Cellular Voice Distortions 1

[josetecson]

I am a guy, but the person on the other end of the call hears a female's voice saying hello. Besides, crosstalk wherein it is possible to hear someone else
on the line, is it possible that the effects of signal loss could distort the voice transmitted in terms of pitch? The usual voice distortions I know of are garbled, choppy, underwater, echo, and the like. Is a pitch change at all possible?

Thanks.

 

[VEBill]

We all know that most mobile phones are GSM.

Wiki: "The most common speech coding scheme is Code Excited Linear Prediction (CELP) coding, which is used for example in the GSM standard."

I've read a bit about CELP and I know it uses the Source-filter model of speech. This encoding technique measures the fundamental frequency produced by the speaker's vocal cords. If the resultant data was corrupted during transmission, and the built-in error correction failed to correct it, then the wrong value might result in a temporary change in pitch.

So, yes. It's possible. ...Ma'am, I mean Sir.