Speech Listener Element

Modified on 2018/08/03 01:36 by Administrator — Categorized as: Input Registration

Summary

Element Icon Speech Listener
Info
Category: Input Registration AddIn: Base Layer
Creator: OkazoLab Scope: Parent event
Owns Snippets: None Usage: Snippets

Properties

NameDescription                              ConstraintsTypeOn
runtime
change
Settings
Working mode        Determines a working mode for speech recognition by this element        
Design Time..
        		enSpee..         
Recognition Engine        Defines the chosen speech recognition engine among all engines installed in the system        
Design Time..
        		Int32         
Target phrase        Target phrase to be recognized. If not empty, the element is triggered only if this phrase is recognized        
Normal..
        		String         
Phrase choices        Predefined choices of phrases to be recognized, whereas other will be ignored. Use ; as a separator between phrases        
Design Time..
        		String         
Trigger Once        If true, the element can be triggered only once while the parent event is active        
Design Time..
        		Boolean         
Test Recognition        Opens a test recognition window        
Design Time..
        		Boolean         
Runtime Status
Recognized Phrase        Last recognized phrase        
Status..
        		String         
Recognition Confidence        Confidence level of the last recognized phrase        
Status..
        		Single         
Recognition Status        Current status of the speech recognition process        
Status..
        		String         
Timing Statistics
Triggering Time        Indicates the latest event time when the element was triggered (in ms elapsed since activation of the parent event)        
Status..
        		clTime         
Is Triggered        Indicates that the element has been triggered at least once since activation of the parent event        
Normal..
        		Boolean         
Control
Is Enabled        If set to false the element is completely omitted when the experiment is run        
Design Time..
        		Boolean         
Title        Title of the element        
Design Time..
        		String         

Speech Listener Element allows real-time recognition of spoken words delivered through microphone line on a sound card. The speech is recognized into a text which can be used for determining a participant response. The elements requires Microsoft Speech API (SAPI) to be installed and properly configured on a computer.


Installation

Microsoft Speech API is included in Window 7 and Windows Vista. To make the element working in Window XP, Microsoft SAPI can be installed using Microsoft Office installation. Here is an MS article describing the SAPI installation process for Windows XP.

Snapshots

Snapshot 1

Snapshot 1

Snapshot 2

Snapshot 2


Practical Use

Technique 1

  1. Step 1
  2. Step 2

Technique 2

  1. Step 1
  2. Step 2

 // Check the trial outcome. Result and RT just other user variables
// insert code snippet here..