Question

the porter is carrying louds voice change ​

Answer 1

ʜᴇʏᴀ ᴍᴀᴛᴇ ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ 
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*First of all i think it is loads and not louds

●Loads are being carried by the porter.

Answer 2

the carrying loudspeaker change in the mouth tubes search 8n U Tube