TX-NR646 HDMI audio distorts and sounds like an alien

[rvrkids offline]

Please help....we have an audio problem that has shown itself in the past 6 months or so. Our Cable DVR is connected via HDMI to our receiver and our receiver via the ARC HDMI to our TV.

Every once in a while, all of a sudden, the audio changes and the people sound like an alien talking....very high pitched and jumpy. This can happen in the middle of a program with no change in audio signal (i.e. commercial break, etc.).

We can always fix it by changing the channel and going back but it is happening several times a day and getting annoying. Firmware is up to date.

Any suggestions??

Thanks.

[ForumMod10]

Hello. Is it only happening with that one source, or is this audio issue happening with all of your connected sources?

[rvrkids offline]

Thank you.

It is only with this source, but, I have changed the connections (Cable DVR directly to tv via hdmi and optical to receiver) to see if it was the DVR but it does not appear to be as we don't have this problem when connected via hdmi directly to tv. The only other source that is connected to receiver via hdmi is our dvd player which we rarely use anymore. Only other connection(s) is via Wifi for internet audio streaming and if we use smart tv, connections come through the ARC hdmi for audio.

[ForumMod10]

Hello. So you have the HDMI cable from the cable box to the HDMI input on the display? Additionally, you have an optical cable from the "Digital Output" on the display to the "Optical Input" on the receiver. With this configuration this distortion still happens, correct?