Download area

Note: A free Acrobat  ( PDF) Reader can be downloaded from http://www.adobe.com/prodindex/acrobat/readstep.html.

CATT-Acoustic™
(for Windows 95/98/ME or NT 4.0/2000/XP/VIsta)

v8.0 demo download

name

company/organization affiliation or other indication of professional interest or background in acoustics (university acoustics students give university and department name)

postal address

Note 1: previous demo testers can use an originally supplied Xtra32.DAT key also with an updated demo but an old Xtra32.DLL will not work, a new demo request has to be made.

Note 2: for those only interested just in viewing CATT PLT- and OGL-files the standalone viewers can be downloaded instead.

Note 3: in a few cases it has happened that the separate data-installer did not start when CATT-Acoustic was run for the first time (calculations will then fail since no Surface properties library can be found). If so, close CATT-Acoustic and run the installed cattdemo_data.exe and when restarting CATT-Acoustic select File|Preferences and confirm the CATTDATA folder and select your Prefs.

synaudcon_catt-a.pdf

20-JAN-2004, 2.92 MB, Syn-Aud-Con Newsletter,  vol 32. No.1 "Predicting acoustical performance with CATT-A", Pat Brown. Note: this PDF uses features that requires Acrobat Reader v5 or higher, see download link above for an update.

DLL Directivity Interface (DDI) info material
 

Viewgraphs

623 kB, from the 108th AES convention in Paris Feb 19-22, 2000 describing the CATT DDI including verification examples.

DDI White Paper

07-SEP-1998, 39 kB, describing the DDI API basic principles. This document is now more of historical interest, and loudspeaker manufacturers with array products can instead request an up-to-date whitepaper by e-mail regarding the various options to create DDI modules. A more recent development (late 2003) offers a very simple and clean way to implement a DLL where the manu- facturer only needs to write the core array modeling code without having to learn the details of the DDI.

The FIReverb Suite™ 4th Edition
(for Windows 95/98/ME or NT 4.0/2000/XP/Vista)

To receive a 30 days free trial-license the following information IS REQUIRED:

• name
• company/organization (if applicable)
• postal address

• phone
• www page
• your background and anticipated use of The FIReverb Suite™

Info-folder:

FIReverb A4.PDF	27-JUN-2003, 483 kB, A4 format
FIReverb US.PDF	27-JUN-2003, 482 kB, US-letter format

The folders are designed for color printing, but print well also in grayscale, and preferrably at 600 dpi.

Free software

GratisVolver™

• a convolver for mono, stereo or 4-channel (typically B-format) WAV-file impulse responses (IRs)
• IR display (lin/log, %/dB-scale, time-scale, fast IR draw option, display re full scale, graph copy)
• separate modes for IR convolving and deconvolving wet sweeps
  
• WAV-file playing (individual playing of input file, IR and processed file)
• a self-contained small software (86 kB) specially made to encourage listening to and convolving with measured room IRs in WAV format.
• can also be used to "deconvolve" measured sweeps (information and sweep-file links included)
  
• Note: for CATT-Acoustic users and demo testers: place GratisVolver™ in your CATT folder and with a recent version it will be listed on the File|External CATT Tools menu
  

GratisWavPlayer™

• a no-frills WAV-file player for mono and stereo WAV-files
• plays indivudual files, A/B or via a playlist
• optinal looping (v1.0b)
  
• a self-contained small software (38 kB) specially made to encourage simple listening tests.
  
• Note: for CATT-Acoustic users and demo testers: place GratisWavPlayer™ in your CATT folder and with a recent version (>= v8.0f) it will be listed on the File|External CATT Tools menu
  

Free viewers for the CATT PLT and OGL formats