Re: [Sursound] Orah

2016-04-10 Thread Dave Hunt

Hi,

Compare Orah with Jaunt.

https://www.jauntvr.com/technology/

Large price difference. Jaunt has many more cameras. No microphone  
built in. Have seen it used with what looked like one of Len's Core  
Sound microphones and a Tascam recorder.


There aren't many places to hide microphones with cameras like these.

Ciao,

Dave Hunt



From: Marc Lavallee 
Date: 8 April 2016 19:00:24 BDT
To: sursound@music.vt.edu
Subject: [Sursound] Orah



Finally, a 3D camera with an integrated FOA microphone?
https://www.orah.co/tech-specs/

https://www.orah.co/about/ :
"In addition, the ambisonic 3D sound capture capabilities of Orah
enable the viewer of the content to locate the origin of the sound
source with a VR headset, bringing the feeling of immersion to a
stunning new level."

https://www.orah.co/ :
Looking at the pictures and captions, it says: "Immersive Sound, Four
high dynamic-range microphones for ambisonic 3D sound". The capsules
(or mems?) look soldered on the sides of PC boards, listening through
holes.

--
Marc




From: Jörn Nettingsmeier 
Date: 8 April 2016 22:26:50 BDT
To: sursound@music.vt.edu
Subject: Re: [Sursound] Orah


On 04/08/2016 08:00 PM, Marc Lavallee wrote:


Finally, a 3D camera with an integrated FOA microphone?
https://www.orah.co/tech-specs/

https://www.orah.co/about/ :
"In addition, the ambisonic 3D sound capture capabilities of Orah
enable the viewer of the content to locate the origin of the sound
source with a VR headset, bringing the feeling of immersion to a
stunning new level."

https://www.orah.co/ :
Looking at the pictures and captions, it says: "Immersive Sound, Four
high dynamic-range microphones for ambisonic 3D sound". The capsules
(or mems?) look soldered on the sides of PC boards, listening through
holes.


very far apart, with body resonances that i don't want to imagine.
hate to be negative about so much exciting new tech, but "stick  
n>=4 cheap capsules somewhere and call it ambisonic" seems  
questionable to me. simple truth of the matter is that as long as  
video techs add mics as an afterthought, the results are going to  
suck, badly.



--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487

Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT

http://stackingdwarves.net


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Re: [Sursound] Orah

2016-04-10 Thread Marc Lavallée
On Sun, 10 Apr 2016 13:22:05 +0100,
Dave Hunt  wrote :
> Compare Orah with Jaunt.
> 
> https://www.jauntvr.com/technology/
> 
> Large price difference. Jaunt has many more cameras. 

For more horizontal resolution.

> No microphone   built in. Have seen it used with what looked like one
> of Len's Core Sound microphones and a Tascam recorder.

https://www.jauntvr.com/jaunt-one/ :
"360° audio is supported through ambisonic field recordings, or in post
using the Dolby ATMOS** toolset"

> There aren't many places to hide microphones with cameras like these.

I would put the microphone under the camera, keeping some distance in
between so they don't interfere too much, using a special microphone
holder in the form of a camera holder, built as a kind of tripod
extension. A drawing would help... 
--
Marc

