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AcquireSpeech is the key component for interacting with the Toolkit.  AcquireSpeech is designed for use with a microphone, but also supports text input of user speech and the use of prerecorded speech samples.

Launching AcquireSpeech

Acquirespeech AcquireSpeech launches by default when you press, 'Launch', under the 'Run It All' group in the Virtual Humans Launcher, is pressed.

To launch AcquireSpeech manually, expand the Launcher options with the 'Advanced' button , then and press 'Launch' which is found next to 'Speech Recognition' in the 'Input/Output' tab.  This will launch both the PocketSphinx Wrapper and AcquireSpeech.  There  Typically, there is a slight delay to allow while PocketSphinx to load loads before AcquireSpeech connects to it.

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AcquireSpeech is configured to automatically select your default audio input on start , and so will usually does not require manual configuration. It   However, it can be configured by either a configuration file or the Settings Tab.

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The Recorder tab is the primary interface for AcquireSpeech. From here, you can   Go there to start a session, monitor you your microphone level, and/or trigger recording using with the press-to-talk 'Speak' button.

To start an AcquireSpeech session, hit click the green 'Start Session' button in the upper right, or Ctrl+r.  Once the session is has started, the large 'Speak' button in the top of the tab will brighten and become interactive.  When depressed, the 'Speak' button turns bright green.  

To say something to the Toolkit, simply press the 'Speak' button and hold it down while you speak. You should see the speaking.  The horizontal level meter fill in green shows the input levels as you speak, showing the input levels. If you see .  The meter indicates the correct level with green; if there is a lot of red or yellow or red, try turning down your the microphone volume.  When you're finished speaking, release the button. You will see what you've said  The utterances spoken, or the ASR's best guess, fill will appear in the 'Text:' area below. You can also change the speaker   The speaker can be changed with the drop down box, if necessary.  The default is "user" throughout the Toolkit.

To lock the mouse to the 'Speak' button, such as during a presentation, press Ctrl+m.  This will also unlock the cursor when you are finished.  When   When the mouse is locked, the 'Speak' button darkens, to either dark gray or dark green.

To stop a session, such as when you've finished either to end a Toolkit session , or wish to change Settingssettings, hit click the red , 'Stop Session' button.

Configuring AcquireSpeech

• General Settings include includes the recording time to record before , and after , the "Speak" button is pressed; default is .25 seconds.  This added time allows AcquireSpeech to capture the entire spoken utterance bracketed by silence or background noise without requiring any special action from the user.
• VHMSG Settings covers how AcquireSpeech interacts with other components.  For most users, the Server and Scope will be filled in automatically with the values "localhost" and "DEFAULT_SCOPE", respectively. It is not recommended you change   We do not recommend changing these values without referring to the expanded documentation.
• Microphone Settings are the bottom block , and cover the sound setup for AcquireSpeech.  The Microphone check box at the top should be checked, indicating a microphone should will be used.  The sound input can be changed with the drop down box, but the default setting should work for most users.  If AcquireSpeech isn't hearing you, try a different input or microphone.  If no options are presented in the drop down, please ensure check that your microphone is connected and working properly in your OS's configuration tool.
• Show recognition results toggles display of the recognition feedback from Pocket Sphinx, or whichever recognition server is connected, underneath the 'Speak' button in the Recording Tab.  'Default speaker' is used to connect to NPCEditor, and supports multiple speakers.  The speaker here should match the 'Agent Name' in the "Smartbody" account in 'People' > 'Accounts' of NPCEditor.
• Record Session and Record Utterances toggle recording of the user's speech.  The session recording is of everything said into the microphone from when an AcquireSpeech session is started, while utterances .  Utterances are split recordings from when the 'Speak' button is depressed.

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Message API

Receives

Output

AcquireSpeech sends out events transmitting recognition result and notifications about the state of recording

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