Use either FIR Designer or FIR Creator EX to create a complete loudspeaker preset, with the Gain/Polarity/Delay options now available in the filter creation workflow. On the ‘Export’ tab, save the gain, polarity, delay and IIR filters in a new Summary file, which – in combination with the FIR filter file – contain everything needed for a complete DSP channel signal chain. Use a single chain for filtering a full bandwidth loudspeaker, or create multiple DSP channel signal chains to make multi-way loudspeaker presets.
|SUPPORTED IN…||FIR FILTER SAMPLE RATES|
|FIR Creator||44.1, 48 & 96 kHz|
|FIR Creator EX||12, 24, 44.1, 48 & 96 kHz|
|FIR Designer 2||12, 24, 44.1, 48, 96 & 192 kHz|
See a list of FIR-capable products (amplifiers & speaker processors).
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.)
Combine up to 200 imported speaker measurements into a single average measurement, to use as an input into FIR Designer’s filter design workflow.
This newly-released tutorial video demonstrates how to use FIR Designer for loudpeaker measurement averaging.
Update August 2018: Check out the stand-alone Averager application.
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.
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).
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
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.
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:
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.
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.