Answered: Audio Collage Library Create a…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Overall Requirements:

Use only Java features that have already been introduced in the course (e.g., loops, arrays, and functions but not objects).
The functions must not mutate the argument array(s).
You may assume that the array arguments to all functions are not null.
All samples sent to standard audio must be between –1 and +1. Note that it is possible that the input samples to each method may not be between –1 and +1. The functions should operate as specified. While you should not play samples whose absolute value is greater than 1, it’s fine to manipulate such values along the way. However, to ensure that your final sample compiles with this requirement, you may want to implement one of the private helper methods: clamp() and normalize(), and then process your final sample before sending it to standard audio.
You must not add public methods to the API; however, you may add private methods (which are accessible only in the class in which they are declared).

Assignment:

Audio Collage Library

Create a library to manipulate digital audio and use that library to create an audio collage. we will represent sound as an array of real numbers between –1 and +1, with 44,100 samples per second. You will write a library of functions to produce audio effects by manipulating such arrays.

main()

The main() method must create an audio collage and play it using StdAudio.play(). Do not use any command-line arguments. The duration must be between 10 and 60 seconds (441,000 to 2,646,000 samples).

The audio collage must use at least five different wav files. Several wav files are provided: beatbox.wav, buzzer.wav, chimes.wav, cow.wav, dialup.wav, exposure.wav, harp.wav, piano.wav, scratch.wav, silence.wav, and singer.wav. You may optionally supply or create your own wav files.
Use StdAudio.read() to read a .wav file and extract its samples as an array of floating-point numbers between –1.0 and +1.0. For example:

double[] samples = StdAudio.read("cow.wav");

The audio collage must use all of the audio effects specified in the API (amplify, reverse, merge, mix, and change speed). Feel free to add additional audio effects (see below for some ideas).
To convert an audio file into an appropriate format for use with StdAudio: