How to resolve the algorithm Morse code step by step in the J programming language

Published on 12 May 2024 09:40 PM
#J

How to resolve the algorithm Morse code step by step in the J programming language

Table of Contents

Problem Statement

Morse code is one of the simplest and most versatile methods of telecommunication in existence. It has been in use for more than 175 years — longer than any other electronic encoding system.

Send a string as audible Morse code to an audio device   (e.g., the PC speaker).

As the standard Morse code does not contain all possible characters, you may either ignore unknown characters in the file, or indicate them somehow   (e.g. with a different pitch).

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Morse code step by step in the J programming language

Source code in the j programming language

require'strings media/wav'
morse=:[:; [:(' ',~' .-' {~ 3&#.inv)&.> (_96{.".0 :0-.LF) {~ a.&i.@toupper
 79 448 0 1121 0 0 484 214 644 0 151 692 608 455 205 242 161 134 125 122
 121 202 229 238 241 715 637 0 203 0 400 475 5 67 70 22 1 43 25 40 4 53
 23 49 8 7 26 52 77 16 13 2 14 41 17 68 71 76 214 0 644 0 401
)

onoffdur=: 0.01*100<.@*(1.2%[)*(4 4#:2 5 13){~' .-'i.]
playmorse=: 30&$: :((wavnote&, 63 __"1)@(onoffdur morse))


   morse'this is an example'
- .... .. ...   .. ...   .- -.   . -..- .- -- .--. .-.. .
   playmorse'this is an example'
1
   12 playmorse'as is this'
1

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