audioplayer uses deprecated carbon framework in OS X

I have been developing a deployed application that uses audioplayer to indicate events to the user. Very simple code:

[y,fs]=audioread(tickFile);
tickSound = audioplayer(y,fs);
play(tickSound);

I develop on a MacBook Pro running El Capitan using 2016a, and I have two problems:

1) When I run the app from the command line, every time a sound is played, I see this line:

WARNING:  140: This application, or a library it uses, is using the deprecated Carbon Component Manager for hosting Audio Units. Support for this will be removed in a future release. Also, this makes the host incompatible with version 3 audio units. Please transition to the API's in AudioComponent.h.

I don't see this message in the development environment unless I look in the system log.

2) If I am working at home and redirect my audio output to my sound system, then undock the MBP, MATLAB doesn't figure out that I don't have that audio output, and play() dies with an internal error. The only way to fix it is to quit MATLAB and restart.

Other than reencoding my .mp3 tick as a .wav and using java audio, I don't see a workaround.