PocketSphinx for Absolute Beginners!

[Tracy Martinez]

Hello. I have downloaded and compiled PocketSphinx on my Windows7
successfully. However, I am having trouble understanding where to go next. I
have a C++ program that I want to be able to add voice control to. I tried
adding in the code at the bottom of the tutorial page http://cmusphinx.source
forge.net/wiki/tutorialpocketsphinx :

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;
}

One of my questions is, when I downloaded the binary version, there is no
"pocketsphinx.h" file, but this code requires that header. So maybe this is
not the right code I should be using. I just want to run the binary from my
c++ program on Windows7. What am I doing wrong?

Thanks,

Tracy

[Nickolay V. Shmyrev]

One of my questions is, when I downloaded the binary version, there is no
"pocketsphinx.h" file, but this code requires that header.

For development (to compile sample application) you need source distribution,
not binary. Binary distribution is needed if you just want to run the
application which requires pocketsphinx. However, it's a good idea to include
pocketsphinx.h into the binary distribution too

So maybe this is not the right code I should be using.

Code is correct, you just need to configure the project settings to add a
folder containing pocketsphinx.h as an additional include file search folder.
It's done in project properties. Pocketsphinx.h is inside source code
distribution.

[Tracy Martinez]

I think I just want to run the binary. But I'm not sure. For my application, I
want to have a speech recognizer, that spits out strings that I can parse into
some logic functions to make certain actions happen. Also, I need to change
the grammar model, just a bit. Can that be done with just the binary?

[Nickolay V. Shmyrev]

Can that be done with just the binary?

No

[Tracy Martinez]

So let me start over. So I am starting a new program with just the "main.cpp"
file above. So how do I add pocketsphinx to my program? Do I add the
executables and library from the pocketsphinx that I compiled, or do I add the
distribution code to my code and compile it together. Sorry for the questions.
I've been working on other IDE's and languages for a while and I'm a little
rusty with Microsoft Visual C++. Thanks.

[Nickolay V. Shmyrev]

So how do I add pocketsphinx to my program? Do I add the executables and
library from the pocketsphinx that I compiled, or do I add the distribution
code to my code and compile it together.

You can learn more about development in VS using external libraries from MSDN:

http://msdn.microsoft.com/en-
us/library/ms235636.aspx

[Nickolay V. Shmyrev]

Also

http://msdn.microsoft.com/en-us/library/windows/desktop/ms682589%28v=vs.85%29
.aspx