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Sound Quality of Direct TV audio

I recently put a 1/3 octave spectrum analyzer on my Direct TV audio outputs and was shocked to find that they are brick wall filtering all low frequencies below about 150 Hz. Not a gentle roll off mind you, everything from 150 Hz down is gone.

I thought they were supposed to be delivery "high quality" audio. Anyone else discover this or am I getting something unusual?
dhl93449
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dbphd
1,619 posts
 
Our DirecTV HD DVR HR44-200 connects to an Oppo 105D via HDMI that in turn connects to a Bryston SP3 via HDMI. Program material often lights up subs crossed at 40 Hz mains and 80 Hz center and surrounds.

db
philjolet's avatar
philjolet
2,305 posts
 
Zd542 I presumed he had an older unit
zd542
5,339 posts
 
"11-03-15: Philjolet
Zd542 I presumed he had an older unit"

It doesn't matter. They still put analog outputs on current model receivers. I don't know if they do it with every one, but you can still get them.
philjolet's avatar
philjolet
2,305 posts
 
mine does not have analog outputs, specifically: RCA jacks
dhl93449 OP
455 posts
 
OK. My DTV receiver/DVR is a "whole home" type recently replaced (due to the previous unit having hard drive issues). It does come with a full compliment of analog outputs (single ended) as well as composite video and HDMI. I am using a conventional two channel audio system for the audio, and did originally run RCAs to my preamp.

I put the 1/3 octave analyzer in the loop so I could EQ some of the news/voice programming (the analyzer is a Phonic i7600 that is also a 1/3 octave EQ).

Interesting what some are suggesting that only the analog is BW limited, and not the HDMI. Unfortunately, I have no way of analyzing the HDMI audio, as I use only the video portion at my Sony LEDTV.

I would wonder why the only the analog is limited because my suspicion is the signal from the sat is limited due to bandwidth considerations. I think this is recent, but cannot be sure when this started.
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