Using a sound trigger

Previous topics have indicated that capture using InTheAction can be triggered by clicking the Capture button and by remote control. There is a third method for triggering capture; a sound trigger that can be configured to react to, for example, a club or bat striking a ball, a starting klaxon or even a voice command.

When using voice as a trigger, the sound trigger reacts to the volume, not the quality, of the sound. Therefore a voice command will only work if louder than other incidental noise.

To use the sound trigger it must be activated and then configured to respond to the correct volume of sound.


Activating the sound trigger

Before use, the sound trigger must be activated. To do this:

1.	Select Tools > Customize... from the Menu bar.

2.	Select the Remote Control tab.

3.	Tick the box next to sound trigger to activate it.

4.	Close the Customize window. It is not necessary to configure the trigger at this stage.

Configuring the SoundTrigger

1.	From the menus select Tools > Configure SoundTrigger...

Hardware configuration. The input device will generally be set to "Microphone". It is not possible to use the video camera as an input device for sound so your computer will need to be equipped with a built-in or external microphone.

Detection configuration. Select the profile that is a closest match to the type of sound used as a trigger then adjust the Sensitivity slider to an appropriate level; where incidental sounds do not trigger capture but the trigger sound does. Both the hit counter and the Sound Trigger Server Status will help you assess which sounds do and do not trigger.

2.	Close the Configure SoundTrigger Properties window. The sound trigger is now active and can be used as a method of triggering InTheAction capture.