WAV file creator and parser as explained in the related video

wav_creator.py

import wave
import struct
import math

# Audio parameters
sample_width = 2
sample_rate = 44100
duration = 5

# Define the melody
melody = [
    (440, 0.5),  # A4
    (523.25, 0.5),  # C5
    (587.33, 0.5),  # D5
    (659.25, 0.5),  # E5
    (587.33, 0.5),  # D5
    (523.25, 0.5),  # C5
    (440, 0.5),  # A4
]

# Create a new WAV file
with wave.open('output.wav', 'wb') as wav_file:
    wav_file.setnchannels(1)  # Mono audio
    wav_file.setsampwidth(sample_width)
    wav_file.setframerate(sample_rate)

    num_frames = int(sample_rate * duration)

    for freq, amp in melody:
        # Generate audio samples for each note
        num_note_frames = int(sample_rate * amp)
        for frame in range(num_note_frames):
            t = float(frame) / sample_rate
            value = int(amp * 32767.0 * math.sin(2.0 * math.pi * freq * t))

            # Pack the sample into the appropriate format
            packed_value = struct.pack('<h', value)

            # Write the sample to the WAV file
            wav_file.writeframesraw(packed_value)

print("WAV file created!")

wav_parser.ipynb