https://github.com/kleydon/fir-filter-demo-cpp

User friendly DSP high/low/band-pass windowed sync filter, implemented in C++.
https://github.com/kleydon/fir-filter-demo-cpp

band-pass band-pass-filter cplusplus cplusplus-11 cplusplus-basic cpp dsp fast filter fir fir-filter high-pass high-pass-filter high-performance low-pass low-pass-filter sync user-friendly window

Last synced: about 1 month ago
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User friendly DSP high/low/band-pass windowed sync filter, implemented in C++.

• Host: GitHub
• URL: https://github.com/kleydon/fir-filter-demo-cpp
• Owner: kleydon
• License: mit
• Created: 2019-05-09T00:34:50.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2019-05-10T00:20:09.000Z (about 6 years ago)
• Last Synced: 2025-04-10T01:08:07.408Z (about 1 month ago)
• Topics: band-pass, band-pass-filter, cplusplus, cplusplus-11, cplusplus-basic, cpp, dsp, fast, filter, fir, fir-filter, high-pass, high-pass-filter, high-performance, low-pass, low-pass-filter, sync, user-friendly, window
• Language: C++
• Homepage:
• Size: 229 KB
• Stars: 27
• Watchers: 1
• Forks: 10
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# FIR-Filter, C++

Easy-to-use DSP filter code, written in C++, with low, high, and band-pass variants.

Implements a windowed sync FIR using the overlap-and-add method.

## Usage:

```

FIRFilter* filter = &FIRFilter::getSingleton();

    

//Low Pass:

filter->initializeAsLowPass(44100.0f, //sample rate

                            256, //frame length

                            4000.0f, //cutoff frequency

                            1000.0f); //transition bandwidth

    

//High Pass:

filter->initializeAsHighPass(44100.0, //sample rate

                             256, //frame length

                             1000.0f, //cutoff frequency

                             1000.0f); //transition bandwidth

    

//Band Pass:

filter->initializeAsBandPass(44100.0, //sample rate

                             256, //frame length

                             500.0f, //low cutoff frequency

                             200.0f, //low transition bandwidth

                             4000.0f, //high cutoff frequency

                             200.0f); //high transition bandwidth

//Demo/Test:

float frequency = 4500.0f;

float duration = 0.010f;

filter->test(frequency, duration);

//filter->test() calls:

applyFilter(const float inputFrameSamples[],

            float outputFrameSamples[]) 

//...which can be in-place w.r.t. input and output.

```