FIR Filter software for loudspeakers

FIR FILTER BASICS

All about FIR & the benefits for audio optimization

CREATE FIR FILTERS

Software for filter & preset design

LOAD FILTERS & PRESETS

Find FIR-Capable amps & processors

We provide software tools for equalizing audio systems and creating custom finite impulse response (FIR) filters & complete mixed FIR + IIR filter loudspeaker presets for single and multi-way loudspeakers.

Products in the Eclipse Audio range share an intuitive workflow that uses imported loudspeaker measurements as the starting point for filter & preset design.

Our Products

Windows & macOS versions available. Download a free demo version of any product & use for as long as you’d like.

FIR Designer M

FIR Designer

FIR Creator EX

FIR Creator

Need help choosing? See the Product Feature Comparison Table

Latest News

Generic IIR Mode Added to FIR Designer

Posted on November 21, 2022

A ‘Generic’ IIR filter mode has been newly added to FIR Designer (v3.5) & FIR Designer M (v2.6). It increases speed & accuracy when working with processors that don’t have their own branded IIR filter mode within the IIR Reference … Read More

FIR Designer SMAART® Update

Posted on November 13, 2022

Smaart V9 compatibility has been added to FIR Designer (v3.5) & FIR Designer M (v2.6) and works with SMAART Suite, Real-Time and Light Editions. Load previously saved SMAART measurements & use them as the starting point for FIR filter & … Read More

User Feedback

FIR Designer bridges the gap between complex system measurements and the production of the filters used for equalization and enhancement.

System tuning involves sculpting of the impulse response. While often done with a drag-and-drop DSP, a more powerful approach is to use the IR itself to produce the corrective filters.

We can now fix anomalies that we once had to live with.

Pat Brown

Synergetic Audio Concepts, Pro Sound Training

FIR Designer is a great tool.

The layout of the GUI and the workflow for developing loudspeaker presets are well thought out.

The built-in utility for translating filter parameters between different manufacturer’s DSP platforms is an incredible time saver.

The measurement averaging feature is indispensable, as is being able to define a target response, for truly optimizing a loudspeaker’s response.

Charlie Hughes

Biamp Systems

FIR Designer is the greatest piece of software to come to the pro-audio community in a decade.

The amount of man-hour time reduced is amazing moving from DSP to DSP. Every added IIR emulation makes it even easier to get a base system setup offline, before dialing in the house EQ on-site.

The last Jazz Ally job really proved the software out to the highest level. Ideal to have the workflow with the Symetrix DSP. Using good measurements, we did all the work inside FIR Designer offline; including IIR room corrections and FIR corrections for passive cabinets. Then it was just amazing to walk into the venue, plug it all in and achieve exactly our predicted spectrum around the room.

Mark DeArman

McCauley Sound

Nothing competes with FIR Designer’s UI and workflow. It’s a great tool!

The real-time preview enables parameter changes to be evaluated quickly.

Inbuilt measurement averaging is a helpful inclusion and the truly unique IIR filter conversion is really valuable when working across different processor brands.

Sam Feine

Sonos

(Eclipse Audio’s) FIR Designer software dramatically changes the equation for filter design in smaller spaces.

We’re able to take the required measurements and design the FIR filter in less than an hour.

Its a profoundly powerful piece of software.

Ryan McCauley

RMS Acoustics

I use FIR Designer M. It’s ideal for preset creation, fixed install tuning or on-the-spot live event jobs. It improves the overall response of both ‘solo’ systems & larger set-ups involving multiple sources.

It’s possible to match the magnitude & phase response between different product lines (& different manufacturers), set limiters and set specific crossover slopes (including some very exotic filter slopes).

Timo Beckman

Timo Beckman Geluidstechniek (Sound-engineering)

FIR Designer facilitates complete tuning of a DIY 5-way speaker, both on and off-axis, in less than a day. It’s easy, fast & accurate…it rocks!

I import transfer functions or impulse traces (from Smaart, ARTA or REW) into FIR Designer, and literally a few minutes later have a FIR file to check out.

The workflow allows the tuning of individual driver sections to meet specific target responses – for example, complementary linear-phase crossovers – along with tying the drivers together with correct polarites, levels, & delays. It’s quick to make several sets of FIR files for each driver, with various possible crossover points. Final speaker tuning becomes a simple matter of choosing which set of crossover points give the smoothest measured off-axis responses.

Mark Wilkinson

DIY Speaker Builder