Cairo / News: Recent posts

Cairo-server is an open source speech resource server written entirely in the Java programming language. Cairo-server builds upon pre-existing open source speech projects such as FreeTTS and Sphinx and adds additional functionality to meet the requirements necessary for use in enterprise scale deployments of speech/telephony applications.

Version History
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Cairo-server v0.3 - adds improved support for speech clients by adding hotword recognition mode, playback of pre-recorded prompts, SIP softphone integration and termination of active requests and sessions from the client. Natural language processing has also been added and there have been further improvements made in the areas of endpointing and speech recognition performance. Additionaly, this release also factors out some common code into 3 new sub-projects: cairo-rtp, cairo-sip and cairo-client. What was previously Cairo has now been renamed to cairo-server.... read more

Project Cairo sets out to provide an enterprise grade, Media Resource
Control Protocol Version 2 (MRCPv2) compliant speech server solution
utilizing existing open source speech resources.

Version History
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Cairo v0.2 adds support for establishing sessions using Session Initiation
Protocol (SIP) signalling and improves speech recognition performance by
matching the voice models used by Sphinx to the sampling rate of the
received audio data. ... read more

Cairo sets out to provide an enterprise grade, MRCPv2 compliant speech
server solution utilizing existing open source speech resources.

This is the first release for the Cairo project. This release provides
support for basic speech synthesis and speech recognition functionality
using Media Resource Control Protocol Version 2 (MRCPv2) for the control
channel between the speech client and the speech resource and Real-time
Transport Protocol (RTP) for streaming audio to and from the media
sink/source.... read more