audio: Failed to create voice `goldfish_audio_in'

When I run the Android emulator from AVD Manager in the Tools -> Android -> AVD manager I get the following error message:

D:\Android\sdk\tools\emulator.exe -netdelay none -netspeed full -avd Nexus_5X_API_23
Hax is enabled
Hax ram_size 0x60000000
HAX is working and emulator runs in fast virt mode.
audio: Failed to create voice `goldfish_audio_in'                <---------Error here
qemu-system-x86_64.exe: warning: opening audio input failed      <---------
emulator: Listening for console connections on port: 5554
emulator: Serial number of this emulator (for ADB): emulator-5554

• What does this mean?
• Is it something I should be doing something about?

This is my first Android project, so it could well be something simple that I just haven't realised.  At present, I'm just trying to get a Hello World application working and deployed (the "Basic Activity template).

I'm using IntelliJ 2016.2.5 on Windows 10.