User`s manual

V 1 P R O F E S S I O N A L 5 . 7

or subtract a small number of frames from the impact frame number that the V1

computes based on audio received. With “full” and even “half” preview-resolution

DV video, it is not unusual that this value be as great as +/- 10 or more. Under

situations of varying computer load (other software running, or use of laptop battery),

an accurate setting of the adjustment may also drift. Experience will determine the

optimal setting for your particular system configuration.

Testing the audio trigger

The boxes that you see to the right of the

Enable

check box are used to test the audio

trigger. As the microphone you’ve selected picks up sound, you will see this graphically

represented in the form of a blue “meter.” When the V1 interprets the sound as an

impact, a red square is illuminated. Adjust the sensitivity setting until the desired results

are achieved. Note that this testing feature does not apply to the camcorder

microphone setting.

If you are unable to achieve enough sensitivity, you may need to enable the

“microphone boost” setting on your Windows control panel. To find this check box,

click the Windows Start button then open the Control Panel. Open the “Sounds and

Audio Devices” icon. Click on “volume” under sound recording, then Advanced

under the microphone column.

Recording Audio

Audio may be recorded and played back if a tab is recorded using the

Continual

recording mode. Audio is never recorded when using the

triggered recording modes.

Audio is always recorded from the camera’s built-in microphone when using a

DirectShow video driver to capture DV video (as from an IEEE-1394 or FireWire

camera). To record audio when using a Legacy VfW video capture driver, you must

select the

Audio

button before recording begins.

NOTE:

When in “Legacy VfW” mode, depending on the driver, audio may be

recorded from either the camera’s microphone or the PC’s microphone.

When a video is recorded with audio, a small “loudspeaker” icon will appear in the

preview window when you move the cursor over a video’s tab. To hear this audio, you

must select the

Audio

button before video playback begins.

The HYTEK USB Force Plate

The V1 can interface with your HYTEK USB force plate in order to display and

record a person’s relative weight distribution during a golf swing or other athletic

motion. With this information, you are able to visualize the way in which weight is

shifted from side to side, front to rear, etc., during the motion. NOTE: This is a

feature which may require special licensing; your V1 license must have the force plate

feature enabled.