Ahnert Feistel Media Group

Located in Berlin, Germany, AFMG® Technologies GmbH has created the industry standards EASE and EASERA software for acoustic simulation and measurement as well as their related products EASE Focus, AFMG SysTune, EASE Address and EASE SpeakerLab.

In cooperation with our partner company SDA Software Design Ahnert GmbH we develop and distribute software for:

Electro-acoustic and
room-acoustic modeling
Electronic and acoustic
measurements
Applications in
engineering and physics
RF and infrared
simulation

EASE 4 Tutorial

We recommend our EASE Tutorial to every user looking for a comprehensive introduction to EASE. An update of the tutorial to EASE 4.4 is currently in preparation. In the meantime, please use the version below. As an introduction, no substantial differences are to be expected.

How many DSP channels are necessary for a FIRmaker setup?

FIRmaker is able to work with any number of DSP channels. AFMG's general-purpose approach is one DSP channel per cabinet.

In very large arrays it will be possible to combine two or even three cabinets into a single source driven by one FIR DSP channel without too much trade-off.

The number of FIR and amplifier channels used per cabinet is not limited, on the other hand. Dozens of channels could be calculated by FIRmaker per box. Even vertical + horizontal optimization would be possible if implemented by the loudspeaker manufacturer.

Can single loudspeakers be optimized with FIRmaker?

This depends on the type of loudspeaker. FIRmaker can optimize the coverage of a column loudspeaker, or any other single loudspeaker that has multiple drivers operating in the same frequency region.

Theoretically it would be possible to use the FIRmaker algorithm as a simple tool to generate FIR-based crossover filters for conventional loudspeakers. However, FIRmaker was originally not intended as an optimization tool for a loudspeaker with only one, or very few, drivers operating in the same pass band (frequency range).