English grammar_ Adverb - loud /aloud / loud

• aloud 【adv】 Loudly , There is no comparative level or superlative level , No degree adverbs are used to modify ;

• loudly 【adv.】 Loudly , Make a noise

1> speak a litte louder

Coud you speak a litte louder, please？
Could you speak a little louder ？

• loud - louder - loudest
• loud 【adv.】 Loudly ,speak, talk, laugh,read, sing, cry Conjunction of equivocation

2>

Every one in the class had to read aloud the extract from the book.
Everyone in the class must read the abstract of the book aloud .