Podium Sound panel loudspeakers do not incorporate the Layered Sound
technology. Like conventional cone loudspeakers, they only propagate one of the
two naturally occurring sound waves - but it's the missing wave that conventional
loudspeakers can't reproduce. Although most mass-market resonating
loudspeakers require a significant Digital Signal Processing (DSP) to correct them
sonic performance, the Podium Sound loudspeakers proves, unequivocally, that
resonating loudspeakers can perform as well as conventional ones. Fortunately,
Layered Sound doesn't require that kind of performance, but it's nice to know one
can get it.
The Psychoacoustics of a
Vibrating Panel Loudspeaker
A sound that manifests a low level of binaural correlation makes it difficult or
impossible to locate the source of the sound. A vibrating panel loudspeaker can
only propagate binaurally de-correlated sound. This is the reason for its remarkable
diffusion characteristics. And it is also the reason this kind of loudspeaker does not
propagate a classic 'Stereo' sound.
The Halves (and have not) of Mechanically
Pistons and resonating panels.
In response to an electronic signals, a conventional cone loudspeaker moves like a
piston, creating coherent compression and rarefaction. This creates the motion of
a longitudinal wave in the air.
A resonating loudspeaker (DML) has a vibrating panel at its core. In response to an
electronic signal, a transducer that is fixed to the panel, induces transverse waves
in the panel, causing the panel to resonate, and then propagate highly diffuse and
incoherent air disturbance patterns. In short, loudspeakers with a vibrating element
at their core, transmit sound on the basis of transverse waves, not longitudinal waves.
Natural sound has both longitudinal and transverse waves. We believe reproduced
sound should too!
It's called: Layered Sound