> Ciao,
> 
> Dave Hunt
> 
> 
> > From: Marc Lavallee 
> > Date: 8 April 2016 19:00:24 BDT
> > To: sursound@music.vt.edu
> > Subject: [Sursound] Orah
> >
> >
> >
> > Finally, a 3D camera with an integrated FOA microphone?
> > https://www.orah.co/tech-specs/
> >
> > https://www.orah.co/about/ :
> > "In addition, the ambisonic 3D sound capture capabilities of Orah
> > enable the viewer of the content to locate the origin of the sound
> > source with a VR headset, bringing the feeling of immersion to a
> > stunning new level."
> >
> > https://www.orah.co/ :
> > Looking at the pictures and captions, it says: "Immersive Sound,
> > Four high dynamic-range microphones for ambisonic 3D sound". The
> > capsules (or mems?) look soldered on the sides of PC boards,
> > listening through holes.
> >
> > --
> > Marc
> >
> >
> >
> >
> > From: Jörn Nettingsmeier 
> > Date: 8 April 2016 22:26:50 BDT
> > To: sursound@music.vt.edu
> > Subject: Re: [Sursound] Orah
> >
> >
> > On 04/08/2016 08:00 PM, Marc Lavallee wrote:
> >>
> >> Finally, a 3D camera with an integrated FOA microphone?
> >> https://www.orah.co/tech-specs/
> >>
> >> https://www.orah.co/about/ :
> >> "In addition, the ambisonic 3D sound capture capabilities of Orah
> >> enable the viewer of the content to locate the origin of the sound
> >> source with a VR headset, bringing the feeling of immersion to a
> >> stunning new level."
> >>
> >> https://www.orah.co/ :
> >> Looking at the pictures and captions, it says: "Immersive Sound,
> >> Four high dynamic-range microphones for ambisonic 3D sound". The
> >> capsules (or mems?) look soldered on the sides of PC boards,
> >> listening through holes.
> >
> > very far apart, with body resonances that i don't want to imagine.
> > hate to be negative about so much exciting new tech, but "stick  
> > n>=4 cheap capsules somewhere and call it ambisonic" seems  
> > questionable to me. simple truth of the matter is that as long as  
> > video techs add mics as an afterthought, the results are going to  
> > suck, badly.
> >
> >
> > -- 
> > Jörn Nettingsmeier
> > Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
> >
> > Meister für Veranstaltungstechnik (Bühne/Studio)
> > Tonmeister VDT
> >
> > http://stackingdwarves.net
> 
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Re: [Sursound] Ambisonics for Android and also Oculus..

2016-04-10 Thread Courville, Daniel
Le 16-04-05 07:05, Courville, Daniel a écrit :

>Le 16-04-04 17:42, Courville, Daniel a écrit :
>
>>So it seems that there's a gain error in the O channel of the ambiX converter.
>
>There will be a new release of ambiX in a few days fixing this problem.

The new version is now available: http://www.matthiaskronlachner.com/?p=2015

Thanks Matthias!
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Re: [Sursound] Orah

2016-04-10 Thread Stefan Schreiber

Marc Lavallee wrote:


Finally, a 3D camera with an integrated FOA microphone?
https://www.orah.co/tech-specs/

https://www.orah.co/about/ :
"In addition, the ambisonic 3D sound capture capabilities of Orah
enable the viewer of the content to locate the origin of the sound
source with a VR headset, bringing the feeling of immersion to a
stunning new level."

https://www.orah.co/ :
Looking at the pictures and captions, it says: "Immersive Sound, Four
high dynamic-range microphones for ambisonic 3D sound". The capsules
(or mems?) look soldered on the sides of PC boards, listening through
holes.

--
Marc


 


Some related article, with some additional background information:


http://www.roadtovr.com/videostich-unveils-orah-4i-one-livestreaming-4k-360-camera/

"I got to see a functional build of VideoStich’s new camera up close. 
Although the unit isn’t yet sealed, it was fully functional, including 
livestreaming. "



Boasting 4 channel ambisonic sound with 4 on-board microphones, the 
Orah 4i is hoping to make an impression with a growing number of 360 
content creators that demand "a bare minimum of positional audio" in 
their videos, 



(whatever this means... ;-) )



* 4096×2048 H.264 High Profile (4K)
* 30 fps
* 4 ­Channel Ambisonic @ B­Format
* 100% anodized precipitation­-hardened aluminum housing
* 80 x 70 x 65 mm 480g or 3.1 x 2.7 x 2.5 inches 17 oz



The aimed price range seems to be very competitive for a professional 
product in this market. (I am not trying to promote anything, just to be 
clear..)



Kind regards,

Stefan

P.S.: Obviously they record in B format, like everybody else using a SF 
mike... (so, no "YT FOA format", or alike.)



... convenience factors, like built-in image stabilization and its 
automatic post-processing function which goes through the supplied 
‘stitching box’, a dedicated mini-computer designed to polish up the 
video for livestreaming that then outputs equirectangular video, or 
the same format used by Facebook, Youtube, Vrideo, Littlstar, 
Bitmovin, and others.




