Update on this
Zoom is now shipping the H3 =96 a 360 microphone array that includes a reco=
rder in Ambisonics A and B formats
https://www.zoom-na.com/products/field-video-recording/field-recording/zoom=
-h3-vr-handy-recorder
it looks promising, although I=92ve never been impressed with Zoom=92s caps=
ules
on the headphones side, Audeze introduced the Mobius which is a headtrackin=
g 3D headphone.
https://www.zoom-na.com/products/field-video-recording/field-recording/zoom=
-h3-vr-handy-recorder
they are a bit pricey but well reviewed
so=85 some new hardware that seems to advance the state-of-the-art
Thanks
Brian
portfolio https://www.brianvalentephotography.com/
From: Brian Valente
Sent: Friday, September 28, 2018 10:51 AM
To:
Subject: RE: [Nature Recordists] ambisonic audio
Hi Aaron
Thanks for your thoughts.
Regarding a =93next generation=94 type of setup, what do you think is missi=
ng. Is it in the mics/capture, or more in the post processing, or maybe bot=
h?
Thanks
Brian
portfolio https://www.brianvalentephotography.com/
From: <=
..com>
Sent: Thursday, September 27, 2018 3:27 PM
To: <=
om>
Subject: Re: [Nature Recordists] ambisonic audio
Hi Brian,
I got excited at the prospect of taking an Ambisonics mic into the field to=
do the kind of 'anthropogenic'-centric soundscape recording I've done lots=
of using near-binaural mics (and some Blumlein and M/S and spaced omni).
The tantalizing prospect was to take composed immersive sound to the next l=
evel, allowing and playing with, as you say, listener head position=96espec=
ially since platforms like YouTube and Facebook support headset decode and =
have some rudimentary HRTF synthesis...
....long story short, my enthusiasm cooled significantly when I played with=
live-decode from recordings made with second-generation tetrahedral ambiso=
nics, because for people used to 'rich' stereo with a lot of subtle cues fo=
r e.g. depth and focused localization, the stereo image produced felt very =
vague and flat=96more like an uneven flat sphere than a three dimensional s=
pace, as it were.
>From what I understand higher-order Ambisonics fills in the 'holes' and giv=
es more, but IMO what's going to be really necessary for the technique to w=
ork as I want is to somehow capture, and be able to "remove in post" the ti=
ming and maybe to some extent frequency variation characteristic of HRTF, a=
nd synthesize more accurately those differences for the realtime-rendered h=
ead position.
I have vague ideas of how one might in theory attempt this, there should be=
enough information in a tetrahedral array=96and there should be ways of e.=
g. using a nested double tetrahedral array at controlled spacing, maybe wit=
h the inner set serving as an occluding baffle...
....but that would require a lot of computation if it worked at all...
....and I'm too lazy personally to take it on. So far.
But absent some kind of next-generation step up, I am myself waiting for mo=
re to be there before jumping... :/
aaron
On Thu, Sep 27, 2018 at 1:59 PM 'Brian Valente' <mailto:=
> [naturerecordists] < <=
> > wrote:
Hi all,
Is anyone experimenting or working with ambisonic audio?
I see new VR microphones out there, Zoom just released a 360 mic for around=
$350
I=92ve always been a fan of and recorded ambient, but I really love the ide=
a of putting on headphones and as the you move your head, the audio moves a=
ccordingly so it=92s as though you were really there
I just haven=92t seen much in the way of standalone ambisonic audio or head=
phones for that purposes.
Thanks
Brian
portfolio https://www.brianvalentephotography.com/
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