ISRNotifySink::VUMeter

HRESULT VUMeter(QWORD qTimeStampBegin, WORD wLevel);

Notifies the application of the current VU level, which indicates the loudness of the digital-audio stream.

· Return value is ignored.

qTimeStampBegin

[in] Time, in bytes, when the VU meter reading was taken.

wLevel

[in] Value from 0 to 0xFFFF that indicates a linear level. 0xFFFF is the loudest volume that the VU meter can register.

The VU level returned by this function is only a rough estimate used to display a visual indicator on the screen. The engine sends this notification about eight times per second.