檢視Application - Speech Recognition的原始碼

[[File:RPi3 TR10.jpg|450px|RPi3 + TR10]]
[[File:Rpi_speech_gpio.gif|450px|RPi3 control GPIO by speech recogination]]
== Open source ==
<pre>
apt-get install rpi-update
apt-get install git-core
rpi-update

-> Connect your USB microphone (or camera+mic) and
-> reboot the RPi at this point

vi /etc/modprobe.d/alsa-base.conf 

# change as follows:
# Comment this line
# options snd-usb-audio index=-2
# and add the following:
options snd-usb-audio index=0

-> close the file and reload alsa:

alsa force-reload

wget http://sourceforge.net/projects/cmusphinx/files/sphinxbase/\
0.8/sphinxbase-0.8.tar.gz/download
mv download sphinxbase-0.8.tar.gz
wget http://sourceforge.net/projects/cmusphinx/files/\
pocketsphinx/0.8/pocketsphinx-0.8.tar.gz/download
mv download pocketsphinx-0.8.tar.gz
tar -xzvf sphinxbase-0.8.tar.gz
tar -xzvf pocketsphinx-0.8.tar.gz

apt-get install bison
apt-get install libasound2-dev

cd sphinxbase-0.8
./configure --enable-fixed
make
make install

cd ../pocketsphinx-0.8/
./configure
make
sudo make install
</pre>

== GPIO MAP ==
pi@raspberrypi:~/projects/rpi/speech $ gpio readall
 +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
 |   2 |   8 |   SDA.1 |   IN | 1 |  3 || 4  |   |      | 5V      |     |     |
 |   3 |   9 |   SCL.1 |   IN | 1 |  5 || 6  |   |      | 0v      |     |     |
 |   4 |   7 | GPIO. 7 |   IN | 1 |  7 || 8  | 0 | IN   | TxD     | 15  | 14  |
 |     |     |      0v |      |   |  9 || 10 | 1 | IN   | RxD     | 16  | 15  |
 |  17 |   0 | GPIO. 0 |   IN | 0 | 11 || 12 | <span style="color:#FF0000">0</span> | OUT  | GPIO. 1 | 1   | 18  |
 |  27 |   2 | GPIO. 2 |   IN | 0 | 13 || 14 |   |      | 0v      |     |     |
 |  22 |   3 | GPIO. 3 |   IN | 0 | 15 || 16 | <span style="color:#FF0000">0</span> | OUT  | GPIO. 4 | 4   | 23  |
 |     |     |    3.3v |      |   | 17 || 18 | <span style="color:#FF0000">0</span> | OUT  | GPIO. 5 | 5   | 24  |
 |  10 |  12 |    MOSI |   IN | 0 | 19 || 20 |   |      | 0v      |     |     |
 |   9 |  13 |    MISO |   IN | 0 | 21 || 22 | <span style="color:#FF0000">0</span> | OUT  | GPIO. 6 | 6   | 25  |
 |  11 |  14 |    SCLK |   IN | 0 | 23 || 24 | 1 | IN   | CE0     | 10  | 8   |
 |     |     |      0v |      |   | 25 || 26 | 1 | IN   | CE1     | 11  | 7   |
 |   0 |  30 |   SDA.0 |   IN | 1 | 27 || 28 | 1 | IN   | SCL.0   | 31  | 1   |
 |   5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |     |
 |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  | 12  |
 |  13 |  23 | GPIO.23 |   IN | 0 | 33 || 34 |   |      | 0v      |     |     |
 |  19 |  24 | GPIO.24 |   IN | 0 | 35 || 36 | 0 | IN   | GPIO.27 | 27  | 16  |
 |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  | 20  |
 |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  | 21  |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+

