Lossless Audio in Games

[zweet77]

Originally Posted by WriteSimply

I explained this in a long forgotten thread about a year ago...

For a movie soundtrack like Transformers, sound elements are assembled and then mixed according to the action on the screen. The final mix is the uncompressed MPCM version. The TrueHD on BD is the lossless version; the DD version on BD is the lossy version. Regardless, both encodings happened AFTER the final mixing.

A game "soundtrack" is very much like mixing for a movie, except that all the mixing has to be done on the fly; the sound elements and score are stored on the HDD. The final mix is then sent out as uncompressed MPCM via HDMI delivery or encoded as DD/DTS for optical connections.

The OP confuses the matter because he mentioned Multichannel PCM and Optical in his post without indicating if he switched from HDMI to optical.


fuad

I think that cutscenes and musical scores are part of a final mix that was made for the game.As far as I know the only games that have uncompressed sound are Sony first party titles from the likes of Insomniac(Ratchet and Clank and Resistance)and Naughty Dog(Uncharted)Games like Devil may cry have Dolby.So for games like those It is the ps3 that is decoding it to pcm.The audio codec is usually on the back of the game just like movies although I think some don't have the info because game devolopers may not be required to provide it like movie studios are.