WTS701
Description
The WTS701 is a high quality, fully integrated, single-chip Text-to-Speech solution that is ideal for use in applications such as automotive appliances, GPS/navigation systems, cellular phones and other portable products or accessories. The WTS701 product accepts ASCII (Unicode and Big5 for Mandarin) input via a SPI port and converts it to spoken audio via an analog output or digital CODEC output.
Key Features
- Fully Integrated Solution Single-chip compact text-to-speech translation No algorithm development required Selectable digital and analog audio output Simple SPI interface Reprogrammable solution enables loading different voice or language
- Text-To-Speech Algorithm Characteristics High quality speech synthesis using speech element concatenation Winbond’s standard 100-year speech retention Audio stored as uncompressed analog waveform - industry’s highest quality and most natural sounding
- Easy to Use and Control Real time conversion for streaming text General text preprocessing and normalization User customization for special characters such as SMS icons and chat emoticons User customization for application specific abbreviations
- Language Support Support U.S. English and Mandarin (Beijing dialect) Other languages in development or in planning
- Device Management Accepts ASCII, Unicode or Big5 streaming text 256-byte text buffer Playback of Phonetic Alphabet Variable speed playback Control of pitch change Supports Power Down mode. Supports Pause and Resume, Stop and Finish text conversion commands Embedded characters support to control speed, volume, case sensitivity, and silent behavior
- Peripheral Control 16-bit linear PCM slave interface output support SPI serial port for control commands and status report to system’s host controller Hardware handshake control signals Analog audio output with 8Ω speaker driver, digital volume control and line level o/p Analog audio input (AUXIN) for driving external audio to the speaker
- Low Power Consumption +2.7 to +3.3V (VCC) Supply Voltage Operating Current: ICC Convert = 35 mA (typical) Standby Current: ISB < 1µA (typical)
- Device Characteristics Available in 56-lead TSOP package Industrial temperature range (-40C to +85C) 3V/5V logic tolerance -3- Publication Release Date: May 2003 Revision 3.09 WTS701
