Is there a way to obscure speech recording so there is no way to play it and get something intelligible, but still keep it useful for machine learning? For my project I have to collect data in uncontrolled environment, and I would like to do it without accidentally storing sensitive information.
It seems to be an uncommon problem, and I haven’t found much. I am currently using spectrograms to extract features. For what I have found, making a spectrogram from a soundwave uses STFT and doesn’t store phase information, so there is not enough information to perform the inverse transformation. Do I understand this correctly? What are other ways to do it?
I’m a bot, bleep, bloop. Someone has linked to this thread from another place on reddit:
^(If you follow any of the above links, please respect the rules of reddit and don’t vote in the other threads.) ^(Info ^/ [1](/message/compose?to=/r/TotesMessenger))
Contact ↩︎