com.proch.practicehub

Timeline

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// java.lang.IllegalStateException: play() called on uninitialized AudioTrack.
//  at android.media.AudioTrack.play(AudioTrack.java:1574)
//  at com.proch.practicehub.Drone$PitchGenerator.<init>(Drone.java:51)
//  at com.proch.practicehub.Drone.playPitch(Drone.java:22)
//  at com.proch.practicehub.Drone.playPitch(Drone.java:29)
//  at com.proch.practicehub.DroneScreen.toggleDrone(DroneScreen.java:110)
//  at com.proch.practicehub.DroneScreen$1.onClick(DroneScreen.java:86)
//  at android.view.View.performClick(View.java:5204)
//  at android.view.View$PerformClick.run(View.java:21153)
//  at android.os.Handler.handleCallback(Handler.java:739)
//  at android.os.Handler.dispatchMessage(Handler.java:95)
//  at android.os.Looper.loop(Looper.java:148)
//  at android.app.ActivityThread.main(ActivityThread.java:5417)
//  at java.lang.reflect.Method.invoke(Native Method)
//  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
//  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)