DSP_1for2
01/16/05
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 DSP_1for2 is a Digital Signal Processing library (DLL), designed for Windows programmers. It's written in assembly for compact code size & speed's sake.

 

Features
  • Fast Fourier Transform (FFT) and Inverse Fast Fourier Transform (IFFT)
  • Digital Filters (FFT & IFFT in a single package)
  •  FFT and filtering for two signals simultaneously (performance gain)
  • Radix 4 FFT-based, which is a quite efficient algorithm, especially for Software-based FFT.
  • Support for both integer (PCM) & floating-point time-domain signals.
  • Optimized for Pentium III (still a basic optimization level).

 
Download  DSP_1for2 Version 1

Download Documentation

Download Demo Programs

 
Note: For the demo programs to run, put the DLL (DSP_1for.dll) either in the same folder as the Demo, or in the Windows System32 folder. You can also add the DLL path to the path environment variable.

 
Demo Programs Screenshots

 
FFT Demo

Click to Enlarge

 Filter Demo

Click to Enlarge

 

Next Version

Next version is almost done! However, I am not yet ready to publish it (documentation is not yet completed).

Next version supports multi-channel audio signals, better memory usage, more simple structures.

 

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This site was last updated 01/16/05

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