Quote:
Originally Posted by Bob Pariseau 
That would be a very unusual type of receiver. I think the odds are pretty good that you have not truly figured out how it works yet.
The reason I say this is that speaker time alignment (distance adjustment) is USUALLY done via digital audio processing. Which means that for Analog audio input, the receiver would have to re-digitize that input before it could do that (and then convert BACK to Analog for output of course). And if the receiver has the ability to re-digitize Analog input, then application of speaker volume trims as well would typically also be included, since it is the same sort of thing the receiver is already doing for any Digital audio input source.
Anyway, as stated above, for any given listening method you want to insure the various adjustments are not be duplicated. So bass management (crossover processing), time alignment (speaker distance processing), surround sound expansion (processing to take, say, stereo content and raise it to more speakers for output) should each only be done in one place. But they don't all have to be done in the same place. Volume trim is a little different as you can combine the effects of output volume trim in a source device (like the OPPO) with additional volume trim in your receiver, which may make it easier to get the desired result.
To disable processing in the OPPO for the multi-channel Analog outputs -- so that your receiver gets to do all the work -- set, in the OPPO, all speakers Large and the Subwoofer On. Set all speakers to 0dB output volume trim. And set all speakers equidistant -- ANY distance will do so long as they are all the same (might as well just leave them at the OPPO Factory Default values of 12 feet each).
If your receiver really can do the time alignment (speaker distance adjustment) for multi-channel Analog input, then these settings keep the OPPO from also trying to do that. They also disable bass steering (Crossover processing) and send out "reference" volume levels. If you receiver CAN'T do the volume trims, then you can safely do that in the OPPO while still leaving it to the Receiver to do other stuff. You'll also need to discover if your Receiver is able to do Crossover processing on that input. If not then you will need to set some or all speakers Small in the OPPO and pick a Crossover frequency in the OPPO.
It is wise to use an audio calibration disc to check your combo of settings in the two devices.
--Bob
That would be a very unusual type of receiver. I think the odds are pretty good that you have not truly figured out how it works yet.
The reason I say this is that speaker time alignment (distance adjustment) is USUALLY done via digital audio processing. Which means that for Analog audio input, the receiver would have to re-digitize that input before it could do that (and then convert BACK to Analog for output of course). And if the receiver has the ability to re-digitize Analog input, then application of speaker volume trims as well would typically also be included, since it is the same sort of thing the receiver is already doing for any Digital audio input source.
Anyway, as stated above, for any given listening method you want to insure the various adjustments are not be duplicated. So bass management (crossover processing), time alignment (speaker distance processing), surround sound expansion (processing to take, say, stereo content and raise it to more speakers for output) should each only be done in one place. But they don't all have to be done in the same place. Volume trim is a little different as you can combine the effects of output volume trim in a source device (like the OPPO) with additional volume trim in your receiver, which may make it easier to get the desired result.
To disable processing in the OPPO for the multi-channel Analog outputs -- so that your receiver gets to do all the work -- set, in the OPPO, all speakers Large and the Subwoofer On. Set all speakers to 0dB output volume trim. And set all speakers equidistant -- ANY distance will do so long as they are all the same (might as well just leave them at the OPPO Factory Default values of 12 feet each).
If your receiver really can do the time alignment (speaker distance adjustment) for multi-channel Analog input, then these settings keep the OPPO from also trying to do that. They also disable bass steering (Crossover processing) and send out "reference" volume levels. If you receiver CAN'T do the volume trims, then you can safely do that in the OPPO while still leaving it to the Receiver to do other stuff. You'll also need to discover if your Receiver is able to do Crossover processing on that input. If not then you will need to set some or all speakers Small in the OPPO and pick a Crossover frequency in the OPPO.
It is wise to use an audio calibration disc to check your combo of settings in the two devices.
--Bob
You're right Bob. I was mistaken. The receiver allows me to adjust channel trims and distance on the 5.1 input, but nothing more. So your recommendation is to set these in the receiver and do the above adjustments in the oppo (all speakers large, sub=yes) so that only one source is adjusting the sound on the oppo's analog outputs? If that doesn't work, then many play with the channel trims in the oppo in addition to the receiver (using a mic and pink noise sweep) to ensure that the speakers are all equally calibrated to the same level for all inputs and sources. The only thing that keeps confusing me is that for all my other inputs, I've been using the test tone generated by the receiver to do my calibrating, but for the analog input I was using the pink noise generated by the oppo for the calibration. I suppose it shouldn't matter which tone generator I use if I have the trims set correctly. Also, I don't have a sub. Should I still set the sub to "on" to defeat the surround processing on the oppo?
