Cannot load audio files on android

Hello,

Are audiofiles handled differently then other assets on android?

I am asking because:

[java]
new AudioNode(assetManager, “GameAssets/Audio/boink.wav”).play()
[/java]

gives me a FileNotFoundException

but

[java]
assetManager.loadMaterial(“GameAssets/Models/Jaime/JaimeLighting.j3m”);
[/java]

works as it should.

I have verified that the .wav files are added to the apk