CS 101 - Introduction to Computing, Spring 2011

Lab 14

In this lab, you will take the Sound File preamble.wav and create a new sentence from those words.

The sentence you are to create is:

We insure the common order to secure for the people more liberty.

The entire text of the Preamble is:

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

To break the original sound into word, we need to know the starting and ending indices of the words. According to page 300 in our text book, the following words from the beginning of the Preamble can be found at the given indices from preamble10.wav:

Word	Starting Index	Ending Index
We	0	15,730
the	15,730	17,407
People	17,407	26,726
of	26,726	31,131
the	31,131	33,413
United	33,413	40,052
States	40,052	55,510

For this lab, you may want to use the code from

• Lect419c.java
• Lect414b.java

Lab Assignment 14

Create a Java program that will:

1. Be writen using good programming style which includes:
   • Using Multiple Methods
   • Good variable names
   • In-line commenting
   • Proper indentation of program statements
   • Use of blank lines to separate blocks of code.
   • Header block commenting for the program and each method written
     

     Your header block comment for the program must include the following:

     • Your Name,
     • Net-ID,
     • Course Name,
     • Assignment Name and
     • Day and time of your CS 101 lab section (i.e. Wednesday at 9:00)
     • A short description of the assignment.

     Header block comments for each method must include the following:

     • A description of the purpose of the method
     • A listing of the name, type and purpose of every parameter
     • A description of the return value and its type

2. Contain the main() method that will
   • Get the soundtrack file preamble.wav
   • Create a sound object from the file
   • Split this sound into the needed words
   • Join those words into the required sentence
   • Play (or explore) the sound.
   • Prompt the user for a name and save it.

3. Use at least two other methods:
   • One to create a sound byte from another sound
   • One to join two sounds together (one following the other)

4. You are also to submit the Java file electronically via the assignment link for Lab 14 in BLackboard.

Here are some example sound files you can use with this assignment.

• Sample Sound Files