<< 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


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.


  • 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 the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
How can I make nanorobot?
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
how can I make nanorobot?
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Berger describes sociologists as concerned with
Mueller Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!

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?