The answer is true.
Old English meter was used in the poetry from the Anglo-Saxon poetic. It uses alliteration that connects two half-lines. It means that a word or syllable in the second half-line will alliterate with one or more words or syllables in the first half-line. The alliterated words or syllables have more stress.
Not all syllables can be alliterated. Nouns and verbs are frequently alliterated, while pronouns are rarely alliterated.