Re: [Sursound] online multichannel release: HTML5 test

[etienne deleflie]

Bill,

I was expecting that Firefox would not attempt to play the file at all ...
strange that it attempts to play the file at all.

What happens if you go to this URL in firefox:

http://audio.soundofspace.com/ajh/eight-directions.ac3

Etienne

On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:

> Latest version of Firefox (8.0) on Win7 64bit.
> Alls I get it the spinning dots when I press play.
> Nothing else.
> No sound.
>
> Bill
>
>
> On 26/11/11 8:08 p.m., etienne deleflie wrote:
>
>> I've been meaning to try out HTML5's capabilities for a while, now seems a
>> good time.
>>
>> http://soundofspace.com/**static/test_html5.html<http://soundofspace.com/static/test_html5.html>
>>
>> This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
>> using HTML5 the browser should automatically choose the one it can
>> support.
>>
>> InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
>> that
>> covers around 50% of browsers. BUT ... it also covers the two main OSes.
>>
>> Firefox is the other 50% ... and that means Ogg ... not sure if firefox
>> supports AC3 but I dont think it does.
>>
>> The only question is whether or not the Browser can successfully stream
>> the
>> 5.1 channels to the sound card connected to multiple speakers.
>>
>> ... any reports of success or failure would be appreciated.
>>
>> Etienne
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Re: [Sursound] online multichannel release: HTML5 test

[etienne deleflie]

I've now replaced the AC3 with a 5.1 Ogg Vorbis file.

http://soundofspace.com/static/test_html5.html

Firefox now reads it. Unfortunately, Firefox apparently cant play 5.1 files
... so it just plays the first two channels. Rather disappointing ...
especially given that Chrome seems to be able to play the 5.1 Ogg file just
fine.

Here's the Firefox Bugzilla report (lodged in 2009) about firefox not being
able to play 5.1 Vorbis files:
https://bugzilla.mozilla.org/show_bug.cgi?id=521615

So the best bet is just AAC.

Etienne



On Sun, Nov 27, 2011 at 7:43 PM, etienne deleflie wrote:

> Bill,
>
> I was expecting that Firefox would not attempt to play the file at all ...
> strange that it attempts to play the file at all.
>
> What happens if you go to this URL in firefox:
>
> http://audio.soundofspace.com/ajh/eight-directions.ac3
>
> Etienne
>
> On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:
>
>> Latest version of Firefox (8.0) on Win7 64bit.
>> Alls I get it the spinning dots when I press play.
>> Nothing else.
>> No sound.
>>
>> Bill
>>
>>
>> On 26/11/11 8:08 p.m., etienne deleflie wrote:
>>
>>> I've been meaning to try out HTML5's capabilities for a while, now seems
>>> a
>>> good time.
>>>
>>> http://soundofspace.com/**static/test_html5.html<http://soundofspace.com/static/test_html5.html>
>>>
>>> This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
>>> using HTML5 the browser should automatically choose the one it can
>>> support.
>>>
>>> InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
>>> that
>>> covers around 50% of browsers. BUT ... it also covers the two main OSes.
>>>
>>> Firefox is the other 50% ... and that means Ogg ... not sure if firefox
>>> supports AC3 but I dont think it does.
>>>
>>> The only question is whether or not the Browser can successfully stream
>>> the
>>> 5.1 channels to the sound card connected to multiple speakers.
>>>
>>> ... any reports of success or failure would be appreciated.
>>>
>>> Etienne
>>> -- next part --
>>> An HTML attachment was scrubbed...
>>> URL:<https://mail.music.vt.**edu/mailman/private/sursound/**
>>> attachments/2027/ae3fafc3/**attachment.html<https://mail.music.vt.edu/mailman/private/sursound/attachments/2027/ae3fafc3/attachment.html>
>>> >
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>>>
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>>
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Re: [Sursound] online multichannel release: HTML5 test

[Paul Hodges]

--On 27 November 2011 15:08 +1100 etienne deleflie  
wrote:



http://soundofspace.com/static/test_html5.html
... any reports of success or failure would be appreciated.


It plays fine in the current version of Opera on Windows 7 x64 (I haven't 
tried to see which codec it's using, and I haven't told my system anything 
about surround, so it plays in stereo).


