Speech recognition module is an embedded language recognition module that converts words in human speech into computer-readable form and communicates with the main chip. The speech module is embedded in smart products, enabling human-machine speech interaction.
Speech recognition consists of two stages: training stage and recognition stage. The training stage requires a large amount of speech data collection, and speech parameters are extracted through processing to establish a speech reference library. The recognition stage compares the output language parameters with the reference models in the reference library for similarity, and extracts the speech with the highest similarity as the recognition result output, thus achieving the goal of speech recognition.
There are mainly two ways to implement speech recognition modules: one is to use speech development kits in embedded software, and the other is to use peripheral extension speech chips. The first method has a longer development cycle and is more complex to handle, while the second method is relatively simple to operate, easy to set up, and has a shorter development cycle. Typical speech recognition modules include: controller templates, speech recognition modules, speakers, microphones, and playback modules.
Can be embedded in toys to achieve intelligent voice control. Quick remote control. Using microphone array, expansion chip, voice recognition engine to achieve human-computer interaction.
Custom wake-up words/command words
No need to train the model, supports Chinese and English.
Jinou low-power Bluetooth voice recognition module uses Nordic's low-power Bluetooth solution, with voice recognition using the CI110x solution. It can be used in scenarios that require voice control, and the current program implements light control.
Bluetooth low power voice recognition module for Jinou realizes remote low power Bluetooth devices to configure module parameters, such as setting voice prompt volume, playing voice prompt numbers, and querying version numbers. After the module is powered on, it enters a non-wake-up state and only recognizes the wake-up word "smart butler". After recognizing "smart butler", it enters the wake-up state and recognizes all common command words. When there is a voice recognition result, it performs the corresponding operation. If no command word is recognized for 15 seconds, it automatically enters the non-wake-up state.
As a slave Bluetooth device, the module can be discovered and connected by the remote Bluetooth device as the master device, and perform parameter configuration.
| Product name | Bluetooth Speech Recognition Module | |
|---|---|---|
| Bluetooth standard | Bluetooth V5.0 standard | |
| Frequency range | ISM 2.402 ~ 2.480GHz | |
| Antenna | Build-in ceramics antenna | |
| Effective Distance | 30m | |
| Bluetooth Protocol | LL、SMP、L2CAP、ATT、GAP、GATT | |
| Power | Quiet environment, non-wake-up state | 24mA |
| Quiet environment, wake-up state | 35mA | |
| Noisy environment, non-wake-up state | 35mA | |
| Noisy environment, wake-up state | 50mA | |
