Originally Posted by MichaelJHuman
DTS's web page is not clear on one point.
If a given device claims DTS-HD Master Audio decoding, does that imply DTS-HD High Resolution decoding? It would seem to apply that due to their core + extension model, but I dislike making assumptions.
The end decoder capability for DTS-MA is dependent upon the selected audio DSP and its headroom capacity.. To process/decode DTS-MA, @ its highest native input specs provided the audio source material is of high enough quality..
The DSP decoder must have enough internal resources including calculation engine & memory.
All of the AVRs with HDMI 1.3 level of compliance to date..
That include on-board HD audio codecs selling for <$1499 suffer from these issues..
This is why
certain brands such as Denon, Pioneer/Elite, Onkyo, Yamaha are using 2 or 3 separate audio DSP processors.
One should keep in mind that the audio DSP circuit needs the capacity not only to decode the digital audio stream..
It needs to run its bass manager, room EQ and other post-processing modes..
Think about much like the SD audio decoding capabilities of certain AVRs 1 or 2 years back, certain digital audio streams might have been encoded @ 96kHz..
But the DSP only had enough resources & bandwidth to process @ 48kHz..
Thus the stream is downsampled
To the listener..
Often there is no indication of this downsampling step..
Once the studios/content providers start to supply hi-res DTS-MA encoded (w/extension) source material then the silicon providers such as TI, Cirrus Logic. Freescale (Motorola), Analog Devices will significantly up
the power of their DSPs by going to higher clock rates, more memory in a single, thinner micron package. But this will not start to show up into AVRs until next year..
Just my $.02 worth..