Each horizontal slice of the spectrogram therefore represents ~94 Hz of bandwidth. You can increase resolution by using a larger FFT size (e.g. 1024, 2048), which allows for finer frequency detail ...

audio-visualization-fft-learning/ ├── 01_basic_visualization/ # 基本的な音響可視化 │ ├── 01_simple_waveform.ipynb │ ├── 02_amplitude_envelope.ipynb │ ├── 03_stereo_visualization.ipynb │ ├── ...