In-vehicle text to speech solution

For drivers, the voice guidance is one of excellent interfaces for obtaining significant information without looking aside. The solution installed in the in-vehicle equipments such as a car navigation system provides an excellent "Text-to-Speech" function for guiding any text sentence to driver.

This function is provided as a text to speech middleware product for in-vehicle equipments, and is ready to support both for standalone equipment and for system cooperating with center service.

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Advanced features of Hitachi text to speech solution

• (1) High quality of Text-to-speech(open in new window)
• (2) Read text in proper pronunciation as Japanese usage(open in new window)
• (3) Provide various voices(open in new window)

Other characteristics:

• Other languages support: Ready for Chinese, English up to the present
  • Chinese(open in new window)
• Center cooperation model: The dictionary or the conversion module, etc. can be allocated in the center system.

System configuration for standalone system

Basic opeartional specification

• Primary CPU: SH3/SH4
• Sampling frequency: 22.050KHz
• ROM:220KB for program
        1.6MB for Japanese dictionary
        8MB or 48MB for sound source data
• RAM: 4.5MB for working memory
• CPU load: Less than 50MHz
• Primary OS: WinCE, ITRON*

* able to support for other OS/CPU

System configuration for center cooperation system

By using center cooperation type system, the high quality text-to-speech service with suppressed terminal cost.。

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