When working with audio frequency analysis in Python, there are several ways to approach the problem. In this article, we will explore three different solutions to the given question.

Solution 1: Using the Librosa Library

The Librosa library is a powerful tool for audio analysis in Python. It provides various functions and methods to extract useful information from audio files. To solve the given question using Librosa, we can follow these steps:

import librosa

# Load the audio file
audio_file = 'path/to/audio/file.wav'
audio, sr = librosa.load(audio_file)

# Perform frequency analysis
frequency_analysis = librosa.stft(audio)

# Get the magnitude spectrogram
magnitude_spectrogram = librosa.amplitude_to_db(abs(frequency_analysis))

# Print the result
print(magnitude_spectrogram)

This solution utilizes the Librosa library to load the audio file, perform frequency analysis using the Short-Time Fourier Transform (STFT), and convert the amplitude spectrogram to decibels. The result is then printed.

Solution 2: Using the SciPy Library

The SciPy library is another popular choice for audio analysis in Python. It provides various functions for scientific computing, including signal processing capabilities. To solve the given question using SciPy, we can follow these steps:

from scipy.io import wavfile
import numpy as np

# Load the audio file
audio_file = 'path/to/audio/file.wav'
sample_rate, audio = wavfile.read(audio_file)

# Perform frequency analysis
frequency_analysis = np.fft.fft(audio)

# Get the magnitude spectrum
magnitude_spectrum = np.abs(frequency_analysis)

# Print the result
print(magnitude_spectrum)

This solution uses the SciPy library to read the audio file, perform frequency analysis using the Fast Fourier Transform (FFT), and calculate the magnitude spectrum. The result is then printed.

Solution 3: Using the PyDub Library

The PyDub library is a simple and easy-to-use audio processing library for Python. It provides a high-level interface for manipulating audio files. To solve the given question using PyDub, we can follow these steps:

from pydub import AudioSegment

# Load the audio file
audio_file = AudioSegment.from_wav('path/to/audio/file.wav')

# Perform frequency analysis
frequency_analysis = audio_file.fft()

# Get the magnitude spectrum
magnitude_spectrum = frequency_analysis[:len(frequency_analysis) // 2]

# Print the result
print(magnitude_spectrum)

This solution utilizes the PyDub library to load the audio file, perform frequency analysis using the FFT method, and extract the magnitude spectrum. The result is then printed.

After analyzing the three solutions, it can be concluded that Solution 1 using the Librosa library is the better option. Librosa provides a comprehensive set of functions specifically designed for audio analysis, making it easier to perform complex tasks such as frequency analysis. Additionally, Librosa offers additional features like beat tracking and pitch estimation, which can be useful in audio analysis applications.