Paul

--
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Re: [Sursound] online multichannel release

[Oliver Oli]

I don't understand the long discussion on this list. quad surround is
a standard supported by many audio codecs. mp3 is not an option, even
mp3 surround is not discrete 5.1. the most common formats for
multi-channel audio are aac, ogg/vorbis and flac. the default aac
mapping for 4 channels is not quad, but center, left, right, rear
surround, but there should be ways to define it as quadraphonic. in
flac and ogg/vorbis a 4 channel file is defined as quadraphonic with
the channel mapping front left, front right, rear left, rear right.

I don't know how good the support for quad playback in the most common
media players is, but there are not much options besides aac, vorbis
and flac that are commonly supported.

11/25/11, Marinos Koutsomichalis  wrote:
> Hello list,
>
> I was asked a 4-channel work for an online-release - I' m now trying to
> figure out what the best way to "release" it would be..
>
> I am totally inexperienced in web-friendly file formats for such things..
>
> afaic
> - I could use mp3-surround -> but it' s only 5.1 and this could possibly
> cause problems
> - I could use flac -> but I' m not sure if common media-players support it
> - I could try some video format (?)
>
> are there any other ideas/observations/advices ??
>
> what is paramount is that the casual listener can listen to the 4-channel
> mix without having to download nothing or in the worst scenario to download
> some specialized media-player which is flexible/easy to find and free.
>
> maybe there is specialized file-format/media-player or some lossy ambisonics
> formats for such things ??
>
> --
> Marinos Koutsomichalis
> Music Research Center, University of York
> Contemporary Music Research Centre (CMRC)
> www.marinoskoutsomichalis.com
> www.agxivatein.com
> skype: marinosk_81
>
>
>
>
>
>
>
>
>
>
>
>
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Re: [Sursound] online multichannel release: HTML5 test

[Oliver Oli]

I don't see the player in webos, because the browser doesn't show any
default controls (but audio and video with custom controls work). my
tablet wouldn't play surround sound, but I was interested if it plays
embedded 5.1 files at all.

you can offer multiple formats in an audio or video tag.

see https://developer.mozilla.org/En/Using_audio_and_video_in_Firefox

 11/27/11, etienne deleflie  wrote:
> I've now replaced the AC3 with a 5.1 Ogg Vorbis file.
>
> http://soundofspace.com/static/test_html5.html
>
> Firefox now reads it. Unfortunately, Firefox apparently cant play 5.1 files
> ... so it just plays the first two channels. Rather disappointing ...
> especially given that Chrome seems to be able to play the 5.1 Ogg file just
> fine.
>
> Here's the Firefox Bugzilla report (lodged in 2009) about firefox not being
> able to play 5.1 Vorbis files:
> https://bugzilla.mozilla.org/show_bug.cgi?id=521615
>
> So the best bet is just AAC.
>
> Etienne
>
>
>
> On Sun, Nov 27, 2011 at 7:43 PM, etienne deleflie
> wrote:
>
>> Bill,
>>
>> I was expecting that Firefox would not attempt to play the file at all ...
>> strange that it attempts to play the file at all.
>>
>> What happens if you go to this URL in firefox:
>>
>> http://audio.soundofspace.com/ajh/eight-directions.ac3
>>
>> Etienne
>>
>> On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:
>>
>>> Latest version of Firefox (8.0) on Win7 64bit.
>>> Alls I get it the spinning dots when I press play.
>>> Nothing else.
>>> No sound.
>>>
>>> Bill
>>>
>>>
>>> On 26/11/11 8:08 p.m., etienne deleflie wrote:
>>>
>>>> I've been meaning to try out HTML5's capabilities for a while, now seems
>>>> a
>>>> good time.
>>>>
>>>> http://soundofspace.com/**static/test_html5.html<http://soundofspace.com/static/test_html5.html>
>>>>
>>>> This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
>>>> using HTML5 the browser should automatically choose the one it can
>>>> support.
>>>>
>>>> InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
>>>> that
>>>> covers around 50% of browsers. BUT ... it also covers the two main OSes.
>>>>
>>>> Firefox is the other 50% ... and that means Ogg ... not sure if firefox
>>>> supports AC3 but I dont think it does.
>>>>
>>>> The only question is whether or not the Browser can successfully stream
>>>> the
>>>> 5.1 channels to the sound card connected to multiple speakers.
>>>>
>>>> ... any reports of success or failure would be appreciated.
>>>>
>>>> Etienne
>>>> -- next part --
>>>> An HTML attachment was scrubbed...
>>>> URL:<https://mail.music.vt.**edu/mailman/private/sursound/**
>>>> attachments/2027/ae3fafc3/**attachment.html<https://mail.music.vt.edu/mailman/private/sursound/attachments/2027/ae3fafc3/attachment.html>
>>>> >
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>>>> Sursound@music.vt.edu
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>>>>
>>>>
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>>>
>>
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Re: [Sursound] Can anyone having ISO 9613-1 check this ?

