Question for Dr. Olive, Tom Mallin & Jeff Fritz: Wave Field Synthesis
- Thread starter Ron Party
- Start date
That's essentially how phased array radars work.
However, one problem I see is a lack of information. When recordings are made,
we only sample the wave at just a few points - where the microphones are.
If we had a "wall of microphones" at the recording session, and with a lot of computer
processing power - perhaps a "wall of transducers" could effectively replicate the
3D soundfield.
However, even the Krell musicians didn't make that type of recording.
It's a nice concept to contemplate.
Greg
Last edited:
Smarty pants!
I actually worked with a guy who didn't understanding anything or couldn't explain anything unless it could be expressed in an equation. I always wondered how he explained things to his kids before they got through algebra and calculus.
John,
Exactly!! Anyone familiar with Green's functions and differential equations would
be quite familiar with this.
Essentially the Green's function here gives you the response at (w,z) in phase space
due to an impulse at z'. If you integrate [ which is analogous to a sum in the discrete
realm, except integrals are in the continuum ], then you are just "summing" over all
driving inputs of that input times its response.
Greg
Did you know that Bert Whyte had a huge R2R tape collection? A high-end audio manufacturer ended up with all of Bert's tapes-and remember that the engineers in those days used to trade tapes. So there are some spectacular recordings in that collection. Drool.....
Sine Language?
Good one! LOL. When his kids went to college he refused to Cosine their student loans.
While the question of having sufficient information is an important one, I'd suggest giving further consideration to the very significant difference from radar where audio uses a much wider bandwidth. Once you start including bandwidth that has very long wavelengths and you don't have an effectively infinite dimension to the array (by way of boundaries or spherical encapsulation, things get rather dicey for more than one listening position and maintaining behavior over a wide bandwidth. It's easy to define an array that works for a limited bandwidth, but just as is the case with speakers using multiple elements in an array, wide bandwidth complicates things greatly.
The music room conceptually would look like Professor X's Cerebro chamber. That would definitely be cool!
Oh Sean, is that how he managed to buy a secant home?
Oh Sean, is that how he managed to buy a secant home?
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