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Artificial Intelligence with Python

You're reading from   Artificial Intelligence with Python A Comprehensive Guide to Building Intelligent Apps for Python Beginners and Developers

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Product type Paperback
Published in Jan 2017
Publisher Packt
ISBN-13 9781786464392
Length 446 pages
Edition 1st Edition
Languages
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Author (1):
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Prateek Joshi Prateek Joshi
Author Profile Icon Prateek Joshi
Prateek Joshi
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Toc

Table of Contents (17) Chapters Close

Preface 1. Introduction to Artificial Intelligence FREE CHAPTER 2. Classification and Regression Using Supervised Learning 3. Predictive Analytics with Ensemble Learning 4. Detecting Patterns with Unsupervised Learning 5. Building Recommender Systems 6. Logic Programming 7. Heuristic Search Techniques 8. Genetic Algorithms 9. Building Games With Artificial Intelligence 10. Natural Language Processing 11. Probabilistic Reasoning for Sequential Data 12. Building A Speech Recognizer 13. Object Detection and Tracking 14. Artificial Neural Networks 15. Reinforcement Learning 16. Deep Learning with Convolutional Neural Networks

Synthesizing tones to generate music

The previous section described how to generate a simple monotone, but it's not all that meaningful. It was just a single frequency through the signal. Let's use that principle to synthesize music by stitching different tones together. We will be using standard tones like A, C, G, F, and so on to generate music. In order to see the frequency mapping for these standard tones, you can check out this link: http://www.phy.mtu.edu/~suits/notefreqs.html . Let's use this information to generate a musical signal.

Create a new Python file and import the following packages:

import json 
 
import numpy as np 
import matplotlib.pyplot as plt 
from scipy.io.wavfile import write 

Define a function to generate a tone based on the input parameters:

# Synthesize the tone based on the input parameters 
def tone_synthesizer(freq, duration, amplitude=1.0, sampling_freq=44100): 
    # Construct the time axis  
    time_axis = np.linspace(0, duration, duration...
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