Moon Landing Speech Analysis

by Yiran Gu

This project is conducted in order to analyze the speech given by Neil Armstrong while he made his steps on the moon. While he was saying 'It's a small step for man, one giant leap for mankind', people were curious if he had said the 'a' in between 'for' and 'man'.

We will need the original audio tract to play with. This is the link where I downloaded the mp3 file.

["https://archive.org/details/TheMoonLanding"]

The audio is 63 sec long, so I cut it with an audio edit software to get the 'for [a] man' part, and named it with for[a]man.mp3.

Afterwards, I used audioread command to read the mp3 file into the matlab. This command returns two variables, which are x and fs. x is the read file, while fs is a returned sampling frequency. If you are trying to play x directly, you won't be able to hear the correct audio tract. Instead, sound(x,fs) would be replace sound(x).