How can i easily compile Pocketpshinx -0.7?

[Karro7]

Hi everybody, my name is atlante7. I am a beginner in computing!

I have to compile the program pocketsphinx for an application of speech
recognition through a robot which can understand simply orders such as "go,
right, left, stop".

The purpose of my studies is to eloborate this program so as the robot
recognize these words.

I have been studying C for one month or a little bit more. So i am a newbie!

My teacher told me to search a program which is Free and computed with Unix.

Therefore i chose Sphinx, especially pocketsphinx.

Anyway, i download pocketsphinx-0.7 and sphinxbase on the site web: http://ht
tp://cmusphinx.sourceforge.net/wiki/download/

and install make install properly.

For example, i can run pocketsphinx_continuous, tidigits with no problem!

Well, you have actually noticed the fact that my english is not as good as i
always wanted! I am a french guy!

I have Ubuntu 10.04, and use GCC to compile and notepad or Emacs to write the
code.

This is my problem:

I copy the code just on this page:
http://cmusphinx.sourceforge.net/wiki/tuturialpocketsphinx

Code source:

include <pocketsphinx.h></pocketsphinx.h>

int
main(int argc, char argv)
{
ps_decoder_t ps;
cmd_ln_t config;
FILE fh;
char const hyp, uttid;
int16 buf;
int rv;
int32 score;

config = cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-lm", MODELDIR "/lm/en/turtle.DMP",
"-dict", MODELDIR "/lm/en/turtle.dic",
NULL);
if (config == NULL)
return 1;
ps = ps_init(config);
if (ps == NULL)
return 1;

fh = fopen("goforward.raw", "rb");
if (fh == NULL) {
perror("Failed to open goforward.raw");
return 1;
}

rv = ps_decode_raw(ps, fh, "goforward", -1);
if (rv < 0)
return 1;
hyp = ps_get_hyp(ps, &score, &uttid);
if (hyp == NULL)
return 1;
printf("Recognized: %s\n", hyp);

fseek(fh, 0, SEEK_SET);
rv = ps_start_utt(ps, "goforward");
if (rv < 0)
return 1;
while (!feof(fh)) {
size_t nsamp;
nsamp = fread(buf, 2, 512, fh);
rv = ps_process_raw(ps, buf, nsamp, FALSE, FALSE);
}
rv = ps_end_utt(ps);
if (rv < 0)
return 1;
hyp = ps_get_hyp(ps, &score, &uttid);
if (hyp == NULL)
return 1;
printf("Recognized: %s\n", hyp);

fclose(fh);
ps_free(ps);
return 0;
}

But i really don't know how i can fix it!

How can i compile this code so as to add just these things:

-a dictionnary with four words in english ("go, stop, right, left").
-> I already create a jsgf document or a .dic document about it.
-a few sounds of my voice in order to say "go,stop, right left".
-> i recorded it with the application on LINUX (the simple one) and saved as .wav

And that's all.

I thank you for yours answers.

Goodbye.

[Nickolay V. Shmyrev]

How can i compile this code so as to add just these things

Do you have troubles to compile this code to a binary executable or to modify
it to include the grammar you have.

By compilation people usually mean the process that converts text file to a
binary executable code. This is done by means of special tool - compile. For
example on Linux there is gcc which compiles text

If you want to modify the code, it's another story.

[Karro7]

Hi, many thanks for reply so fast!

I want to modify the code so as to include my settings.

And i know that some people who are computing 'better' than me told me just
that it will be so hard for me...

Anyway, is there a simply way to modify just a little this code so as to fix
my settings(dictionnary 4 words, and recording 4 words)?

[Nickolay V. Shmyrev]

To modify it open this file with a text editor. Go to the line

config = cmd_ln_init(NULL, ps_args(), TRUE, "-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k", "-lm", MODELDIR "/lm/en/turtle.DMP", "-dict", MODELDIR "/lm/en/turtle.dic", NULL);

Modify it according to your needs

config = cmd_ln_init(NULL, ps_args(), 
TRUE, "-hmm", 
MODELDIR "/hmm/en_US/hub4wsj_sc_8k", 
"-jsgf", "<path_to_your_grammar_file>", 
"-dict", "<path_to_your_dictionary_file>" NULL);

Compile it and run

[Karro7]

Okay.

For example, i do that:

config = cmd_ln_init(NULL, ps_args(), TRUE, "-hmm", MODELDIR
"/hmm/en_US/hub4wsj_sc_8k", "-jsgf", "<path_to_your_grammar_file>", "-dict",
"<path_to_your_dictionary_file>" NULL); </path_to_your_dictionary_file></path_to_your_grammar_file>

but to indicate my path my grammar is a jsgf in Documents, so i note:
usr/Documents/grammar1.jsgf?
and my dictionnary has to be in the same folder than for example turtle.dic?

