Ps3 can bitstream audio?

[WriteSimply]

Originally Posted by Jorge Cordeiro

If the Track ( any Lossless track ) is bit by bit equal to the master lets say...5.1 DTrueHD track 16bit 48khz, and in the future a new release is made but this time with 24bit 96khz what does this mean? that we did not had the true Hd audio the first time?

Think about it this way. CDs are lossless audio since they are not lossily compressed. But they are only 16-bit 44.1kHz audio and not bit-to-bit from the master tapes, which can be 20/24-bit at 96kHz.

In the earlier BD releases, MPCM was used to deliver lossless audio but at reduced resolution (16-bit 48kHz) but now with Dolby TrueHD and DTS HDMA, master-tape resolution is becoming the norm. Not to say that all of the lossless audio you'll be seeing would be 20/24-bit either since some 80s/90s movies were mixed at CD resolution.

And why do some blu ray disks have 2 HD audio if they are said to be the same?
Like 300 with dolby true Hd and pcm....
omg sorry for the SO off topic

Just to assist people in getting the best audio possible.

Originally Posted by saprano

I always thought LPCM uses the DAC's in the receiver?

All receivers must have DACs because it converts digital audio signal to analog audio signal. Analog signal is what's needed to drive your speakers.
RAW Digital Bitstream->Decoder-> Digital audio signal->DACs->Analog audio signal->Speaker

That is why I said the PS3 has stereo DACs because using the AV Multiout, you only get stereo analog audio. Using optical out, the audio signal stays in digital form (including the DD/DTS bitstream). Using HDMI, the MPCM audio also stays in the digital realm.

Why did sony choose stereo DAC's? does it even matter?

Makes the PS3 cheaper to produce. Quality DACs aren't cheap. And it doesn't matter much since most people would opt for optical and HDMI to get them multichannel out.


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