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Loquendo TTS Telephony |
Loquendo TTS Multimedia |
Loquendo TTS Multimedia Compact (EMBEDDED) |
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Simultaneous Channels |
Virtually unlimited |
2 Channels |
2 Channels |
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Memory Requirements |
10 MB RAM for the engine,
80 MB per voice
3 MB per channel |
10 MB RAM for the engine,
50 MB per voice,
3 MB per channel |
10 MB RAM for the engine,
20 MB per voice |
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Sampling Rate |
8 KHz PCM (linear, A-law,
Mu-law) mono |
PCM mono/stereo. Any sample
rate up to 48 KHz |
| Licensing |
Rapid network-based upgrade
of language/ voice/#ports |
Serial number based |
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CPU Requirements |
Any Pentium family processor
(or equivalent) |
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Supported OS |
MS Windows (7, XP, Vista, Server 2003, Server 2008*)
Red Hat Enterprise Linux 3, 4, 5*; SUSE Linux 10, 11
* Available for both 32 & 64 bit versions |
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Interfaces |
C/C++ Loquendo API
SAPI 4 and 5 (Win 32)
Loquendo TTS ActiveX (Win 32)
Microsoft .net
W3C SSML 1.1, W3C PLS 1.0 |
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Multilingual & Multivoice |
Norwegian, Swedish, Danish, Finnish, Australian English, U.S. and U.K. English, Russian, Mandarin Chinese, French, Canadian French, American Spanish, Mexican, Chilean and Argentinian Spanish, Castilian, Catalan, Valencian, Galician, Brazilian, Portuguese, Esperanto, German, Dutch, Polish, Greek, Turkish, Italian, Arabic, Romenian*, Japanese*, Indian English* (* under development) |
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SDK |
TTS Director (includes also
Lexicons Manager and Voice Creator); TTS Voice Experience;
User and Developer Documentation |
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Key Features |
Expressive TTS
Mixed Language Capability:
Phonetic Mapping, Language guesser
Dynamic switching between multiple voices
Pronunciation lexicon - for user definable pronunciation
(acronyms, foreign names, etc.)
Flexible voice control - for creating special effects, modifying
speech rate, pitch and timbre
Voice Flavour - support for different compression and sampling rates
Variable output frequency coding up to 48 kHz
Audio Mixer
Built-in audio effects, i.e. reverb, stereo balance, graphic equalizer
SMS and E-mail Preprocessing
Customized voices - for extending corporate image and branding
through unique voices
Support of the phonetic alphabet X-SAMPA (TeleAtlas® and
Navteq™ extensions included) and IPA |
From September 2009, versions of Loquendo TTS up to and including
version 5 are no longer supported. |