我使用谷歌语音 api 制作了语音训练机, 因为日本人很难区分 “l” 和 “r” 发音。

概述

如果您通过对 “右” 或 “光” 说话来与连接到 raspberry pi 的 usb 麦克风对话并正确识别它, 则伺服马达在 “右” 时指向右侧, 如果是 “光”, 则 led 指示灯。

部分

- - 迈克使用相机在星期三
    
    　
  - 树莓派 3
    
    　
  - 微电脑 arduino uno
    
    　
  - neopixelpole–12连续的全彩连续 led
    
    　
  - 伺服马达 sg90

拉斯皮设置

安装语音处理库 sox。

$ sudo apt-get install alsa-utils sox libsox-fmt-all

1	$ sudo apt-get install alsa-utils sox libsox-fmt-all

python 程序

录制时, 请点亮红色指示灯。当它识别 “正确” 和 “光” 时, 它就会向 arduino (gpio) 发送一个信号。

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import requests
import json
import os
import commands
import time
import RPi.GPIO as GPIO
GOOGLE_APIKEY = 'Google Speech API key'
LISTEN_SECONDS = 3 #3 seconds recording
VOICE_IN_PATH = '/home/pi/tmp.flac'
#GPIO settings
GPIO.setmode(GPIO.BCM)
GPIO.setup(2, GPIO.OUT)
GPIO.setup(3, GPIO.OUT)
GPIO.setup(4, GPIO.OUT)
GPIO.output(2, 0)
GPIO.output(3, 0)
GPIO.output(4, 0)
#Audio input (voice -> sound data) 
def listen(seconds):
    print 'lestening...'
    cmdline = 'AUDIODEV=hw:1 rec -c 1 -r 17000 ' + VOICE_IN_PATH + \
        ' trim 0 ' + str(seconds)
    os.system(cmdline)
    return os.path.getsize(VOICE_IN_PATH)
#Voice recognition  (sound data -> text)
def recognize():
    print('recognizing...')  
    f = open(VOICE_IN_PATH, 'rb')
    voice = f.read()
    f.close()
    #English lang=en-US
    url = 'https://www.google.com/speech-api/v2/recognize?xjerr=1&client=chromium&'\
        'lang=en-US&maxresults=10&pfilter=0&xjerr=1&key=' + GOOGLE_APIKEY
    hds = {'Content-type': 'audio/x-flac; rate=17000'}
    try:  
        reply = requests.post(url, data=voice, headers=hds).text
    except IOError: 
        return '#CONN_ERR'
    except:
        return '#ERROR'
    objs = reply.split(os.linesep)
    for obj in objs:
        if not obj:
            continue
        alternatives = json.loads(obj)['result']
        if len(alternatives) == 0:
            continue
        return alternatives[0]['alternative'][0]['transcript']
    return ""
def current_milli_time():
    return int(round(time.time() * 1000))
if __name__ == '__main__':
    #first time record will be failed. 
    listen(1)
    no_word = 0
    wifi_err = 0
try:
    while True:
        #Audio input
        t0 = current_milli_time()
        GPIO.output(2, 1)  #Rec LED on
        size = listen(LISTEN_SECONDS)
        GPIO.output(2, 0)  #Rec LED off
        t = current_milli_time() - t0
        if (t < 2000):
            print 'USB microphone not available'
            time.sleep(10)
            continue
        print 'listened:' + str(t) + 'ms'
        print 'voice data size=' + str(size)  
        #Voice recognition
        t0 = current_milli_time()
        message = recognize().encode('utf-8')
        print 'recognized:' + str(current_milli_time() - t0) + 'ms'
        if (message == '#CONN_ERR'):
            print 'internet not available'  
            time.sleep(10)
            continue
        elif (message == '#ERROR'):
            print 'voice recognize failed' 
            time.sleep(10)
            continue
        print 'Result: ' + message
        #Discrimination Discrimination between "right" and "light" 
        if 'right' in message:
            print 'right'
            GPIO.output(3, 1)  #Servo turns the right
            GPIO.output(4, 0)  #Neopixel LED off
            time.sleep(3)
        elif 'light' in message:
            print 'light'
            GPIO.output(3, 0)  #Servo turns to the　orignal
            GPIO.output(4, 1)  #Neopixel LED on
            time.sleep(3)
        else:
            print 'non'
except KeyboardInterrupt:
    GPIO.cleanup()
    pass

100

101

#!/usr/bin/env python

# -*- coding: utf-8 -*-

import requests

import json

import os

import commands

import time

import RPi.GPIO as GPIO

GOOGLE_APIKEY = 'Google Speech API key'

LISTEN_SECONDS = 3 #3 seconds recording

VOICE_IN_PATH = '/home/pi/tmp.flac'

#GPIO settings

GPIO.setmode(GPIO.BCM)

GPIO.setup(2, GPIO.OUT)

GPIO.setup(3, GPIO.OUT)

GPIO.setup(4, GPIO.OUT)

GPIO.output(2, 0)

GPIO.output(3, 0)

GPIO.output(4, 0)

#Audio input (voice -> sound data)

def listen(seconds):

print 'lestening...'

cmdline = 'AUDIODEV=hw:1 rec -c 1 -r 17000 ' + VOICE_IN_PATH + \

' trim 0 ' + str(seconds)

os.system(cmdline)

return os.path.getsize(VOICE_IN_PATH)

#Voice recognition (sound data -> text)

def recognize():

print('recognizing...')

f = open(VOICE_IN_PATH, 'rb')

voice = f.read()

f.close()

