I want to use kaiser window that's part of numpy for drawing spectrogram
specgram(x, NFFT=256, Fs=2, Fc=0, detrend=mlab.detrend_none,
window=mlab.window_hanning, noverlap=128,
cmap=None, xextent=None, pad_to=None, sides='default',
scale_by_freq=None, **kwargs)
*window*: callable or ndarray
A function or a vector of length *NFFT*. To create window
vectors see :func:`window_hanning`, :func:`window_none`,
:func:`numpy.blackman`, :func:`numpy.hamming`,
:func:`numpy.bartlett`, :func:`scipy.signal`,
:func:`scipy.signal.get_window`, etc. The default is
:func:`window_hanning`. If a function is passed as the
argument, it must take a data segment as an argument and
return the windowed version of the segment.
So I tried:
Pxx, freqs, bins, im = specgram(x, NFFT=1024, Fs=fs, window=kaiser,
noverlap=2)
TypeError: kaiser() takes exactly 2 arguments (1 given)
Pxx, freqs, bins, im = specgram(x, NFFT=1024, Fs=fs, window=kaiser(x, 8),
noverlap=2)
ValueError: The truth value of an array with more than one element is
ambiguous. Use a.any() or a.all()
Pxx, freqs, bins, im = specgram(x, NFFT=1024, Fs=fs, window=blackman,
noverlap=2)
ValueError: The truth value of an array with more than one element is
ambiguous. Use a.any() or a.all()
Can someone help?
Thanks
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