Skip to main content
Join the official Python Developers Survey 2018 and win valuable prizes: Start the survey!

Speech recognition extension library

Project description

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

Basic example

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.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
dragonfly-0.6.5-py2.5.egg (328.4 kB) Copy SHA256 hash SHA256 Egg 2.5 Apr 8, 2009
dragonfly-0.6.5.win32.exe (221.3 kB) Copy SHA256 hash SHA256 Windows Installer any Apr 8, 2009
dragonfly-0.6.5.zip (584.8 kB) Copy SHA256 hash SHA256 Source None Apr 8, 2009

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page