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Topic:
Could clock stretching fix this? Sound dropouts w/HDMI
This thread has 11 replies. Displaying all posts.
Post 1 made on Monday January 22, 2018 at 23:29
tomciara
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I moved a family room system roughly 3 miles, and every component and every cable was identical all except for a new Comcast box. Integra AVR, Sharp Elite, Oppo, Comcast X1.

I had the system running for quite a while while I was working elsewhere in the house, and all seemed well. Client reports a few seconds of sound drop out periodically. The picture is unaffected. He has a set of Sennheiser wireless headphones that continue to play normally, even when the sound through the AVR cuts out. They get analog audio, of course.

He hasn't tried his Blu-ray yet.

Comcast has come by and given him a different DVR, no change. The original HDMI from the Integra to the TV has been replaced with an Ethereal passive 5 meter, no change.

It is unusual, because the entire system was basically plucked up with a set of tongs and dropped down in a different house.

Is it possible that a clock stretching HDMI splitter may fix this?

Any other clues?
"Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing ever happened." - Winston Churchill
Post 2 made on Tuesday January 23, 2018 at 08:31
Duct Tape
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I'm interested in the answer to this was well.  I have a DirecTV HR44 feeding a Marantz SR6012 with HDMI, in my own home that sometimes has audio dropouts when the Dolby Digital is enabled in the DirecTV audio settings.
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Post 3 made on Tuesday January 23, 2018 at 09:39
burtont62
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I've had luck with a similar issue using one of these.

[Link: atlona.com]

Of course it's not from "Metra" so if you try it and it works don't say anything otherwise certain forum members might put a horse head in your bed.
Post 4 made on Tuesday January 23, 2018 at 12:15
Ernie Gilman
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On January 23, 2018 at 08:31, Duct Tape said...
I'm interested in the answer to this was well.  I have a DirecTV HR44 feeding a Marantz SR6012 with HDMI, in my own home that sometimes has audio dropouts when the Dolby Digital is enabled in the DirecTV audio settings.

Is there ANY pattern to when this happens? That would be a strong bit of information. Frinstance, if it happens every once in a while, but every time it's at the beginning of an ad, or at the moment when the program is supposed to resume after an ad, or when the studio breaks into live from the news desk for a news promo... in other words, when the actual audio track changes in some way, even including just being gone for a second... that would point to something.

On January 22, 2018 at 23:29, tomciara said...
I moved a family room system roughly 3 miles, and every component and every cable was identical all except for a new Comcast box. Integra AVR, Sharp Elite, Oppo, Comcast X1.

Doesn't this description just SCREAM that the problem originates with the cable box?

I had the system running for quite a while while I was working elsewhere in the house, and all seemed well. Client reports a few seconds of sound drop out periodically.

Does periodically mean what it means in science and engineering, which is "at defined intervals," or do you mean "every completely random once in a while with no apparent pattern"?

The picture is unaffected. He has a set of Sennheiser wireless headphones that continue to play normally, even when the sound through the AVR cuts out. They get analog audio, of course.

"They get analog audio...." Because the source has a pair of analog cable connected to the AVR's analog audio inputs, as well as running the source through the unit via HDMI? What brings the analog audio on board the AVR? Is there something you can unplug that will kill only the headphone audio?
He hasn't tried his Blu-ray yet.

Comcast has come by and given him a different DVR, no change.

If it's the same model, this makes sense. More information, please.

The original HDMI from the Integra to the TV has been replaced with an Ethereal passive 5 meter, no change.

It is unusual, because the entire system was basically plucked up with a set of tongs and dropped down in a different house.

No, it wasn't. You changed cable boxes.

Last edited by Ernie Gilman on January 23, 2018 12:23.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 5 made on Tuesday January 23, 2018 at 17:29
Duct Tape
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On January 23, 2018 at 12:15, Ernie Gilman said...
Is there ANY pattern to when this happens? That would be a strong bit of information. Frinstance, if it happens every once in a while, but every time it's at the beginning of an ad, or at the moment when the program is supposed to resume after an ad, or when the studio breaks into live from the news desk for a news promo... in other words, when the actual audio track changes in some way, even including just being gone for a second... that would point to something.

The last time it happened, I was watching a movie on Showtime.

It has happened while watching football games too
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Post 6 made on Tuesday January 23, 2018 at 19:04
oprahthehutt.
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.

Last edited by oprahthehutt. on January 24, 2018 17:59.
Post 7 made on Tuesday January 23, 2018 at 22:21
Ernie Gilman
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It COULD be convincing to your client if you showed them this discussion. It's not like all these installers all over the United States and Canada are bogusing up a discussion just for your particular client! It's a fault of the equipment which is to say the manufacturers and we're trying to fix it for lots of people.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 8 made on Sunday January 28, 2018 at 15:02
dsp81
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On January 23, 2018 at 08:31, Duct Tape said...
I'm interested in the answer to this was well.  I have a DirecTV HR44 feeding a Marantz SR6012 with HDMI, in my own home that sometimes has audio dropouts when the Dolby Digital is enabled in the DirecTV audio settings.

I have an HR44 with this issue, as well. In my situation it happens mainly when I watch live TV. I believe it is triggered when DirecTV inserts a local ad into a national network (they are saved locally to the DVR and triggered with software, I’ve read). I’ found that it stops if I run a single replay command. Not sure if that would fix your drop outs.
OP | Post 9 made on Monday January 29, 2018 at 10:43
tomciara
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Before I went out to try to remedy, Comcast came and swapped boxes again to fix the problem.
"Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing ever happened." - Winston Churchill
Post 10 made on Monday January 29, 2018 at 11:19
Ernie Gilman
Yes, That Ernie!
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Did the thing they did to fix the problem actually fix the problem?
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 11 made on Monday January 29, 2018 at 15:44
Soundsgood
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This sounds like an EDID problem. It can happen when the audio format from the source changes like DSP81 mentioned. Since you are an Ethereal dealer just call Brent. Show the client that it is a Comcast issue by swapping the HDMI cable on the cable box with the one on the Blu ray. If the Blu ray works fine then that proves it is the cable box and not your system. I have found this helps justify the cost to the client for whatever HDMI repair piece you need.
Post 12 made on Monday January 29, 2018 at 17:10
PatMac
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I've had this on my own Comcast x1 box for several years. I am currently connected to a Yamaha RXA1050. I am 90% certain my old Yamaha RXV671 did this as well. This is a very intermittent problem. I tried the Metra solutions without any improvement. We might go for a few months without one dropout, then get 5 in an hour. (5 in 1 hour is very rare.) Over the years, I believe Comcast has changed out the DVR, but not necessarily for this issue. Every X1 box connected to an AVR (or sound bar?) seems to do it. We don't get audio dropouts on our bedroom TV that does not have an AVR or sound bar connected to it. I believe this one is a challenge. I gave up on it a long time ago as I feel it is in the hands of Comcast or the DVR engineers. Good luck, you will need it!


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