Hello,

I have some strange issues with dsp::FFT. It looks like it’s my wrong interpretation of result frequency range.

I use:

`dsp::FFT::performFrequencyOnlyForwardTransform(float* inputOutputData);`

And I get result in `inputOutputData`

.

The main question is what is the lowest possible frequency in bin 0 (I mean `inputOutputData[0]`

)

I thought that the lowest frequency bin is equal to:

```
sampleRate / fftSize
```

But then for really big `fftSize`

such as 65536 or higher and for sample rate 44100 Hz I get the lowest freq equal:

```
44100 / 65536 = 0.6729 Hz
```

which is less than 1 Hz.

It confuses me because many times I’ve heard the lowest reasonable frequency for FFT is 1 Hz.