Frame length is greater than FFT size #91

Hi!

So im getting this error when processing my files :
WARNING:root:frame length (1200) is greater than FFT size (512), frame will be truncated. Increase NFFT to avoid.

My code looks like:

def wav2logfbank(f_path, win_size, n_filters):
    (rate, sig) = wav.read(f_path)
    fbank_feat = logfbank(sig, rate, winlen=win_size, nfilt=n_filters)
    os.remove(f_path)
    np.save(f_path[:-3] + "fb" + str(n_filters), fbank_feat)

Where I just pass the path to a .wav file.

Is it because my audio framerate? If so, how can i find the correct nfft size?