Originally Posted by UxiSXRD
Isn't lossless audio a feature of both high def formats that can help it excel over more mundane legacy audio found on DVD?
People pay $15K for a DVD player which outputs those mundane audio tracks
. 1.5 Mbit/sec DD+ represents a data rate which is a whopping 4X higher than what is used in DVD. That in itself, provides a tremendous boost in fidelity.
Really, we have been over this many times. My position is one in the same. I don't have a camera inside the engine of my car to see how the variable timing valves are operating. I push the gas pedal and if the car accelerates the way I like, I am happy. So I ask people to watch a movie with 1.5 mbit/sec DD+ and tell me that its soundtrack doesn't wonderfully compliment the movie.
Isn't lossless audio, either uncompressed PCM or compressed with codecs like Dolby TrueHD or DTS-HD Master Audio (if there's ever a player that can decode it), identical to the studio master as long as it's at the original bit depth? Thus, shouldn't the onus of proof be on proponents of lossy audio codecs and/or lower bit-depth audio to conduct their own tests to prove that they're not causing any noticible perceptual differences in their own studies, instead?
Well they have. And those are the results I am trying to convey to you. That it is exceptionally difficult to detect any fidelity loss when only mild levels of compression are involved. We have done tests at 760kbps in stereo at 24-bit/96Khz and people could not tell them apart reliably from the PCM original. This was a large population study, conducted with people using headphones and listening super carefully to music, not movies. 5.1 Movies at 1.5mbit/sec would represent similar compression ratio. And here, you are not using headphones and as such, are severely handicapped compared to our testers. In addition, masking effect says that surround music is more forgiving of compression artifacts than stereo.
Is this the reason Microsoft felt it was good enough to have hardware good enough for just 2CH PCM via HDMI instead of 8CH for the Elite?
Please don't take shots like this. I voted to make TrueHD mandatory in HD DVD at the time when we thought it would cost us dearly in royalty costs. BDA on the other hand, didn't want to incur any royalty costs so shunned all lossless codecs and advanced lossy which would let them have DD at higher rates than 640kbps. So our track record of caring about audio fidelity is way, way ahead of anything BDA has done.
Xbox 360 is a gaming machine. We know what our audience wants and needs. And they are absolutely happy with the fidelity they are getting. So we are not going to and add features which they will not appreciate. Besides, we have no intention of putting companies who make standalone products out of business. We would be more than happy if people who want lossless audio output to go and buy the Toshiba player. The key here is that we got the platform capabilities right by mandating the latest and greatest in both lossy and lossless compression. The other guys didn't so they have to lug around PCM or low rate lossy just to make sure people here something different than sound of crickets if the only thing there is TrueHD (24-bit or 60-bits