Visualizing audio

import os
from splaat.audio.load import load_audio
from splaat.plot.spectrogram import plot_spectrogram

audio_directory = os.path.join(os.path.dirname(os.path.abspath("")), "_static", "audio")
audio, sr = load_audio(os.path.join(audio_directory, "mfa.wav"))

ret = plot_spectrogram(audio, sr, channel=0)

ret = plot_spectrogram(audio, sr, channel=1)

ret = plot_spectrogram(audio, sr, channel=0, start=0.4, end=0.6, figure_width=20)
ret = plot_spectrogram(audio, sr, channel=1, start=0.4, end=0.6, figure_width=20)