-
Home
- Accessible objected-oriented
- Accessible objected-oriented
- Jbs2060-a player piano simulator
This module explains how to write a program that simulates a player piano in a format that is accessible to blind students.
Table of contents
Preface
This module is part of a collection titled
Accessible
Objected-Oriented Programming Concepts for Blind Students using Java .
It explains how to write a program that simulates a player piano in a formatthat is accessible to blind students.
Here are some sample melodies produced
by the program.
(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 onthe OpenStax site and you are 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 Legacy site. You should be able todownload the
audio files from there .)
Click
here to download a zip file containing the text files
and the Windows batch files needed to playthese melodies. The zip file also contains the audio files of type AU listed
above.
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.
Listings
-
Listing 1 . Beginning of the class named MusicComposer09.
-
Listing 2 . The main method.
-
Listing 3 . Beginning of the constructor for the MusicComposer09 class.
-
Listing 4 . Get a melody array.
-
Listing 5 . Beginning of the PlayerPiano01 class.
-
Listing 6 . The constructor for the PlayerPiano01
class.
-
Listing 7 . Beginning of the getMelody method.
-
Listing 8 . Get and save treble clef note data.
-
Listing 9 . Get and save bass clef note data.
-
Listing 10 . Compute the length of each clef in beats.
-
Listing 11 . Check for treble and bass clefs of different lengths.
-
Listing 12 . Convert treble notes to amplitude values.
-
Listing 13 . Convert bass notes to amplitude values.
-
Listing 14 . Populate and return the melody array with stereo data.
-
Listing 15 . Populate and return the melody array with monaural data.
-
Listing 16 . Beginning of the getPiano method.
-
Listing 17 . Store the current note and compute the frequency of the next note.
-
Listing 18 . Construct the name of the next note.
-
Listing 19 . Beginning of the method named makeMusic.
-
Listing 20 . Process each array containing duration and note names in the ArrayList object.
-
Listing 21 . Process each sample.
-
Listing 22 . Process each piano key that is
pressed.
-
Listing 23 . Use a scale factor to shape the note.
-
Listing 24 . The class named AudioFormatParameters01.
-
Listing 25 . The class named AudioPlayOrFile01.
-
Listing 26 . The class named AudioSignalGenerator02.
-
Listing 27 . The class named MusicComposer09.
-
Listing 28 . The class named PlayerPiano01.
-
Listing 29 . The file named GreensleevesTreble.txt
-
Listing 30 . The file named GreensleevesBass.txt
-
Listing 31 . The file named Greensleeves.bat.
Questions & Answers
number of sport play by 50 student construct discrete data
width of the frangebany leaves on how to write a introduction
Solve the mean of variance
Step 1: Find the mean. To find the mean, add up all the scores, then divide them by the number of scores. ...
Step 2: Find each score's deviation from the mean. ...
Step 3: Square each deviation from the mean. ...
Step 4: Find the sum of squares. ...
Step 5: Divide the sum of squares by n – 1 or N.
kenneth
Is mistake done to something
Vutshila
What is the life teble
anas
statistics is the analyzing of data
how do you calculate mean
diveving the sum if all values
Shaynaynay
let A1,A2 and A3 events be independent,show that (A1)^c, (A2)^c and (A3)^c are independent?
data collected all over the world
Shaynaynay
construct a less than and more than table
The sample of 16 students is taken. The average age in the sample was 22 years with astandard deviation of 6 years. Construct a 95% confidence interval for the age of the population.
Bhartdarshan' is an internet-based travel agency wherein customer can see videos of the cities they plant to visit. The number of hits daily is a normally distributed random variable with a mean of 10,000 and a standard deviation of 2,400
a. what is the probability of getting more than 12,000 hits?
b. what is the probability of getting fewer than 9,000 hits?
Bhartdarshan'is an internet-based travel agency wherein customer can see videos of the cities they plan to visit. The number of hits daily is a normally distributed random variable with a mean of 10,000 and a standard deviation of 2,400.
a. What is the probability of getting more than 12,000 hits
Akshay
Sorry i want to learn more about this question
Bright
a= 0.20233
b=0.3384
Sufiyan
How do I interpret level of significance?
It depends on your business problem or in Machine Learning you could use ROC- AUC cruve to decide the threshold value
Shivam
how skewness and kurtosis are used in statistics
Got questions? Join the online conversation and get instant answers!
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.