So to conclude the path will be:

config = cmd_ln_init(NULL, ps_args(), TRUE, "-hmm", MODELDIR
"/hmm/en_US/hub4wsj_sc_8k", "-jsgf", "<usr/Documents/grammar1.jsgf>",
"-dict", "<usr/Documents/Sphinx/pocketsphinx/model/lm/en/5352.dic>" NULL);

Is that correct?

[Nickolay V. Shmyrev]

Correct is

config = cmd_ln_init(NULL, ps_args(), TRUE, "-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k", "-jsgf", "usr/Documents/grammar1.jsgf", "-dict", "usr/Documents/Sphinx/pocketsphinx/model/lm/en/5352.dic" NULL);

You just specify a file name. File name is a set of directories separated by /
and a name of the file. Filename is enclosed in double quotes as any string in
C

[Karro7]

My line:

onfig = cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-jsgf","usr/Documents/Sphinx/pocketsphinx/model/en/grammar1.jsgf",
"-dict","usr/Documents/Sphinx/pocketsphinx/model/lm/en/5353.dic" NULL);

Good.

I do what you told me.

And the compiler shows me this page:

http://www.imagup.com/data/1122892004.html

How can i fix these ones?

[Karro7]

I just forgot this thing:

I rectify the line:

onfig = cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-jsgf","usr/Documents/Sphinx/pocketsphinx/model/lm/en/grammar1.jsgf",
"-dict","usr/Documents/Sphinx/pocketsphinx/model/lm/en/5353.dic" NULL);

(miss lm/en at line grammar1)

And i got the same errors!

[Nickolay V. Shmyrev]

How can i fix these ones?

Find proper command line for compiler here:

http://cmusphinx.sourceforge.net/wiki/tuturialpocketsphinx

[Karro7]

I read for weeks this tutorial without understand how i can modify the code!

I need help sincerely. I know i am a newbie!

I tried to put some variables such as:

int rv = 0;
etc etc
but no works.

I am sorry, i could understand alone this code!

[Karro7]

I mean i could NOT understand this code alone.

Any suggestions?

Or Walktrhought? So as to guide me?

[Karro7]

Well i started to define these variables such as:

int = 0;
but some %s need "char".

Ok but how could i make it?

int ps_decoder_t ps = 0;
int FILE fh = 0;
int rv = 0;
int ps = 0;
int fh = 0;
int cmd_ln_t = 0;
int config = 0;
int int16 = 0;
int int32 = 0;
int NULL = 0;
int TRUE = 1;
int MODELDIR= 0;
int SEEK_SET = 0;
int score = 0;
int size_t = 0;
int nsamp = 0;
int buf = 0;
int FALSE = 0;

Does these variables takes int or char or anyelse? I don't know seriously

[Nickolay V. Shmyrev]

Sorry, it seems you need to take some course on development using C. I
recommend you to read this book:

http://cm.bell-labs.com/cm/cs/cbook/

It's certainly not an appropriate place to discuss such issues here, this is a
forum about CMUSphinx, not about C basics.

[creative64]

Or go through this quick on-line course. It will give you a jumpstart in 24
hrs. It helped me.

http://aelinik.free.fr/c/index.html

[Karro7]

Right. But i haven't got a lot of time! (few days)

I need a part of this code modified than can help me to end up.

I mean, just a few lines to define the variables and some explanations. And i
can make it myself. Otherwise, i am totally lost.

Does anyone got a piece of the code modifided? nshmyrev?

Just an exemple which could inspire me!

Thanks a lot

[Nickolay V. Shmyrev]

You shouldn't modify the file except the changes I told you. You shouldn't add
those senseless line. The variables are defined in pocketsphinx library, not
in your code.

To compile the source properly you need to use proper command line. Instead of

gcc code.c -ocode

You need to use

gcc -o code code.c  -DMODELDIR=\"`pkg-config --variable=modeldir pocketsphinx`\"  `pkg-config --cflags --libs pocketsphinx sphinxbase`

[Nickolay V. Shmyrev]

Right. But i haven't got a lot of time! (few days)

We also don't have a lot of time to help you here.

[Karro7]

Ok!

All in all, if i understand clearly, i will do what you told:

change first line with cmd_ln_init = config ...

and do not make any changes and just compile with the last use that you told:

gcc -o code code.c -DMODELDIR=\"pkg-config --variable=modeldir pocketsphinx\" pkg-config --cflags --libs pocketsphinx sphinxbase

is that correct?

[Karro7]

ok it gives an error: package sphinxbase was not found in the pkg config
search path
Perhaps you should add the directory containing sphinxbase.pc to the
PKG_CONFIG_PATH environment variable.

How can i fix it please?

