Netflix is focusing on improving it’s audio.

Netflix said today that it’s plans to bring studio quality sound to its audiences. Netflix will increase its audio bitrate up to 640 kbps on devices that support 5.1 surround sound and up to 768 kbps for Dolby Atmos although requires a premium subscription which includes more streams and 4k as well.

For slower connections Netflix is bringing adaptive streaming, a feature it’s long used for video, to your stereo. Meaning your audio bitrate will be based on network conditions and device performance limitations.

The changes were largely because of the Duffer Brothers. When Netflix invited the duo to view Stranger Things 2 in a living room setting to get a feel for audiences’ perspective, they were really that impressed with the way it sounded. Netflix boosted the bitrate for the show, and since then, it says it’s been working to roll out similar improvements across it’s service.