learn4sphinx

#include <pocketsphinx.h>

intmain(int argc, char *argv[])

 {

 ps_decoder_t *ps; 

 cmd_ln_t *config; 

FILE *fh;

char const *hyp, *uttid;

int16 buf[512];

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;

}

 

/*note:USE the Makefile that i have writen before to compile  goforward.raw in the path "pocketsphinx/test/data" */

Goto the site:http://www.speech.cs.cmu.edu/SLM/toolkit_documentation.html for how to use the toolkit

http://www.speech.cs.cmu.edu/SLM/toolkit.html to download the toolkit

After uncompress the tar-file :

editing src/Makefile directly, so that the line

#BYTESWAP_FLAG = -DSLM_SWAP_BYTESis changed to

BYTESWAP_FLAG = -DSLM_SWAP_BYTES

 

THEN

make install 

sudo cp CMU-Cam_Toolkit_v2/bin/*    /usr/bin

then you can run tools below

 

text2wfreq

wfreq2vocab

text2wngram

text2idngram

ngram2mgram

wngram2idngram

idngram2stats

mergeidngram

idngram2lm

binlm2arpa

evallm

interpolate

 

 The simplest way to build a language model is to use the on-line web tool at http://www.speech.cs.cmu.edu/tools/lmtool.html. Simply click on the “Browse…” button, select the corpus.txt file you created, then click “COMPILE KNOWLEDGE BASE”.

 

The cprpus.txt is bellow

******NOT IN IT JUST A  FLAG*********

open browser

new e-mail

forward

backward

next window

last window

open music player

**************END FLAG**************

You should see a page with some status messages, followed by a page entitled “Sphinx knowledge base”. This page will contain links entitled “Dictionary” and “Language Model”. Download these files and make a note of their names (they should consist of a 4-digit number followed by the extensions .dic and .lm). You can now test your newly created language model with PocketSphinx.

 

THE LAST SETP:(we assume after uncompress there is a .dic and .lm files called 8521.lm and 8521.dic)

 

pocketsphinx_continuous -lm 8521.lm -dict 8521.dic

 

Then SHOUT AT THE MICPHONE :open music player ,the tty will output :open music player