== GPIO Adapter (using GPIO 12, 16, 18 and 22)==
<pre>
#include <stdio.h>
#include <string.h>
int main(int argc, char *argv[])
{
	char tmp[125];
	system("gpio mode 1 out");
	system("gpio mode 4 out");
	system("gpio mode 5 out");
	system("gpio mode 6 out");

	while(1)
	{
	scanf("%s",&tmp);
	if(tmp != "\n")
	{	
	if(!strcmp(tmp,"TOMMY"))
		system("gpio write 1 1");
	else
		system("gpio write 1 0");

        if(!strcmp(tmp,"MOLLY"))
                system("gpio write 4 1");
        else
                system("gpio write 4 0");

        if(!strcmp(tmp,"DAISY"))
                system("gpio write 5 1");
        else
                system("gpio write 5 0");

        if(!strcmp(tmp,"ANNIE"))
                system("gpio write 6 1");
        else
                system("gpio write 6 0");

        if(!strcmp(tmp,"OKAY"))
		{
         		system("gpio write 1 1");
			system("gpio write 4 1");
			system("gpio write 5 1");
			system("gpio write 6 1");
		}
	}
	}
	return 0;
}

</pre>

== GPIO MAP (says, OKAY) ==
pi@raspberrypi:~/projects/rpi/speech $ gpio readall
 +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
 |   2 |   8 |   SDA.1 |   IN | 1 |  3 || 4  |   |      | 5V      |     |     |
 |   3 |   9 |   SCL.1 |   IN | 1 |  5 || 6  |   |      | 0v      |     |     |
 |   4 |   7 | GPIO. 7 |   IN | 1 |  7 || 8  | 0 | IN   | TxD     | 15  | 14  |
 |     |     |      0v |      |   |  9 || 10 | <span style="color:#FF0000">1</span> | IN   | RxD     | 16  | 15  |
 |  17 |   0 | GPIO. 0 |   IN | 0 | 11 || 12 | <span style="color:#FF0000">1</span> | OUT  | GPIO. 1 | 1   | 18  |
 |  27 |   2 | GPIO. 2 |   IN | 0 | 13 || 14 |   |      | 0v      |     |     |
 |  22 |   3 | GPIO. 3 |   IN | 0 | 15 || 16 | <span style="color:#FF0000">1</span> | OUT  | GPIO. 4 | 4   | 23  |
 |     |     |    3.3v |      |   | 17 || 18 | <span style="color:#FF0000">1</span> | OUT  | GPIO. 5 | 5   | 24  |
 |  10 |  12 |    MOSI |   IN | 0 | 19 || 20 |   |      | 0v      |     |     |
 |   9 |  13 |    MISO |   IN | 0 | 21 || 22 | 1 | OUT  | GPIO. 6 | 6   | 25  |
 |  11 |  14 |    SCLK |   IN | 0 | 23 || 24 | 1 | IN   | CE0     | 10  | 8   |
 |     |     |      0v |      |   | 25 || 26 | 1 | IN   | CE1     | 11  | 7   |
 |   0 |  30 |   SDA.0 |   IN | 1 | 27 || 28 | 1 | IN   | SCL.0   | 31  | 1   |
 |   5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |     |
 |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  | 12  |
 |  13 |  23 | GPIO.23 |   IN | 0 | 33 || 34 |   |      | 0v      |     |     |
 |  19 |  24 | GPIO.24 |   IN | 0 | 35 || 36 | 0 | IN   | GPIO.27 | 27  | 16  |
 |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  | 20  |
 |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  | 21  |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+

== Shell example ==
* pi@raspberrypi:~/project/rpi/speech $ pocketsphinx_continuous -lm 7610.lm -dict 7610.dic -inmic yes | ./adapter

== Reference ==
* [https://wolfpaulus.com/journal/embedded/raspberrypi2-sr/, Raspberry Pi 2 – Speech Recognition on device]
* [https://pypi.python.org/pypi/SpeechRecognition/3.2.0, SpeechRecognition 3.2.0]
* [http://www.speech.cs.cmu.edu/tools/lmtool-new.html, Sphinx Knowledge Base Tool]

[[Category:Projects]]