Espressif Systems ESP32-LyraTD-DSPG Audio Development Board
Espressif Systems ESP32-LyraTD-DSPG Audio Development Board is based on the ESP32 MCU and DBMD5P DSP. This board is an Acoustic Echo Cancelation (AEC) solution supporting voice recognition, near-field, and far-field voice wake-up. WAV, MP3, AAC, FLAC, OPUS, and OGG audio files can be decoded and encoded without quality loss. The board also supports connection to Amazon's AVS (Alexa Voice Service), Google's Dialogflow, and Google's GVA (Google Voice Assistant). This solution can also build custom voice-interactive products using ESP-VA-SDK (Espressif's voice assistant SDK) and ESP-ADF (Espressif Audio Development Framework).
The ESP32-LyraTD-DSPG comprises an ESP32-WROVER-B, a BT/Wi-Fi combo module, and a digital signal processor (DSP). The DSP features a three-microphone array for noise reduction, echo cancellation, beamforming, and wake-word detection. The ESP32-LyraTD-DSPG is integrated with peripheral devices and consists of two development boards. The sub-board mainly provides the microphone array, function keys, and LEDs. The mainboard combines power management, Wi-Fi/audio modules (like DSP and CODEC), and a power amplifier. The two boards can be connected with a flexible printed circuit (FPC).
Features
- Three-microphone array for noise reduction, echo cancellation, and voice recognition
- Far-field voice wake-up supported
- Amazon’s AVS (Alexa Voice Service), Google's Dialogflow, and Google's GVA (Google Voice Assistant) supported
- I2C, I2S, JTAG, and SPI interfaces
Applications
- Smart speakers
- Voice interactive IoT devices
- Voice activated toys
Solution Architecture
Board Layout
Associated Products
Espressif Systems SoC con Bluetooth de modo dual y Wi-Fi de doble núcleo ESP32
Chip altamente integrado que combina Wi-Fi / Bluetooth / BLE y es ideal para aplicaciones IoT y dispositivos móviles y portátiles.
Espressif Systems ESP32-WROVER-B Wireless Module
A powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications.