# Transcribing Piano Rolls, the Pythonic Way

In this post I use Fourier transforms to revive a forgotten Gershwin piano piece.

# Making GIFs From Video Files With Python

Sometimes producing a good animated GIF requires a few advanced tweaks, for which scripting can help. So I added a GIF export feature to MoviePy, a Python package originally written for video editing.

# Interception of a Linear Trajectory With Constant Speed

In this post I show how helpful trigonometry can be when it comes to catching rabbits.

# Placing People So That Everyone Meets

I will solve a stupid management problem using old mathematics and Google.

# Delay Differential Equations in Python

I wrote ddeint, a simple module/function for solving Delay Differential Equations (DDEs) in Python. It is not very fast, but very flexible, and coded in just a few lines on top of Scipy’s differential equations solver, odeint.

# Read and Write Audio Files in Python Using FFMPEG

This article shows how easy it is to read or write audio files in a few lines Python, by calling the external software FFMPEG through pipes. If you want a battle-tested and more sophisticated version, check out my module MoviePy. Check also that other article for the same with video files.