The spelling of the name "Erix" can be explained using the International Phonetic Alphabet (IPA). The letters "E" and "i" represent the vowels /ɛ/ and /ɪ/, respectively. The letter "r" is a consonant pronounced as a voiced alveolar (post-alveolar) approximant /ɹ/. The letter "x" represents the voiceless velar fricative /k͡s/, which is a combination of the sounds /k/ and /s/. Therefore, the correct IPA transcription for the spelling "Erix" is /ɛrɪks/.