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Poor Audio Quality

Ant2369

Ant2369

macrumors regular
Original poster
Jul 20, 2011
190
180
Connecticut
Set up my new Apple TV 4K. When connecting to my home theater the receiver displays “Multi channel in”. And the sound quality is very poor I tested it on Netflix as well as VUDU. Almost like it’s sending stereo sound over the speakers. If I hit the display on my receiver it says PCM. If I swipe down on the remote the audio output is set to the Apple TV if I change it to the receiver it goes into airplay automatically I lose the picture but the sound quality tremendously improved. I don’t recall ever having this type of issue with my previous Gen Apple TV 4 I have no idea what I’m doing wrong
 
vipergts2207 said:
How does it sound if you change the audio to Dolby 5.1 on the ATV? Also try messing with the 16-bit audio setting.
Click to expand...

I tried setting it to 5.1 it sounded a bit better but nothing compared a 4K blu ray or Netflix running on my XBox One S I didn’t try the 16bit audio. I have a brand new Denon X4300 receiver and 7.1 setup of all SVS Speakers so not anything cheap or outdated It was a vey muffled sound watching gun scenes from Deadpool on VUDO there was very muffled no “feel” of the guns firing If that makes sense
 
Is your Apple TV connected directly to your receiver, or to the TV first?
[doublepost=1506357390][/doublepost]Also; Is there an option on your receiver to switch between LPCM and bitstream? You probably want bitstream.
 
Poontaco said:
Is your Apple TV connected directly to your receiver, or to the TV first?
[doublepost=1506357390][/doublepost]Also; Is there an option on your receiver to switch between LPCM and bitstream? You probably want bitstream.
Click to expand...
It’s connected to the receiver directly I didn’t see any options to switch to bitstream but from the tech specs of the Apple TV I don’t think it supposed bitstream
 
Ant2369 said:
It’s connected to the receiver directly I didn’t see any options to switch to bitstream but from the tech specs of the Apple TV I don’t think it supposed bitstream
Click to expand...

The Apple TV outputs both, but it modifies the signal first (to add menu sound effects). Your receiver may not like what it is getting.
I think your only options are to play around with the Apple TV's audio out settings and the receivers audio in settings.
 
Yes, noticed the same thing.

iTunes movies, Netflix, all sound ok when using "highest quality" or whatever the option is.

However, when watching movies via the Vudu app, the sound is all muffled and distant.

When I change the Apple TV 4k sound to Dolby Digital 5.1, it sounds normal again. Guess its just an issue with the Vudu app.
 
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LtRoyalShrimp said:
Yes, noticed the same thing.

iTunes movies, Netflix, all sound ok when using "highest quality" or whatever the option is.

However, when watching movies via the Vudu app, the sound is all muffled and distant.

When I change the Apple TV 4k sound to Dolby Digital 5.1, it sounds normal again. Guess its just an issue with the Vudu app.
Click to expand...

That’s good to know...What is your set up? I’ll have to try watching something in iTunes. I watched a bit of Narcos on Netflix and it was ok maybe I need something more action to test the Netflix sound. Using the ESPN and Fox Sports app sound was great but it was also in stereo
 
Vudu app has a known bug with audio when set to Best Quality Available. Will just have to wait until the next update.
 
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All great info I was getting nervous I was gonna have to return my ATV 4K and that was one of the releases I was most excited for
 
I’m very happy to say it is 100% the Vudu app causing the poor audio quality on the Apple TV. Just watched a few scenes from Sicario over my Plex server and the sound was phenomenal
 
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