Omnidirectional, planar, directional and impulsive sources. What you need to excite a room or a facade while meeting the directivity and repeatability requirements the standard asks of the source, rather than simply making noise.
The existing ones weigh 30 kg and want 230 V on the third floor with no lift.
Architectural acoustics on a scale model: a miniaturised ultrasonic-band spark.
Impulse source for impulse response measurement. It produces a repeatable impulse mechanically: nothing to power, nothing to explain to passers-by.
Levelling on floors that are not flat, without altering the impact.
Known, stable sound power: it calibrates the method, not the instrument.
Today the 45 degree angle is eyeballed; here it is read off a scale.
Every serious omni on the market needs a flight case and two people.
Rain noise on roofs, skylights and conservatories.
STI and intelligibility: a speech source with standardised directivity and level.
A dodecahedron that breaks down into segments: it fits in 30 L instead of a flight case.
Impulse response in large rooms (churches, theatres): support, aiming, protection.
A repeatable burst: pressure gauge, inflation template, remote popper.
Repeatable 1 m release height without a second operator.
A single repeatable impact, with known mass and height.
A bench for verifying the omnidirectionality class of your own source.
Extension of the existing family.
One object instead of amplifier plus laptop plus interface; battery powered, IP54.
ISO 16283-3 loudspeaker method, 45 degrees incidence on the facade.
Retrofit for the 12/20 sphere already sold, without rebuying the drivers.
On-site check before the final layer goes down.
Injection into an air duct for measurements on fans and air handling units.
Excitation with measured force on structures and floors.
Five 500 g hammers, 40 mm drop, 10 impacts per second. Today it costs as much as a used car.
Source for low-frequency impact noise.