This program will open Macbook's "Built-in Microphone" and start listening and rendering the waveform when you press "Capture".

Code is just baked

https://mchatzi.github.io/audiocapture/

You can open this project as a Java Application in your IDE and set dependencies etc. More easily use maven and plain java:

$ mvn clean package && java -jar target/audiocapture-1.0-SNAPSHOT-jar-with-dependencies.jar

• Verify that the processing of multi bytes (for 16 and 24 bit signals) is correct
• Verify decibel display mode
• Add 2-channel support
• Add sound source selection panel
• Any suggestions for dependency management and easier setup (and alternatives to maven) welcome!
• Find an easy way to build an all-inclusive jar (with or without maven shade plugin) so we can run this with "java -jar"
  • maven shade plugin
  • (done) maven assemply plugin
  • maven oneJar plugin
  • eclipse ide built-in tool
  • fatJar
  • fatJar via gradle
  • gradle application plugin