Audio Processing in Python Part II: Exploring Windowing, Sound Pressure Levels, and A-Weighting Using an iPhone X

Raspberry Pi 3B+ acoustic analysis using Python. Audio recording and signal processing with Python, beginning with a discussion of windowing and sampling, which will outline the limitations of the Fourier space representation of a signal. Discussion of the frequency spectrum, and weighting phenomenon in relation to the human auditory system will also be explored. Lastly, the significance of microphone pressure units and conversion to the decibel will be briefly introduced and explained.

Audio Processing in Python Part I: Sampling, Nyquist, and the Fast Fourier Transform

Fourier Series has been widespread in applications of engineering ranging from heat transfer, vibration analysis, fluid mechanics, noise control, and much more. After evolutions in computation and algorithm development, the use of the Fast Fourier Transform (FFT) has also become ubiquitous in applications in acoustic analysis and even turbulence research. In this tutorial, I describe the basic process for emulating a sampled signal and then processing that signal using the FFT algorithm in Python. This will allow the user to get started with analysis of acoustic-like signals and understand the fundamentals of the Fast Fourier Transform.

Recording Audio on the Raspberry Pi with Python and a USB Microphone

How to Take a Screenshot on Raspberry Pi Using scrot

Raspberry PiJoshua HriskoSeptember 9, 2018SCROT, scrot, Raspberry Pi, Raspberry Pi Screenshot, Screenshot, screen shot, RPi Scrot, rpi scrot, rpi screenshot, install scrotComment

Arduino I2C OLED Display - Temperature and Humidity Display (SSD1306)

How to print temperature and humidity readings onto a 0.96 inch I2C OLED display. The device is DIYMall's inexpensive, high resolution (128x64 pixels), yellow and blue organic LED display that is designed for use with the Arduino platform. Together with a DHT22 temperature sensor, the tiny OLED screen will display real-time humidity and temperature data using an Adafruit library and an Arduino Uno board. This project can be expanded upon to print data from a wide array of sensors, and even grab data from the internet to print values for a smart and interactive display.

Airport Destination Mapper in Real Time

Data Analysis, Programming, Python, GISJoshua HriskoAugust 23, 2018Python, Python Programming, Python Real-Time, Python Live, Python Code, GIS, Geographic Information System, Python GIS, Basemap, Data VisualizationComment

How to Create a Rotating Globe Using Python and the Basemap Toolkit

Real-Time Graphing in Python Part II: Using a Word Cloud to Visualize Wikipedia Edits

Real-Time Graphing in Python

Interactive MTA/New York MetroCard Calculator to Avoid Overpaying

Data Analysis, LifestyleJoshua HriskoAugust 13, 2018MTA, New York City, MetroCard, Interactive, Calculator, MTA Calculator, MTA MetroCard, Python, Chart, Graphic, GIFComment

How To Make A GIF Using Python | An Application with The United States Wind Turbine Database

Data Analysis, GIS, Programming, PythonJoshua HriskoJuly 27, 2018Gifly, GIF, gif, Python, Data, Data Analysis, Algorithm, matplotlib, imageio, Github, Wind Turbine, Animation, PNG, Research, BasemapComment

Geographic Mapping from a CSV File Using Python and Basemap

Intraday Stock Analysis With Python Part 1 - Google Finance Mining and Visualization

Data Analysis, Programming, PythonJoshua HriskoJuly 10, 2018Google Finance, Plotly, Python, Intraday, Stocks, Stock Analysis, Stock Quote, Data Analysis, OHLC Plot, OHLC Chart, GitHub, Statistics, Profit Comments

Python Microcontroller: Getting Started with Adafruit's Trinket M0 and CircuitPython

In this tutorial I will cover one of the newest microcontroller interface languages, Python, and demonstrate Adafruit's powerful Trinket M0 microcontroller and its capabilities using Python as its programming language. Much of what is outlined below can be seen on Adafruit's website [UART communication, Trinket info, CircuitPython Basics].