Question

what is the main difference between in male and female frequency of voices ?
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Answer 1

Answer:

Looking at the fundamental frequencies and upper harmonics of average voices shows the differences pretty clearly: Female voice fundamentals may range from around 350 Hz to 3,000 Hz. Their harmonics go from 3,000 Hz to 17,000 Hz. Male vocal fundamentals start at 100 Hz and top out at about 900 Hz.

Explanation:

Answer 2

Answer:

In general, women speak at a higher pitch—about an octave higher than men. An adult woman's average range is from 165 to 255 Hz, while a man's is 85 to 155 Hz (see sources). Men's voices are generally deeper because the surge of testosterone released during puberty causes their vocal cords to elongate and thicken.

Explanation:

There’s a notable difference between how male and female voices sound. The vocal difference between genders isn’t just apparent during singing; it’s obvious during everyday speech, too. This is because many core elements of the human voice change according to gender: 

• Articulation-Females and males use different sounds and tones when they speak. Females often have a softer, gentler articulation, while male voices are typically expected to be harsher.

• Pitch-Male voices tend to be low pitched, while female voices are usually high pitched.
• Non-verbal communication-There’s more to communicating than actual speech and sound. Females and males differ in the way they use other communication techniques; females use more hand gestures during speech and will typically use softer vocabulary than males. 
• Intonation-How much the voice rises and falls during speech varies across the genders. Males will usually speak in full pitch, with little rise and fall. Females are much more likely to vary their pitch when they talk. 
• Expression-Males and females will use different vocal techniques to express themselves. While males raise their volume for extra emphasis, a female will increase her pitch for extra effect instead.