WaveSurfer ~ Visualize & Manipulate Sound


WaveSurfer is an open source tool for sound visualization and manipulation. Typical applications are speech/sound analysis and sound annotation/transcription. WaveSurfer may be extended by plug-ins as well as embedded in other applications.

Features:

  • Customizable – users can create their own configurations. Localization support.
  • Extensible – new functionality can be added through a plugin architecture.
  • Embeddable – WaveSurfer can be used as a widget in custom applications.
  • Transcription file formats – reads, and writes HTK (and MLF), TIMIT, ESPS/Waves+, and Phondat. Support for encodings and Unicode.
  • Multi-platform – Linux, OSX & Windows.

WaveSurfer

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eSpeak ~ Open Source Speech Synthesizer


eSpeak is a compact open source Linux and Windows speech synthesizer for English and other languages. eSpeak uses a “formant synthesis” method. This allows many languages to be provided in a small size. The speech is clear, and can be used at high speeds, but is not as natural or smooth as larger synthesizers which are based on human speech recordings.

eSpeak is available as:

  • A command line program (Linux and Windows) to speak text from a file or from stdin.
  • A shared library version for use by other programs. (On Windows this is a DLL).
  • A SAPI5 version for Windows, so it can be used with screen-readers and other programs that support the Windows SAPI5 interface.
  • eSpeak has been ported to other platforms, including Android, Mac OSX and Solaris.

 

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