[Lann]

Ah, understood. This was quite difficult to figure out for me. I based my project on an older PhoneGap plugin for Openears that was on Github which is doing exactly what caused this problem. I think they are unaware of this limitation.

[Lann]

So, after further investigation I believe that this was related to reusing the same .dmp/.dic file multiple times. I have seen another forum post where the user reccommended alternating dictionary files but this does not resolve the issue.

The only thing resolving it for me is to use a new filename each time. How can I work around this because I’m making a game where this would result in hundreds of files.

To offer a little more potential insight into how this may have worked for the other user, it also seems to work if I alternate between dictionaries but ONLY as long as they never change their contents. Once a word changes then that dictionary becomes corrupt if I attempt to reuse it.

[Lann]

Oh, maybe the issue is that I’m using startListeningWithLanguageModelAtPath every time I change the language model. Shouldn’t I be using changeLanguageModelToFile on successive calls?

[Lann]

My logs show that it takes 4 seconds to execute the following statement on an iPhone 4S:

[self.pocket_sphinx_controller startListeningWithLanguageModelAtPath:self.path_to_dynamic_language_model dictionaryAtPath:self.path_to_dynamic_grammar acousticModelAtPath:[AcousticModel pathToModel:@”AcousticModelEnglish”] languageModelIsJSGF:NO];

Here is how the language model was earlier initialized (if this is relevant):

NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray
withFilesNamed:@”dynamic”
withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil
forAcousticModelAtPath:[AcousticModel pathToModel:@”AcousticModelEnglish”]];

[self.language_model_generator deliverRejectedSpeechInHypotheses:TRUE];

[Lann]

Ok…it seems to only happen in the iOS 6.x simulator. No more simulator for me ever.

[Lann]

Thanks! That worked for me.

[Lann]

Aaaand it works! Thank you so much for your help. The issue was that I forgot to include

#import <OpenEars/AcousticModel.h>

[Lann]

I am still quite stumped at the moment. Maybe you could take a look at the code I am basing all of this on here:

https://github.com/rtelep/phonegap_openears/blob/master/openEarsPlugin.mm

Does the issue have something to do with self.current_language_model being an NSString?

[Lann]

Here is the full error that I’m receiving:

Error while trying to load the pronunciation dictionary: Error Domain=NSCocoaErrorDomain Code=260 “The operation couldn’t be completed. (Cocoa error 260.)” UserInfo=0x83480d0 {NSFilePath=(null)/LanguageModelGeneratorLookupList.text, NSUnderlyingError=0x835c9b0 “The operation couldn’t be completed. No such file or directory”}

[Lann]

The bundle is making it to the product so it’s not that. I am somewhat stumped now. Here are the functions from my plugin which call the updated code

/*
* ++++++++++++++++++++++++++++++++++++++++
* LanguageModelGenerator methods
* ++++++++++++++++++++++++++++++++++++++++
*/
-(void)languageModelGeneratorGenerateLanguageModelFromArray:(NSArray *)arguments withDict:(NSDictionary *)options{

NSString *languageArrayCSV = [arguments objectAtIndex:0];
NSArray *languageArray = [languageArrayCSV componentsSeparatedByString:@”,”];

/*NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray withFilesNamed:@”dynamic”withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil];*/

NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray
withFilesNamed:@”dynamic”
withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil
// Change “AcousticModelEnglish” to “AcousticModelSpanish” to create a Spanish Rejecto model.
forAcousticModelAtPath:[self.current_language_model pathToModel:@”AcousticModelEnglish”]];

NSDictionary *dynamicLanguageGenerationResultsDictionary = nil;

if([error code] != noErr) {
NSLog(@”Dynamic language generator reported error %@”, [error description]);
} else {
dynamicLanguageGenerationResultsDictionary = [error userInfo];

NSString *lmFile = [dynamicLanguageGenerationResultsDictionary objectForKey:@”LMFile”];
NSString *dictionaryFile = [dynamicLanguageGenerationResultsDictionary objectForKey:@”DictionaryFile”];
NSString *lmPath = [dynamicLanguageGenerationResultsDictionary objectForKey:@”LMPath”];
NSString *dictionaryPath = [dynamicLanguageGenerationResultsDictionary objectForKey:@”DictionaryPath”];

