Speech recognition extension library
Dragonfly offers a powerful Python interface to speech recognition and a high-level language object model to easily create and use voice commands. Dragonfly supports following speech recognition engines:
- Dragon NaturallySpeaking (DNS), a product of Nuance
- Windows Speech Recognition (WSR), included with Microsoft Windows Vista and freely available for Windows XP
A very simple example of Dragonfly usage is to create a static voice command with a callback that will be called when the command is spoken. This is done as follows:
from dragonfly.all import Grammar, CompoundRule # Voice command rule combining spoken form and recognition processing. class ExampleRule(CompoundRule): spec = "do something computer" # Spoken form of command. def _process_recognition(self, node, extras): # Callback when command is spoken. print "Voice command spoken." # Create a grammar which contains and loads the command rule. grammar = Grammar("example grammar") # Create a grammar to contain the command rule. grammar.add_rule(ExampleRule()) # Add the command rule to the grammar. grammar.load() # Load the grammar.
The example above is very basic and doesn’t show any of Dragonfly’s exciting features, such as dynamic speech elements. To learn more about these, please take a look at the project’s documentation here.
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