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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 program named Sinc01.
  • Listing 2 . Beginning of the class named Runner.
  • Listing 3 . The method named run.
  • Listing 4 . Beginning of the method named getYval.
  • Listing 5 . The end of the getYval method.
  • Listing 6 . Contents of the output file named Sinc01.txt.
  • Listing 7 . Beginning of the class named MusicComposer10.
  • Listing 8 . The constructor for the class named MusicComposer10.
  • Listing 9 . Beginning of the class named AudioGraph01.
  • Listing 10 . Read the input text file.
  • Listing 11 . The remainder of the constructor for the class named AudioGraph01.
  • Listing 12 . Beginning of the method named getMelody.
  • Listing 13 . Determine the frequency and data ranges.
  • Listing 14 . Determine the frequency to represent a y-value of zero.
  • Listing 15 . Compute audio sample values and deposit them in the output array.
  • Listing 16 . The program named Sinc01.
  • Listing 17 . The file named Sinc01Solver.bat.
  • Listing 18 . The file named Sinc01Player.bat
  • Listing 19 . The class named MusicComposer10.
  • Listing 20 . The class named AudioGraph01.

Figures

Please see the section titled Not a substitute for an embossed image for a discussion of the images that are provided in this module.

General background information

What is an AudioGraph ?

A previous module titled Jbs2040-An Audio Graph of a Sinusoid introduced you to the concept of an AudioGraph . In a nutshell, an AudioGraph is a melody consisting of audio pulses that represent points on thegraph of a function. Those points represent values of y as a function of x between two limits on x.

Two different AudioGraph programs were presented in earlier modules. Each was specifically designed for a particular function. One program produced anAudioGraph of a square wave. The other produced an AudioGraph of a sinusoid.

A general purpose AudioGraph program

This module expands on that concept and develops a general purpose program named MusicComposer10 that can produce an AudioGraph for virtually any single-valued function of the independent variable x for which the values of y can be encapsulated ina simple text file. Several examples are provided above . (By single-valued function in this context, I mean a function where, for every value of x within the range ofinterest, one and only one finite value exists for y.)

Where do the text files come from ?

The program doesn't know and doesn't care where the values in the text file originate. For example, they could represent the temperature in your dorm room takenmanually every hour for 36 hours and entered into a text file using a simple text editor program. On the other hand, they could be produced by acomputer program that is designed to evaluate a specific function and to write the results into an output text file as was the case for Sinc01 .

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
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.
Bharti
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
Daniel
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
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
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
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
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.
Tarell
what is the actual application of fullerenes nowadays?
Damian
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.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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
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