New ‘Auto IIR’ functionality in FIR Designer & FIR Designer M

The latest versions (4.2) of FIR Designer & FIR Designer M include all new ‘Auto IIR’ functionality, which dramatically speeds up the IIR EQ process by automatically selecting and setting parametric filters to match a response to a target response.

The Auto IIR function is accessed from within the IIR tab & works with the non-branded ‘Generic’ mode or any of the twelve branded IIR filter modes. (Blaze Audio & Pascal Audio have just been added for v4.2, joining Biamp Tesira, BSS, Lake, Linea Research, Marani, Powersoft, Q-SYS, Symetrix, RAM Audio & RMS-Acoustics.)

*Demo version doesn’t include Auto IIR

FIR Designer adds new Pascal & Blaze IIR modes | Twelve brands now included

The latest 4.2 versions of FIR Designer & FIR Designer M include two new branded IIR modes – Pascal Audio & Blaze Audio. IIR filters can be exported to TXT file reports, and crossover and EQ settings can be copied into input and output channels in the Blaze Audio “PowerZone” and Pascal Audio “ZoneControl” web UI’s.

Brand-specific IIR modes ensure common IIR filters produce consistent results when used across various amplifier/processor brands, because there are differences in the way each brand’s software interprets some filter parameters, like Q and bandwidth (BW), and in the conversion between Q & BW. (Learn more about IIR brand emulation.)

IIR responses in the new modes can be automatically converted to/from RMS-ACOUSTICSLakeLinea ResearchPowersoft, Q-SYS, Symetrix, BSS,  Biamp Tesira, Marani, RAM Audio & generic IIR modes using the IIR Reference Editor. (The ‘Generic’ mode is the a starting point for use with processors that don’t have their own branded mode.) This ensures IIR response matching when working with different amplifiers & processors, and solves the problem of standard filter settings producing different results on various amplifier/processor brands.

Let us know what other processor brands you’d like to see included with a custom IIR mode in FIR Designer.
FIR Designer M Release Notes | FIR Designer Release Notes
Blaze and Pascal in IIR drop down menu

New RMS-ACOUSTICS Mode in FIR Designer

We’ve added an ‘RMS-ACOUSTICS‘ IIR filter mode to FIR Designer (v4.1) & FIR Designer M (v4.1). It enables ‘WAY EQ’ IIR filter export for import into RMS-CONTROL software & aids mixed IIR+FIR RMS-ACOUSTICS preset creation.

IIR responses in the new RMS-ACOUSTICS IIR mode can be converted to/from LakeLinea ResearchPowersoft, Q-SYS, Symetrix, BSS,  Biamp Tesira, Marani, RAM Audio & generic IIR modes using the IIR Reference Editor. (The ‘Generic’ mode is the a starting point for use with processors that don’t have their own branded mode.)

The IIR Reference Editor enables the automated conversion of IIR filters between brands in a single click. This ensures IIR response matching when working with different amplifiers & processors, and solves the problem of standard filter settings producing different results on various amplifier/processor brands.

Version 4.1 Project Compatability Notification

Let us know what other processor brands you’d like to see included with a custom IIR mode in FIR Designer.
FIR Designer M Release Notes | FIR Designer Release Notes

Rational Acoustics & Eclipse Audio Announce Licensing & Development Agreement

Rational Acoustics and Eclipse Audio development agreement

FIR Designer v4 update adds ‘auditionDSP’ & more

Several of the new features recently released as part of the major FIR Designer M update have now been rolled into FIR Designer v4. Here’s a summary:

Listen to filters and presets with ‘auditionDSP

Use the brand new, built-in audio player + processor to audition, develop & perfect custom loudspeaker processing and presets, without the need to export data to an external hardware processor first.

It runs up to three loudspeaker presets simultaneously in real-time, with live switching between presets, and playback can be mono or stereo.

Screenshot of auditionDSP in FIR Designer

New Polar Map

The Supplementary Responses window plots the behavior of custom filters & presets when applied to a new set of (uploaded) measurements.

Now, the processed measurement sets can be optionally viewed as a polar map (or contour plot) making it easier to identify various on and off-axis behaviour of the loudspeaker preset with polar measurements.

Screenshot of polar map in FIR Designer version4

New Group delay display

View the time delay, through the combined processing, as a function of frequency, as well as independently for the IIR and FIR filtering.

(Available within the Second View window.)

More brands supported for IIR emulation. A new ‘RAM Audio‘ IIR filter mode has been added to the list of emulated brands, joining Lake, Linea ResearchPowersoft, QSC Q-SYS, SymetrixBSS,  Biamp Tesira & Marani . (The ‘Generic’ mode remains available as a starting point for use with processors that don’t have their own branded mode.) RAM Audio IIRs can now be converted to or from other branded filters in a single click.

Plot colors saved with the project file. When opening different projects, plot colours will default to any custom colours previously set for that specific project, and can be modified again at any time.

Upgraded macOS support . Separate, optimised binaries are now available for both Intel and newer ARM (M1, M2) based macs.

Significant speedup to underlying computations. Design custom filters & presets faster than ever!

Various user-interface updates and fixes.

