Kamaelia docs : Kamaelia.Audio.PyMedia.Output

Audio Playback using PyMedia

This component plays raw audio sent to its "inbox" inbox using the pymedia library.

Example Usage

Playing 8KHz 16 bit mono raw audio from a file:

Pipeline( RateControlledFileReader("recording.raw", readmode="bytes", rate=8000*2/8,
          Output(sample_rate=8000, channels=1, format="S16_LE"),
        ).run()

How does it work?

Output uses the PyMedia library to play back audio to the current audio playback device.

Send raw binary audio data strings to its "inbox" inbox.

This component will terminate if a shutdownMicroprocess or producerFinished message is sent to the "control" inbox. The message will be forwarded on out of the "signal" outbox just before termination.


Kamaelia.Audio.PyMedia.Output.Output

class Output(Axon.ThreadedComponent.threadedcomponent)

Output([sample_rate][,channels][,format]) -> new Output component.

Outputs (plays) raw audio data sent to its "inbox" inbox using the PyMedia library.

Keyword arguments:

  • sample_rate -- Sample rate in Hz (default = 44100)
  • channels -- Number of channels (default = 2)
  • format -- Sample format (default = "S16_LE")

Methods defined here

Warning!

You should be using the inbox/outbox interface, not these methods (except construction). This documentation is designed as a roadmap as to their functionalilty for maintainers and new component developers.

__init__(self[, sample_rate][, channels][, format][, maximumLag])

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Feedback

Got a problem with the documentation? Something unclear that could be clearer? Want to help improve it? Constructive criticism is very welcome - especially if you can suggest a better rewording!

Please leave you feedback here in reply to the documentation thread in the Kamaelia blog.

-- Automatic documentation generator, 05 Jun 2009 at 03:01:38 UTC/GMT


Kamaelia is an open source project originated from and guided by BBC Research. For more information browse the site or get in contact.

This is an ongoing community based development site. As a result the contents of this page is the opinions of the contributors of the pages involved not the organisations involved. Specificially, this page may contain personal views which are not the views of the BBC. (the site is powered by a wiki engine)

(C) Copyright 2008 Kamaelia Contributors, including the British Broadcasting Corporation, All Rights Reserved.

This web site is powered by the same code created for the bicker manor project. For more details, contact Michael Sparks at BBC Research directly (cf contact)