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Listing 11 . Check for treble and bass clefs of different lengths.
if(trebleLengthInBeats != bassLengthInBeats){ System.out.println("Treble and bass are different lengths.");System.out.println("Will use the shorter of the two."); }//end if}//end if

Convert treble notes to amplitude values

With the exception of the last statement in Listing 12 , all the code in Listing 12 is very similar to code that you have seen before.

Listing 12 . Convert treble notes to amplitude values.
//Each channel requires two 8-bit bytes per 16-bit sample. int bytesPerSampPerChan = 2;//Override the default sampleRate of 16000.0F. Allowable sample rates// are 8000,11025,16000,22050, and 44100 samples per second. audioParams.sampleRate = 8000.0F;//Create an array of sufficient size to contain the treble melody. Treat // as mono at this point. May combine with bass melody later to create// a stereo output. Add an extra one-half second of capacity to deal with // possible round off error at the end.byte[] trebleMelody = new byte[(int)(audioParams.sampleRate/2 + trebleLengthInBeats* audioParams.sampleRate*bytesPerSampPerChan/beatsPerSec)]; System.out.println("trebleMelody.length = " + trebleMelody.length);//Prepare a ByteBuffer for use byteBuffer = ByteBuffer.wrap(trebleMelody);//Call a method that transforms the notes for the clef into an array of // amplitude values.makeMusic(trebleClef,beatsPerSec);

The last statement in Listing 12 calls a method named makeMusic passing the treble note data along with the value of beatsPerSec as parameters. The purpose of the makeMusic method is to transform the note data into an array of amplitude values that can be played or written into anaudio output file. This method is the most important part of the entire program. I will come back and dedicate quite a lot of time to it later.

Convert bass notes to amplitude values

Continuing with the getMelody method, Listing 13 does essentially the same thing with the bass clef data if a file containing bass clef data was specifiedas a command-line parameter.

Listing 13 . Convert bass notes to amplitude values.
//Process the bass clef if it exists. if(bassFileName != null){//Create an array of sufficient size to contain the bass melody. Treat // as mono at this point. Will combine with the trebleMelody later to // create a stereo output. Add an extra one-half second of capacity to// deal with possible round off error at the end. byte[]bassMelody = new byte[ (int)(audioParams.sampleRate/2 + bassLengthInBeats*audioParams.sampleRate*bytesPerSampPerChan/beatsPerSec)];System.out.println("bassMelody.length = " + bassMelody.length);//Prepare a ByteBuffer for use byteBuffer = ByteBuffer.wrap(bassMelody);//Call a method that transforms the notes for the clef into an array// of amplitude values. makeMusic(bassClef,beatsPerSec);

Populate and return the melody array with stereo data

Listing 14 continues the if statement that began at the top of Listing 13 , and is executed only if the user specified a bass data file on the command line.

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?
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nano basically means 10^(-9). nanometer is a unit to measure length.
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absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
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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
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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
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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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