similar to: (Universal) Ambisonic implementation

On Oct 4, 2009, at 16:48, James Cloos wrote: > I always thought that the best way to put ambisonic media in flac > was to > use an ogg container, with the 0-order w channel in one flac > stream, the > three first-order channels in a second flac stream, the five second- > order > channels in a third flac stream and the seven third-order channels > in a > forth flac

Hi Flac Developers, My name is Etienne Deleflie, I'm the founder of http://www.ambisonia.com and, more recently, http://soundofspace.com. Myself and the community I serve are looking for a lossless file format that can encapsulate ambisonic encoding. To this end a specification has been drafted, and is nearing stability, that describes practical features designed to get the most out of

Hi Josh, The minimum things that Flac would need to implement to satisfy the 'file implementations' part of the spec is a bit of metadata and the extensions to channel counts. ok, I do realise that the extending the maximum channel count may be difficult ... there's gotta be a way to do it though. Etienne On Mon, Sep 21, 2009 at 11:57 AM, Josh Coalson <xflac at yahoo.com>

--- On Thu, 9/17/09, e deleflie <edeleflie at gmail.com> wrote: > Hi Flac Developers, > > My name is Etienne Deleflie, I'm the founder of > http://www.ambisonia.com and, more recently, http://soundofspace.com. > > Myself and the community I serve are looking for a lossless file > format that can encapsulate ambisonic encoding. To this end a > specification has

All, Progress has been made on the proposed draft spec for integrating ambisonics into vorbis. We are not yet finished (should be soon), but you can see the progress here: http://docs.google.com/Doc?id=df4dtw69_3626qqq6st The issue we have hit now concerns how/who would implement the encoding and decoding in Vorbis Tools. Because ambisonics uses spherical harmonic components, an ambisonic file

Brian Willoughby <brianw at sounds.wa.com> > Isn't there a standard option to place FLAC data within an Ogg > container? I don't use it myself, but I understand that it is quite > popular. Would it be possible to interleave multiple FLAC blocks > this way? In other words, can Ogg suffice as the second level of > grouping that you refer to? Etienne was asking for

2008/9/25 e deleflie <edeleflie at gmail.com>: > Hi Vorbis-dev, > Hi, > I've been on this list for a couple of weeks, but its been quiet, so I > dont know who is who. > > My name is Etienne Deleflie, I am the creator of www.ambisonia.com, > and I am (together with the Ambisonic community) looking for a > 'delivery format' for Ambisonic data. > >

Where can I find the Header file or whatever which specifies the "Mapping" flag. In feb - apr 2007, there was a lot of discussion about Ambisonics and Monty kindly stated that Mapping = 1 ; Denotes and Ambisonic file as opposed to = 0 which is 1 speaker/ 1 channel Has this been written explicitly into the standard? Which standard should I be looking at?

All, Lets say I have a 16 channel file, but 10 of those channels are empty (all values are 0). For a) the vorbis codec and also b) the FLAC codec ... would the size of the file be close to (or practically the same as) the size of a 6 channel file? Etienne

Hi, I have posted this three times to the flac-dev, vorbis-dev, and ogg-dev mailing lists. I wanted to see what code there was currently to support Ambisonics. So I downloaded the code from the xiph download page for libogg-1.1.3, libvorbis-1.1.2, vorbis-tools-1.1.1 and flac-1.1.4, but wasn't able to find anything. If it exists then I missed it, so could somebody please point me to it.

It obviously would be nice to have such a mode available, for e.g. DVD audio compression. Apparently, the list doesn''t tell me too much about it. My questions are: 1. What is the current status of the 5.1 channel coupling in Vorbis? 2. If I''ll be interested in participation in its development, what is the recommended reading? -------------- next part -------------- An HTML

On 2/28/07, Ivo Emanuel Gon?alves <justivo@gmail.com> wrote: > On 2/28/07, Ralph Giles <giles@xiph.org> wrote: > > Well, there are todo pages at wiki.xiph.org, but I meant more in the > > community folklore sense. My point is a roadmap doesn't help much unless > > there are people committed to making things happen. That's been the > > problem with a

On 2/28/07, Ivo Emanuel Gon?alves <justivo@gmail.com> wrote: > On 2/28/07, Ralph Giles <giles@xiph.org> wrote: > > Well, there are todo pages at wiki.xiph.org, but I meant more in the > > community folklore sense. My point is a roadmap doesn't help much unless > > there are people committed to making things happen. That's been the > > problem with a

On 3/22/07, Brian Willoughby <brianw@sounds.wa.com> wrote: ... > But to return to your question, exactly what kind of "support" are > you looking for? I wasn't looking for any particular support, but just to see what support was there (if any). ... > I do not believe that there is any need for code specifically > supporting Ambisonics. FLAC supports conversion to

Tim, Would you mind giving me a more specific example of the sort of document that you think this should look like? I'd like to write up something that is somewhat final. On Mon, May 2, 2016 at 9:30 PM, Michael Graczyk <mgraczyk at google.com> wrote: > On Fri, Apr 29, 2016 at 4:32 PM, Timothy B. Terriberry > <tterribe at xiph.org> wrote: > > As a general point,

I made a few updates to OggPCM2 http://wiki.xiph.org/index.php/OggPCM2 reflecting the latest discussions. Could everyone have a look at it and see if they agree. Otherwise, what do you feel should be changed? Anyone wants to speak in support of chunked PCM? For all those that are just tired of this mess like me, please express yourself in the new spec I created: OggPCM3

"Gabriel I." wrote: > Greetings, > > I apologize if I posted this in the wrong list, I wasn't sure where to post > it, but seeing as the tags are called "vorbis comments" I thought vorbis, > rather than ogg-dev, would be the right choice. (actually, I'm not even a > developer anyway) Hi Gabriel, I doubt whether the Xiph community would promote a

Ian Malone <ibmalone@gmail.com> wrote: > It depends what your aim is. The mapping type > in the vorbis setup header is meant for > this[1],[2]. Of course a nonzero mapping type will > cause a lot of players to give up, but so will > including the XML stream. I believe this is how > is was intended multi-channel would be handled. Thanks for the response, and for the

Hello Tim and others, Thanks for your help explaining this process on IRC. I wrote out a first draft in the RFC xml format. I have attached the xml (labeled as xml.txt so it will appear inline) and the rendered txt files. Please let me know where I can make improvements. I will upload this draft to the IETF datatracker and send it out to codec@ after addressing your comments. -------------- next

The prospect of people actually putting B-format audio (via the panner or directly input) into Ogg/Vorbis brings an interesting challenge: What do we do with the audio after decoding it? The following sane options exist: A) Simply output the B-format audio B) Produce a downmix 1) Mono. 2) Stereo blumlein crossed pairs 3) Stereo UHJ 4) binaural C) Produce speaker feeds 1) Fully