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Run the program

I encourage you to copy the code from Listing 9 and Listing 10 . Retrieve the necessary source code for the other three classes from the module titled Jbs2010-Your First Sound Program . Compile the code and execute it. Experiment with the code,making changes, and observing the results of your changes. Make certain that you can explain why your changes behave as they do.

Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Jbs2040-An Audio Graph of a Sinusoid
  • File: Jbs2040.htm
  • Published: 08/27/14
  • Revised: 09/29/15
Disclaimers:

Financial : Although the OpenStax CNX site makes it possible for you to download a PDF file for the collection thatcontains this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware that some of the HTML elements in this module may not translate well into PDF.

You also need to know that Prof. Baldwin receives no financial compensation from OpenStax CNX even if you purchase the PDF version of the collection.

In the past, unknown individuals have copied Prof. Baldwin's modules from cnx.org, converted them to Kindle books, and placedthem for sale on Amazon.com showing Prof. Baldwin as the author. Prof. Baldwin neither receives compensation for those sales nordoes he know who does receive compensation. If you purchase such a book, please be aware that it is a copy of a collection thatis freely available on OpenStax CNX and that it was made and published without the prior knowledge of Prof.Baldwin.

Affiliation :: Prof. Baldwin is a professor of Computer Information Technology at Austin Community College inAustin, TX.

Complete program listings

Complete listings of two of the classes discussed in this module are provided below. Source code for the remaining three classes can be obtained from themodule titled Jbs2010-Your First Sound Program .

Listing 9 . The class named MusicComposer07.
/*File MusicComposer07.java Copyright 2014, R.G.BaldwinRevised 08/23/14 This program creates and plays an audio graph of a sinusoid. It works inconjunction with the following classes: AudioGraphSinusoidalAudioSignalGenerator02 AudioPlayOrFile01AudioFormatParameters01 The sound can be played immediately or can be saved in an audio file oftype AU for playback later. You should be able to play the audio file with any standard media player that can handle the AU file typeTested using JDK 1.8 under Win 7. ******************************************************************************/public class MusicComposer07{ //Instantiate an object containing audio format parameters with predefined// values. They may be modified by the signal generator at runtime. Values // allowed by Java SDK 1.4.1 are shown in comments in the class definition. AudioFormatParameters01 audioParams = new AudioFormatParameters01();//A buffer to hold the audio data that will be played or filed.byte[] melody;//A place to store the incoming args array.String[] args;//-------------------------------------------------------------------------// //Command-line parameter (only one parameter is needed)//If "play", the sound will be played immediately. Otherwise, the string will // be used as a filename for an audio file of type AU. In the latter case,// it must be a string that would be valid as a file name for the operating // system in use.public static void main(String[] args){//Instantiate a new object of this class. new MusicComposer07(args);}//end main //-------------------------------------------------------------------------//public MusicComposer07(String[]args){//constructor //Save the args array.this.args = args;//Create default args data if no args data is provided on the command line. if(args.length == 0){this.args = new String[1];this.args[0] = "play";//Play the melody immediately}//end if //Get a populated array containing audio data for white or pink noise.AudioGraphSinusoidal audioGraphSinusoidal = new AudioGraphSinusoidal(audioParams,this.args,melody);melody = audioGraphSinusoidal.getMelody(); //Play or file the audio datanew AudioPlayOrFile01(audioParams,melody,this.args[0]).playOrFileData();}//end constructor //-------------------------------------------------------------------------//}//end class MusicComposer07.java

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
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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
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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.
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what is biological synthesis of nanoparticles
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how did you get the value of 2000N.What calculations are needed to arrive at it
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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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