TTS (text-to-speech) LSIs


Feature 1. All you have to do is input the text

TTS LSIs just need text to output speech.
And text is easy to create and modify.

Feature 2. Minimal data size

TTS LSIs just need text to output speech.
Therefore the speech data size is very small.
e.g. 20 minutes of speech spoken at 180 words/min. only requires around 30 KBs.

Feature 3. Easy to integrate

Epson's voice guidance LSIs use a message protocol based on asynchronous serial interface. This means they are easily integrated into a wide range of host devices and microcontrollers, reducing development time and costs, and helping achieve faster time to market.

Feature 4. The S1V30120 is multi-lingual

The S1V30120 supports the following languages with one chip:

  • US English
  • Castilian Spanish
  • Latin American Spanish

In addition, 9 different voices are supported.

TTS (text-to-speech) LSI lineup

Series name S1V30120
Status MP
Power supply 3.3v/1.8v
Clock 32.768kHz
Host interface SPI
(command control)
TTSSampling frequency 11.025kHz
Voice stream data replay Supported by command control through the host interface
Decode format ADPCM
Bit rate -
DAC High quality 16- bit DAC
Speaker amp. -
Package TQFP 13-64 (10 mm x 10 mm, 0.5 mm pitch)
Supported languages US English
Castilian Spanish
Latin American Spanish    
TTS Engine: Fonix DECtalk(R) *1

*1: Fonix DECtalk(R) is a registered trademark of Fonix Corporation.