Optoma DAC80 - Manual (Page 9)

8
NuForce DAC-80 Digital to Analog Converter
WASAPI Mode
Some media players require a special WASAPI plug-in to enable support for WASAPI. Once installed and activated,
WASAPI can be selected as the default audio driver.
Below is a screenshot of Foobar2000 in Windows 7 (after WASAPI plug-in has been installed) showing different
supported device driver options. As you can see, both Direct Sound (DS) and WASAPI options are listed.
Once the WASAPI mode is selected, the native sample rate will be employed. No adjustment in Audio CPL is
required. Look at the
Stream Status. You will note in the screenshot below that the actual sample rate used does
not equal the selected sample rate. This is a result of WASAPI’s ability to provide automatic playback of the music
file in its native format apart from those of other Sound Effects settings.