I can't get the demo app or Surprise to work on Google Nexus 5

[Walter Wang]

Clap or Whistle detection both fail to detect any signal, does anyone have any ideas?

I am getting the following logs when I build the demo_app, (which compiles fine): 

I/System.out: debugger has settled (1436)

W/System: ClassLoader referenced unknown path: /data/app/com.musicg.demo.android-1/lib/arm64

I/InstantRun: Instant Run Runtime started. Android package is com.musicg.demo.android, real application class is null.

W/System: ClassLoader referenced unknown path: /data/app/com.musicg.demo.android-1/lib/arm64

W/System.err: DetectionAPI supports mono Wav only

W/System.err: DetectionAPI supports mono Wav only

I/System.out: Sound detected:

W/System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'int com.musicg.wave.WaveHeader.getBitsPerSample()' on a null object reference

W/System.err:     at com.musicg.api.DetectionApi.isSpecificSound(DetectionApi.java:80)

W/System.err:     at com.musicg.api.WhistleApi.isWhistle(WhistleApi.java:54)

W/System.err:     at com.musicg.demo.android.DetectorThread.run(DetectorThread.java:118)

W/System.err:     at java.lang.Thread.run(Thread.java:761)