NowSpeak Mobile TTS
for BlueCore5 Multimedia

High quality multi-lingual text-to-speech
designed for Bluetooth devices

text-to-speech - caller announce, guidance and device status

The world's leading text-to-speech solution
for Bluetooth devices

Pairing Guidance
"Connected to Jane's phone"
"Enter pin code 1234"

Caller Announce
"Call from 021 564 9855"
"Call from John Smith"

Device Status
"Phone disconnected"
"Battery low"

TTS on CSR BC5-MM chipset

Text-to-Speech Solution

NowSpeak's world leading multi-lingual text-to-speech technology has been optimised for the CSR BlueCore single chip Bluetooth platform. With the smallest memory footprint of any BlueCore TTS coupled with wideband audio output you get the best quality text-to-speech on a low cost platform.

Text-to-speech enhances the user's experience of your Bluetooth device making it easier to use. The user can hear who is calling and decide whether or not to answer, is given guidance through the pairing process and can be kept informed about the state of the device, such as battery level and connection status.

In fact our TTS solution can be used to speak a wide range of text data including people's names, phone names, phone numbers, fixed prompts and music metadata such as album, artist and song title, as well as radio station names.

Features

  • High quality voices producing natural fluent speech
  • Wideband audio generated in real-time
  • 12 major languages supported
  • Small footprint allows multiple languages on a device
  • Compatible with CSR audio plug-in architecture
  • Reference design for TTS plug-in integration
TTS Brochure

Fixed Prompts

The Nowspeak TTS system generates speech from text on the fly, this is necessary if you want to speak dynamic data, for instance caller names and phone names.

As the text for fixed device prompts is known in advance we offer two high quality solutions for speaking these:

TTS - fixed prompts can be spoken by TTS, which produces natural, fluent speech and has the advantage that minimal additional memory is required to store prompts. If you are already using TTS for name speaking then there is virtually no additional memory cost to using TTS for prompts.

Pre-recorded - this method uses compressed recordings to provide fixed prompts. These provide the highest quality speech, however, it also requires more memory then TTS prompts.





Demonstrations

We can provide multi-lingual TTS demonstrations for BlueTunes2 development board that speak names, phone numbers and fixed prompts in all available languages that allow you to evaluate the quality of our TTS solution.

We can also provide a pre-recorded prompts demonstration for BlueTunes2 development board that plays back fixed prompts in 6 languages so that you can evaluate their quality.

BlueTunes2 development board

As CSR has integrated TTS into their mono headset application we can provide the NowSpeak TTS plug-in for more detailed evaluation. Installing TTS and re-building gives you a fully working headset application with TTS prompts and caller announcement.