Dear MNE users,

I would like to use compute_source_psd function. If my sampling rate is 256 Hz, what it the correct value for new_sfreq?

In the code as follows, new_sfreq is 90, in this case, n_fft becomes 360. What number is your recommend for new_sfreq in the case of sampling rate is 256Hz?

new_sfreq = 90.

n_fft = next_fast_len(int(round(4 * new_sfreq)))

noise_cov = mne.compute_raw_covariance(raw)

inverse_operator = mne.minimum_norm.make_inverse_operator(

raw.info, forward=fwd, noise_cov=noise_cov, verbose=True)

stc_psd, sensor_psd = mne.minimum_norm.compute_source_psd(

raw, inverse_operator, lambda2=lambda2,

n_fft=n_fft, dB=False, return_sensor=True, verbose=True)

Thanks,

Kyu