High Def Forum
Thank you for visiting. This is our website archive. Please visit our main website by clicking the logo above.

DTV HR24 Audio Issues, Help Needed

1953
03-26-2012, 01:59 AM
PROBLEM SUMMARY
Installed a new 2012 Sony KDL-46HX750 1080p, Internet Ready, 3D HDTV yesterday morning. Now on the second day some irregularities directly related to audio from our HR24 are occuring. These problems apply only to NBC & ABC network Sat & OTA channels.


DETAILS
- During some Dallas ABC & NBC network commercials highs audio frequencies are absent. One commerical will have this audio problem yet the next is perfect. Then the next two commericals may or may not have the same exact problem. When the show returns the audio is generally fine. The next commericals repeat the problems but more than likely not in the same sequence. There is no disernable pattern.

- To make this even stranger once when the broadcast on the same network went to the next show that shows highs immediately went away. This does not always occur. Change the network channel to networks other than Dallas ABC or NBC then the audio problems go away.

- The problem exists on both DTV HR24 Sat and via DTV AM21N OTA.

- On the HR24 Native is Off and the only Resolution checked on is 1080p. Note: The problems have also occurred with Native On and all Resolutions checked.

- On the Sony KDL-46HX750 the Scene Mode is set to Auto (24p sync).


CABLE ROUTING
- HR24/AM21N audio is routed from the HR24 via a Monoprice Premium Optical cable to my Denon AVR 987.

- HR24/AM21N Video is routed from the HR24 via a Monster Premium HDMI directly to the Sony HDTV. This configuration was implemented after having HDMI handshake issues when the brand new HR24's HDMI had 'handshake' problems with the Denon AVR 987.

- On the prior Sony HDTV the HDMI's plugged in horizontally. On this new SONY KDL-46HR750 the HDMI's plug in vertically. The two HDMI cables are very stiff premium Monster brand.

- FYI, the Blu-Ray & HD-DVD HDMI's are routed to the AVR then to the HDTV via one HDMI.


POWER UP SEQUENCE
The devices power up sequence are TV-AVR-HR24 with a delay so the AVR is fully up.


Hope you can provide some insight and solution. This is a very annoying and unacceptable problem.

joed32
03-26-2012, 06:44 AM
It could be that the commercials themselves are at fault. I hardly ever watch a commercial so I'm no expert about them. I only watch recorded shows and use 30SKIP.

texasbrit
03-26-2012, 09:37 AM
I'm in DFW and I have seen this problem occasionally on ABC. Looks to me like the problem is an incorrect audio setting on the signal from the station - maybe the signal indicates DD 5.1 when it's really only PCM (or DD2.0), or the other way around.
The setup where I have heard this is component/optical audio so it's not an HDMI issue.

1953
03-27-2012, 01:34 PM
The short end to a long story is that a complete power down of all equipment including unplugging the power center solved the problem.

maleaco
03-31-2012, 02:27 AM
I wish they could make commercial skippers!@

1953
03-31-2012, 01:47 PM
I wish they could make commercial skippers!@

Man, you are so right!

1953
03-31-2012, 08:41 PM
There I was so proud that my Dallas NBC & ABC affiliates commericals audio problem was solved last night. We were gone most of the day so upon our return I discovered not only had the problem returned it had expanded to the programs. Needless to say I am very frustrated. I am hoping you might want to consider re-elevaluating this bewilwidering situation.

I do have a question. Is there anyway my power center could cause this problem since the two Directv coaxial cables plus the OTA coaxial cable are routed through my Panamax power center then on to the Directv?

:banghead:

WestDC
04-01-2012, 10:01 AM
There I was so proud that my Dallas NBC & ABC affiliates commericals audio problem was solved last night. We were gone most of the day so upon our return I discovered not only had the problem returned it had expanded to the programs. Needless to say I am very frustrated. I am hoping you might want to consider re-elevaluating this bewilwidering situation.

I do have a question. Is there anyway my power center could cause this problem since the two Directv coaxial cables plus the OTA coaxial cable are routed through my Panamax power center then on to the Directv?

:banghead:

Change your cable route and test- easiest way to test it. GET BUSY :)

1953
04-01-2012, 02:16 PM
Change your cable route and test- easiest way to test it. GET BUSY :)

The Panamax has universal coaxial inputs. No specific in and outs. Comment?

1953
04-02-2012, 07:48 AM
UPDATE

During an event (the audio problem on Ch 5) I changed the sound field to 5 Channel Stereo. The result was perfectly normal 5 Channel Stereo. To further test during another event I changed the HR24 from Dolby Digital to PCM. Again perfect 5 Channel Stereo.

Yesterday I ran the HDMI from the HR24 to the Sony HX750. I turned up the TV's volume and watched Channel 5 for about an hour. During that time there were no events.

Today I will change out my HDMI cables to rule out a cable problem.

The last test will be disconnecting the sat and OTA coaxials from the power center and run them directly to the HR24 & AM21N.

Thanks for your continuing help.

1953
04-02-2012, 09:13 AM
Update 10:04 a.m. Apr 2

Changed all HDMI cables to Monoprice Premium 24AWG HS. Channel 5 NBC audio problem is still present. :confused:

1953
04-02-2012, 01:11 PM
Since this mornings update all of my additional tests proved fruitless.I now firmly believe the problem is with the Ch 5 NBC broadcast. If NBC can't do something to solve this issue we will simply switch to another sound field during effected Ch 5 programs (not commericals).I'm very tired now so it's time to end this project.

1953
04-13-2012, 10:00 AM
BIG NEWS!

Recently replaced my six year old Denon AVR 987 with a new 2012 Denon AVR 1912. So far the mystery audio problems with Dallas network affiliates are gone!

I truly appreciate all the help I have received. Hopefully, this is the end. I guess time will tell.

:D