Sensoray 2224 Windows - Manual (Page 72)

Audio Meter/Left,Right/Level
The hexadecimal values returned from a call to S2226_GetAudioMtrLevel().
Audio Meter/Left,Right/dB
The values returned from a call to S2226_GetAudioMtr_dB().
Audio Meter/Left,Right/Hold dB
The values returned from a call to S2226_GetAudioMtrHold().
Audio Meter/Settings/Test
Actually the Input Selection. Selects the Audio input that feeds the Meter.
Audio Meter/Settings/Input
Actually the Test Selection. Selects whether a test tone is generated and at what level.
Audio Meter/Hold/Selection
Selects the time duration that a maximum amplitude is held on the hold register.
Audio Meter/Hold/Release
When checked, allows the Hold circuit to release the current maximum value and hold the next highest
value after the hold duration.
When not selected, the maximum value in the hold register will not change unless a new maximum is
detected.
Snapshot Demo Application
The snapshot demo application was designed for customers that need to retrieve and save images faster
than allowed by the S2226_SnapshotToFile function. Instead of handshaking with the device, the raw
preview data is streamed and captured via callback. The user is responsible for ensuring that an allowed
scaling is performed.
The snapshot demo can be launched from the Start menu. Start->Program Files->Sensoray->2226-
>2226 Snapshot Demo.
Due to USB2.0 bandwidth limitations, any scaling over 640x480 will not be at full frame rate. At
Sensoray, we measured 10fps for 1280x720 and 4fps for 1920x1080. Results may vary.
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