FIR Design Tool(Shareware: 28US$)
News! 2/5 Now the executable is signed. The files are now packed in a ZIP file. |
This is shareware but you can freely use the trial version in which some functions are locked. Open the downloaded ZIP file and double-click the setup.exe to install. |
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You can unlock the limitation of functions which are limited in . |
To get support information, click here.
FIR Design Tool is a tool to interactively design and evaluate FIR digital filters with high-performance and high-stability. You can generate tap coefficients for FIR filters from the frequency characteristics you desire and evaluate the frequency characteristics calculated from the tap coefficients as well as you can apply the filter to signals in WAVE files to output filtered signals on the screen. In addition, the filtered signal can be saved to another WAVE file.
(Clicking above, you can get the real size.)
Main Features
- Frequency characteristics display on a large screen
- Magnify button enables you to confirm details of frequency characteristics.
- On-screen-text enables you to always monitor gains according to frequencies you desire.
- Saving/loading tap coefficients and filter design parameter to/form a file
- Filtering signals on WAVE files and displaying the result on the screen
- Filtering signals on WAVE files and storing the result to another file
- Evaluating tap coefficients calculated in another system via a coefficients file
- Defining arbitrary frequency characteristics to design filters
- Displaying tap coefficients and the window function
- Floating point data load/save brings accurate eavluation of highly attenuated signals.(New feature in 1.10)
Key Specifications
- Tap calculation method: Window function/Remez Exchange Algorithm
- Filter type: LPF/HPF/BPF/BEF
- Number of taps: 33 to 999
- Frequency characteristics display: Gain desired and gain/phase of the FIR filer
- Magnification: specifying the area by the mouse, Max. Ratios are 14.4(V), 25.6(H)
- Filtering and display size: 100 to 5000 samples
- Delay adjust: Shifting samples corresponding to the half of the sampling frequency
- Input/output file: 16-bit PCM RIFF format WAVE file(stereo or monaural)
- Tap coefficient accuracy: 64/32-bit Floating, 32/24/16-bit Fixed
- Saving filtered signals for a part of the source WAV file
- Specifying the channels to be filtered for saving a file: L+R/L Only/R Only
- File data format: WAVE 16bit PCM, WAVE EXTENSIBLE 64-bit IEEE Floating
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