Intermittent sound from Apple TV

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Level 1

4 points

Intermittent sound from Apple TV

I recently bought the new 2022 Apple TV 4K. I connected it directly to my LG C8 Oled TV HDMI. I am also connecting HDMI ARC from the TV to my old Bose Cinemate 120 because it doesn’t support HDCP 2.2.

When I plugged in the for the first time it worked. But it hasn’t ever since. There’s no sound coming from the Bose at all. If I restart the Apple TV or reconnect the HDMI sound is back on. Next time I turn on the TV same issue. I’m not sure what the issue here is and looking for a solution for this problem.

Apple TV 4K, tvOS 16

Posted on Jan 21, 2023 11:11 AM

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Answer 1

Jan 22, 2023 8:20 AM in response to srikar192

Try setting your Apple TV Audio Format to “Dolby Digital 5.1”, or else to “Stereo”.

Possibly this setup is not compatible with PCM Multichannel (‘Auto’) audio.

Adjust video and audio settings on Apple TV - Apple Support

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Answer 2

srikar192 Author

Level 1

4 points

Jan 22, 2023 8:57 AM in response to Urquhart1244

Already set to 5.1. No luck. And stereo is not an option because it won’t sound that good.

Does it have to do with HDCP 2.2 support? The Bose does only 1.4 and may be that’s messing the system. Would getting a HDCP converter solve the issue? Just speculating here after reading few other posts.

Spent a lot getting this Bose Junk and changing isn’t possible as of now

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Answer 3

Jan 22, 2023 9:11 PM in response to srikar192

Does it have to do with HDCP 2.2 support? The Bose does only 1.4 and may be that’s messing the system. Would getting a HDCP converter solve the issue?

I don’t think that matters for this issue. HDCP is about the video part of the stream, not the audio.

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Answer 4

srikar192 Author

Level 1

4 points

Jan 22, 2023 9:22 PM in response to Urquhart1244

Oh okay. The worst part is it disables the audio for other devices connected to the TV as well. If I disconnect Apple TV they work.

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Answer 5

Jan 26, 2023 5:34 AM in response to srikar192

Not sure how that could happen. Possibly the audio passthrough setting isn’t currently set in a functional way on the TV. Have you checked the TV settings for that?

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Intermittent sound from Apple TV

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