This is a significant reworking of the example code for Hack #75, Build an Audio Waveform Display from the book Swing Hacks: Tips & Tools for Building Killer GUIs by Joshua Marinacci & Chris Adamson, ISBN 978-0-596-00907-6.
This particular hack appears to have been originally authored by Jonathan Simon, who also contributed to the book.
The original example code is available from O'Reilly's git repo: https://resources.oreilly.com/examples/9780596009076/tree/master/Ch10-Audio/75
- Making use of Java 7 features
- More narrow exception handling
- Using a JFileChooser dialog instead of command line args to select a file to view.
- More intuitive naming of variables, methods, and classes throughout
- Reworked the convoluted technique for reading audio files
- The method to draw the waveform is largely different, both eliminating code that served no purpose and scaling the y axis in a more meaningful way.
Run mvn package to compile and produce the artifact.
Run java -jar target/swing-hacks-75-0.1.0.jar to start the program.
This is the waveform for the classic Windows 3.1 chimes.wav, in a narrow window:
and the same window after being stretched wider:
