CODEWITHSUNDEEP
swifttext-to-speech
Meep
Meep

Reputation: 531

Swift - how to get the text to speech languages as descriptive string

I'm trying to get the text to speech language codes (in BCP 47) to transform into a descriptive string for selecting the language to have text to speech feature in the app.

Expected -

Arabic (Saudi Arabia) - ar-SA Chinese (China) - zh-CN Chinese (Hong Kong SAR China) - zh-HK Chinese (Taiwan) - zh-TW Czech (Czech Republic) - cs-CZ

Actual -

ar-SA (fixed) cs-CZ (fixed)

class func getListOfSupportedLanguages() {
        for voice in (AVSpeechSynthesisVoice.speechVoices()){
            print(voice.language)
            let language = Locale.init(identifier: voice.language)
            print(language.description)
        }
    }

I'm following this helpful website and got different results.

https://useyourloaf.com/blog/synthesized-speech-from-text/

@property (strong, nonatomic) NSArray *languageCodes;
@property (strong, nonatomic) NSDictionary *languageDictionary;
@property (strong, nonatomic) AVSpeechSynthesizer *synthesizer;

- (NSArray *)languageCodes
{
    if (!_languageCodes)
    {
        _languageCodes = [self.languageDictionary keysSortedByValueUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
    }
    return _languageCodes;
}

// Map between language codes and locale specific display name
- (NSDictionary *)languageDictionary
{
    if (!_languageDictionary)
    {
        NSArray *voices = [AVSpeechSynthesisVoice speechVoices];
        NSArray *languages = [voices valueForKey:@"language"];

        NSLocale *currentLocale = [NSLocale autoupdatingCurrentLocale];
        NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
        for (NSString *code in languages)
        {
            dictionary[code] = [currentLocale displayNameForKey:NSLocaleIdentifier value:code];
        }
        _languageDictionary = dictionary;
    }
    return _languageDictionary;
}

Upvotes: 0

Views: 1194

Answers (2)

mrmillmill
mrmillmill

Reputation: 56

The first thing to do is Make sure to import the AVFoundation library into the header (.h) file that will implement the AVSpeechSynthesizer or AVSpeechSynthesizer along with its properties and methods are not accessible.

Ex: #import <AVFoundation/AVFoundation.h>

Great feedback in this post. Thanks everyone.

Upvotes: 0

Meep
Meep

Reputation: 531

I got it working, thanks to Matt - NSLocale has displayName and the Locale doesn't have one. According to the posting below

NSLocale Swift 3

Here is the code -

   class func getListOfSupportedLanguages() {
         let current = Locale.current.languageCode

         for voice in (AVSpeechSynthesisVoice.speechVoices()){
              let language = NSLocale.init(localeIdentifier: current!)
              print(language.displayName(forKey: NSLocale.Key.identifier, value: voice.language)?.description as! String)
         }
   }

the output -

English (Australia)
English (United Kingdom)
English (Ireland)
English (United States)
English (South Africa)

Upvotes: 1

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