Skip to main content
Bioacoustics Beta

Return to Question

typo
Source Link
Noil
Noil
  • 4.2k
  • 1
  • 12
  • 48

I know that as FFT size is increased, spectral (frequency) resolution increases and temporal resolution decreases (and vice versa when FFT size is decreased).

According to: (Frequency Resolution) = (Sampling rate) / (# FFTs)

However, I am uncertain about how this relationship affects the the PSD (power spectral density). Does the accuracy of a PSD change with FFT size, and if so, does it do so in the same manner?

I know that as FFT size is increased, spectral (frequency) resolution increases and temporal resolution decreases (and vice versa when FFT size is decreased).

According to: (Frequency Resolution) = (Sampling rate) / (# FFTs)

However, I am uncertain about how this relationship affects the the PSD (power spectral density). Does the accuracy of a PSD change with FFT size, and if so, does it do so in the same manner?

I know that as FFT size is increased, spectral (frequency) resolution increases and temporal resolution decreases (and vice versa when FFT size is decreased).

According to: (Frequency Resolution) = (Sampling rate) / (# FFTs)

However, I am uncertain about how this relationship affects the PSD (power spectral density). Does the accuracy of a PSD change with FFT size, and if so, does it do so in the same manner?

Source Link
Chloe
Chloe
  • 3.7k
  • 6
  • 33

How does PSD accuracy change with FFT size?

I know that as FFT size is increased, spectral (frequency) resolution increases and temporal resolution decreases (and vice versa when FFT size is decreased).

According to: (Frequency Resolution) = (Sampling rate) / (# FFTs)

However, I am uncertain about how this relationship affects the the PSD (power spectral density). Does the accuracy of a PSD change with FFT size, and if so, does it do so in the same manner?