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Zoom H3-VR

All about the tools and techniques involved in capturing sound, in the studio or on location.

Re: Zoom H3-VR

Postby Wonks » Sun Aug 25, 2019 10:25 am

"Nobody expects the ambisonics inquisition!"............"Nobody expects the ambisonics inquisition!"












"Nobody expects the ambisonics inquisition!"............"Nobody expects the ambisonics inquisition!"
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Re: Zoom H3-VR

Postby Hugh Robjohns » Sun Aug 25, 2019 10:36 am

:clap: :lol:
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Re: Zoom H3-VR

Postby Dan LB » Sun Aug 25, 2019 1:38 pm

:lol:
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Re: Zoom H3-VR

Postby ConcertinaChap » Sun Aug 25, 2019 1:55 pm

Well, that was certainly unexpected.

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Re: Zoom H3-VR

Postby MOF » Tue Sep 03, 2019 5:51 pm

Yes. Ambisonic recordings can be decoded to any desired number of outputs, depending on the capabilities of the decoding software. Four cardinal outputs shouldn't be a problem.

I went to an ambisonic demonstration many years ago and I seem to remember that the placement of speakers was proscribed. The two front speakers were at (L-R) 315º and 45º and the rear speakers were at 135º and 225º they were all above your head pointing down at you, I seem to remember. I can't find anything on the web to confirm this.
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Re: Zoom H3-VR

Postby Hugh Robjohns » Tue Sep 03, 2019 6:20 pm

MOF wrote:I went to an ambisonic demonstration many years ago and I seem to remember that the placement of speakers was proscribed. The two front speakers were at (L-R) 315º and 45º and the rear speakers were at 135º and 225º they were all above your head pointing down at you, I seem to remember. I can't find anything on the web to confirm this.

The speaker feeds are decoded from the B-format (or higher order) ambisonic format specifically for any given number and location of speakers. Its just a load of matrix calculations and some filtering -- very easy in the digital domain.

The arrangement of speakers is normally expected to be symmetrical left/right and front/back, but the four channel decoders I've used have had facilities to cope with square or rectangular arrays, and the latter with the long axis fore-aft or left-right. The Meridian B-format/UHJ decoder I use now can decode to 4, 5, 6, or 7 speaker layouts, with a lot of flexibility in actual speaker positions. I have it set up to decode to a fairly conventional ITU 5 channel layout.

Four speakers is the minimum for horizontal soundfield's, but can suffer from unstable imaging at positions between the speakers, especially atbthe sides. The more speakers available to the decoder, the more accurate and stable the spatial imagining will be... and there are decoders that can derive height channels as well, of course...
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Re: Zoom H3-VR

Postby MOF » Tue Sep 03, 2019 7:51 pm

and there are decoders that can derive height channels as well, of course...

Thanks Hugh, I can't remember if there were any additional speakers to create height information, in my mind that is why the speakers were above us pointing down, but as I say this was some time between 1984 & 1991.
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Re: Zoom H3-VR

Postby cyrano.mac » Thu Sep 05, 2019 4:20 pm

ConcertinaChap wrote:Cheapest place to get one from I found in the UK was Amazon at £291.

It's 271£ at Thomann's.

https://www.thomann.de/gb/zoom_h3_vr.htm
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Re: Zoom H3-VR

Postby Neper » Thu Oct 17, 2019 5:54 pm

I've recently noticed that during playback in 5.1 with the Zoom Ambisonics Player the two rear channels (Ls and Rs) are dead. A file exported in 5.1 has signal in all six channels.

Can anyone confirm this bug?
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Re: Zoom H3-VR

Postby ConcertinaChap » Thu Oct 17, 2019 9:21 pm

Both Amazon and Thomann price has dropped more. Thomann still has the edge.

Can't help with the 5.1 bug since I don't have that speaker setup, sorry.

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Re: Zoom H3-VR

Postby The Elf » Fri Oct 18, 2019 10:37 am

The price continues to drop to 'might as well give it a go' territory. Tempting...
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Re: Zoom H3-VR

Postby ConcertinaChap » Fri Oct 18, 2019 11:33 am

It's not a bad bit of kit. Decent value at the price I paid for it and getting better all the time, it seems.

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Re: Zoom H3-VR

Postby Neper » Fri Oct 18, 2019 9:57 pm

Got one of the first to be sold here in Germany, fixed the loose microphone unit with a drop of superglue and haven't looked back since. Wouldn't want to be without it again.

Just wish there was some better software for post-processing.
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