Two-syllable transliteration that fits short Western names like 'Abel', 'Albert' (short form), or 'Aber'.
艾 (ài) is the standard Mandarin character for the English 'A-/Ai-' sound (also used for
艾米 Amy,
艾伦 Allen);
柏 (bǎi) renders the '-ber/-bel' tail. The standard rendering of 'Albert' is usually
艾伯特, so
艾柏 most often appears as a novel/character name.