If sampling rate = 16000 (samples/sec), and the bandwidth = 250 Hz, window length = 64 samples (points)
If sampling rate = 16000 (samples/sec), and the bandwidth = 40 Hz, window length = 400 samples (points)
Below are the spectrogram settings in WaveSurfer for bandwidth and window length.
- For CD quality they use 44100 sampling speed.
- For us, we typically use 16000 sampling seed.
- So a sample of 40 Hz. F = 1/T. 40 = 1/.025. So we measure at 16000 sampling rate. So 16000 * .025 = 400. This means that we would need 400 pts to specify what the filter is.