Recorded noise might offer clues to missing MH370

[HONG KONG] Scientists plan to release detailed information today about a mysterious noise, possibly that of an ocean impact, recorded by two undersea receivers in the Indian Ocean about the time Malaysia Airlines Flight 370 ceased satellite transmissions and vanished on March 8.

The low-frequency noise, which was outside the normal range of hearing and had to be sped up to be made audible, appeared to have travelled halfway across the Indian Ocean to the receivers off the coast of Australia.

"It's not very exciting. It's not even really a thump sort of a sound - it's more of a dull oomph," said Alec Duncan, a senior marine science research fellow at Curtin University near Perth, who has led the research.