FIR Creator & FIR Creator EX
Create finite impulse response (FIR) filters and mixed FIR + IIR filtering solutions for loudspeakers.
Load filters into any FIR capable speaker processor or amplifier. Advanced Direct-to-Processor function available for some brands (EX only).
Build a complete loudspeaker preset (DSP signal chain) by generating Summary Output files in combination with FIR &/or IIR filter files (EX only).
Features
- Intuitive, fast workflow from impulse response import through to FIR filter export
- Continuous filter calculation and error display as parameters are updated
- Two workflows
- FIR filter design from a loudspeaker measurement
- Direct FIR design, without a measurement
- FIR only or mixed IIR & FIR design
- FIR Filter sample rates: 44.1, 48 and 96 kHz (plus 12 and 24 kHz for FIR Creator EX)
- IIR filters (up to 8)
- Bandpass, low and high shelf
- Low-pass and high-pass Bessel, Butterworth, Chebyshev I & II, Elliptic, Linkwitz/Riley & Neville Thiele notched crossover.
- IIR coefficient export: regular transfer function and MiniDSP formats.
- IIR filter modes with brand-specific parameter limits
- FIR Creator: General (all of the above filter types)
- FIR Creator EX: Generic, Biamp Tesira, BSS, Lake, Linea Research, Marani, Powersoft, QSC Q-Sys, Symetrix and Legacy (previously ‘General’)
- FIR filter design:
- Magnitude adjustment using (up to 8) common filter prototypes above, and with minimum, linear and maximum phase options
- Keele/Horbach crossovers
- Linear-phase brick-wall crossovers
- Phase adjustment using minimum and maximum phase all-pass filters, including a unique 4th order all-pass parametric phase filter
- Automatic magnitude correction with smoothing (1 band)
- Automatic phase correction with smoothing (1 band)
- Magnitude adjustment using (up to 8) common filter prototypes above, and with minimum, linear and maximum phase options
- Import measurement resampling (measure at one sample rate and creator filters for any sample rate)
- Target responses:
- User-defined parametric magnitude target with 2 slope segments,
- Impulse response target from file (with options to use magnitude only or magnitude and phase), or
- Both user-defined and file response combined
- SMAART® Control for live measurement streaming and capture directly into FIR Creator EX.
- Comprehensive range of measurement file formats (TXT – magnitude/phase/coherence, TXT – samples, TXT – Klippel, WAV, STO – SysTune Overlay, TRF – SMAART Trace, ETM – Easera measurement, SPK – Monkey Forest/FourAudio and more)
- Export formats include text (inc. CSV), Binary & WAV (FIR Creator EX also adds Powersoft, Linea Research & EV/Dynacord). See processors and amplifiers for more details
- Processor gain, polarity & delay settings (EX only)
- Generate complete loudspeaker presets via the processor channel summary setting export option (EX only)
- Direct-to-processor functionality (EX only):
- To LAKE PLM & D series amplifiers and LM series processors. Requires the FIR Designer LAKE plugin and the LAKE FIR 3-way module.
- To Powersoft X, Ottocanali, Quattrocanali and DueCanali series amplifiers. Works via an XML file which can be loaded into the amplifier’s “Speaker EQ” or “Output EQ”.
- Optionally side-load pre-existing FIR filters (with automatic sample-rate-conversion, if necessary) from other programs for transfer to LAKE &/or Powersoft. Rewindow longer FIR filters to the LAKE & Powersoft tap limits.
- Moveable license: deactivate then reactivate on a new computer.
- macOS and Windows versions. (Windows 10 & above. Or macOS 10.14 & above)
Compare FIR Designer, FIR Creator / EX features on our Filter Software Comparison Table.
Examples
Target File with Non-flat Phase
Direct Design Mode
SMAART is a registered trademark of Rational Acoustics LLC, Connecticut, USA.