#English lang=en-US

url = 'https://www.google.com/speech-api/v2/recognize?xjerr=1&client=chromium&'\

'lang=en-US&maxresults=10&pfilter=0&xjerr=1&key=' + GOOGLE_APIKEY

hds = {'Content-type': 'audio/x-flac; rate=17000'}

try:

reply = requests.post(url, data=voice, headers=hds).text

except IOError:

return '#CONN_ERR'

except:

return '#ERROR'

objs = reply.split(os.linesep)

for obj in objs:

if not obj:

continue

alternatives = json.loads(obj)['result']

if len(alternatives) == 0:

continue

return alternatives[0]['alternative'][0]['transcript']

return ""

def current_milli_time():

return int(round(time.time() * 1000))

if __name__ == '__main__':

#first time record will be failed.

listen(1)

no_word = 0

wifi_err = 0

try:

while True:

#Audio input

t0 = current_milli_time()

GPIO.output(2, 1) #Rec LED on

size = listen(LISTEN_SECONDS)

GPIO.output(2, 0) #Rec LED off

t = current_milli_time() - t0

if (t < 2000):

print 'USB microphone not available'

time.sleep(10)

continue

print 'listened:' + str(t) + 'ms'

print 'voice data size=' + str(size)

#Voice recognition

t0 = current_milli_time()

message = recognize().encode('utf-8')

print 'recognized:' + str(current_milli_time() - t0) + 'ms'

if (message == '#CONN_ERR'):

print 'internet not available'

time.sleep(10)

continue

elif (message == '#ERROR'):

print 'voice recognize failed'

time.sleep(10)

continue

print 'Result: ' + message

#Discrimination Discrimination between "right" and "light"

if 'right' in message:

print 'right'

GPIO.output(3, 1) #Servo turns the right

GPIO.output(4, 0) #Neopixel LED off

time.sleep(3)

elif 'light' in message:

print 'light'

GPIO.output(3, 0) #Servo turns to the　orignal

GPIO.output(4, 1) #Neopixel LED on

time.sleep(3)

else:

print 'non'

except KeyboardInterrupt:

GPIO.cleanup()

pass

arduino ide 程序

新像素的库在下面。
　https://github.com/adafruit/Adafruit_NeoPixel

代码接收来自树莓派的信号, 并控制伺服和新像素环。

#include <Servo.h> 
#include <Adafruit_NeoPixel.h>
int GPIO3 = 3; 
int GPIO4 = 4; 
int servo, LED; 
Servo myservo; 
Adafruit_NeoPixel strip = Adafruit_NeoPixel(12, 6, NEO_GRB + NEO_KHZ800); 
void setup() { 
 Serial.begin(9600); 
 // make the pushbutton's pin an input: 
 pinMode(GPIO3, INPUT); 
 pinMode(GPIO4, INPUT); 
 myservo.attach(9); 
 myservo.write(0); 
 myservo.detach(); 
 strip.begin(); 
 strip.show(); // Initialize all pixels to 'off' 
} 
void loop() { 
 //Read GPIO 
 servo = digitalRead(GPIO3); 
 LED = digitalRead(GPIO4); 
 Serial.print(servo); Serial.print("\t"); 
 Serial.println(LED); 
 //Servo 
 myservo.attach(9); 
 delay(100); 
 if(servo == 1){ 
   myservo.write(0); 
 }else{ 
   myservo.write(90); 
 } 
 myservo.detach(); 
 delay(100); 
 //LED 
 int bright = 20; 
 if(LED == 1){ 
   for(uint16_t i=0; i<strip.numPixels(); i++) { 
     strip.setPixelColor(i, strip.Color(bright, bright, bright)); 
   } 
   strip.show(); 
 }else{ 
   strip.clear(); 
   strip.show(); 
 }

#include <Servo.h>

#include <Adafruit_NeoPixel.h>

int GPIO3 = 3;

int GPIO4 = 4;

int servo, LED;

Servo myservo;

Adafruit_NeoPixel strip = Adafruit_NeoPixel(12, 6, NEO_GRB + NEO_KHZ800);

void setup() {

Serial.begin(9600);

// make the pushbutton's pin an input:

pinMode(GPIO3, INPUT);

pinMode(GPIO4, INPUT);

myservo.attach(9);

myservo.write(0);

myservo.detach();

strip.begin();

strip.show(); // Initialize all pixels to 'off'

}

void loop() {

//Read GPIO

servo = digitalRead(GPIO3);

LED = digitalRead(GPIO4);

Serial.print(servo); Serial.print("\t");

Serial.println(LED);

//Servo

myservo.attach(9);

delay(100);

if(servo == 1){

myservo.write(0);

}else{

myservo.write(90);

}

myservo.detach();

delay(100);

//LED

int bright = 20;

if(LED == 1){

for(uint16_t i=0; i<strip.numPixels(); i++) {

strip.setPixelColor(i, strip.Color(bright, bright, bright));

}

strip.show();

}else{

strip.clear();

strip.show();

}

操作

l r 发音校正吉布斯爸爸母鸡发音训练机 #right #light #raspberrypi #arduino #neopixel

家庭共用的垃圾 (@homemadegarbage)-2017年4星期一7上午 55 pdt

l r 发音校正吉布斯妈妈母鸡发音训练机 #right #light #raspberrypi #arduino #neopixel

家庭共用的垃圾 (@homemadegarbage)-2017年4月4日星期一晚上8:08

l r 发音更正吉布斯长子 #right #light #arduino 的发音训练机 #neopixel

家庭共用的垃圾 (@homemadegarbage)-2017年4月4日星期一晚上8:30

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概述

部分

拉斯皮设置

python 程序

arduino ide 程序

操作

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