How to get two audio voice and how to identify its frequencies

hello,,
i am new to javax.sound .. here anybody help me in my mini project
1.. i hv to get to audio voice from two different person same time...
2 next i hv to visualize their audio frequency.... so sure that both the audio voice vary in frequency..
3.. i hv to seggregate this two audio voice and store it in different file and hv to play it separately
is here any body to help me
i will be greatly thanxful 4 ur info

1. How are you getting the voices at the same time? Are these signals
coming from the same line, e.g. microphone? Or are you just reading
two audio files from disk?
2. To get the frequency of a audio signal, you'll need to do Fast Fourier
Transform to that signal. You'll propably need a third party library for this,
search for this with google.
3. If your signals are coming from the same source, it's going to be very
hard to filter out one of these voices. If you don't know anything about the
voices in forehand, I don't think this will be possible.
Give some more information about what you're trying to achieve.
kari-matti

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