Six months ago Bishop Museum launched an effort to bring back a voice from the past.

More information was released about the condition of King David Kalakaua's voice on a wax cylinder recorded more than 100 years ago.

Museum officials have been careful not to raise hopes about what could be heard only to have them dashed.

A fragile recording on a relic has been digitized in part by Hawaiian Airlines, the Lawrence Berkely National Laboratory and Institute of Museum and Library Studies.

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Desoto Brown, with Bishop Museum, recalled what it was like listening to the faint recording.

"You are concentrating, listening to this repeatedly trying to pick out to recognize words through the scratchiness -- a faint human voice that might be coming through and you close your eyes trying to hear it," Brown said.

King David Kalakaua was on his deathbed in San Francisco when the historic recording was made by a representative of the Thomas Edison Company.

"There is one newspaper account that says Louis Glass spoke first on the recording. We think that's what we hear first and that's the more distinct speech," Brown said. "After that, there appears to be another batch of speech but all you can hear are one or two single syllables like, 'Ah,' and that's it."

Those digital files now have to go to another sound restoration specialist or maybe more.