is it possible to alter the frequency of an audio file (wav) using java programming?

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iam doing a project on speech encryption.. the thing is that i am stuck somewhere.. i need help on how to alter the frequency of a recorded sound using java.. changing its amplitude can also help.. I am REALLY STUCK HERE... please help me out :|.....

Posted 4-Feb-14 14:51pm

Member 10499359

Updated 4-Feb-14 14:52pm

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Matt T Heffron 4-Feb-14 20:55pm

What have you tried?

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Peter Leow · Answer 1 · 2014-02-04T15:48:00

Solution 1

Read this and explore for yourself: Java Sound API Tutorials[^]

Posted 4-Feb-14 15:48pm

Peter Leow

bling · Answer 2 · 2014-02-05T10:48:00

Seems like you are trying to do speech inversion.

http://en.wikipedia.org/wiki/Voice_inversion[^]

If so, the wiki article covers it well enough. Mix (multiply) the wave file samples with a set of sine wave samples (that vary from +1.0 to -1.0) and filter the result. Filtering is a topic all its own.