New Audio Measures

[Garrettd]

To improve our capabilities in evaluating driver quality, the Windows Audio Team has developed several new machine endpoint measures along with updates to the existing system level measures to facilitate the evaluation of audio drivers.

Updates to existing measures

As our targeting abilities have improved, we have identified several legacy measures that are in the process of being replaced with new measures that will more comprehensively test for the same passing criteria:

Evaluation	Legacy Measure ID	New Measure ID
Percent of machines with at least one audio crash	23032999	38373370
Percent of machines with at least one audio hang	11458540	38880837
Percent of machines with at least one audio stream initialization failure	12111510	39415055

While these new measures are coming online, the existing legacy measures will continue to be used and reflected in reports shared with driver publishers until they are phased out in Q1 2023.

New measures

In addition to leveraging system level measures, Microsoft can now evaluate driver quality at the machine endpoint level. The following measures are currently in evaluation for feedback through 12/21/23 and will be operationalized into Driver Shiproom publishing decisions in January of 2023.

Evaluation	New Measure ID
Percent of machine endpoints with at least one audio capture stream initialization failure per drive...	27593331
Percent of machine endpoints with at least one audio crash	295682777
Percent of machine endpoints with at least one audio hang	29745823
Percent of machine endpoints with at least one render stream initialization failure per driver	27539296
Percent of machine endpoints with at least one audio stream initialization failure per driver	26628516
Percent of machine endpoints with subpar stream initialization success rate	27657901
Percent of machines with at least one audio capture stream initialization failure	29415321
Percent of machines with at least one audio render stream initialization failure	39415262
Percent of machines with subpar stream initialization success rate	11458866