jdk/src/share/classes/com/sun/media/sound/services/javax.sound.sampled.spi.MixerProvider

# last mixer is default mixer
com.sun.media.sound.PortMixerProvider
com.sun.media.sound.SimpleInputDeviceProvider
com.sun.media.sound.HeadspaceMixerProvider
com.sun.media.sound.DirectAudioDeviceProvider