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Altera_Forum's avatar
Altera_Forum
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16 years ago

low pass audio filter to cut female voice

i made a/d & d/a custom board can be connected to DE1 via GPIO header, want to design simple demonstration to cut female voice using DSP Builder. i will use mic input to a/d and d/a out to speaker. h...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I'm pretty sure you need something more sophisticated than a FIR filter to reject female voice from a speech register. Some solutions based on Wiener/Adaptive Filtering or spectral substraction could be helpful.