Παραθέτω σχετικό απόσπασμα:
"There never really was a serious question whether the PS3 could do DTS HD-MA decoding and output via LPCM since this was strictly a software (firmware) upgrade. This only real issue is the PS3 using a SiL 9132 HDMI transmitter chip that according to the only information available from the chip manufacturer does not support the advanced audio. Their SiL 9134 that is used in standalone BD players does add this capability. Below is a copy of info I posted over on the AVS Forum a few months ago.
According to the brief feedback provided from the chip's manufacturer provided in this thread, the SiL9132 cannot support bitsteaming for the advanced audio formats. As for the old news release from SIL the final sentence of the following paragraph could be read that the SiL 9134 has the additional capability, beyond that supported by the PS3, to output the advanced audio formats via bitstream:
“Sony has indicated that the PlayStation 3 is expected to ship in November of this year with the ability to render the highest-quality video ever seen in a consumer device,” said Dale Zimmerman, vice president of marketing at Silicon Image. “The SiI 9133 receiver matches the capabilities of the PlayStation 3 and makes it possible for HDTV manufacturers to ship products this year that are capable of displaying Deep Color images, for the highest-quality gaming experience and fullest enjoyment of high-definition movies. The SiI 9134 brings these same benefits to next generation DVD players, with additional support for the latest high-quality audio formats, Dolby TrueHD and DTS-HD Master Audio.”
As for sound quality when using bitstream out of the BD player and the AVR doing the decoding versus decoding in the BD player (e.g. PS3) and outputting to the AVR using LPCM, here is my 2 cents worth. It is technically possible to deliver equal performance but some AVRs and preamp/processors don't. Passing LPCM via HDMI is known to introduce additional jitter (timing errors between bits) and many AVRs will pass these data timing errors onto their Digital-to-Analog converters and this can degrade sound quality. However, it is relatively easy to include a data buffer and reclocking of the LPCM data steam within the AVR and if this is done then the level of jitter need be no more than for the case where an encoded bitstream is being passed from the source device and the AVR in this case is forced to provide the clocking for the decoded bit string that it sends to the D-to-A converters. Thus there is no absolute answer possible as to which is better since it depends on the specific hardware implementation in the AVR or preamp/processor. My own background is 30+ years as an electronics engineer dealing with digital communications systems and digital signal processing." :bigcry: