https://techcrunch.com/2019/05/01/netflix-launches-high-quality-audio-for-tv-viewers/

Netflix this morning announced a new feature for its streaming service focused on offering viewers better sound. The company is rolling out “high-quality audio,” or an audio experience that features a higher bitrate for TV devices that support either 5.1 or Dolby Atmos. Depending on the device and the customer’s bandwidth capabilities, the actual bitrate you receive will vary, Netflix says.

However, it will range from 192 kbps (good) up to 640 kbps (great) for 5.1, and from 448 kbps to 768 kbps for Dolby Atmos — which is available to members subscribed to the Premium plan.