[Fons Adriaensen]

On Sun, Nov 27, 2011 at 03:09:15PM +0800, Junfeng Li wrote:

> According to the following paper, theh = r * powf (10.0f, C) / p should
> be correct, where p = P_s/P_{s0}, the relative pressure.
> 
> Benjamin Bernfeld, "Absorption of sound by air: a personal calculator
> program," J. AES, vo. 28, 1980.

This is confirmed by all the other replies I've got.
Thanks to all !

The code in the first post of *this* thread is actually
the corrected version of the algorithm defined in ISO
9613-1, you can ignore the warning.

The change only affects results for non-standard 
ambient pressure.

Ciao,

-- 
FA

Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl.

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Re: [Sursound] online multichannel release: HTML5 test

[Bill de Garis]

Ahh!
That's nice!
It asks if I want to play with VLC and then it sounds very nice even in stereo (which is 
all I have on my pc).
I actually get a strong sense out to about 180 deg either side of me whereas my (cheap 
studio reference) monitors are either side of my screen. (all the physical space I 
have). About 70 deg apart.


Bill

On 27/11/11 12:43 a.m., etienne deleflie wrote:

Bill,

I was expecting that Firefox would not attempt to play the file at all ...
strange that it attempts to play the file at all.

What happens if you go to this URL in firefox:

http://audio.soundofspace.com/ajh/eight-directions.ac3

Etienne

On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:


Latest version of Firefox (8.0) on Win7 64bit.
Alls I get it the spinning dots when I press play.
Nothing else.
No sound.

Bill


On 26/11/11 8:08 p.m., etienne deleflie wrote:


I've been meaning to try out HTML5's capabilities for a while, now seems a
good time.

http://soundofspace.com/**static/test_html5.html<http://soundofspace.com/static/test_html5.html>

This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
using HTML5 the browser should automatically choose the one it can
support.

InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
that
covers around 50% of browsers. BUT ... it also covers the two main OSes.

Firefox is the other 50% ... and that means Ogg ... not sure if firefox
supports AC3 but I dont think it does.

The only question is whether or not the Browser can successfully stream
the
5.1 channels to the sound card connected to multiple speakers.

... any reports of success or failure would be appreciated.

Etienne
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Re: [Sursound] online multichannel release: HTML5 test

[Bill de Garis]

Well it's an improvement of sorts...
It opens the player, downloads and begins to play the file, then plays to the 
end.
(Streams fine)
Just one problem, heh, no sound!

Bill

On 27/11/11 2:20 a.m., etienne deleflie wrote:

I've now replaced the AC3 with a 5.1 Ogg Vorbis file.

http://soundofspace.com/static/test_html5.html

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[Sursound] Greetings (and a newcomer's first submission)

[Eric Carmichel]

Greetings to all:
I am an Audio Production Technology student in the USA. I am also a hearing 
scientist with a few modest credentials under my belt. I am, however, new to 
Ambisonics.
I have been an audio enthusiast for most of my life. My current research 
interests include cochlear implants and the possibility of creating 
“real-world” virtual listening environments for studying hearing aid and 
cochlear implant efficacy in a variety of noisy and moderately quiet 
environments.
I see the potential of Ambisonics as a research tool for my research and 
hearing scientists in general; consequently, I created a new website = 
cochlearconcepts.com. Ambisonics isn’t nearly as well known in the US as it is 
in Europe--at least this is my perception. I have communicated with Bengt-Inge 
Dalenbäck (CATT-Acoustic) and Dr. Pauli Minnaar (Oticon)--both of them kindly 
directed me to useful resources.
My first project is to record restaurants and coffee houses using a Core Sound 
TetraMic and then play these back through an 8-speaker, horizontal-only 
circular configuration (r = 1.4 m). I could just as easily stagger the speakers 
so that they provide both vertical and horizontal information (would this be an 
efficient use of eight speakers?). I plan to decode the raw (A-Format files) 
via VVMic software (along with the calibration files provided with my 
TetraMic), and then process the B-format files offline using MATLAB. My 
preferred DAW for the Windows OS is Nuendo.
My new website (www.cochlearconcepts.com) shows a portion of my research 
arsenal. My loudspeaker inventory consists of ten carefully matched KRK passive 
monitors (they are the older KRK speakers using Focal woofers). I have an 
Edirol/Roland R-4 Pro four-track digital recorder for live recording, and a 
MOTU 896HD interface for playback. Because I am new to Ambisonics, any 
critique, leads to resources, and “moral support” are welcome.
Many thanks for your time: I appreciate your taking the time to read this.
Kind regards,
Eric
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Re: [Sursound] Can anyone having ISO 9613-1 check this ?

