Knowles' reference design is designed specifically for iot applications and is based on IA611 SmartMic and Trillbit's TrillConnect SDK
Knowles' IA611 SmartMic always-on audio processor comes with an integrated TrillConnect SDK from Trillbit that uses vibrato to detect wakeup and decode incoming sound data streams, Encoded using Trillbit's Data-over-Sound algorithm, with a sampling rate of 48 kHz (10 ms frame interval), using high-performance acoustic SiSonic MEMS microphone technology, packaged with a miniature top port.
IA611 provides flexibility by supporting the most relevant audio and data interfaces. Its integrated programmable DSP with 248 KB of RAM, of which 8 KB is available for customer and third party algorithms, enables unlimited creativity. The solution pushes system performance to ultra-low power consumption with a custom kernel design and speeds time to market with a highly integrated hardware, software, and firmware combination.
Ia611-rdi-01 Xplained Pro Dev kit is a reference design for iot ained Pro, based on IA611 SmartMic and Trillbit's TrillConnect SDK. It supports ultra-low power acoustic vibrato detection, encoding of acoustic data streams, and forwarding of payload data (network credentials) to an embedded processor for network debugging. TrillConnect enables Trillbit's secure one-click connectivity for IoT devices. To quickly prototype SmartMic into iot applications, AI611 has integrated with Microchip SAM D21 Xplained pro MCU board.
Features
● IA611 audio processor with TrillConnect SDK
- High precision vibrato wake-up, TrillConnect data encoding and processing
- Minimum delay when using SPI burst two second audio buffer
- Ultra-low Power always-on Audio Activity Detector (AAD)
- An interrupt signal is sent to the host processor when a trill is detected
● IA611 Development suite
- IA611 SmartMic with 40 MHz, 32-bit floating point DSP
- 8 kB of memory is available for user applications
- SPK0641HT4H-1 (Ramis) DMIC is used as a second microphone with two-channel voice input capability
Applications
● The Internet of Things and all types of connected home devices
- Doorbell
- Camera
- Intelligent speaker
- Smart TV
- Small household appliances and electricity
- Electric bulb
- Temperature controller
- Hvac system
- Water sensor
- sensor
- Toy
- Tool
- Access control system
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