Storage memory (ROM) per voice

- 100‐250 MB
- < 50 MB**
- < 20 MB**

0 MB

Runtime memory (RAM)

- 5 - 13 MB
- < 5MB**

0 MB

CPU

Scalable

Under 50 MIPS

Chipset

X86 (32/64 bit); ARM 7,8,9,11; Strong ARM; X-Scale; Sparc (32/64 bit)*; PowerPC*; MIPS*

OS

Linux, Windows, Android, Windows Mobile, Windows CE, iOS, MeeGo, Mac OS X, Solaris*, FreeBSD*

API

IVONA C/C++ API, IVONA Java API, TCP/IP, Unix socket, SAPI 4*, SAPI 5

Web Services (SOAP), IVONA C/C++ API**, IVONA Java API**

BrightVoice™: superior speech output quality

Languages and voices

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*

Sampling rate

8 kHz, 22 kHz (up to 48 kHz*)

8 kHz, 22 kHz (up to 48 kHz*)

Audio formats

PCM 16 bit mono/stereo*, A-law, μ-law, mp3*, vorbis (ogg) *

mp3, vorbis (ogg), PCM 16 bit mono*/stereo** A-law, μ-law

Low response (start/stop) time

 

SDK components

Libraries, documentation, examples (C/C++, PHP), support; Supported events: word-highlighting (alignment of text with audio), visemes (lip-sync), bookmarks, SSML events

Prosody control: volume, speed, pitch

User level pronunciation lexicon

(with regular expression rules support)

Language detection

**

**

Phoneme mapping for mixed languages input

**

**

Text preprocessing rules for specific domains

*

*

Dynamic voice and language switching

Mixing static expressive prompts

Custom voices: voice branding or custom accent and/or style

Support for natural reading of long texts

Support for phonetic alphabets

IPA, X-SAMPA, TeleAtlas®, Navteq™

IPA, X-SAMPA, TeleAtlas®, Navteq™

Expressive TTS effects

**

**

Standards compliance

W3C SSML 1.0/1.1, W3C PLS 1.0 (with IVONA extensions)

W3C SSML 1.0/1.1 (with IVONA extensions)

Built-in audio effects

**

Support for text highlighting

REST support

N/A