The ten voices

Five male, five female. Each of them read the same sentence — the clips below are those recordings, and the numbers next to them were measured from the clips themselves.

How to read the numbers

Hz is the median fundamental pitch — the lower the number, the deeper the voice. Words per minute comes from how long each voice took over the same 21-word sentence at speed 1.0. The gap between the fastest and the slowest voice is about 25%, which on a one-minute script is close to fifteen seconds.

Male voices

M1 Confident

explainers, product demos, first drafts

134 Hz
pitch
154
wpm

The everyday male voice: mid-range, even, no strong colour. If you do not know which voice you want, start here and change only if something bothers you.

Try this voice with your own text

M2 Deep

trailers, intros, anything that needs gravity

92 Hz
pitch
156
wpm

The second lowest of the ten. Weight without slowness — it keeps a normal pace while sitting a full octave under F4.

Try this voice with your own text

M3 Authority

announcements, tight video slots, instructions

108 Hz
pitch
185
wpm

The fastest voice in the set: the same sentence takes it 6.8 s where F3 needs 8.5 s. Useful when a script has to fit a fixed slot.

Try this voice with your own text

M4 Warm

welcome messages, tutorials, audio for children

119 Hz
pitch
164
wpm

Softer attack than M1 and M3 — the ends of sentences fall gently instead of stopping flat. The friendliest of the male voices.

Try this voice with your own text

M5 Narrator

audiobooks, long articles, documentaries

89 Hz
pitch
154
wpm

The lowest voice here and the most even. It holds a steady rhythm over long paragraphs, which is exactly what you want when someone listens for ten minutes and not for ten seconds.

Try this voice with your own text

Female voices

F1 Professional

business, e-learning, phone systems

182 Hz
pitch
154
wpm

Clear and neutral, with the crispest consonants of the female voices. Survives phone speakers and noisy rooms better than the softer ones.

Try this voice with your own text

F2 Bright

ads, social clips, notifications

191 Hz
pitch
164
wpm

High and lively, with wider pitch movement inside a sentence. Good on short text; on a long paragraph the energy can start to feel like a lot.

Try this voice with your own text

F3 Broadcast

news, reports, formal announcements

158 Hz
pitch
148
wpm

The slowest and lowest of the female voices — the news-desk register. Every word gets its full length, which is why the same sentence runs a second and a half longer than with M3.

Try this voice with your own text

F4 Expressive

characters, storytelling, playful content

200 Hz
pitch
180
wpm

The highest and the most animated: it reacts to punctuation more than any other voice here. Question marks and exclamation marks actually change the melody — which also means sloppy punctuation shows up fastest with F4.

Try this voice with your own text

F5 Gentle

meditation, sleep, calm narration

166 Hz
pitch
160
wpm

Quiet delivery, soft consonants, small pitch range. The one to use when the recording should not demand attention — meditation, sleep, waiting-room audio.

Try this voice with your own text

Which voice for what

Two things decide the voice: how long someone will listen, and through what speaker. Long text wants an even voice — M5 and F3 hold a rhythm for minutes, while F2 and F4 tire the listener along with themselves. Short text tolerates the opposite: in a fifteen-second clip the livelier voice carries better.

The low voices (M2, M5) sound excellent on headphones and disappear on a phone speaker, which simply does not reproduce much below a hundred hertz. If the recording will be heard on a phone without headphones, F1 and M3 stay intelligible.

And a simple bit of arithmetic for video: if the script has to fit thirty seconds, at 154 words per minute that is about 77 words. Count them before you record — cutting two sentences is easier than speeding up the audio afterwards.

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