readme.txt

一个基于GPU运算的FIR滤波器程序

Real FIR by nVidia CUDA GPU Computing

2008.05.01 Koon

Unzip this package to C:\GPUFIR.
(or you have to edit convert.bat, FIRParamGen.bat, params\wavex.ini)

Requirement
Made / tested on Windows XP 32.
(I have xp64 / Vista64 but don't have Vista32. not sure)

nVidia CUDA available GPU card, and Driver
Microsoft VisualC++ runtime package

1. What is this

 CUDA FIR converter package.
 This package does not includes player.
 you can try to convert your wave file, then play with some extended wave format player like Microsoft Windows Media (9 or later), foobar, etc.

 This package has 2 program.

(1) FIRParamGen
 very straight FIR filter parameter generator.
 See FIRParamGen.bat for how to use.
 You should edit Freq0x.txt to change crossover frequency.

(2) WaveX01
 GPU FIR Converter.
 see convert.bat for how to run.
 params\wavex.ini stores information for this program.

 This is not a FFT or frequency domain FIR converter.
 By CUDA GPU, I can calculate whole 44.1kHz sample with 8192 FIR tap.

2. Outputs

 Out_Coeff0x.txt : FIR Coefficients.
 Out_Freq0x.txt : FIR Filter Frequency Responce.
 Out_Kaiser0x.txt : kaiser windowing output.

3. Contact

visit diyaudio thread to share information. 
http://www.diyaudio.com/forums/showthread.php?s=&threadid=120463