[Aaron Heller]

For what it's worth, there a implementation in the MATLAB file
exchange with a comment claiming that it is an accurate implementation
of ISO9613-1. See
  
http://www.mathworks.com/matlabcentral/fileexchange/6000-atmospheric-attenuation-of-sound

It cites
%   Bass, et al., "Journal of Acoustical Society of
America", (97) pg 680, January 1995.
%   Bass, et al., "Journal of Acoustical Society of
America", (99) pg 1259, February 1996.
%   Kinsler, et al., "Fundamentals of Acoustics", 4th ed.,
pg 214, John Wiley & Sons, 2000.

Aaron
--
Aaron Heller 
Menlo Park, CA  US
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Re: [Sursound] Greetings (and a newcomer's first submission)

[Michael Chapman]

> Greetings to all:

Welcome to the list.


> My first project is to record restaurants and coffee houses using a Core
> Sound TetraMic and then play these back through an 8-speaker,
> horizontal-only circular configuration (r = 1.4 m). I could just as easily
> stagger the speakers so that they provide both vertical and horizontal
> information (would this be an efficient use of eight speakers?).

Well, the TetraMic is giving you three-dimensional info and your are
reproducing in 2-D.

The TetraMic (or any common ambisonic mic, for that matter) is
only giving you first order ambisonics.
Four loudspeakers should be enough to reproduce that in a
horizontal plane (pantophony).
Some users say that six speakers give them a better result ...

Eight speakers (arranged in 3-D) can give you full 3-D (periphony)
on first order material.

My bias is to go for height.
Even with four speakers, I like to experiment with four frontal
speakers (UL, UR, DL, DR) sometimes  but I think that is a
very personal 'bias' ;-)>
The mechanics of creating cubes (or cuboids) is considerably
different from creating horizontal rigs, though.

You will hear some good science on this list.
You will also hear much personal opinion.
Pay attention to the former and join the latter by experimenting
yourself!

Best wishes for your project,

Michael


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Re: [Sursound] online multichannel release: HTML5 test

[Garth Paine]

Thats very interesting - thanks.  It works remarkably well in Chrome, listening 
on stereo (iPhone) headphones on my MacbookAir

Cheers

Garth

http://www.activatedspace.com
http://www.syncsonics.com



On 27/11/2011, at 3:20 AM, etienne deleflie wrote:

