Short: FIR Filter Designer V1.2 Author: harald.zottmann@ntc.nokia.com Uploader: harald.zottmann@ntc.nokia.com Version: 1.2 Type: misc/sci Replaces: misc/sci/FIRDesign* FIR Filter Designer =================== This is the fourth Aminet release of the FIR FilterDesigner. The program designs optimized Finite Impulse Response Filters. Amiga OS 2.x is required. The program requires a minimum Workbench screen size of 640x400. The FIR Filters designed by the program FIR Filter Designer can be loaded by the program AudioLab16 from Maurizio Ciccione. AudioLab16 can be found on the Aminet in the directory /mus/edit. The problem of designing finite impulse response (FIR) digital filters experienced great activity in the early 1970`s. Most of this work was directed at the problem of optimal filter design, in the weighted Chebyshev sense. The algorithm for this program, by McClellan, Parks and Rabiner, will design the optimal Chebyshev approximation for linear phase filters. The Chebyshev optimization is done very efficiently by means of the Remez exchange algorithm, and this particular FIR filter design program has found wide use. History ======= Date Version Type Comments ---- ------- ---- -------- 20/07/96 V1.20 Release Fourth AMINET Release - ToolType support - Filterlength now up to 512 taps - Internal improvements - Displays floating point errors - View log file with external viewer - Displays also the corrected phase 01/05/96 V1.10 Release Third AMINET Release - Versions for: MC 68000 MC 68020 MC 68040 - Updated the installer script - Now compatible with AudioLab16 - Grids in the Prism window - Some redesigns and optimizations - Fixed Bug with too small workbench 29/11/95 V1.01 Release Second AMINET Release - Fixed several Enforcer Hits - Fixed Bug with not updating gadgets - Recompiled with SAS/C V6.56 - Less Shareware Requesters - Installer Script - Added Pattern in Filerequester - More Examples 21/07/95 V1.00 Release First AMINET Release Other programs worth looking at =============================== The Video & CD-Archive on the Aminet /text/print/VCArchive manages your MCs, CDs & Videos. It prints labels and sorted lists and is tested by many Amiga magazines. Have a look !!! ============================= Archive contents ============================= Original Packed Ratio Date Time Name -------- ------- ----- --------- -------- ------------- 588 121 79.4% 20-May-94 14:56:20 +Bandpass.FIR 588 81 86.2% 20-May-94 15:12:44 +Differentiator.FIR 1375 664 51.7% 15-Jul-96 21:52:04 +DISCLAIMER.TXT 71556 36750 48.6% 17-Jul-96 20:12:04 +FIRDesigner 18588 6413 65.4% 17-Jul-96 20:02:14 +FIRDesigner.guide 468 231 50.6% 16-Jul-96 21:37:24 +FIRDesigner.guide.info 6617 520 92.1% 16-Jul-96 21:37:48 +FIRDesigner.info 704 355 49.5% 16-Jul-96 21:37:24 +FIRDesigner.install.info 1391 504 63.7% 16-Jul-96 21:37:26 +FIRDesigner.readme.info 66516 35833 46.1% 17-Jul-96 19:59:12 +FIRDesigner_040 588 91 84.5% 29-Nov-95 19:24:40 +Highpass.FIR 588 85 85.5% 20-May-94 15:14:10 +Hilbert.FIR 588 92 84.3% 29-Nov-95 19:23:04 +Lowpass.FIR 588 100 82.9% 29-Nov-95 19:28:32 +Multipass.FIR 588 101 82.8% 29-Nov-95 19:34:10 +Notch.FIR 673 319 52.6% 16-Jul-96 21:37:26 FIRDesigner.info 589 113 80.8% 26-Jun-96 18:55:40 +Bandpass128.FIR 1415 529 62.6% 16-Jul-96 21:37:26 +DISCLAIMER.TXT.info 5997 1638 72.6% 17-Jul-96 19:27:38 +FIRDesigner.install 3039 1201 60.4% 16-Jul-96 22:55:56 +FIRDesigner.readme 66548 35496 46.6% 17-Jul-96 20:09:10 +FIRDesigner_020 1637 478 70.8% 15-Jul-96 19:28:34 +ORDERFORM.TXT 1415 527 62.7% 16-Jul-96 21:37:26 +ORDERFORM.TXT.info -------- ------- ----- --------- -------- 252644 122242 51.6% 18-Jul-96 10:22:10 23 files