Computing a Long-Term Average Spectrum#
In this example, we want to compute a LTAS of audio data over a long period of time.
For the sake of the example, the audio will not actually span over a long time period, but LTASes are meant to be used in such case.
This LTAS will:
Start at the begin of the first audio file
End at the end of the last audio file
Be downsampled at
24 kHz
The FFT used for computing the spectrograms will use a
1024 samples-long hamming window.The
hop of LTAS ShortTimeFFT objects is forced to the size of the window (no overlap).