Program Explanation //Import required header files import java.awt.Graphics; import java.io.RandomAccessFile; import java.io.IOException; import java.util.Arrays; import javax.swing.JComponent; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; //Define the main class class Echo { //Define a method that is used to process the sound samples public static void process(int samples[], int sampleRate) { //Caculate the delay int delay = sampleRate / 5; //Loop through the length of the sample sound for (int i = samples.length - 1; i >= delay; i--) { //Calculate sample values and store in the array samples[i] = samples[i] + samples[i - delay]; } //Declare a variable int max = samples[0]; //Loop through the samples for (int i = 1; i < samples.length; i++) { //Check the condition if (samples[i] > max) { //Get the largest value max = samples[i]; } } //Check if the value is greater than 32767 if (max > 32767) { //Loop through the length of the sample for (int i = 0; i < samples.length; i++) { //Scale the value if necessary samples[i] = samples[i] * 32767 / max; } } } //Define a method to get unsigned 4-byte integer public static int getUnsignedInt4(RandomAccessFile in) throws IOException { //Declare required variables int result = 0; int base = 1; //Loop through 0 to 4 for (int i = 0; i < 4; i++) { //Calculate result value result = result + in.read() * base; //Calculate base value base = base * 256; } //Return the value return result; } //Define a method to get unsigned 2-byte integer public static int getUnsignedInt2(RandomAccessFile in)throws IOException { //Read the values int lo = in.read(); int hi = in.read(); //Calculate and return the integer return lo + 256 * hi; } //Define a method to get 2 byte integer public static int getSignedInt2(RandomAccessFile in) throws IOException { //Read the values int lo = in.read(); int hi = in.read(); //Calculate the result int result = lo + 256 * hi; //Check the value if (result >= 32768) { //Calculate the value result = result - 65536; } //Return the value return result; } //Define a function to put signed 2-byte integer to the file public static void putSignedInt2(RandomAccessFile out, int value) throws IOException { //Check the value if (value < 0) { //Calculate the value value = value + 65536; } //Write the values to the files out.write(value % 256); out.write(value / 256); } //Define the main method public static void main(String[] args) throws Exception { //Create an object for JFileChooser JFileChooser chooser = new JFileChooser("."); //Check whether the file is null if (chooser.showOpenDialog(null) != JFileChooser.APPROVE_OPTION) { //Print the statement System.out.println("No sound file selected."); //Exit the application System.exit(1); } //Create an object for RansomAccessFile RandomAccessFile file = new RandomAccessFile(chooser.getSelectedFile(), "rw"); //Checking that the file can be handled file.seek(20); //Get unsigned 2-byte integer from the file int formatType = getUnsignedInt2(file); //Check the format if (formatType != 1) { //Print the statement System.out.println("Not an uncompressed sound file."); //Exit the application System.exit(1); } //Get unsigned 2-byte integer from the file int numChannels = getUnsignedInt2(file); //Check the file if (numChannels != 1) { //Print the statement System.out.println("Not a mono sound file."); //Exit the application System...

6th Edition

ISBN: 8220102010314

Author: Horstmann

Publisher: YUZU

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Expert Solution & Answer

Chapter 7, Problem 14PP

Program Description Answer

The below program is used to process a 16-bit uncompressed mono WAV file and should produce echo.

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Chapter 7, Problem 13PP

Chapter 7, Problem 15PP

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Chapter 7 Solutions

EBK BIG JAVA: EARLY OBJECTS, INTERACTIV

Ch. 7.1 - Declare an array of integers containing the first...Ch. 7.1 - Assume the array primes has been initialized as...Ch. 7.1 - Assume the array primes has been initialized as...Ch. 7.1 - Prob. 4SC Ch. 7.1 - Prob. 5SC Ch. 7.1 - Declare an array containing two strings, "Yes",...Ch. 7.1 - Can you produce the output on page 308 without...Ch. 7.1 - Prob. 8SC Ch. 7.2 - Prob. 9SC Ch. 7.2 - Prob. 10SC