Do my grammar is also correct?

grammar1.jsgf:

JSGF V1.0;

grammar robot;

public <robot> = go | stop | right | left </robot>

[Karro7]

<"name of my code"> so Code1.c can't find a file such as Code1.c

I make the following configurations:

export LD_LIBRARY_PATH=/usr/local/lib
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

ok.

and then here the filename (Code1.c)

and my line:

gcc -o Code1 Code1.c -DMODELDIR=\"pkg-config --variable=modeldir pocketsphinx\" pkg-config --cflags --libs pocketsphinx sphinxbase

error:

nfig = cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-jsgf","usr/Documents/Sphinx/pocketsphinx/model/lm/en/grammar1.jsgf",
"-dict","usr/Documents/Sphinx/pocketsphinx/model/lm/en/5353.dic" NULL);

line C17: "-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",

error: I (first use in this function) Where is the I?

error: 'usr' first use in this function Why? Does it effects withe the " ?

error: 'local' first use in this function.

error: 'include' first use in this function.

Well there are no include no local! and could it be?

I think it's pretty over!

Can you help me to the finish line please?

Many thanks!

[Karro7]

I tried other things.

I saw that maybe my folders are not good indicated:

So i do this, first to initiate:

export LD_LIBRARY_PATH=/home/stagiaire/Documents/Sphinx/pocketsphinx/src/libpo
cketsphinx
export PKG_CONFIG_PATH=/home/stagiaire/Documents/Sphinx/sphinxbase-0.7/src/lib
sphinxbase/pkgconfig

No messages after .

So good.

And then i take my code and modify these lines into:

nfig = cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR
"home/stagiaire/Documents/Sphinx/pocketsphinx/model/hmm/en_US/hub4wsj_sc_8k",
"-jsgf", MODELDIR
"home/stagiaire/Documents/Sphinx/pocketsphinx/model/lm/en/grammar1.jsgf",
"-dict", MODELDIR
"home/stagiaire/Documents/Sphinx/pocketsphinx/model/lm/en/5353.dic" NULL);

just modified the directory.

But i got the same errors about 'I' first time in this function (If i
modificate MODELDIR to MODELdir = Just an error = Could not found MODELdir.

So is my line is correct? Or MODELDIR must be with ' or " ? or ()? or
declarate at the beginning?

The goal is as my reach!

Thank you for your answers.

[Karro7]

Well i can't understand"the finish line"!

I do this:

export LD_LIBRARY_PATH=/usr/local/lib export
PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

and receives:

-I/usr/local/include -I/usr/local/include/sphinxbase -I/usr/local/include/pocketsphinx
-L/usr/local/lib -lpocketsphinx -lsphinxbase -lsphinxad

Good one?

And then my code:

config = cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "<home stagiaire="" documents="" sphinx="" pocketsphinx="" model="" hmm="" en_u="" s="" hub4wsj_sc_8k="">",
"-jsgf",
"<home stagiaire="" documents="" sphinx="" pocketsphinx="" model="" lm="" en="" grammar1.jsgf="">",
"-dict", "<home stagiaire="" documents="" sphinx="" pocketsphinx="" model="" lm="" en="" 5353.dic="">"
NULL); </home></home></home>

and the error:

'I' undeclared (first use in this function) ("It's the I of MODELDIR!")

'usr' undeclared (first use in this function)

'local' undeclared (first use in this function)

'include' undeclared (first use in this function)

How can i fix it??

[Karro7]

When i define int usr =0;
int local = 0;
int include = 0;
int I = 0;

The compilator found me an error at line C.23

config = cmd_ln_init(NULL, ps_args(), TRUE,"-hmm", MODELDIR
"/hmm/en_US/hub4wsj_sc_8k","-jsgf",
"home/stagiaire/Documents/Sphinx/pocketsphinx/model/lm/en

error expected ')' before string constant.

How can i repair it?

[Karro7]

Well after an hour i saw i made a mistake with -hmm which needs to be before
MODELDIR.

But i write this part of code:

config = cmd_ln_init(NULL, ps_args(), TRUE, "-hmm", MODELDIR
"/hmm/en_US/hub4wsj_sc_8k",
"-jsgf",
"/home/stagiaire/Documents/Sphinx/pocketsphinx/model/lm/en/grammar1.jsgf",
"-dict", "/home/stagiaire/Documents/Sphinx/pocketsphinx/model/lm/en/5353.dic"
NULL);

And i got the same error at this line: expect ')' before string constant.

config = cmd_ln_init(NULL, ps_args(), TRUE, "-hmm", MODELDIR
"/hmm/en_US/hub4wsj_sc_8k",

?

[Karro7]

Hello i finally get it to compile the code.

But when i ran gcc -c CodeCompSphinx.c -o CodeCompSphinx - DMODELDIR... libs
pocketsphinx sphinxbase.

And do:

./CodeCompSphinx

It declares: Permission denied (bash).

Why?

I have to finish it for today!

Thanks for reply!