The writing system of Central Kurdish features three cases in which there is no one-to-one mapping between the orthographical letters and the phonemes of the language. Consequently, the written words including these cases may be pronounced in multiple ways. The process of finding the correct pronunciation of written words is called Grapheme-to-Phoneme (G2P) conversion and is a key step in natural language processing tasks such as speech synthesis. As Central Kurdish is a low-resourced language, we present a G2P conversion method based on the phonological rules of the language, rather than pronunciation dictionaries and data-driven learning methods. After reviewing the phonology and alphabet of the language through the framework of Optimality Theory, we generate all possible pronunciations. Then, by specifying and applying ranked constraints, we eliminate undesirable candidates so as to keep only one well-formed pronunciation per word. The evaluation of our proposed method on two datasets resulted in 0.75% of overall Phoneme Error Rate (PER) and achieved 94.71% precision in the detection of the short vowel /i/ and 100% of accuracy in the conversion of the letters “ی” and “و”. Analyzing these results suggests that there is no need for additional new letters in the current orthographic system of Central Kurdish. This approach also enables us to have a ranked suggestion list for the manual checking of the few unresolved ambiguous situations.

库尔德中央语的书写系统具有三种情况，即拼写字母和语言音素之间没有一对一的映射。因此，包括这些情况的书面单词可以以多种方式发音。找到书面单词的正确发音的过程称为音素到音素（G2P）转换，它是自然语言处理任务（如语音合成）中的关键步骤。由于库尔德中央语言是一种资源贫乏的语言，因此我们提出了一种基于语言的语音规则的G2P转换方法，而不是语音词典和数据驱动的学习方法。在通过“最优性理论”的框架回顾了语言的语音和字母之后，我们生成了所有可能的发音。然后，通过指定和应用排名约束，我们会消除不受欢迎的候选词，以便每个单词仅保留一种格式正确的发音。在两个数据集上对我们提出的方法进行了评估，结果占总音素错误率（PER）的0.75％，在检测短元音/ i /时达到了94.71％的精度，在字母“ی”的转换中达到了100％的精度和“و”。分析这些结果表明，在当前的库尔德中央拼字系统中，不需要其他新字母。这种方法还使我们能够获得排名建议列表，以手动检查一些未解决的模棱两可的情况。短元音/ i /的检测精度为71％，字母“ی”和“و”的转换精度为100％。分析这些结果表明，在当前的库尔德中央拼字系统中，不需要其他新字母。这种方法还使我们能够获得排名建议列表，以手动检查一些未解决的模棱两可的情况。短元音/ i /的检测精度为71％，字母“ی”和“و”的转换精度为100％。分析这些结果表明，在当前的库尔德中央拼字系统中，不需要其他新字母。这种方法还使我们能够获得排名建议列表，以手动检查一些未解决的模棱两可的情况。