I've played this game on my Windows laptop, and had no problems with the sound. On my Mac Mini, though, every once in a while the sound will glitch up, with the music going mute and making a repetitive clicking noise. I went through a cinematic with it, and the dialogue would stutter and repeat for a second, then proceed to the next bit of sound, stuttering and repeating on and on.

Further, the health bar doesn't seem to respond to Raz getting hit or picking up health points.

I'm assuming these are glitches from the port from PC to Mac. Does anyone know if it will be fixed? Thank you.

I'm also having sound issues, and some graphical effects such as fire don't seem to be displaying properly. Does the Mac release include the fixes present in the Steam version?

Similar issue here, getting worse since I started the Milkman Conspiracy level.
When I load a game, the sound is fine. Then I start losing voices, then certain sound effects and music start cutting out, with only a few clicks or bumps in their place, and before long there is almost no sound at all. Seems to be brought faster when loading new areas or bringing up the psychic ability and inventory menus.
Restarting gets sound back, but then it starts all over again.

I submitted the issues and the thread to the support team about a week ago, they say that the Product Team is investigating the issue. Seeing as I have among the latest Mac hardware and OS, it's a bit disappointing that this game doesn't appear to have been play-tested :/ .

Hi all. Apologies for the inconvenience this issue is causing for you.

We are interested to know if you are still experiencing this in your installs. If so, can you please post here with your system specs? You can find that via the System Information app on OSX.

Yes, I am still experiencing this issue. I am using a Macbook Pro9,1 with an i7 processor at 2.6 Ghz, an Intel HD Graphics HD 4000 and an Nvidia Geforce GT 650M. My display is 1440 x 900. I am running OS X 10.8.5. I have suffered both the lack of health information and the sound delay bugs, along with a crash.