Brand New Apple TV 4K has choppy sound in Home sharing with MacBook Pro

Welcome to the Apple Support Communities!

If you are hearing poor sound with your Apple TV 4K, take a look at the audio notes the the resource below. Also, try connecting on the 2.4 Ghz Wi-Fi network to see if you notice a difference.
Surround sound settings on your Apple TV 4K or Apple TV (4th generation)

​Best Quality Available
To experience the best possible sound quality, here's what you need:

• Go to Settings > Video and Audio > Surround Sound and choose Best Quality Available.
• With an HDMI cable, make a direct connection1 between your Apple TV and a television or audio receiver that supports LPCM (uncompressed or lossless audio formats) or Dolby Digital2 (compressed multichannel audio formats, including 7.1 and 5.1) audio.

1. Your sound quality depends on the device that's directly connected to your Apple TV.
If you connect your Apple TV directly to a television that only supports stereo-quality audio, you'll hear stereo-quality even when you play 7.1 content.

2. Over HDMI, the Best Quality Available setting outputs Dolby Digital 7.1 or 5.1 as uncompressed LPCM. Some receivers might not show Dolby Digital as the current format, even though there's no loss in audio quality.

Other audio settings

While the Best Quality Available setting automatically outputs the best possible audio quality, there are two other settings that you can choose in Settings > Video and Audio > Surround Sound:

• Dolby Digital 5.1: This setting re-encodes surround sound to Dolby Digital 5.1, which might help if your TV or receiver has compatibility issues with multichannel LPCM audio.
• Stereo: This setting plays only stereo audio.