Issue with Onkyo Receiver and Dolby Digital

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richarda

144 posts

Master Geek

Topic # 94944 22-Dec-2011 18:10

x-cross posting from Home Theatre

I have just brought an Onkyo TX-NR609 receiver. I have an issue whereby there is a loud clicking noise when I change channels or switch to the guide if I have the HDMI Audio setting on my MySky HD box set to Dolby. If I change it to PCM it is fine but i do not get Dolby Digital Sound. My previous Sony reciever worked fine so it is obviously an issue with the Onkyo. Has anyone else come across this and found a fix. Using the Optical connection is not possible as I am using cat5 cables to feed sky to my TV which is in a different room than the sky box.
Cheers
Richard

Oblivian

2734 posts

Uber Geek
+1 received by user: 287

Reply # 560774 22-Dec-2011 18:17

Click or clunk? The extra amplifiers kick in when a 5.1(or more) source is found. And if for whatever reason its deciding to cutout for a fraction of a second between changing functions, the amps will turn off/on

richarda

144 posts

Master Geek

Reply # 560825 22-Dec-2011 21:52

It is a loud clicking noise, typically 4 or more in rapid sucession. It comes through the front speakers so is really loud. If i cannot find a fix i will need to return the receiver.

Oblivian

2734 posts

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+1 received by user: 287

Reply # 560848 22-Dec-2011 23:54

Sounds to me like a break in the audio stream syncing up. Check you don't have any sort of fuzzy audio upscaling on (IE use standard format decode for instance to test)

And does the new one do HDMI HDPC where the old one didn't? Or some HDMI processing like upscaling.

I have the Zinwell and a SR606, and I notice when turning on the STB the audio light going nuts as the decoder boots, and sometimes it wont sync and give any pic/sound until I restart it. So they appear fussy on handshaking.

(And the amp clunk is the reason they are sometimes called ClunkYo :) )

Jaxson

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Reply # 560865 23-Dec-2011 07:52

Yep sounds like an hdmi hangup which wasn't shown before as (maybe?) you were using optical initially.

I was going to say try another cable but you're using baluns.

My earlier onkyo does the clicking of the relays when switching between modes, but this doesn't make it out through the speakers themselves though...

Shock

534 posts

Ultimate Geek
+1 received by user: 30

Trusted

Reply # 561058 23-Dec-2011 20:50

I have a TX-NR609 and get a clicking in the reciever, not through the speakers. However I also had this previously on my sony reciever when Dolby digital was kicking in from PCM. Sound is over HDMI and believe it is the syncing.

Connecting to UFB? Go with Bigpipe and use this link for free credit!

richarda

144 posts

Master Geek

Reply # 561282 24-Dec-2011 21:35

I managed to fix the problem. In the MySkyHD settings I had to have both HDMI and Optical audio set to Dolby. If I have optical set to PCM and HDI to Dolby I get the static noise through the speakers on my reciever. Lucky my second TV (the one without the receiver) allows me to set the HDMI input to analogue so I can run RCA cables from the sky box into the TV to get sound.

Oblivian

2734 posts

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+1 received by user: 287

Reply # 561285 24-Dec-2011 21:44

That sorta makes sense, as the optical audio stream would kick in faster than the HDMI one which has to sync up first.

Good to know its not a dud box :)