Does FIRmaker only work with external DSP controllers or amplifiers?

No, FIRmaker can also be used in loudspeakers equipped with on-board DSP. This applies for example to more sophisticated powered line arrays as well as to digitally steerable column loudspeakers.

In general, any possible combination of DSP / amplifyers / transducers within single or multiple cabinets or in a unified housing is possible as long as the hardware and DSP software allows storing of separate FIR filters into every DSP block.

Does FIRmaker require on-site measurements?

No, FIRmaker is using high-resolution loudspeaker modeling data to simulate the performance of the system. Based on that FIRmaker computes optimal FIR filters for each DSP channel. Extensive tests in the field have shown that the accuracy of the simulation predicts system performance better than measurable differences of the real setup.

On-site measurements e.g. with SysTune or EASERA can, of course, be performed additionally to refine the performance and align the array to other parts of the sound system.

EASE Address Upgrade History

EASE Address  v1.1.221


Bug fix for exporting rooms to EASE 4.


EASE Address  v1.1.220


Minor Update and Bug Fixes

  • The software now supports file associations in order to automatically load a project file (*.ead) upon start-up.
  • Improved memory management.
  • Bug fix for Apple computers with M1 processors.
  • Improvements for author file management.
  • Updated example loudspeaker data.


AFMG SoundFlow Upgrade History

AFMG SoundFlow v1.0.130


  • Added C and Ctr for the bandwidth of 50 Hz to 3150 Hz according to ISO 717-1.
  • The results diagram was not always refreshed correctly, especially for the Phase graph. Now fixed.
  • Bug fix for EASE material export.


AFMG SoundFlow v1.0.12


Several bug fixes, partially related to the calculation of STC.


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
Applications in
engineering and physics
RF and infrared

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