When using dax you are presented with several choices. which is the correct one to use? wdm-ks mme directx ?

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Photo of Reggie-k6xr


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Posted 5 years ago

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Photo of Mack McCormick

Mack McCormick, Elmer

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WDM is the preferred choice.

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Tim - W4TME, Customer Experience Manager

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These are different audio APIs supported by Windows. They have different characteristics.

MME uses the oldest Windows audio API which does not offer good play/record latency.

DirectX improves this, but still imposes a penalty of 10s of milliseconds due to the system mixing of streams from multiple applications.

WDM-KS avoids the mixing penalty of DirectX, and has very good latency characteristics; better than DIrectX.

In general, if you can get WDM-KS to work with your third-party audio application, then you should use it as Mack has indicated. Otherwise try DirectX next and MME last.