> I've now replaced the AC3 with a 5.1 Ogg Vorbis file.
> 
> http://soundofspace.com/static/test_html5.html
> 
> Firefox now reads it. Unfortunately, Firefox apparently cant play 5.1 files
> ... so it just plays the first two channels. Rather disappointing ...
> especially given that Chrome seems to be able to play the 5.1 Ogg file just
> fine.
> 
> Here's the Firefox Bugzilla report (lodged in 2009) about firefox not being
> able to play 5.1 Vorbis files:
> https://bugzilla.mozilla.org/show_bug.cgi?id=521615
> 
> So the best bet is just AAC.
> 
> Etienne
> 
> 
> 
> On Sun, Nov 27, 2011 at 7:43 PM, etienne deleflie wrote:
> 
>> Bill,
>> 
>> I was expecting that Firefox would not attempt to play the file at all ...
>> strange that it attempts to play the file at all.
>> 
>> What happens if you go to this URL in firefox:
>> 
>> http://audio.soundofspace.com/ajh/eight-directions.ac3
>> 
>> Etienne
>> 
>> On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:
>> 
>>> Latest version of Firefox (8.0) on Win7 64bit.
>>> Alls I get it the spinning dots when I press play.
>>> Nothing else.
>>> No sound.
>>> 
>>> Bill
>>> 
>>> 
>>> On 26/11/11 8:08 p.m., etienne deleflie wrote:
>>> 
>>>> I've been meaning to try out HTML5's capabilities for a while, now seems
>>>> a
>>>> good time.
>>>> 
>>>> http://soundofspace.com/**static/test_html5.html<http://soundofspace.com/static/test_html5.html>
>>>> 
>>>> This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
>>>> using HTML5 the browser should automatically choose the one it can
>>>> support.
>>>> 
>>>> InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
>>>> that
>>>> covers around 50% of browsers. BUT ... it also covers the two main OSes.
>>>> 
>>>> Firefox is the other 50% ... and that means Ogg ... not sure if firefox
>>>> supports AC3 but I dont think it does.
>>>> 
>>>> The only question is whether or not the Browser can successfully stream
>>>> the
>>>> 5.1 channels to the sound card connected to multiple speakers.
>>>> 
>>>> ... any reports of success or failure would be appreciated.
>>>> 
>>>> Etienne
>>>> -- next part --
>>>> An HTML attachment was scrubbed...
>>>> URL:<https://mail.music.vt.**edu/mailman/private/sursound/**
>>>> attachments/2027/ae3fafc3/**attachment.html<https://mail.music.vt.edu/mailman/private/sursound/attachments/2027/ae3fafc3/attachment.html>
>>>>> 
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>>>> 
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Re: [Sursound] Greetings (and a newcomer's first submission)

[Fons Adriaensen]

On Sun, Nov 27, 2011 at 06:52:44PM -, Michael Chapman wrote:
 
> Well, the TetraMic is giving you three-dimensional info and your are
> reproducing in 2-D.
> 
> The TetraMic (or any common ambisonic mic, for that matter) is
> only giving you first order ambisonics.
> Four loudspeakers should be enough to reproduce that in a
> horizontal plane (pantophony).
> Some users say that six speakers give them a better result ...

The difference between 4 or 6 for 1st order horizontal is
a matter of debate/taste, but 8 is probably too much.

As Michael points out, you can have 3-D first order with
8 speakers, either a cube or one of the bi-rectangle
layouts. If you are going to reproduce only 1st order
material I'd certainly recommend one of those over using
8 speakers for horizontal only.

Ciao,

-- 
FA

Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl.

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Re: [Sursound] Greetings (and a newcomer's first submission)

[Newmedia]

Eric:
 
As others have mentioned, a hexagon often does a better job of reproducing  
the 2D "ambience," as I discovered when I started experimenting with 
Ambisonics  at sports-car races.
 
If you really want to be "surrounded" you can even get to a compelling  
experience of 3D with a Tetramic -- my preference is for 2x "squares" with one  
horizontal and another vertical and you sitting in the middle.  This works  
better than a "flat" cube in my own experiments.  So, instead of having 4x  
speakers "down" and 4x "up," there are 4x in the normal plane and 2x each 
on the  floor and the ceiling at the "side" positions.
 
All that said, you will NOT be happy with the "stage" that any of this  
presents.  If there is actually a "focus" of the sound, like for a  
performance, for instance, then you will have to ADD "stereo" to the mix.
 
Since one of the most compelling "stereo" setups is called Ambiophonics,  
adding that to 3D Ambisonics = Robin Miller's HSD-3D and it is *really*  
satisfying for the right material!
 
Mark Stahlman
Brooklyn NY
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Re: [Sursound] online multichannel release: HTML5 test

[etienne deleflie]

On Sun, Nov 27, 2011 at 11:51 PM, Oliver Oli wrote:

> I don't see the player in webos, because the browser doesn't show any
> default controls (but audio and video with custom controls work). my
> tablet wouldn't play surround sound, but I was interested if it plays
> embedded 5.1 files at all.
>
> you can offer multiple formats in an audio or video tag.
>


if you do a 'view source' you'll see that I'm offering 3 formats ... AAC,
AC3 and Vorbis