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Re: [Sursound] Orah

2016-04-10 Thread Stefan Schreiber

Dave Hunt wrote:


Hi,

Compare Orah with Jaunt.

https://www.jauntvr.com/technology/

Large price difference. Jaunt has many more cameras. No microphone  
built in. Have seen it used with what looked like one of Len's Core  
Sound microphones and a Tascam recorder.



Exactly. Anybody who uses a JauntVR camera can afford a SF mike of 
probably any manufacturer. (And you could record audio also in 7.1+4H, 
if you prefer an emerging "immersive TV audio standard". )


See also NextVR:

http://www.sportsvideo.org/2016/03/15/nextvr-fox-sports-bring-vr-to-big-east-mens-basketball-tournament/

The final mix comprised audio from binaural microphones placed at each 
camera location and a direct pull of elements from the Fox Sports 
audio mix. Surround and directional placing of sound is critical to 
the feel of the experience, and NextVR and Fox Sports placed an 
emphasis on a lower announcer volume beneath prominent on-court 
sounds, including bouncing of the ball and squeaking of sneakers.



Best,

Stefan

--




From: Marc Lavallee 
Date: 8 April 2016 19:00:24 BDT
To: sursound@music.vt.edu
Subject: [Sursound] Orah



Finally, a 3D camera with an integrated FOA microphone?
https://www.orah.co/tech-specs/

https://www.orah.co/about/ :
"In addition, the ambisonic 3D sound capture capabilities of Orah
enable the viewer of the content to locate the origin of the sound
source with a VR headset, bringing the feeling of immersion to a
stunning new level."

https://www.orah.co/ :
Looking at the pictures and captions, it says: "Immersive Sound, Four
high dynamic-range microphones for ambisonic 3D sound". The capsules
(or mems?) look soldered on the sides of PC boards, listening through
holes.

--
Marc




From: Jörn Nettingsmeier 
Date: 8 April 2016 22:26:50 BDT
To: sursound@music.vt.edu
Subject: Re: [Sursound] Orah


On 04/08/2016 08:00 PM, Marc Lavallee wrote:



Finally, a 3D camera with an integrated FOA microphone?
https://www.orah.co/tech-specs/

https://www.orah.co/about/ :
"In addition, the ambisonic 3D sound capture capabilities of Orah
enable the viewer of the content to locate the origin of the sound
source with a VR headset, bringing the feeling of immersion to a
stunning new level."

https://www.orah.co/ :
Looking at the pictures and captions, it says: "Immersive Sound, Four
high dynamic-range microphones for ambisonic 3D sound". The capsules
(or mems?) look soldered on the sides of PC boards, listening through
holes.



very far apart, with body resonances that i don't want to imagine.
hate to be negative about so much exciting new tech, but "stick  n>=4 
cheap capsules somewhere and call it ambisonic" seems  questionable 
to me. simple truth of the matter is that as long as  video techs add 
mics as an afterthought, the results are going to  suck, badly.



--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487

Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT

http://stackingdwarves.net



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Re: [Sursound] Anyone know anything about this?

2016-04-10 Thread Stefan Schreiber

Jörn Nettingsmeier wrote:


On 04/08/2016 04:26 PM, Marc Lavallee wrote:


On Fri, 8 Apr 2016 15:13:16 +0200
Jörn Nettingsmeier  wrote:




They might have very pragmatic reasons: if they know their equivalent
input noise is at 30 dB SPL and their capsules barf at 120, then
restricting the word length to 96 dB is a perfectly reasonable
decision, given the extremely cramped space and the thermal
challenges inside the sphere. It does not leave much room for error
though, so they better get their analog gains right.



It makes sense. Thanks.

So what 96kHz refers to?



96 kHz is probably due to the marketing department looking for 
something that suggests "hi-resolution"...



48kHz makes a lot of sense, and is actually the film and TV standard.

It also makes sense to go a bit higher, and then probably to 48kHz * 2. 
(Which you can convert easily to 44.1kHz, if required.)


This is such an old story, and has been discussed so many times here...


Best,

St.

P.S.: And how is 5.1 usually recorded, just as an academic question? 
:-D


They support (also) 5.1 output, at least at 1st view.
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