NSLog(@”Dynamic language generator completed successfully, you can find your new files %@\n and \n%@\n at the paths \n%@ \nand \n%@”, lmFile,dictionaryFile,lmPath,dictionaryPath);

self.path_to_dynamic_language_model = lmPath;
self.path_to_dynamic_grammar = dictionaryPath;

}
//[languageArray release];
if(dynamicLanguageGenerationResultsDictionary){
NSLog(@”LANGUAGE MODEL PATH: %@”,self.path_to_dynamic_language_model);
NSLog(@”DYNAMIC GRAMMAR PATH: %@”,self.path_to_dynamic_grammar);

switch ([self.started_listening intValue]) {

// Pocketsphinx is listening, switch to new language model
case 1:
NSLog(@”***Switching to new lm.”);
[self.pocket_sphinx_controller changeLanguageModelToFile:self.path_to_dynamic_language_model withDictionary:self.path_to_dynamic_grammar];
break;

// Otherwise, start listening with language model
default:
NSLog(@”***Starting with new lm.”);
//[self.pocket_sphinx_controller startListeningWithLanguageModelAtPath:self.path_to_dynamic_language_model dictionaryAtPath:self.path_to_dynamic_grammar languageModelIsJSGF:NO];
[self.pocket_sphinx_controller startListeningWithLanguageModelAtPath:self.path_to_dynamic_language_model dictionaryAtPath:self.path_to_dynamic_grammar acousticModelAtPath:[self.current_language_model pathToModel:@”AcousticModelEnglish”] languageModelIsJSGF:NO]; // Change “AcousticModelEnglish” to “AcousticModelSpanish” to perform Spanish recognition instead of English.
break;
}

}

}

/*
* ++++++++++++++++++++++++++++++++++++++++
* LanguageModelGenerator methods
* ++++++++++++++++++++++++++++++++++++++++
*/
-(void)languageModelGeneratorGenerateLanguageModelFromArray:(NSArray *)arguments withDict:(NSDictionary *)options{

NSString *languageArrayCSV = [arguments objectAtIndex:0];
NSArray *languageArray = [languageArrayCSV componentsSeparatedByString:@”,”];

/*NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray withFilesNamed:@”dynamic”withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil];*/

NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray
withFilesNamed:@”dynamic”
withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil
// Change “AcousticModelEnglish” to “AcousticModelSpanish” to create a Spanish Rejecto model.
forAcousticModelAtPath:[self.current_language_model pathToModel:@”AcousticModelEnglish”]];

NSDictionary *dynamicLanguageGenerationResultsDictionary = nil;

if([error code] != noErr) {
NSLog(@”Dynamic language generator reported error %@”, [error description]);
} else {
dynamicLanguageGenerationResultsDictionary = [error userInfo];

NSString *lmFile = [dynamicLanguageGenerationResultsDictionary objectForKey:@”LMFile”];
NSString *dictionaryFile = [dynamicLanguageGenerationResultsDictionary objectForKey:@”DictionaryFile”];
NSString *lmPath = [dynamicLanguageGenerationResultsDictionary objectForKey:@”LMPath”];
NSString *dictionaryPath = [dynamicLanguageGenerationResultsDictionary objectForKey:@”DictionaryPath”];

NSLog(@”Dynamic language generator completed successfully, you can find your new files %@\n and \n%@\n at the paths \n%@ \nand \n%@”, lmFile,dictionaryFile,lmPath,dictionaryPath);

self.path_to_dynamic_language_model = lmPath;
self.path_to_dynamic_grammar = dictionaryPath;

}
//[languageArray release];
if(dynamicLanguageGenerationResultsDictionary){
NSLog(@”LANGUAGE MODEL PATH: %@”,self.path_to_dynamic_language_model);
NSLog(@”DYNAMIC GRAMMAR PATH: %@”,self.path_to_dynamic_grammar);

switch ([self.started_listening intValue]) {

// Pocketsphinx is listening, switch to new language model
case 1:
NSLog(@”***Switching to new lm.”);
[self.pocket_sphinx_controller changeLanguageModelToFile:self.path_to_dynamic_language_model withDictionary:self.path_to_dynamic_grammar];
break;

