adamstirtan/pypentatonic

Demonstrates how to play the pentatonic scale programmatically using Python and PyAudio

Sine Wave Generator and Pentatonic Scale Player

This Python code generates sine waves and plays the pentatonic scale using the pyaudio library.

Requirements

• Python 3.x
• pyaudio library

Installation

1. Clone or download the code from the repository.
2. Install portaudio, a dependency of pyaudio using the the following command:

brew install portaudio

3. Install the required pyaudio library using the following command:

pip install pyaudio

Usage

1. Run the Python script sine_wave_pentatonic_scale.py.
2. The script will generate sine waves for each note in the pentatonic scale and play them.
3. The duration of each note is set to 1 second.
4. Make sure your computer's audio output is configured correctly to hear the generated sound.

Example

import numpy as np
import pyaudio

# Set up the audio stream
p = pyaudio.PyAudio()
stream = p.open(format=pyaudio.paFloat32,
             channels=1,
             rate=44100,
             output=True)

# Define the pentatonic scale frequencies
pentatonic_scale = [261.63, 293.66, 329.63, 392.00, 440.00, 523.25]

# Generate and play the sine waves
for freq in pentatonic_scale:
 duration = 1.0  # Duration in seconds
 t = np.linspace(0, duration, int(duration * 44100), False)
 samples = np.sin(2 * np.pi * freq * t)
 stream.write(samples.astype(np.float32).tobytes())

# Clean up the audio stream and terminate PyAudio
stream.stop_stream()
stream.close()
p.terminate()