on iPhone/Android devices ... you have a

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread Stefan Schreiber
Ronald C.F. Antony wrote: On 28 Oct 2012, at 22:34, Stefan Schreiber st...@mail.telepac.pt wrote: When Ambi VLC happens, I predict the re-surrection of UHJ. Simple 2 channels will remain the most important distribution format in the forseable future. This is real surround sound?

Re: [Sursound] Patent application: Data structure for HOA

2012-10-29 Thread Stefan Schreiber
Ronald C.F. Antony wrote: On 29 Oct 2012, at 18:47, etienne deleflie edelef...@gmail.com wrote: At this point in time, not only is most music listened on mobile devices, most music is even purchased on mobile devices, and that's strictly a stereo (or maybe binaural) world. With a

Re: [Sursound] Patent application: Data structure for HOA [RANT]

2012-10-28 Thread etienne deleflie
Hi Richard, Yes, what it does, it does very well. However, as described, you are asked to first create an n-channel interleaved WAVE file containing all those uncompressed silent channels, and pass that to wavpack. Which is fine in principle, except that with a possibly large number of

Re: [Sursound] Patent application: Data structure for HOA [RANT]

2012-10-28 Thread Richard Dobson
On 28/10/2012 23:12, etienne deleflie wrote: Hi Richard, .. The 4GB limit has been considered within UA. The wavpack format itself has the limit of 2^32 samples, which translates to 27 hours at 44 kHz (or 1 hour of 27 channels at 44kHz). The users who have been emailing me are all working

Re: [Sursound] Patent application: Data structure for HOA

2012-10-28 Thread etienne deleflie
I think no serious person in audio wants anything to do with lossy compression which is a commercial compromise for no real reason(uncompressed audio no longer looks like that big a file). Since probably no one is interested in exotic surround items except people who are serious about audio,

Re: [Sursound] Patent application: Data structure for HOA

2012-10-27 Thread Richard Dobson
I received a message back from Jan-Mark Batke, to the effect they will pass my comments on to the patent authorities. It is classified at this stage as a disclosure. The four inventors are members of Technicolor, and the new system is briefly featured here:

Re: [Sursound] Patent application: Data structure for HOA

2012-10-27 Thread Richard Lee
As I've said ad nauseum, the guy who first integrates an Ambi decoder into VLC, getting around the evil Windoz mixer etc. gets to choose the data structure for next important Ambi format. This will be a lossy compressed format probably based on the public domain Vorbis. Ambisonia was the 1st

Re: [Sursound] Patent application: Data structure for HOA

2012-10-27 Thread Ronald C.F. Antony
Please not! He who is happy with lossy compression is hardly a candidate to have a properly set up surround system, much less one suitable to Ambisonics. Lossless compression is OK, even desired, as an option, preferably something that's freely licensed and enjoys commercial support e.g. ALAC

Re: [Sursound] Patent application: Data structure for HOA

2012-10-27 Thread etienne deleflie
Hi Richard, Now the attention in previous posts was very much on the phrase most sophisticated format, which was guaranteed to wind people up; whereas the key word is really available. The UA format is not really available to ~composers~ to use. The description is very much one for

Re: [Sursound] Patent application: Data structure for HOA

2012-10-27 Thread etienne deleflie
I suspect that - any file format that has any level of sophistication (read: complexity) will likely not get take-up (maybe even UA is too complex. Straight old B-format is fine). Its not what features are included that counts that's the engineer's mistake. - any file format which can't

[Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Roger Klaveness
Hi, Just noticed this the other day: WO2012059385 DATA STRUCTURE FOR HIGHER ORDER AMBISONICS AUDIO DATA http://patentscope.wipo.int/search/en/detail.jsf?docId=WO2012059385 I haven't read all the 75 pages, mostly looking at the pictures :-) But it looks like it's about combining different

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Michael Chapman
Hi, Just noticed this the other day: WO2012059385 DATA STRUCTURE FOR HIGHER ORDER AMBISONICS AUDIO DATA http://patentscope.wipo.int/search/en/detail.jsf?docId=WO2012059385 I haven't read all the 75 pages, mostly looking at the pictures :-) Who is/are the applicant(s) ? But it looks

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Dave Malham
Hi On 24 October 2012 09:37, Michael Chapman s...@mchapman.com wrote: Hi, Just noticed this the other day: WO2012059385 DATA STRUCTURE FOR HIGHER ORDER AMBISONICS AUDIO DATA Who is/are the applicant(s) ? Well it's Thomson and the inventors include people like Johann-Markus Batke and

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Michael Chapman
Hi On 24 October 2012 09:37, Michael Chapman s...@mchapman.com wrote: Hi, Just noticed this the other day: WO2012059385 DATA STRUCTURE FOR HIGHER ORDER AMBISONICS AUDIO DATA Who is/are the applicant(s) ? Well it's Thomson and the inventors include people like Johann-Markus Batke and

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Richard Dobson
Interesting (in its way), looks like a combo of HOA Ambisonic scene description (using multiple HOA streams possibly of different orders) and bandwidth compression; i.e. there is an encoding and decoding device as part of the application, as there would need to be, given that patents

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Michael Chapman
The B-Format (based on the extensible ^iff/wav' structure) with its *.amb file format realisation as described as of 30 March 2009 for example in Martin Leese, File Format for B-Format , http://www. ambisonia.com/Members/etienne/Members/mleese/file-format-for-b-format, is the most

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Richard Dobson
Hmm, well, that rather proves my point, and I will write to them. I have every confidence that that sentence was written ironically rather than hagiographically. Suffice it to say, I, Richard Dobson, did that work in 2000; and it appears the title to even that very modest piece of IP (embodied

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Mathieu Guillaume
Hi, Richard Dobson wrote: I guess I haven't played the system well enough - as the person who first published the amb format (not in 2009 but in 2000, in my paper for ICMC Berlin) it would have been a nice addition to my meagre CV to have been mentioned in a patent application. Perhaps I

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread Martin Leese
Richard Dobson wrote: ... So is this, in fact, the ultimate file format that folk on this list have been arguing for (and over) for so long? No, absolutely not. The fact that it has been patented means that it should not be used. The situation is similar the the GIF image file format. When

Re: [Sursound] Patent application: Data structure for HOA

2012-10-24 Thread etienne deleflie
So is this, in fact, the ultimate file format that folk on this list have been arguing for (and over) for so long? I dont know about ultimate formats ... but one existing format is Universal Ambisonic (UA). It is documented Here: http://soundofspace.com/static/make_ua_file And there is lots of