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IVONA SDK - Technical specification
PDF
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IVONA SDK
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IVONA Speech Cloud
(SaaS) |
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Requirements
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Storage memory (ROM) per voice
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- 100‐250 MB
- < 50 MB** - < 20 MB** |
0 MB
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Runtime memory (RAM)
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- 5 - 13 MB
- < 5MB** |
0 MB
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CPU
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Scalable
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Under 50 MIPS
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Chipset
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X86 (32/64 bit); ARM 7,8,9,11; Strong ARM; X-Scale; Sparc (32/64 bit)*; PowerPC*; MIPS*
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OS
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Linux, Windows, Android, Windows Mobile, Windows CE, iOS, MeeGo, Mac OS X, Solaris*, FreeBSD*
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API
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IVONA C/C++ API, IVONA Java API, TCP/IP, Unix socket, SAPI 4*, SAPI 5
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Web Services (SOAP), IVONA C/C++ API**, IVONA Java API**
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Key features
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BrightVoice™: superior speech output quality
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Languages and voices
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US English (2 male, 3 female, child); British English (male, 2 female); US Spanish (male, female, child**); Spanish (male, female, child**); German (male, female); French (male, female); Polish (2 male, 3 female); Romanian (female); Welsh; Welsh English; Australian English; Italian; Dutch**; Canadian French**; Brazilian Portuguese**; Portuguese**; Icelandic**; Russian**; Korean**; Danish**; Swedish**; Japanese**; Special Effects (SFX)/Character voices*
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Sampling rate
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8 kHz, 22 kHz (up to 48 kHz*)
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8 kHz, 22 kHz (up to 48 kHz*)
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Audio formats
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PCM 16 bit mono/stereo*, A-law, μ-law, mp3*, vorbis (ogg) *
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mp3, vorbis (ogg), PCM 16 bit mono*/stereo** A-law, μ-law
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Low response (start/stop) time
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SDK components
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Libraries, documentation, examples (C/C++, PHP), support; Supported events: word-highlighting (alignment of text with audio), visemes (lip-sync), bookmarks, SSML events
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Prosody control: volume, speed, pitch
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User level pronunciation lexicon
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(with regular expression rules support) |
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Language detection
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**
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**
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Phoneme mapping for mixed languages input
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**
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**
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Text preprocessing rules for specific domains
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*
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*
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Dynamic voice and language switching
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Mixing static expressive prompts
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Custom voices: voice branding or custom accent and/or style
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Support for natural reading of long texts
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Support for phonetic alphabets
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IPA, X-SAMPA, TeleAtlas®, Navteq™
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IPA, X-SAMPA, TeleAtlas®, Navteq™
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Expressive TTS effects
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**
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**
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Standards compliance
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W3C SSML 1.0/1.1, W3C PLS 1.0 (with IVONA extensions)
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W3C SSML 1.0/1.1 (with IVONA extensions)
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Built-in audio effects
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**
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Support for text highlighting
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REST support
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N/A
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* Available on request
** Feature in development
** Feature in development
Examples of implementations
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