Spectrograms of heartbeat audio
Spectral engineering is one of the most common techniques in machine learning for time series data. The first step in this process is to calculate a spectrogram of sound. This describes what spectral content (e.g., low and high pitches) are present in the sound over time. In this exercise, you'll calculate a spectrogram of a heartbeat audio file.
We've loaded a single heartbeat sound in the variable audio.
Latihan ini merupakan bagian dari kursus
Machine Learning for Time Series Data in Python
Latihan interaktif langsung praktik
Cobalah latihan ini dengan melengkapi kode contoh ini.
# Import the stft function
____
# Prepare the STFT
HOP_LENGTH = 2**4
spec = ____(audio, hop_length=HOP_LENGTH, n_fft=2**7)