mirror of
https://github.com/Stichting-MINIX-Research-Foundation/pkgsrc-ng.git
synced 2025-09-22 11:04:51 -04:00
70 lines
2.1 KiB
Plaintext
70 lines
2.1 KiB
Plaintext
Speech Dispatcher:
|
|
|
|
Key features:
|
|
|
|
* Common interface to different TTS engines
|
|
* Handling concurrent synthesis requests -- requests may come
|
|
assynchronously from multiple sources within an application and/or
|
|
from different applications
|
|
* Subsequent serialization, resolution of conflicts and priorities of
|
|
incomming requests
|
|
* Context switching -- state is maintained for each client connection
|
|
independently, event for connections from within one application
|
|
* High-level client interfaces for popular programming languages
|
|
* Common sound output handling -- audio playback is handled by Speech
|
|
Dispatcher rather than the TTS engine, since most engines have limited
|
|
sound output capabilities
|
|
|
|
What is a very high level GUI library to graphics, Speech Dispatcher is
|
|
to speech synthesis. The application neither needs to talk to the devices
|
|
directly nor to handle concurrent access, sound output and other tricky
|
|
aspects of the speech subsystem.
|
|
|
|
Supported TTS engines:
|
|
|
|
* Festival
|
|
* Flite
|
|
* Espeak
|
|
* Cicero
|
|
* IBM TTS
|
|
* Espeak+MBROLA (through a generic driver)
|
|
* Epos (through a generic driver)
|
|
* DecTalk software (through a generic driver)
|
|
* Cepstral Swift (through a generic driver)
|
|
* Ivona
|
|
* Pico
|
|
|
|
Supported sound output subsystems:
|
|
|
|
* OSS
|
|
* ALSA
|
|
* PulseAudio
|
|
* NAS
|
|
|
|
The architecture is based on a client/server model. The clients are all
|
|
the applications in the system that want to produce speech (typically
|
|
assistive technologies). The basic means of client communication with
|
|
Speech Dispatcher is through a Unix socket or Inet TCP connection using
|
|
the Speech Synthesis Interface Protocol (See the SSIP documentation for
|
|
more information). High-level client libraries for many popular
|
|
programming languages implement this protocol to make its usage as
|
|
simple as possible.
|
|
|
|
Supported client interfaces:
|
|
|
|
* C/C++ API
|
|
* Python 3 API
|
|
* Java API
|
|
* Emacs Lisp API
|
|
* Common Lisp API
|
|
* Guile API
|
|
* Simple command line client
|
|
|
|
Existing assistive technologies known to work with Speech Dispatcher:
|
|
|
|
* speechd-el
|
|
* Orca (see http://live.gnome.org/Orca/SpeechDispatcher)
|
|
* Yasr
|
|
* LSR
|
|
* BrlTTY
|