Question

define loudness of sound

Answer 1

ʟᴏᴜᴅɴᴇss ʀᴇғᴇʀs ᴛᴏ ʜᴏᴡ ʟᴏᴜᴅ ᴏʀ sᴏғᴛ ᴀ sᴏᴜɴᴅ sᴇᴇᴍs ᴛᴏ ᴀ ʟɪsᴛᴇɴᴇʀ. ᴛʜᴇ ʟᴏᴜᴅɴᴇss ᴏғ sᴏᴜɴᴅ ɪs ᴅᴇᴛᴇʀᴍɪɴᴇᴅ, ɪɴ ᴛᴜʀɴ, ʙʏ ᴛʜᴇ ɪɴᴛᴇɴsɪᴛʏ, ᴏʀ ᴀᴍᴏᴜɴᴛ ᴏғ ᴇɴᴇʀɢʏ, ɪɴ sᴏᴜɴᴅ ᴡᴀᴠᴇs. ᴛʜᴇ ᴜɴɪᴛ ᴏғ ɪɴᴛᴇɴsɪᴛʏ ɪs ᴛʜᴇ ᴅᴇᴄɪʙᴇʟ (ᴅʙ). ᴀs ᴅᴇᴄɪʙᴇʟ ʟᴇᴠᴇʟs ɢᴇᴛ ʜɪɢʜᴇʀ, sᴏᴜɴᴅ ᴡᴀᴠᴇs ʜᴀᴠᴇ ɢʀᴇᴀᴛᴇʀ ɪɴᴛᴇɴsɪᴛʏ ᴀɴᴅ sᴏᴜɴᴅs ᴀʀᴇ ʟᴏᴜᴅᴇʀ.

Answer 2

In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as, "That attribute of auditory sensation in terms of whichsounds can be ordered on a scale extending from quiet to loud."