Free Demo Download*
FIR Designer Product Info
FIR Software Comparison Table

*Demo version doesn’t include auditionDSP or the IIR Reference Editor

New Demo Versions Don’t Need Imported Measurements

Brand new, user-friendly demos of all our DSP filter design software tools are now available for free download. Now you can try out any software in the FIR Designer range WITHOUT having to upload any measurements first. Skip the ‘Import’ tab & dive right into the workflow & customization options using the pre-loaded example project.

FIR Designer, FIR Creator & Creator EX demo versions all now include the same single-channel pre-loaded example project. In FIR Designer M, an entire multi-channel example system has been pre-loaded to enable experimentation across all channels.

Please note, the IIR Reference Editor , auditionDSP player+processor & other selected features (built into some of our tools) are only available within the licensed software versions (not the free demos).

For help choosing the right tool for your needs, check out the software feature comparison table.

Download A Free Demo

New Polar Map in FIR Designer M v4

In response to customer requests, the latest version of FIR Designer M includes a new polar ‘heatmap-style’ plot in the ‘Supplementary Responses’ window.

The Supplementary Responses window displays the behavior of custom filtering & presets when applied to additional sets of uploaded measurements; either for a single loudspeaker or for each loudspeaker driver in a multi-way system. (See supported measurement file formats).

In FIR Designer M version 4, the processed measurement sets can now be optionally viewed as a polar heatmap-stype plot, making evaluation of directional behaviour (including on and off-axis) much easier. Where measurement sets only include one off-axis direction (due to loudspeaker symmetry), the Polar Map plot can be mirrored at either the top or bottom. Other plot customizations include vertical flipping, setable angle limits and the option to view either the combined loudspeaker response, or each channel individually.

As before, the Supplementary Responses window has controls for preparing the measurements sets, including optional time-alignment, level adjustment and level normalization.

Viewing supplementary responses is only possible in the full version of FIR Designer M (not the demo version).

FIR Designer M heatmap plot

Free Demo Download*
About FIR Designer M
What’s New in v4

*Demo version doesn’t include the Supplementary Responses window

Advanced auditionDSP functionality showcased in new video

‘auditionDSP’ is the digital signal processor & audio player built into the recently released FIR Designer M version 4. It allows users to LISTEN to their custom filters using either live audio or uploaded files, with live switching between up to three presets.

It’s perfect for auditioning, developing & perfecting custom loudspeaker filters and presets, without the need to export data to an external hardware processor for playback. Learn more about auditionDSP.

The free demo version of FIR Designer M doesn’t include auditionDSP, so we’ve just released a brand-new video to demonstrate how it works:

Free Demo Download*
About FIR Designer M
About auditionDSP

*Demo version doesn’t include auditionDSP or the IIR Reference Editor

Major FIR Designer v4 update adds ‘auditionDSP’

FIR Designer M v4 Update

We’re pleased to announce a major update to FIR Designer M. Version 4 includes the game-changing new auditionDSP tool, which along with several other new features, delivers significantly expanded functionality for development of custom filters & presets. Here’s a summary of what’s new for v4:

Listen to filters and presets with ‘auditionDSP – a brand new, built-in audio player + processor. It runs processing for up to three loudspeaker presets simultaneously in real-time, with live switching between presets. Use it to audition, develop & perfect custom loudspeaker filters and presets, without the need to export data to an external hardware processor first.

New Contour Plot. By popular demand! The Supplementary Responses window plots the behavior of custom filters & presets when applied to a new set of (uploaded) measurements. Now, the processed measurement sets can be optionally viewed as a contour plot, or heatmap, making it easier to identify various on and off-axis behaviour of the loudspeaker preset with polar measurements.

New Group delay display. View the time delay, through the processing, as a function of frequency. (Available within the Second View window.)

Project file consolidation. The system (fds) project file now contains everything. No more separate project files required for each audio channel! Fewer files means simplified project management.

Plot colors saved with the project file. When opening different projects, plot colours will default to any custom colours previously set for that specific project, and can be modified again at any time.

Upgraded macOS support . Separate, optimised binaries are now available for both Intel and newer ARM (M1, M2) based macs.

More brands supported for IIR emulation. A new ‘RAM Audio‘ IIR filter mode has been added to the list of emulated brands, joining Lake, Linea ResearchPowersoft, QSC Q-SYS, SymetrixBSS,  Biamp Tesira & Marani . (The ‘Generic’ mode remains available as a starting point for use with processors that don’t have their own branded mode.)

Significant speedup to underlying computations. Design custom filters & presets faster than ever!

+ Various user-interface updates and fixes.

RAM audio IIR mode
auditionDSP user interface
Free Demo Download*
FIR Designer M Product Info
FIR Software Comparison Table

*Demo version doesn’t include auditionDSP or the IIR Reference Editor

Free SpeakerMeasure Automates AES75-2022 Test Procedure

New AES75 software

New SpeakerMeasure from Eclipse Audio (the developer of FIR Designer) is a completely free software tool designed for loudspeaker manufacturers and designers who are measuring loudspeaker maximum linear sound levels using the AES75-2022 standard for acoustics.

SpeakerMeasure automates most of the AES75 test procedure to ensure level measurements are captured in way that’s repeatable and objective.

Windows & macOS versions available.

Learn more.

Free Download
SpeakerMeasure Info
The AES75 Standard
SpeakerMeasure AES75 software Screenshot
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