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Speech recognition example

The example demonstrates the speech recognition function on ESP32-LyraT and ESP32-LyraTD-MSC board. It contains nine keywords.

WakeUp words

# word English Meaning Pronunciation
1 嗨，乐鑫 Hi, Espressif Hāi, lè xīn

Key words

# word English Meaning Pronunciation
0 打开空调 turn on air-condition dā kaī kōng tiáo
1 关闭空调 turn off air-condition guān bì kōng tiáo
2 增大风速 increase in speed zēng dà fēng sù
3 减小风速 decrease in speed jiǎn xiǎo fēng sù
4 升高一度 increase in temperature shēng gāo yī dù
5 降低一度 decrease in temperature jiàng dī yī dù
6 制热模式 hot mode zhì rè moó shì
7 制冷模式 slow mode zhì lěng mó shì
8 送风模式 blower mode jie néng mó shì
9 节能模式 save power mode jíe néng mó shì
10 关闭节能模式 turn off save power mode guān bì jíe néng mó shì
11 除湿模式 dampness mode chú shi mó shi
12 关闭除湿模式 turn off dampness mode guān bì chú shī mó shì
13 打开蓝牙 turn on bt dā kaī lán yá
14 关闭蓝牙 turn off bt guān bì lán yá
15 播放歌曲 turn on bō fàng gē qǚ
16 暂停播放 turn off zàn tíng bō fàng
17 定时一小时 timer one hour dìng shí yī xiǎo shí
18 打开电灯 turn on lignt dā kaī diàn dēng
19 关闭点灯 turn off lignt guān bì diàn dēng

Note

If your Chinese pronunciation is not good, you can try the "Alexa" keyword. You need to modify some configurations to use them, see "Usage" for details.

Compatibility

This example is will run on boards marked with green checkbox. Please remember to select the board in menuconfig as discussed is section Usage below.

Board Name Getting Started Chip Compatible
ESP32-LyraT alt text ESP32 alt text
ESP32-LyraTD-MSC alt text ESP32 alt text
ESP32-LyraT-Mini alt text ESP32 alt text
ESP32-Korvo-DU1906 alt text ESP32 alt text
ESP32-S2-Kaluga-1 Kit alt text ESP32-S2 alt text

Usage

Prepare the audio board:

  • Insert a microSD card loaded with MP3 files 'dingdong.mp3' and 'haode.mp3' into board's slot.

Configure the example:

  • Select compatible audio board in menuconfig > Audio HAL.

  • If you want to use "nihaoxiaozhi" as a wakeup word, open menuconfig, go to Speech Recognition Configuration and select:

    • Wake word engine > WakeNet 5 (quantized) or > WakeNet 6 (quantized)
    • Wake word name > nihaoxiaozhi

  • If you want to use "nihaoxiaozhi" as a wakeup word, open menuconfig, go to Speech Recognition Configuration and select:

    • Wake word engine > WakeNet 5 (quantized)
    • Wake word name > hi jeson Load and run the example:

  • Say the keywords to the board and you should see them printed out in the monitor.