CODEWITHSUNDEEP
c#audionaudio
Pete B
Pete B

Reputation: 69

FFT digital audio

I am using NAudio library for C#. I have a bye array of floating points from a .wav file. I would like put this through a FFT so I can find if a song has certain frequencies. For example a frequency which of a flute etc. Is there an FFT in NAudio and if so what does it take and output?

Upvotes: 1

Views: 4693

Answers (1)

Devarsh Desai
Devarsh Desai

Reputation: 6112

Here's a SO question which explains how to calculate FFT in NAudio.

Personally, I haven't been the biggest fan of NAudio for FFT implementations, I would rather use the following open-source solutions:

AForge.net. View the ComplexImage.cs for usage & FourierTransform.cs for implementation.

Math.NET's Iridium library (licensed under the LGPL so you are free to use it in commercial products).

Chris Lomont's C# Fast Fourier Transform.

MSDN also has a great discussion and a sample FFT implementation.

Upvotes: 1

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