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Old 05-22-2008, 04:41 PM   #4 of 15
Stephen Tu
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Join Date: Apr 1999
Local Time: 09:23 AM
Local Date: 12-01-2008
Posts: 1,054

Re: Panasonic 'BD10A & Its "Working Relationship" with Onkyo TX-SR605...


Quote:
Originally Posted by Linksys 845c
The issue I'm wondering about is multi-fold...first of all, can Dolby and DTS legacy tracks be passed just fine over HDMI instead of coax or optical?
Yes.

Quote:
But, also under this "Multi Channel" menu on the Panasonic player, there's a second menu that pops up and asks you to set speaker sizes, levels, delays, etc...now, this was all set inside my receiver already -- that is, calibrations, delays, speaker crossovers, etc...and I was under the assumption that this speaker setup menu on the Blu ray player was ONLY for if you're using the multichannel analog outputs, which I am not -- ONLY digital HDMI is what I'm running. So, do those speaker sizes, distances, etc. matter if I'm connected via HDMI and not analog?

They should affect both. Bass management is necessary in the player for people who's older receivers (not the 605) *don't* do bass management for multich HDMI/analog input. For the 605, setting the *player's* speaker settings to "large", with the *receiver's* settings to "small", does make sense since you want the player to pass the signal unmolested & let the receiver do the job of steering the bass to the subwoofer.

Quote:
And do these speaker settings in the player affect the digital transmission of BITSTREAMED audio?
No.

Quote:
Should PCM DOWNCONVERSION be left OFF in the player? Could this be affecting the sound? To be honest, decoded TrueHD and uncompressed PCM tracks don't sound all that "great" when I select them off Blu ray discs; to my ear, legacy DTS and Dolby tracks on DVDs are much "punchier" with a much more intense sense of presence and weight; I just don't hear this out of the TrueHD or uncompressed PCM tracks...could something be set wrong in my player?

There is a known bug in the LFE decoding of this player that causes the LFE channel to be too low on these tracks. Supposedly you can make a somewhat imperfect fix (bass from LFE still a bit low, but bass from other channels a bit too high) by bumping the sub channel level up 2-3 dB. Or just stick to legacy & avoid the issue. The benefits of lossless are overblown anyway in my view, the source mix itself is most important. Perceptual codecs do a good job & what you lose is rarely audible, that is what they are designed to do!

PCM Downconversion -- in this instance it is referring to sampling rate downconversion, e.g. 98kHz to 48/44.1 kHz sampling rate for those receivers that can't handle 98kHz, not multich->stereo conversion. I believe the references in the manual to only being able to output 2 ch PCM are because older versions of the firmware that could only decode to 2 chs, doesn't apply to current firmware.

Last edited by Stephen Tu : 05-22-2008 at 04:46 PM.
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