--On 30 September 2012 00:16 +0100 Augustine Leudar
augustineleu...@gmail.com wrote:
all he meteres read is pressure /gain from respective
summed/deducted capsules
The directional capsules of the tetrahedral mic are responding to a
combination of pressure and velocity - that's how
On 09/29/2012 01:06 AM, Augustine Leudar wrote:
that is . weird. Im sure someone will have to remind me - memories of
constructing my ambisonic microphone and encoder are already fading but
isnt the omni W the sum of the XY and Z +/- (each with a reduced gain) ?
no.
in the case of a
On Sat, Sep 29, 2012 at 11:10:11PM +0200, Jörn Nettingsmeier wrote:
On 09/29/2012 01:06 AM, Augustine Leudar wrote:
that is . weird. Im sure someone will have to remind me - memories of
constructing my ambisonic microphone and encoder are already fading but
isnt the omni W the sum of the
--On 29 September 2012 23:08 +0100 Augustine Leudar
augustineleu...@gmail.com wrote:
so how
would it occur that Richard would have activity registering on his x,y,
and z meters but not the w one ?
Because there was no significant pressure signal, only a velocity one. He
did say this was an
my understanding (which Im the first to admit is limited) was that the W
gave the position on the xyz axis - ie if the x,y, or z was in or out of
phase with the w it would give you info on which side of the fig of 8 the
signal was coming from and thus location on that axis. The way I built my
except its not quite the same effect. If I hear a plan(ish) wave in nature
such as in thunder or a very distant giant waterfall
Distant thunder is often an extreme case of Proximity effect. Velocity
components are boosted at LF compared omni components.
You encounter this if you are using
Well, well, someone has actually started to put together a Hyper Dense
Transducer Array
Dave
On 23/09/2012 09:35, Augustine Leudar wrote:
by the way have any of you seen this :
On 23/09/2012 11:19, Fons Adriaensen wrote:
On Sun, Sep 23, 2012 at 09:31:30AM +0100, Augustine Leudar wrote:
except its not quite the same effect. If I hear a plan(ish) wave in nature
such as in thunder or a very distant giant waterfall
I doubt very much if either would be a plane wave.
Hi Augustine,
the parallel wave front virtually originate from startimg point far away
behind the loudspeaker array.
In the same manner as the moon is following you, if you are walking across
the street at nigth, the sound source follows your migration.
Besides, a loudspeaker line cannot
Hmmm,
except its not quite the same effect. If I hear a plan(ish) wave in nature
such as in thunder or a very distant giant waterfall - it doesnt seem to
follow me speaker by speaker a I walk in a 15m line parallel to it (as it
does with my wfs array) - with my wfs rig its as if the sound is
by the way have any of you seen this :
http://www.syntheticwave.de/HOLOPLOT_Loudspeaker_Modules.htmhttps://ex2k7.qub.ac.uk/OWA/redir.aspx?C=jMjb6VGWPE2C03uwInbI6NzL1xn6bM9IpE_V4FFPuYLdaVy2otKYLbtqGTJydNHU9qsGKXoXCo8.URL=http%3a%2f%2fwww.syntheticwave.de%2fHOLOPLOT_Loudspeaker_Modules.htm
far
On Sun, Sep 23, 2012 at 09:31:30AM +0100, Augustine Leudar wrote:
except its not quite the same effect. If I hear a plan(ish) wave in nature
such as in thunder or a very distant giant waterfall
I doubt very much if either would be a plane wave.
with my wfs rig its as if the sound is staying
Augustine Leudar wrote:
by the way have any of you seen this :
On 2012-09-12, Fons Adriaensen wrote:
It will be the nearest speaker only if the direction of the source is
orthogonal to the line array.
Granted. But you'll have to grant that there is then a direction
incident to the rig where the source still seems to follow you from a
direction not even
On 2012-09-12, Augustine Leudar wrote:
thanks Fons
Adding to Fons, who is pretty much always on the mark...
another question is - is our auditory system able to take account of
the curvature of a wavefront to estimate the distance of a source or
does it only use other cues such as the
Even with expensive speakers, if you are too close to the array the closest speaker will be louder
than those further away as it no longer approximates at plane wave source, so will always tend to
pop out at you.
Dave
On 12/09/2012 14:58, jim moses wrote:
i've heard similar results,
Hi all,
This is a question for those with knowledge of WFS. One of the
properties of plane waves propagated with a single line array on a
Wavefield synthesis system is that as you walk down the array the
sound follows you appearing to emanate from the nearest loudspeaker
. I was wondering if this
On Wed, Sep 12, 2012 at 01:17:23PM +0100, Augustine Leudar wrote:
This is a question for those with knowledge of WFS. One of the
properties of plane waves propagated with a single line array on a
Wavefield synthesis system is that as you walk down the array the
sound follows you appearing to
hmm - thats weird because I get this effect even if the plane wave
isnt orthogonal to the array - perhaps something is configured
wrongly.
On 12/09/2012, Fons Adriaensen f...@linuxaudio.org wrote:
On Wed, Sep 12, 2012 at 01:17:23PM +0100, Augustine Leudar wrote:
This is a question for
another question is - is our auditory system able to take account of
the curvature of a wavefront to estimate the distance of a source or
does it only use other cues such as the spektral content of the sound
etc etc
On 12/09/2012, Augustine Leudar augustineleu...@gmail.com wrote:
hmm - thats
the effect described could be an artifact of the speakers being used. if
the speakers have have a high frequency bump at 0 degrees on axis, as many
do, you can get the sensation described where each speaker sort of pops out
of the array as you move in front of it.
jim
On Wed, Sep 12, 2012 at
i've heard similar results, especially when close to the array, from some
inexpensive speakers we used for experiments. to do better, look for
speakers with wide and smoothly dispersed HF response and avoid horn driven
PA sort of speakers. Of course, easier said than done when you need 16 or
more
yeah - we I still got some nice results - my main interest is
composition - but budgets the thing I think we will build a new
system soon - people have been recomending car speakers to me
On 12/09/2012, jim moses jmo...@brown.edu wrote:
i've heard similar results, especially when close
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