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Syntiant TinyML Board 识别声音

准备工作

训练模型

简单地,你可以在官方提供的 Syntiant-RC-Go-Stop 项目基础上进行修改,重新训练模型。

你也可以新建一个工程,自己设置标签,并且采集数据,训练自己的语音识别模型。

控制程序

#include "src/syntiant.h"
#include <NDP.h>
#include <NDP_utils.h>
#include <Arduino.h>

/**
 * @brief      Called when a inference matches 1 of the features
 *
 * @param[in]  event          The event
 * @param[in]  confidence     The confidence
 * @param[in]  anomaly_score  The anomaly score
 */
void on_classification_changed(const char *event, float confidence, float anomaly_score) {

    // here you can write application code, e.g. to toggle LEDs based on keywords
    if (strcmp(event, "stop") == 0) {
        // Toggle LED
        digitalWrite(LED_RED, HIGH);
    }

    if (strcmp(event, "go") == 0) {
        // Toggle LED
        digitalWrite(LED_GREEN, HIGH);
    }
}

void setup(void)
{
    syntiant_setup();
}

void loop(void)
{
    syntiant_loop();
}

运行效果

打开串口终端,例如使用 minicom 命令:

$ minicom -D /dev/ttyACM0

这时候对着 Syntiant TinyML Board 喊 “Go”、“Stop” 等词,可以看到串口打印信息:

Predictions:
    go:         1
    stop:       0
    z_openset:  0

Predictions:
    go:         0
    stop:       1
    z_openset:  0

Predictions:                                                                    
    go:         1                                                               
    stop:       0                                                               
    z_openset:  0                                                               

Predictions:                                                                    
    go:         0                                                               
    stop:       0                                                               
    z_openset:  1

参考

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