7 Jan 2018

Complementary Linear Phase Crossovers in FIR Designer

Unlike common Linkwitz-Riley filters, many other high & low-pass IIR &/or FIR crossover filters don’t sum to unity or have matched phase.

For a perfectly flat summed response, FIR Designer can calculate a COMPLEMENTARY HP (or LP) filter from the chosen LP (or HP) filter, when set to linear-phase.

The filter pair can be used for targets in multi-way designs, providing more crossover options. Works for Bessel, Butterworth, Chebyshev I & II & Elliptic filter prototypes. (FIR Designer also has a variety of linear-phase brick-wall crossover filters.)

FIR Crossover design within FIR Designer: Complementary linear phase crossover infographic, using Chebyshev.

 

17 Dec 2017

Smaart Trace File Support In FIR Designer & Creator

Smaart Trace (TRF) files with a specific FFT size can now be loaded into FIR Designer or FIR Creator (previously only MTW based Trace files were accepted). V2 license holders: check your email for a link to download the latest version. (BTW, FIR Designer 1.31.7 includes same update).

Get info on all supported loudspeaker measurement file formats (from any brand) here.

 

10 Dec 2017

FIR Creator Sample Rate Options

In response to feedback – especially from MiniDSP users – FIR Creator v1.1 now includes a 96 kHz sample rate option (in addition to 44.1 & 48). Full specs here.

FIR Creator 1.1 also includes new accelerated FFT’s, which are roughly 4x faster than the FFT’s in the original version 1. Every UI change triggers many 10’s of double-precision transforms so these updates translate into faster screen refreshing during filter design (the latest version of FIR Designer also includes this speed improvement).

Pic courtesy of Instagrammin

 

 

 

Loudspeaker wavelet created using FIR Designer - shown in Continuous Wavelet Transform view window.
26 Nov 2017

FIR Designer 2.1 – Continuous Wavelet Transform View

Today’s release of FIR Designer v2.1 includes a major new feature – a Continuous Wavelet Transform view

  • See a time/frequency map of the loudspeaker impulse response, with or without filtering.
  • Loudspeaker wavelet displays in “Second View” window (recently introduced with v2.0)
  • Updates in real time due to a unique, efficient implementation; instantly see the impact of changes made elsewhere in the workflow.
  • Includes adjustable wavelet width & view scaling.

To see all updates for v2.1, see the Release Notes

Learn more about FIR Designer or download a free demo (Windows or Mac).

Existing FIR Designer 1 license-holders are eligible for a USD $100 coupon towards the first-year purchase of FIR Designer 2; just contact us.

12 Nov 2017

New feature: FIR Designer ‘Second View’

The newly-updated FIR Designer 2 has a new feature called ‘Second View’. It shows an additional window for any workflow plot, which can be viewed on the primary display or on a different monitor/display. Do your edits & see the impact on whatever part of the workflow you choose, in real-time. FIR Designer’s Second View saves time in the filter design process.

 

FIR Designer Second View video:

 

 

5 Nov 2017

FIR Designer & FIR Creator are FIR Filter designers

[2019 Update: Build a complete loudspeaker preset for multiple channels simultaneously with the new FIR Designer M].

FIR Designer, the intuitive FIR filter design tool for loudspeakers, is evolving into TWO software tools – FIR Designer 2 and FIR Creator – to better meet the FIR filter design needs of manufacturers, installers, consultants & enthusiasts. Existing license-holders can keep using FIR Designer 1, although there will be no more feature updates (just bug fixes). We’re offering a USD $100 coupon to any existing FIR Designer 1 licensee who’d like to switch to FIR Designer 2.

Check out the table we’ve put together to compare all FIR filter designer products. FIR Creator is a pared-down option available for a one-off cost of USD $249 +tax. It will also be supported with bug fixes as needed. FIR Designer 2 is a fully-featured product offered as a USD $399+tax annual subscription [2019 Update: Price for FIR Designer is now $299. FIR Designer M costs $399]. FIR Designer 2 provides extensive functionality, flexibility and compatibility. Ongoing development & regular updates will ensure the latest advances in FIR filter design are always available to businesses.

 

Portion of table showing alternative FIR filter designer software tools from Eclipse Audio

 
27 Sep 2017

FIR Designer 1.31

Much has happened since the last post. Exporting now includes support for Linea Research products. Filter types have been expanded to include Neville Thiele notched crossovers (NTnc), Chebyshev and Elliptic high-pass and low-pass filters. Also plots now include zooming, a thicker plot-lines options, on/off for any plot trace and a Step Response view on the Export tab. For more details, check out the Release Notes page.
4 Jun 2017

FIR Designer 1.25

For EV and Dynacord processor users, version 1.25 can export FIR filters as GKF files for loading through IRIS. Plus, there are five new linear-phase brick-wall crossover filter prototypes, and constant Q when the editing is set to Q in Preferences. For more details, check out the Release Notes page.
8 Apr 2017

FIR Designer 1.22

Version 1.22 has many new features since the last 1.15 post. Measurement averaging, multi-window, import measurement smoothing, complement filters in Direct Design, IIR all-pass filters and IIR coefficient export, speed improvements, EASERA EFR file support and lots of UI improvements and bug fixes. For more details, check out the Release Notes page.

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