<< Chapter < Page Chapter >> Page >
This module explains how to create an audio graph of a sinusoid in a format that is accessible to blind students. The program could easily be modified to create audio graphs of other functions such as parabolas, exponentials, etc. The module also explains how to create stereo sound.

Table of contents

Preface

This module is part of a collection titled Accessible Objected-Oriented Programming Concepts for Blind Students using Java . It explains how to create an audio graph of a sinusoid in a format that isaccessible to blind students. The program could easily be modified to create audio graphs of other functions such as parabolas, exponentials, etc.

Previous modules have created only monaural sound. This module also explains how to create stereo sound.

Viewing tip

I recommend that you open another copy of this module in a separate browser window and use the following links to easily find the listings while you are reading about them.

Listings

  • Listing 1 . Beginning of the class named AudioGraphSinusoidal.
  • Listing 2 . Beginning of the getMelody method.
  • Listing 3 . Declare speaker volume variables.
  • Listing 4 . Miscellaneous operations.
  • Listing 5 . Map the sinusoidal function values into pulse frequencies.
  • Listing 6 . Shape the pulse amplitude from beginning to end.
  • Listing 7 . Compute the gain for the left and right speakers.
  • Listing 8 . Deposit stereo audio data in the melody file.
  • Listing 9 . The class named MusicComposer07.
  • Listing 10 . The class named AudioGraphSinusoidal.

General background information

Previous modules have introduced you to the concept of an audio graph consisting of audio pulses that represent points on the graph of a function.Click AudioGraphSquareWave to hear an audio graph of a square wave function. Click AudioGraphSinusoidal to hear an audio graph of a sinusoidal function. (You should be able to play these audio files with any standard media player that can handle the AU file type. In case you are on the OpenStax site and youare unable to download the audio files, click the Legacy Site link at the top of this page to switch over to the same module on the Legacysite. You should be able to download the audio files from there.)

In this module, I will explain how to create the audio graph of the sinusoid. The program could easily be modified to create audio graphs of other functionssuch as parabolas, exponentials, etc.

Questions & Answers

what is mutation
Janga Reply
what is a cell
Sifune Reply
how is urine form
Sifune
what is antagonism?
mahase Reply
classification of plants, gymnosperm features.
Linsy Reply
what is the features of gymnosperm
Linsy
how many types of solid did we have
Samuel Reply
what is an ionic bond
Samuel
What is Atoms
Daprince Reply
what is fallopian tube
Merolyn
what is bladder
Merolyn
what's bulbourethral gland
Eduek Reply
urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
onuoha Reply
State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
Jeremiah
what is heart
Konadu Reply
how is urine formed in human
Konadu
how is urine formed in human
Rahma
what is the diference between a cavity and a canal
Pelagie Reply
what is the causative agent of malaria
Diamond
malaria is caused by an insect called mosquito.
Naomi
Malaria is cause by female anopheles mosquito
Isaac
Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
Olalekan
a canal is more needed in a root but a cavity is a bad effect
Commander
what are pathogens
Don Reply
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
Zainab
A virus
Commander
Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
Davonte
what are the functions of Endocrine and pituitary gland
Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
Achor
what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
Alfreda
Biology is the study of how living organisms live and survive in a specific environment
Sifune
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Accessible objected-oriented programming concepts for blind students using java. OpenStax CNX. Sep 01, 2014 Download for free at https://legacy.cnx.org/content/col11349/1.17
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Accessible objected-oriented programming concepts for blind students using java' conversation and receive update notifications?

Ask