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Listing 14 . Populate and return the melody array with stereo data.
//Use the shorter of the two lengths if they don't match. Note the use // of a Java conditional operator to accomplish this.int lengthLimit = (trebleMelody.length<= bassMelody.length) ? trebleMelody.length : bassMelody.length;//Create an output array that is twice the length of the shorter of the // bass or treble melodies to accommodate a stereo representation of the// melody. The bass melody will be put in the left-channel bytes in the // array. Similarly, the treble melody will be put in the right-channel// bytes in the array. melody = new byte[2*lengthLimit]; //Interlace the bass and treble melody data in the array so that the// bass will be played through the left speaker and the treble will be // played through the right speaker.for(int cnt = 0;cnt<melody.length-4;cnt+=4){ melody[cnt]= bassMelody[cnt/2];melody[cnt+1] = bassMelody[1 + cnt/2]; melody[cnt+2]= trebleMelody[cnt/2];melody[cnt+3] = trebleMelody[1 + cnt/2]; }//end for loopreturn melody;//return the array and terminate the method }//end if

All of the code in Listing 17 is straightforward and shouldn't require an explanation beyond the embedded comments. The getMelody method terminates when the return statement is executed near the bottom of Listing 17 . At this point, the melody array has been populated with bass audio data for the leftspeaker and treble audio data for the right speaker. Control returns to Listing 4 , which causes the audio data in the melody array to be played or written into an output audio file of type AU.

Populate and return the melody array with monaural data

The code in Listing 15 is executed only if the if statement at the beginning of Listing 13 returned false, meaning that the user did not specify a file containing bass note data on the command line. In that case, all of the code inthe if statement is skipped, passing control to the return statement in Listing 15.

Listing 15 . Populate and return the melody array with monaural data.
return trebleMelody;}//end method getMelody

Listing 15 returns a reference to the monaural trebleMelody array containing only treble clef audio data.

Listing 15 also signals the end of the getMelody method.

The getPiano method

At the end of Listing 12 , you saw a call to a method named makeMusic . I told you that the purpose of the makeMusic method is to transform the note data into an array of amplitude values that can be played orwritten into an audio output file. I also told you that the makeMusic method is the most important part of the entire program and that I would explainit in detail later.

The makeMusic method must be able to determine the frequency or pitch of every note that is specified in the text files containing the datafor a melody using musical annotation. That is no small task. I wrote a utility method named getPiano that creates a Hashtable object that ties note names to note frequencies and provides that Hashtable object to the makeMusic method. That method begins in Listing 16 .

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele 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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