Hi PeterD,
Thanks for choosing Microsoft Community.
In your description, you have a question about the current audio driver used by Windows. I will explain and provide some steps for you below.
WASAPI (Windows Audio Session API) is an API used by Windows to control audio devices. While audio programs like Audacity can use WASAPI drivers, the default audio system in Windows may use different drivers.
How to Check the Currently Used Audio Driver
- Open Device Manager
- Press the Windows key and search for Device Manager, then open it.
- Expand Sound, video and game controllers.
- Select the Audio Device
- Right-click on the audio device you are using and select Properties.
- Check the Driver Tab
- In the Driver tab, you can see details about the currently used driver, including the driver provider and version.
Check if Audacity is Using WASAPI
- Open Audacity
- Run Audacity and select Preferences from the Edit menu.
- Select Audio Device
- In the Devices tab, check the Host dropdown menu. You should be able to select WASAPI here.
- After selecting it, you can confirm that Audacity is processing audio through WASAPI.
Whether Windows is Using WASAPI
Windows primarily uses WASAPI by default, but it can also use other drivers (like ASIO, MME, etc.). When you select WASAPI in Audacity, the audio is processed through that driver.
Additional Tips
- Check Audio Settings: To check your audio devices in Windows, go to Settings > System > Sound to confirm the default device.
- Audio Test: After selecting WASAPI in Audacity, try recording or playing back audio to ensure everything is working properly.
Thank you for your understanding and support.
Best regards,
Zev - MSFT | Microsoft Community Support Specialist