: [Sursound] Nevaton microphones
[...]
Imagine a circular array. For a single distant source, AMB
will use only two or three speakers, those closest to the
direction of the source (the contribution of the others will
be *very* small at high order). WFS will use half of the
circle
On Tue, Jun 04, 2013 at 01:52:57AM +0300, Sampo Syreeni wrote:
On 2013-06-03, Fons Adriaensen wrote:
Note the sqrt(k) factor in eq.(4). This the 3dB/oct factor I
mentioned before. It arises because in the derivation of the
driving function vertical line sources are replaced by point
On Sun, Jun 02, 2013 at 11:14:24PM -0400, David Pickett wrote:
Perhaps I was not clear. Take 2:
It seems to me that Sampo claimed that the omni from a double
capsule mic is not the same as the W signal obtained by processing
the ouputs of the four mics in the A-format tetrahedral array,
On Mon, Jun 03, 2013 at 05:51:40AM -, Michael Chapman wrote:
-If you want a horizontal W (say 'W(2)')
-if you are happy to have this 'omni' as having a cardiod polar pattern
(in the vertical plane) -which surely one wants to match the vertical
polar patterns of X and Y (???)
then:
-I am
...@linuxaudio.org
To: sursound@music.vt.edu
Subject: Re: [Sursound] Nevaton microphones
On Mon, Jun 03, 2013 at 05:51:40AM -, Michael Chapman wrote:
-If you want a horizontal W (say 'W(2)')
-if you are happy to have this 'omni' as having a cardiod polar pattern
(in the vertical plane) -which
On Mon, Jun 03, 2013 at 08:10:29PM +0530, umashankar manthravadi wrote:
I am a little confused by this discussion.
No surprise, a lot of issues got mixed up in this thread:
1) Can a 2D (horizontal-only) playback system generate
plane waves (that do not attenuate with distance) ?
2) Will
On 2013-06-03, Fons Adriaensen wrote:
No surprise, a lot of issues got mixed up in this thread:
Agreed.
2) Will using some filters help to achieve this ?
Here I'm not too sure yet. If you look at e.g.
dafx04.na.infn.it/WebProc/Proc/P_250.pdf , on the WFS side they seem to
be including
On Mon, Jun 03, 2013 at 08:10:59PM +0300, Sampo Syreeni wrote:
2) Will using some filters help to achieve this ?
Here I'm not too sure yet. If you look at e.g.
dafx04.na.infn.it/WebProc/Proc/P_250.pdf , on the WFS
side they seem to be including frequency dependent terms for
the
On 2013-06-03, Fons Adriaensen wrote:
Note the sqrt(k) factor in eq.(4). This the 3dB/oct factor I mentioned
before. It arises because in the derivation of the driving function
vertical line sources are replaced by point sources, and NOT because
the resulting line array of secondary sources
--On 02 June 2013 02:55 +0300 Sampo Syreeni de...@iki.fi wrote:
it will be reproduced wrong unless you're doing full periphony.
This much is clear. But given the practical importance of a
horizontal-only setup throughout the history of Ambisonics, I'd be
surprised if any substantial
On Sun, Jun 02, 2013 at 02:55:28AM +0300, Sampo Syreeni wrote:
But if you then record even the ideal infinitely distant point source
in the horizontal plane using the same setup, and try to reproduce it
using a pantophonic/2D rig, what you get is the same problem WFS gets.
The directionality
At 19:55 1/6/2013, Sampo Syreeni wrote:
On 2013-06-01, David Pickett wrote:
What I take this to mean is that if one is using WXY (derived from
A-format) for horizontal only playback, W will contain unwanted
vertical information that should be discarded.
Correct for W, but also for X and Y.
At 19:55 1/6/2013, Sampo Syreeni wrote:
On 2013-06-01, David Pickett wrote:
What I take this to mean is that if one is using WXY (derived from
A-format) for horizontal only playback, W will contain unwanted
vertical information that should be discarded.
Correct for W, but also for X and Y.
is
a good deal of progress still to be made in this area.
Eric Benjamin
- Original Message
From: Sampo Syreeni de...@iki.fi
To: Surround Sound discussion group sursound@music.vt.edu
Sent: Sat, June 1, 2013 6:55:04 AM
Subject: Re: [Sursound] Nevaton microphones
On 2013-05-31, Daniel Courville
At 11:23 2/6/2013, Michael Chapman wrote:
At 19:55 1/6/2013, Sampo Syreeni wrote:
On 2013-06-01, David Pickett wrote:
What I take this to mean is that if one is using WXY (derived from
A-format) for horizontal only playback, W will contain unwanted
vertical information that should be discarded.
David Pickett wrote:
Perhaps I was not clear. Take 2:
It seems to me that Sampo claimed that the omni from a double capsule
mic is not the same as the W signal obtained by processing the ouputs
of the four mics in the A-format tetrahedral array, and I would
agree. However, the former
On 2013-05-31, Daniel Courville wrote:
I always insist on recording 'Z', and then almost never end up using
it...
Not even to look down or up in a stereo decode? I use the Z quite
often (if not always) when recording large ensemble and the SF mic is
more than 10 feet off the floor.
BTW,
At 09:54 1/6/2013, Sampo Syreeni wrote:
BTW, did you ever look through what Z really does to you *encoding*
equations? Formally, in order to arrive at proper pantophony you
always have to either reject Z fully or purposely subtract it from
the whole B-format signal set. Otherwise, even
On 2013-06-01, David Pickett wrote:
What I take this to mean is that if one is using WXY (derived from
A-format) for horizontal only playback, W will contain unwanted
vertical information that should be discarded.
Correct for W, but also for X and Y. That's not the end of the story
either:
Hello,
anyone tried these multichannel mic?
http://nevatonmics.com/mics_multichannel.php
I wonder what the quad configuration is.
Thanks.
Ema
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Hello,
anyone tried these multichannel mic?
http://nevatonmics.com/mics_multichannel.php
I wonder what the quad configuration is.
Looking at the PDF ...it _looks_ like two 'figure of eights' mounted in
the horizontal plane.
I say 'figure of eights' but with four outputs, that is
: Thu, May 30, 2013 8:11:31 AM
Subject: [Sursound] Nevaton microphones
Hello,
anyone tried these multichannel mic?
http://nevatonmics.com/mics_multichannel.php
I wonder what the quad configuration is.
Thanks.
Ema
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Eric Benjamin à écrit:
The lack of a vertical component is an interesting conundrum. I always
insist
on recording 'Z', and then almost never end up using it...
Still ... seems a pity to have _four_ capsules and no 'Z' ...
Michael
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