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Re: ambisonic audio

Subject: Re: ambisonic audio
From: "Brian Valente" bvalente
Date: Mon Nov 12, 2018 11:58 am ((PST))
yeah for less than 1k for both the zoom H3 and the Audeze Mobius, i am
picking them both up and giving it a whirl

On Mon, Nov 12, 2018 at 11:55 AM Aaron Ximm 
[naturerecordists] <> wrote:

>
>
> Thanks Brian,
>
> That Zoom is crazy-looking but promising - for $350 it's certainly got my
> interest. I thought the capsules on the H2 were pretty decent and the UX
> pretty decent as well, I'm a fan for the price point. The H2 was always a
> backup for the Sony, but, if this is at least at that par, I will likely
> give it a go.
>
> The AA powering is a pleasant surprise for long term travel as well!
>
> I do wonder about windscreening that thing though...
>
> aaron
>
> On Mon, Nov 12, 2018 at 10:16 AM 'Brian Valente' 
> [naturerecordists] <> wrote:
>
>>
>>
>> Update on this
>>
>>
>>
>> Zoom is now shipping the H3 =96 a 360 microphone array that includes a
>> recorder in Ambisonics A and B formats
>>
>>
>> https://www.zoom-na.com/products/field-video-recording/field-recording/z=
oom-h3-vr-handy-recorder
>>
>>
>>
>>
>>
>> it looks promising, although I=92ve never been impressed with Zoom=92s
>> capsules
>>
>>
>>
>>
>>
>> on the headphones side, Audeze introduced the Mobius which is a
>> headtracking 3D headphone.
>>
>>
>> https://www.zoom-na.com/products/field-video-recording/field-recording/z=
oom-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
>> missing. Is it in the mics/capture, or more in the post processing, or
>> maybe both?
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Thanks
>>
>>
>>
>> Brian
>>
>>
>>
>> portfolio https://www.brianvalentephotography.com/
>>
>>
>>
>> *From:*  [
>> 
>> <>]
>> *Sent:* Thursday, September 27, 2018 3:27 PM
>> *To:* 
>> *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 nex=
t
>> level, allowing and playing with, as you say, listener head
>> position=96especially 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
>> ambisonics, because for people used to 'rich' stereo with a lot of subtl=
e
>> cues for 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 space, as it were.
>>
>> From what I understand higher-order Ambisonics fills in the 'holes' and
>> gives more, but IMO what's going to be really necessary for the techniqu=
e
>> to work as I want is to somehow capture, and be able to "remove in post"
>> the timing and maybe to some extent frequency variation characteristic o=
f
>> HRTF, and synthesize more accurately those differences for the
>> realtime-rendered head 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, mayb=
e
>> with 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
>> more to be there before jumping... :/
>>
>> aaron
>>
>>
>>
>> On Thu, Sep 27, 2018 at 1:59 PM 'Brian Valente' 
>> [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
>> idea of putting on headphones and as the you move your head, the audio
>> moves accordingly so it=92s as though you were really there
>>
>>
>>
>>
>>
>> I just haven=92t seen much in the way of standalone ambisonic audio or
>> headphones for that purposes.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Thanks
>>
>>
>>
>> Brian
>>
>>
>>
>> portfolio https://www.brianvalentephotography.com/
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>>
>>   
>>   quietamerican.org <http://quietamerican..org>
>>   oneminutevacation.org
>>
>>   83% happy
>>    9% disgusted
>>    6% fearful
>>    2% angry
>>
>>
>>
>>
>
> --
>   
>   quietamerican.org
>   oneminutevacation.org
>
>   83% happy
>    9% disgusted
>    6% fearful
>    2% angry
>
>


--
Brian



Brian Valente
portfolio brianvalentephotography.com  <http://brianvalentephotography.com>








"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.



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