Ch. 7.2 - Prob. 11SC Ch. 7.2 - Prob. 12SC Ch. 7.3 - Prob. 13SC Ch. 7.3 - Prob. 14SC Ch. 7.3 - Prob. 15SC Ch. 7.3 - Prob. 16SC Ch. 7.3 - Prob. 17SC Ch. 7.3 - Prob. 18SC Ch. 7.3 - Prob. 19SC Ch. 7.4 - Prob. 20SC Ch. 7.4 - Prob. 21SC Ch. 7.4 - Prob. 22SC Ch. 7.4 - Prob. 23SC Ch. 7.4 - Prob. 24SC Ch. 7.5 - Prob. 25SC Ch. 7.5 - Prob. 26SC Ch. 7.5 - Prob. 27SC Ch. 7.5 - Prob. 28SC Ch. 7.5 - Prob. 29SC Ch. 7.6 - Prob. 30SC Ch. 7.6 - Prob. 31SC Ch. 7.6 - Prob. 32SC Ch. 7.6 - Prob. 33SC Ch. 7.6 - Prob. 34SC Ch. 7.7 - Declare an array list of integers called primes...Ch. 7.7 - Prob. 36SC Ch. 7.7 - Prob. 37SC Ch. 7.7 - Prob. 38SC Ch. 7.7 - Prob. 39SC Ch. 7.7 - Prob. 40SC Ch. 7.7 - Prob. 41SC Ch. 7.8 - Prob. 42SC Ch. 7.8 - Prob. 43SC Ch. 7.8 - Prob. 44SC Ch. 7 - Prob. 1RE Ch. 7 - Prob. 2RE Ch. 7 - Write a program that contains a bounds error. Run...Ch. 7 - Write a loop that reads ten numbers and a second...Ch. 7 - Prob. 5RE Ch. 7 - Consider the following array: int[] a = { 1, 2, 3,...Ch. 7 - Consider the following array: int[] a = { 1, 2, 3,...Ch. 7 - Prob. 8RE Ch. 7 - Write Java code for a loop that simultaneously...Ch. 7 - What is wrong with each of the following code...Ch. 7 - Write enhanced for loops for the following...Ch. 7 - Rewrite the following loops without using the...Ch. 7 - Rewrite the following loops using the enhanced for...Ch. 7 - What is wrong with each of the following code...Ch. 7 - For the operations on partially filled arrays...Ch. 7 - Trace the flow of the loop in Section 7.3.4 with...Ch. 7 - Prob. 17RE Ch. 7 - Prob. 18RE Ch. 7 - Trace the algorithm for removing an element...Ch. 7 - Give pseudocode for an algorithm that rotates the...Ch. 7 - Prob. 21RE Ch. 7 - Suppose values is a sorted array of integers. Give...Ch. 7 - A run is a sequence of adjacent repeated values....Ch. 7 - What is wrong with the following method that aims...Ch. 7 - You are given two arrays denoting x- and...Ch. 7 - Solve the quiz score problem described in Section...Ch. 7 - Prob. 27RE Ch. 7 - Develop an algorithm for finding the most...Ch. 7 - Write Java statements for performing the following...Ch. 7 - Prob. 30RE Ch. 7 - Section 7.7.7 shows that you must be careful about...Ch. 7 - True or false? All elements of an array are of the...Ch. 7 - How do you perform the following tasks with array...Ch. 7 - Prob. 34RE Ch. 7 - Prob. 35RE Ch. 7 - Prob. 36RE Ch. 7 - Write a program that initializes an array with ten...Ch. 7 - Modify the LargestInArray.java program in Section...Ch. 7 - Write a method sumWithoutSmallest that computes...Ch. 7 - Add a method removeMin to the Student class of...Ch. 7 - Prob. 5PE Ch. 7 - Write a method that reverses the sequence of...Ch. 7 - Write a program that produces ten random...Ch. 7 - Write a method that implements the algorithm...Ch. 7 - Prob. 9PE Ch. 7 - Prob. 10PE Ch. 7 - Consider the following class: public class...Ch. 7 - Add a method public boolean sameValues(Sequence...Ch. 7 - Add a method public boolean sameValues(Sequence...Ch. 7 - Prob. 14PE Ch. 7 - Prob. 15PE Ch. 7 - Add a method to the Table class below that...Ch. 7 - Given the Table class of Exercise E7.16, add a...Ch. 7 - Prob. 18PE Ch. 7 - Prob. 19PE Ch. 7 - Prob. 20PE Ch. 7 - Improve the program of Exercise E7.17 by adding...Ch. 7 - Consider the following class: public class...Ch. 7 - Prob. 23PE Ch. 7 - Prob. 24PE Ch. 7 - Prob. 1PP Ch. 7 - Prob. 2PP Ch. 7 - Prob. 3PP Ch. 7 - Prob. 4PP Ch. 7 - Prob. 5PP Ch. 7 - Prob. 6PP Ch. 7 - Prob. 7PP Ch. 7 - Prob. 8PP Ch. 7 - Prob. 9PP Ch. 7 - Prob. 10PP Ch. 7 - A pet shop wants to give a discount to its clients...Ch. 7 - Prob. 12PP Ch. 7 - Prob. 13PP Ch. 7 - Prob. 14PP Ch. 7 - Prob. 15PP Ch. 7 - Prob. 16PP Ch. 7 - Prob. 17PP Ch. 7 - Prob. 18PP Ch. 7 - Prob. 19PP Ch. 7 - Prob. 20PP Ch. 7 - Prob. 21PP Ch. 7 - Prob. 22PP Ch. 7 - Prob. 23PP Ch. 7 - Prob. 24PP Ch. 7 - Prob. 25PP

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