| 4.3.3 Producing the output sound file
Hindiengine will first get the token name and token type from tokens database. Once the token name is obtained, it is used as a key to retrieve the sound file from the voice database. The following code shows the whole process:
//Fill the key to retrieve content from the database
sprintf(tokenbuffer,"%d",index);
tokenskey.dptr = tokenbuffer;
tokenskey.dsize = strlen(tokenbuffer);
tokenscontent = (*pgdbm_fetch)(dbftokens,tokenskey);
//Get the token and the type from tokenscontent.
token = strtok(tokenscontent.dptr,"|");
ttype1 = strtok(NULL,"|");
ttype = atoi(ttype1);
//This code finds the length of the voice file and copies the header of //the wav file into an variable Header which will later be added to the //output sound file. In wav files 4 bytes after 40 bytes gives the size //of the file.
voicekey.dptr = token;
voicekey.dsize = strlen(token);
voicecontent = (*pgdbm_fetch)(dbfvoice,voicekey);
memcpy(Header,&voicecontent.dptr[0],40);
len = (voicecontent.dsize-44);
//This code copies the remaining wav file (except the first 44 bytes of //the header) into a temporary character array called data and it will //be concatenated to the output sound file later.
memcpy(data,&voicecontent.dptr[44],len);
This completes the description of model 3.
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