Etienne


>
> see https://developer.mozilla.org/En/Using_audio_and_video_in_Firefox
>
>  11/27/11, etienne deleflie  wrote:
> > I've now replaced the AC3 with a 5.1 Ogg Vorbis file.
> >
> > http://soundofspace.com/static/test_html5.html
> >
> > Firefox now reads it. Unfortunately, Firefox apparently cant play 5.1
> files
> > ... so it just plays the first two channels. Rather disappointing ...
> > especially given that Chrome seems to be able to play the 5.1 Ogg file
> just
> > fine.
> >
> > Here's the Firefox Bugzilla report (lodged in 2009) about firefox not
> being
> > able to play 5.1 Vorbis files:
> > https://bugzilla.mozilla.org/show_bug.cgi?id=521615
> >
> > So the best bet is just AAC.
> >
> > Etienne
> >
> >
> >
> > On Sun, Nov 27, 2011 at 7:43 PM, etienne deleflie
> > wrote:
> >
> >> Bill,
> >>
> >> I was expecting that Firefox would not attempt to play the file at all
> ...
> >> strange that it attempts to play the file at all.
> >>
> >> What happens if you go to this URL in firefox:
> >>
> >> http://audio.soundofspace.com/ajh/eight-directions.ac3
> >>
> >> Etienne
> >>
> >> On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:
> >>
> >>> Latest version of Firefox (8.0) on Win7 64bit.
> >>> Alls I get it the spinning dots when I press play.
> >>> Nothing else.
> >>> No sound.
> >>>
> >>> Bill
> >>>
> >>>
> >>> On 26/11/11 8:08 p.m., etienne deleflie wrote:
> >>>
> >>>> I've been meaning to try out HTML5's capabilities for a while, now
> seems
> >>>> a
> >>>> good time.
> >>>>
> >>>> http://soundofspace.com/**static/test_html5.html<
> http://soundofspace.com/static/test_html5.html>
> >>>>
> >>>> This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
> >>>> using HTML5 the browser should automatically choose the one it can
> >>>> support.
> >>>>
> >>>> InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
> >>>> that
> >>>> covers around 50% of browsers. BUT ... it also covers the two main
> OSes.
> >>>>
> >>>> Firefox is the other 50% ... and that means Ogg ... not sure if
> firefox
> >>>> supports AC3 but I dont think it does.
> >>>>
> >>>> The only question is whether or not the Browser can successfully
> stream
> >>>> the
> >>>> 5.1 channels to the sound card connected to multiple speakers.
> >>>>
> >>>> ... any reports of success or failure would be appreciated.
> >>>>
> >>>> Etienne
> >>>> -- next part --
> >>>> An HTML attachment was scrubbed...
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> >>>> attachments/2027/ae3fafc3/**attachment.html<
> https://mail.music.vt.edu/mailman/private/sursound/attachments/2027/ae3fafc3/attachment.html
> >
> >>>> >
> >>>> __**_
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> >>>> Sursound@music.vt.edu
> >>>> https://mail.music.vt.edu/**mailman/listinfo/sursound<
> https://mail.music.vt.edu/mailman/listinfo/sursound>
> >>>>
> >>>>
> >>>>  __**_
> >>> Sursound mailing list
> >>> Sursound@music.vt.edu
> >>> https://mail.music.vt.edu/**mailman/listinfo/sursound<
> https://mail.music.vt.edu/mailman/listinfo/sursound>
> >>>
> >>
> >>
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> > ___
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Re: [Sursound] online multichannel release: HTML5 test

[etienne deleflie]

On Mon, Nov 28, 2011 at 2:18 AM, Bill de Garis  wrote:

> Ahh!
> That's nice!
> It asks if I want to play with VLC and then it sounds very nice even in
> stereo (which is all I have on my pc).
>

ah ok ... so it is worth including Vorbis then.

