- CF1,
CF2: The Common Loudspeaker File Format (CLF). The CLF was released
announced Apr 15 2005, CATT-Acoustic
supports the CLF format since May 25 2005. For a background to the CLF,
and download of a free viewer with sample files, and a trial authoring
version go to the CLF web page: http://www.clfgroup.org.
- SD2
based on a general DLL Directivity Interface
(DDI). SD2 offers array modeling (very high resolution distance
dependent directivity) and can handle extended near-fields.
DDI lets a manufacturer offer high-resolution data even before
a new file-format is agreed on. It also offers data hiding and hiding
of intellectual property (e.g. for DSP-controlled arrays or other special
designs). For further details download a DDI white paper in PDF-format
and the 108th AES convention (Paris Feb 19-22, 2000) workshop presentation
viewgraphs. The CATT DDI has been available since 1998
but only during 2001 that competing software (even those specialized in
sound system design) are realizing that a similar interface is required
to handle arrays properly.
Current DDI-modules are: - CATT_Generic for general not brand-specific array modeling: a module for
- general array modeling e.g. Duran Audio TARGET arrays with FIR-filter weights (each transducer is described by its 3D location, SD0, SD1, CF1 or CF2 directivity pattern, 3D aim, octave-band or FIR-filter weights, delay, optional absolue calibrated). Here also the SD3 5º format with optional phase information can be used.
- distance-dependent 3D-balloon interpolation (can speed up
full-blown array calculations with 10-100 times while retaining the nearfield
handling at the expense of a 10º resolution, to be used for
faster initial aiming).
- artifical sector-based directivities to be used with anechoic sound recorded in sectors surrounding e.g. a grand piano or a string quartet
- CATT_Generic has an open text-based interface but includes
a way to save am encrypted settingsfile to prevent altering.
- for Duran Audio's AXYS Intellivox series DSP-controlled columns arrays (including all beam-steering options)
- for L-Acoustics' V-DOSC and dV-DOSC arrays (released 29-AUG- 2001, absolute calibration update MAR-2004)
- for Nexo Geo line arrays (Geo S8 released 27-JUN-2003. Geo T released MAR-2004, Geo D released OCT-2006)(Req. at least v8.0b:2), Geo S12 released 7-OCT-2010.
- for
Outline Butterfly
line arrays (released
MAR-2004)(Req. at least v8.0b:2)
- for ActiveAudio's StepArray DSP-controlled columns arrays SA100P, SA180P, SA180S, SA250P, SA250S, SA400P, SA400P , SA180S (updated 5-JUL-2011 with the Ray-On 100 array)
- for PanBeam DSP-conrolled column arrays (released 11-JUL-2007, P32 and PB40 added 18-SEP-2007), requires v8.0g
- for Renkus-Heinz Iconyx DSP-controlled column arrays.
- for d&b audio J-series curved line arrays
- for Ateïs International Messenger column arrays (released 10-FEB-2010)
- for Tannoy QFlex column arrays (released 19-AUG-2010)
- SD1 based on interpolation from measured 10º full space data. This kind of data can be requested from most loudspeaker manufacturers (to a high degree this will now be replaced by the CLF).
- SD0 based on interpolation from 15º horizontal and vertical polar diagrams
- SD3
5º full space data optionally
with phase (for array modeling via the DDI)
|
sample graphics/screen-shots SD0 and SD1 |
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sample graphics/screen-shots DDI-interface SD2 |