The Morse code challenge

This is the second challenge I’m publishing. Let’s hope it gets more participation than the previous one (just one answer).

Today is the anniversary of Samuel Morse’s birth, so the challenge has 2 parts.

The first part is the simplest: write a function that takes a string of dots and dashes and prints the corresponding letters.

If the function is called CodigoMorse(), then the result of

CodigoMorse(".. . . . - .– .-. .- .-.. . .. .- …... …—..-.-..-.-..") = “La naturaleza del software”.

The second part is to build a program that plays sounds representing Morse code.

The idea is that the program takes a sentence and emits beeps through the computer’s speaker representing the dots and dashes.

Keep in mind that Morse code is a rhythmic system, with the following rules: if the dot is the basic unit, then a dash lasts as long as 3 dots, between symbols there is a pause lasting 1 dot, and between words there is a pause of 7 dots.

You can write the program in whatever language you like. Leave a link to the program’s source code in the comments.

Here is a table of Morse code, taken from Wikipedia: