[JAVA][Beginning Java 8 Games Development]

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Chapter 15 ■ Implementing Game Audio Assets: Using the JavaFX AudioClip Class Audio Sequencing Engine Creating and Optimizing Digital Audio: Audacity 2.0.6 Launch the latest version of Audacity—at the time of this writing that would be 2.0.6, and use your microphone to record your voice saying the word “left.” Fortunately my NetBeans 8 and Java 8 development workstation is also my Skype workstation, and I have a basic Logitech adjustable microphone on a stand that I can use to make the basic audio files that we will need to put audio files into place for each of our different sprite movements that we put into place in Chapter 13. I will go through the digital audio file “scratch creation” and optimization work process in this section of the chapter, and you can do this yourself, for each of the six digital audio files we will need to use in the coding sections of this chapter. You can also use the six audio files included with this book’s software repository if you want to simply get onto the Java 8 coding part of digital audio asset implementation using the JavaFX AudioClip class. I would recommend going over how to optimize uncompressed audio for use in system memory, as we’re about to take 113KB of raw source audio data, and knock 99KB of data off of it, and reduce it another 88% to be only 14KB. As you can see in the left side of Figure 15-1, I have recorded the spoken word “left,” and used the Audacity selection tool to select only that portion of the recording session, seen in a darker gray shade, that contains the audio data. Since you can see the digital audio waveform representation in the Audacity waveform editing area, you can see the portion of your recording where the data that you just recorded is contained. The portion of your audio recording that does not contain any digital audio data will just look like a straight line. Figure 15-1. Launch Audacity, record your voice saying the word “left,” and then select the wave and Export Selection The fastest way to get only the raw digital audio data, which is all that we really want inside of our .WAV file anyway, and is the only data that we want to be optimizing using Audacity, is to use the File ➤ Export Selection menu sequence. This will allow us to directly write the selected audio data into the left.wav file using the WAVE PCM digital audio format. After we do this, we can then start a new Audacity editing session and simply open up that file and start the digital audio content optimization process. After you use the Export Selection menu option in Audacity, you will get the Export File dialog, which is shown in Figure 15-2. Type left in the File name: field, seen in the bottom of the dialog, and click the Save button. www.it-ebooks.info 325
Chapter 15 ■ Implementing Game Audio Assets: Using the JavaFX AudioClip Class Audio Sequencing Engine Figure 15-2. In the Export File dialog, name the file “left” using the .WAV audio file type Now that we have only the spoken word left in a left.wav audio file, and have saved that so that we can see what this baseline raw 32-bit 44.1kHz digital audio will give us as a data footprint (and as a memory footprint for our game, if we were to use this file as-is), we can close out the recording session, as it has served its purpose. We will do this by using the File ➤ Close menu sequence, which can be seen on the left side of Figure 15-3. Figure 15-3. Close the current editing session, then Open the “left” file, noting its raw file size, for further optimization 326 www.it-ebooks.info
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Contents at a Glance About the Auth
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Introduction The Java Programming L
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■ Introduction In Chapter 13 you
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Chapter 1 ■ Setting Up a Java 8 G
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Chapter 2 Setting Up Your Java 8 ID
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Chapter 2 ■ Setting Up Your Java
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Profiling Your Java 8 Game Applicat
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Chapter 3 ■ A Java 8 Primer: An I
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Chapter 4 ■ An Introduction to Ja
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Chapter 5 An Introduction to Game D
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Chapter 5 ■ An Introduction to Ga
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Chapter 6 The Foundation of Game De
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Chapter 6 ■ The Foundation of Gam
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Chapter 7 The Foundation of Game Pl
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Chapter 8 Creating Your Actor Engin
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Chapter 8 ■ Creating Your Actor E
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Chapter 9 Controlling Your Action F
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Chapter 9 ■ Controlling Your Acti
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Chapter 10 Directing the Cast of Ac
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Chapter 10 ■ Directing the Cast o
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Chapter 11 ■ Moving Your Action F
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Chapter 12 Setting Boundaries for Y
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Chapter 12 ■ Setting Boundaries f
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Page 276 and 277: Chapter 13 ■ Animating Your Actio
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Chapter 16 ■ Collision Detection:
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Chapter 17 Enhancing Game Play: Cre
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Chapter 17 ■ Enhancing Game Play:
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■ index Background image (cont.)
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■ index InvinciBagel animation (c
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■ index Modifier keywords access
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Beginning Java 8 Games Development
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This Java 8 Game Development book i
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■ Contents NetBeans 8.0 Is User I
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■ Contents ■■Chapter 5: An In
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■ Contents Creating a Hero Superc
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■ Contents Organizing the .update
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■ Contents Optimizing the Scene G
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About the Author Wallace Jackson ha
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Acknowledgments I would like to ack
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