Etienne


> I actually get a strong sense out to about 180 deg either side of me
> whereas my (cheap studio reference) monitors are either side of my screen.
> (all the physical space I have). About 70 deg apart.
>
> Bill
>
>
> On 27/11/11 12:43 a.m., etienne deleflie wrote:
>
>> Bill,
>>
>> I was expecting that Firefox would not attempt to play the file at all ...
>> strange that it attempts to play the file at all.
>>
>> What happens if you go to this URL in firefox:
>>
>> http://audio.soundofspace.com/**ajh/eight-directions.ac3<http://audio.soundofspace.com/ajh/eight-directions.ac3>
>>
>> Etienne
>>
>> On Sun, Nov 27, 2011 at 6:21 PM, Bill de Garis  wrote:
>>
>>  Latest version of Firefox (8.0) on Win7 64bit.
>>> Alls I get it the spinning dots when I press play.
>>> Nothing else.
>>> No sound.
>>>
>>> Bill
>>>
>>>
>>> On 26/11/11 8:08 p.m., etienne deleflie wrote:
>>>
>>>  I've been meaning to try out HTML5's capabilities for a while, now
>>>> seems a
>>>> good time.
>>>>
>>>> http://soundofspace.com/static/test_html5.html<http://soundofspace.com/**static/test_html5.html>
>>>> <http://**soundofspace.com/static/test_**html5.html<http://soundofspace.com/static/test_html5.html>
>>>> >
>>>>
>>>>
>>>> This page hosts an (ambisonicaly decoded) 5.1 file in AAC and AC3 
>>>> using HTML5 the browser should automatically choose the one it can
>>>> support.
>>>>
>>>> InternetExplorer 9 supports AAC, so does Safari and so does Chrome. So
>>>> that
>>>> covers around 50% of browsers. BUT ... it also covers the two main OSes.
>>>>
>>>> Firefox is the other 50% ... and that means Ogg ... not sure if firefox
>>>> supports AC3 but I dont think it does.
>>>>
>>>> The only question is whether or not the Browser can successfully stream
>>>> the
>>>> 5.1 channels to the sound card connected to multiple speakers.
>>>>
>>>> ... any reports of success or failure would be appreciated.
>>>>
>>>> Etienne
>>>> -- next part --
>>>> An HTML attachment was scrubbed...
>>>> URL:<https://mail.music.vt.edu/mailman/private/sursound/
>>>> attachments/2027/ae3fafc3/attachment.html<https://**
>>>> mail.music.vt.edu/mailman/**private/sursound/attachments/**
>>>> 2027/ae3fafc3/attachment.**html<https://mail.music.vt.edu/mailman/private/sursound/attachments/2027/ae3fafc3/attachment.html>
>>>> >
>>>>
>>>>>
>>>>>  _______
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>>>> https://mail.music.vt.edu/mailman/listinfo/sursound>
>>>> >
>>>>
>>>>
>>>>  ___
>>>>
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>>> >
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>> >
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Re: [Sursound] online multichannel release

[Richard G Elen]

On 27/11/2011 00:31, Sampo Syreeni wrote:
I'd say one of the AAC profiles would still be preferrable, because 
it's eminently better as a codec, at least as well-supported by now 
especially in the online world, and probably more future-proof, having 
been adopted by big players like Apple. 


AAC is certainly an excellent codec; but can you easily play back a quad 
file...? I really don't know.


I DO know VLC plays DTS straight out of the box.

re licensing, you buy the encoding app and you're done. Again, with AAC 
I don't know.


So there's the simple, known-to-work; and the possibly-better, 
possibly-not, unknown. Your choice.


--R


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Re: [Sursound] online multichannel release

[John Leonard]

So it does! DTS file in VLC, Metric Halo 2882 (or WHY) and streaming surround 
direct form the laptop!

Excellent - thanks, Richard.

DiscWelder Bronze will do the encoding; nice and cheap, too.

Regards,

John


On 27 Nov 2011, at 23:51, Richard G Elen wrote:

> I DO know VLC plays DTS straight out of the box.

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Re: [Sursound] online multichannel release

[etienne deleflie]

>
>
> AAC is certainly an excellent codec; but can you easily play back a quad
> file...? I really don't know.
>
> I DO know VLC plays DTS straight out of the box.
>

The only issue with DTS files is that they are large ... and so not so good
for online distribution.

An advantage you get with DTS files is you can burn Audio CDs that are
readily decodable by most DVD players

I think VLC will play almost all of the well known 5.1-ish formats ... but
it has to be downloaded and installed.

AAC is supported in both the main OSes bundled browser  Safari and IE9
+ ... its easy to route channels to a soundcard in OSX ... but I'm not so
sure about Windows + IE9 routing multi-channel AAC to a soundcard ...
that's what I would like to hear about.

Etienne


>
> re licensing, you buy the encoding app and you're done. Again, with AAC I
> don't know.
>
> So there's the simple, known-to-work; and the possibly-better,
> possibly-not, unknown. Your choice.
>
> --R
>
>
>
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