Originally Posted by sivadselim
A distinction needs to be made between that which is passed as bitstream and that which is passed as MPCM. There IS an "LFE bug" with some receivers when accepting MPCM via HDMI.
The analog issue with the LFE channel is not really a "bug".
There is no bug only bad implementation in some early HDMI 1.1 receivers.
And it stems from the analog connection mishandling by the same suspects.
Roger already touched on the fact that there is no metadata carried with PCM and certainly not with analog. So while this was part of the bitsreaming and decoding automatically for the LFE boost, this is not the case with analog or MCH PCM. So it had to be implemented separately for those formats. Some like Denon figured this out early on, some like Pioneer was a bit late, but eventually they all got this one right. However the analog MCH inputs are often neglected especially since HDMI really became much more adopted. Some MFRs are taking pride in the fact there is no signal processing in any kind on those inputs to preserve the incoming signal. Well those are suspect right there. Anyway there is no bug in either way as far as I'm concerned,but if you insist to call it that way then both are bugs because they come from the same mishandling of the issue. The MFR's just didn't do it right.