Displaying 20 results from an estimated 4000 matches similar to: "(Universal) Ambisonic implementation"
2015 Nov 30
2
Proposal for Ambisonics format in vorbis comment.
"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
2007 Mar 22
3
Code for Ambisonics
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.
2007 Sep 26
2
--keep-foreign-metadata question
Not sure if this belongs here or in flac-dev.
I am subscribed to both, so flop it over if fits
better over there.
Looking at the Changelog for FLAC 1.2.1
(17-Sep-2007), it says:
"With the new --keep-foreign-metadata in
flac, non-audio RIFF and AIFF chunks can
be stored in FLAC files and recreated when
decoding."
Where can I find more detail on what is a
2007 Apr 14
13
Ambisonics in Ogg Vorbis
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
2007 Apr 14
13
Ambisonics in Ogg Vorbis
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
2007 Mar 22
1
Code for Ambisonics
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
2007 Sep 26
1
--keep-foreign-metadata question
On 9/26/07, Josh Coalson <xflac@yahoo.com> wrote:
> --- Martin Leese <martin.leese@stanfordalumni.org> wrote:
...
> > Where can I find more detail on what is a
> > "non-audio" RIFF chunk?
>
> it is any riff chunk that is not "fmt " or "data"
>
> > Ambisonic ".amb" files are WAVE-EX files with
> > a
2009 Sep 21
3
(Universal) Ambisonic implementation
e deleflie <edeleflie at gmail.com>
...
> ok, I do realise that the extending the maximum channel count may be
> difficult ... there's gotta be a way to do it though.
Perhaps a comparison of the FLAC structure
with that of Vorbis will help.
Within a FLAC stream the audio is split into
blocks which are grouped (interleaved). But
within each block the eight channels are
chained
2007 Apr 18
1
Re: [ogg-dev] Ambisonics in Ogg Vorbis
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
2018 Oct 26
1
Proposal - Extended Channel Layouts in Opus
On 10/25/18, Rodger Combs wrote:
>
>> On Oct 25, 2018, at 12:47, Martin Leese <martin.leese at stanfordalumni.org>
>> wrote:
...
>> An alternative approach is to only define
>> popular layouts. For more obscure layouts,
>> such as 2.1 and Mid/Side, assume that the
>> person doing the encoding knew what they
>> put in, and so knows what will come
2009 Jun 28
6
Tidy up of XiphWiki VorbisComment page
I have been tidying up the VorbisComment
page in the XiphWiki. The problem with it was
that it was a mixture of proposals and
discussion of those proposals. This made it
difficult for implementers to see what to
implement.
The problem section is:
http://wiki.xiph.org/index.php/VorbisComment#New_ENCODER_field_name_proposal
This is a mess, and all I could do was add
attributions to the
2013 Jul 23
2
Metadata
On 7/23/13, Silvia Pfeiffer <silviapfeiffer1 at gmail.com> wrote:
> On 23 Jul 2013 15:17, "Martin Leese" <martin.leese at stanfordalumni.org>
> wrote:
...
>> Information about Metadata
>> has been collected together in the Xiph Wiki
>> at:
>> https://wiki.xiph.org/Metadata
>
> That page is a bit outdated. It has CMML in it which we
2007 Oct 21
3
OggPCM family
Erik de Castro Lopo <mle+xiph@mega-nerd.com> wrote:
> Martin Leese wrote:
> > So what is "OggPCM"? I started this thread
> > because I was puzzled why someone was
> > changing a draft instead of the document
> > itself.
>
> The original OggPCM was started by a person who really didn't
> lnow what they were doing and wouldn't listen to
2013 Jul 24
2
[OT] Tidy of Wiki Sidebar
I have been tidying up bits of the Wiki. This
one is not clear cut, so I decided to seek
advice. Also, I wasn't sure where to post this
question, so defaulted to ogg-dev.
Should Speex and CMML be removed from
the Wiki Sidebar at:
https://wiki.xiph.org/MediaWiki:Sidebar ?
Many thanks,
Martin
--
Martin J Leese
E-mail: martin.leese stanfordalumni.org
Web:
2013 Jul 23
2
Metadata
Brendan Bolles wrote:
> Hey everyone, according to Wikipedia's 4-year-old information, there is no
> standard for putting metadata into an Ogg file.
True.
> That metadata must be
> included in the codec.
More generally, in a stream in the Ogg file.
Codecs are streams, but so are things like
Ogg Skeleton. Information about Metadata
has been collected together in the Xiph Wiki
2018 Dec 11
2
New ID registration
"Kurosawa, Taku" wrote:
> Hi Martijn,
>
> Sorry for the late reply again,
> The application we are preparing this time is not exactly similar to
> Replaygain.
>
> Replaygain as we understand is something which normalize the loudness at
> content provider side, but our application takes different approach. It is
> designed to normalize the loudness at player
2018 Oct 25
2
Proposal - Extended Channel Layouts in Opus
Rodger Combs wrote:
> I've run into some issues using Opus with source files in channel layouts
> other than the default 8. For instance, 2.1 isn't supported, so I have to
> either downconvert to 2.0 or upconvert to 5.1 (which usually involves adding
> empty channels, which prevents the playback device from upconverting to the
> native layout).
> To address this,
2010 Dec 21
1
Please remove User, and delete their four posts from the archive
---------- Forwarded message ----------
From: Martin Leese <martin.leese at stanfordalumni.org>
Date: Mon, 20 Dec 2010 21:42:04 -0700
Subject:
To: flac-dev at xiph.org
Erik de Castro Lopo wrote:
> Can someone please remove this moron
> spammer [Gourav Tewatia] from this list.
And also delete their four posts from the
archive (otherwise the SPAM links will be
picked up by search
2013 Aug 09
1
[OT] Tidy of Wiki Sidebar
On August 9, 2013, Silvia Pfeiffer wrote:
> On Thu, Jul 25, 2013 at 6:36 AM, Martin Leese wrote:
...
>> Should Speex and CMML be removed from
>> the Wiki Sidebar
> Don't remove Speex - it's still very much in use.
>
> We probably want to add Daala to the list of video codecs:
> https://wiki.xiph.org/Daala
>
> We probably want to remove CCML from the
2009 Oct 06
3
Detecting FLAC file type
Shayne Wissler <wissler at gmail.com> wrote:
> I have a program that is given a random file and needs to determine
> whether it is Vorbis or FLAC. For Vorbis, there are various places
> where I can infer that I have a bad stream. But for FLAC, when I call
> either FLAC__stream_decoder_process_until_end_of_metadata or
> FLAC__stream_decoder_process_single, it searches the