Windows 10 License Key: Dts Sound Unbound

I know that DTS is a company that produces audio technologies, such as DTS:X. Maybe "Sound Unbound" is one of their tools or a bundled product. However, a quick check shows no official product by DTS named "Sound Unbound". Could it be a third-party software or a misstatement? The user might have seen something online about activating enhanced audio features using a license key. Alternatively, there's a possibility of a misunderstanding between DTS and Windows 10's built-in features.