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README.md

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 # AudioToImage
 This program will create image of audio file.
+
+This program can only run under the Linux operating system. This program has been tested in Centos 7 Minimal.
+
+Before using this program, you must first install "Lame" and "Sox". Lame is needed to convert the file from MP3 format to WAV format because SoX does not support MP3 format.
+
+## How To Install
+
+To install Lame, download RPM from the repository then install it on your server.
+
+cd /opt 
+curl --location http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz > lame-3.99.5.tar.gz
+tar zxvf lame-3.99.5.tar.gz 
+cd lame-3.99.5
+./configure 
+make 
+make install
+cd /opt 
+rm -rf lame-3.99.5.tar.gz 
+rm -rf lame-3.99.5
+
+To install SoX, download RPM from the repository then install it on your server.
+
+cd /var/development
+mkdir /var/development/sox
+cd /var/development/sox
+curl --location http://vault.centos.org/7.3.1611/os/Source/SPackages/sox-14.4.1-6.el7.src.rpm > sox.rpm
+rpm -Uvh sox.rpm
+yum install -y sox
+rm -rf sox.rpm
+
+## Using PHP
+
+``php
+<?php
+include "AudioToImage.php";
+$wave2png = new AudioToImage("suara.wav");
+$image = $wave2png->generate_png();
+header("Content-Type: image/png");
+imagepng($image);
+// You can also save image to a file
+// i.e.
+// imagepng($image, "suara.png");
+?>
+``