Text to Speech Modules and Boards
Ready to Use Voices in 25 Languages
- Text to Speech board level products for Industry, OEM and integrators.
- Proven and cost effective, the TTS-EM text to speech module products are used worldwide.
- Models range from 3.3 volt low power TTS modules, suitable for solar power design-ins, to 25 watt network capable products.
TextSpeak Embedded Text-to-Speech (TTS) Modules and Boards provide hardware-based speech synthesis for embedded and industrial systems. All models convert text data directly into spoken audio without the need for external computers or cloud services, making them suitable for always-on applications.
Standard interfaces such as RS-232, SPI, and Ethernet integrate with microcontrollers, PLCs, and host systems. Audio output options support direct speaker connection or line-level integration with amplifiers and PA systems. A no-license API is available to speed integrations.
Support 25 Languages
Broadcast quality, human sounding AI Text-To-Speech voices, Royalty free
Ambient Noise Sensing
Automatically adjusts speaker volumes
Dictionary Management
Adjust phonetics and pronunciation using a generic text editor
Flexible Power Options
3.3 to 24 volt powering options.
Control Users Remotely
Ethernet (HD3) provides remote audio, and web browser management
High-Definition Amplifiers
Versions include powerful 25w audio
The TTS product series support multiple languages and selectable voices, Flash-based memory allows remote firmware updates and dictionary management, enabling vocabulary customization and in-field updates. Additional features include remote control functions and optional ambient noise sensing for automatic volume adjustment. Supported languages include English, Arabic, Chinese, French, German, Japanese, Spanish, and others, making the modules suitable for international and multilingual deployments.
Our embedded text-to-speech modules and boards support applications such as transportation systems, industrial equipment, access control, kiosks, public information systems, and safety or emergency announcement platforms where reliable speech output from embedded hardware is required.
TTS-EM
- Standard Serial Input
- Powerful command set
- Switch languages in real-time
- 5 volt supply
TTS-EM-LP
- Designed for Solar applications
- Low power sleep modes
- UART and RS-232 support
- 3.3 & 5 volt supply
TTS-EM-HD2
- Host with connectors.
- For evaluation & deployments
- Accepts 3.3 & 5 volt supply
- RS-232 and Speaker Out
TTS-EM-HD3x
- Internal 25 watt amplifiers
- Wide 9-24 volt supply
- Serial, Ethernet (HD3-E)
- Ambient Noise Detection
Model Comparison
| Feature | TTS-EM | TTS-EM-LP | TTS-EM-HD2 | TTS-EM-HD3 |
|---|---|---|---|---|
| Network Connectivity | UART/RS-232 | UART/RS-232 | UART/RS-232 | Ethernet/RS-232 |
| Multi-Language | ✅ | ✅ | ✅ | ✅ |
| Text Input | Serial | Serial | Serial | TCP, UDP, RSS, Serial |
| Amplifier/Line Out | 2 W / 1Vpp | 2 W / 1Vpp | 2 W / 1Vpp | 25 W / 1Vpp |
| Power | 5V DC | 3.3/5 VDC & Sleep | 5 VDC | 9-24 VDC |
| Pre-Record Storage | 2GB Flash | 2GB Flash | 2GB Flash | 2GB Flash |
| USB Programming | ❌ | ❌ | ❌ | ✅ |
| Dictionary Management | ✅ | ✅ | ✅ | ✅ |
| Digital In/Out | ✅ | ✅ | ✅ | ✅ |
| Ambient Noise Sense | ⚙️ Ext Microphone | ⚙️ Ext Microphone | ⚙️ Ext Microphone | ⚙️ Integrated |
| Use Case Highlight | Standard Sockets | Solar Power | Host w/Connectors | OEM Ethernet |
Other Categories
earBridge®
- Interior/Exterior speaker support
- Dual 25 watt amplifiers
- Wide 9-36 volt power supply
- Serial, Ethernet and USB Interfaces
Integrations
- TextSpeak Notify and Mobile connectivity
- Cellular backup systems
- Patented SMS to Voice Alerting
- Pendant & Sensors Activation
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