Voice Direct is a speaker-dependent speech recognition IC designed for use in cost-sensitive electronic products. It provides high-quality, low-cost speech recognition in any language, recognizing up to 60 words/phrases and supporting phrases up to 3.2 seconds. The chip is highly integrated, reducing the need for external parts, and can be easily integrated into existing products or used for quick design of new products.
The Keely Voice Direct is an Integrated Single-Chip Solution designed for cost-sensitive electronic products. It employs a sophisticated neural network to recognize trained words or phrases with greater than 99% accuracy and can play speech prompts. The device supports both external host control via a 3-wire serial bus and pin-configurable stand-alone operation.
| Operating Temperature Range | -20°C to +70°C |
|---|---|
| Supply Voltage Range | 3.5-5.0V |
| Maximum Recognition Words (External Host) | 60 words/phrases |
| Recognition Accuracy | greater than 99% |
| External Memory Interface Size | 8K byte |
| Speaker Drive Capability | 32-Ohm speaker, approx. 0.15W |
| Input Audio Gain Requirement | approximately 58 dB |
In External Host mode, Voice Direct recognizes up to 60 words or phrases.
Yes, it can operate in a pin-configurable stand-alone mode that requires only the chip and a few passive electronic components.
The device recognizes trained words or phrases with greater than 99% accuracy.