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Most forms of pitch-shifting shift the fundamental and all harmonic
frequencies proportionally. So when you shift the F0 of a male speaker up
by 4 semitones, it will sound like the voice of a person with a higher
pitched voice. It will sound very natural and understandable.
I don't know how audacity or garage band would do the shifting; they may
do it differently than other commercial devices, but you could easily
measure the signals before and after to determine which frequencies (F0
and harmonics) were shifted.
On 9/6/11 10:56 AM, "Brittany Guidone" <brittanyguidone@xxxxxxxxx> wrote:
>To explain more about my original question:
>I mainly want to know if "morphing" or "changing" the pitch of a male
>voice by positive 4 semi tones will change the components of the original
>male voice (before it was morphed) in a way that will make the two voices
>have different components or "make up" in comparison to one another,
>besides the fact that they will have different pitches.
>In other words, when the pitch of a voice is changed in audacity or
>garage band then what other components of the voice are changed (besides
>the pitch shift)?
>Sent from my Verizon Wireless BlackBerry