// Otherwise, start listening with language model
default:
NSLog(@”***Starting with new lm.”);
//[self.pocket_sphinx_controller startListeningWithLanguageModelAtPath:self.path_to_dynamic_language_model dictionaryAtPath:self.path_to_dynamic_grammar languageModelIsJSGF:NO];
[self.pocket_sphinx_controller startListeningWithLanguageModelAtPath:self.path_to_dynamic_language_model dictionaryAtPath:self.path_to_dynamic_grammar acousticModelAtPath:[self.current_language_model pathToModel:@”AcousticModelEnglish”] languageModelIsJSGF:NO]; // Change “AcousticModelEnglish” to “AcousticModelSpanish” to perform Spanish recognition instead of English.
break;
}

}

}

[Lann]

I have AcousticModelEnglish.bundle in the root of my Resources folder in xcode. What else could this be?

[Lann]

Well, I seem to have gotten past the above issue and now i’m at:

Error: the default phonetic dictionary (null) can’t be found in the app bundle but the app is attempting to access it, most likely there will be a crash now.

[Lann]

I am still having a bit of trouble converting the following snippet:

-(void)languageModelGeneratorGenerateLanguageModelFromArray:(NSArray *)arguments withDict:(NSDictionary *)options{

NSString *languageArrayCSV = [arguments objectAtIndex:0];
NSArray *languageArray = [languageArrayCSV componentsSeparatedByString:@”,”];

NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray withFilesNamed:@”dynamic”withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil];

I am trying:

NSError *error = [self.language_model_generator generateRejectingLanguageModelFromArray:languageArray
withFilesNamed:@”dynamic”
withOptionalExclusions:nil
usingVowelsOnly:FALSE
withWeight:nil
// Change “AcousticModelEnglish” to “AcousticModelSpanish” to create a Spanish Rejecto model.
forAcousticModelAtPath:[AcousticModel pathToModel:@”AcousticModelEnglish”]];

But I get an error that AcousticModel is undefined

[Lann]

Scratch that last one. It was my own mistake. Now it compiles and links but the whole issue here is that I’m using an older version of an Apache Cordoba/PhoneGap plugin for openears and now I get the following error which did not previously occur:

-[LanguageModelGenerator generateRejectingLanguageModelFromArray:withFilesNamed:withOptionalExclusions:usingVowelsOnly:withWeight:]: unrecognized selector sent to instance 0x8330280

*** WebKit discarded an uncaught exception in the webView:decidePolicyForNavigationAction:request:frame:decisionListener: delegate: <NSInvalidArgumentException> -[LanguageModelGenerator generateRejectingLanguageModelFromArray:withFilesNamed:withOptionalExclusions:usingVowelsOnly:withWeight:]: unrecognized selector sent to instance 0x8330280

[Lann]

Thanks for the quick response. Oddly, the linker error persists even if I use the latest OpenEars. I also get an extra one, just for fun:

Undefined symbols for architecture i386:
“_OBJC_CLASS_$_SScribe”, referenced from:
objc-class-ref in Rejecto(LanguageModelGenerator+Rejecto.o)
“_returner”, referenced from:
-[LanguageModelGenerator(Rejecto) generateRejectingLanguageModelFromArray:withFilesNamed:withOptionalExclusions:usingVowelsOnly:withWeight:forAcousticModelAtPath:] in Rejecto(LanguageModelGenerator+Rejecto.o)
ld: symbol(s) not found for architecture i386

[Lann]

When attempting to link the SaveThatWaveDemo I get the following linker error:

“_input_sample_rate”, referenced from:
-[SaveThatWaveController bufferIsAvailable:] in SaveThatWaveDemo(SaveThatWaveController.o)
-[SaveThatWaveController pocketsphinxDidDetectFinishedSpeech] in SaveThatWaveDemo(SaveThatWaveController.o)

This seems to be a valid error since the variable in OpenEars 1.2.4 is actually called “input_sample_rate”.

Could you please provide a new binary for SaveThatWaveController.o?

[Lann]

Halle, it does, and you are a sexy man! This is exactly what i was looking for. I am getting an error during installation that pocketsphinxController.outputAudio is undefined. I’m not sure how to tell which version of OpenEars i’m running. This may be a huge problem for me because I have somewhat heavily modified OpenEars for my project and it may have been based on a version that does not have this method.

[Author]

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