Measured voice · The bass

James Earl Jones

150s segment · male register · 16 benchmarked readings · measured 2026-07-26

Comparisons are based on Resonate's acoustic analysis of publicly available speeches. No endorsement or affiliation is implied.

The read

As a boy, James Earl Jones stuttered so badly that he spent years barely speaking, until a teacher lured the voice back out with poetry. What came back became the most impersonated bass in cinema. Measured in ordinary conversation, the register is exactly as advertised: average pitch and chest-register share both optimal, the energy anchored low and resonant. The surprise is everything around it. Vader’s slow, deliberate menace is nowhere in the man: twenty pauses in two and a half minutes, not one lasting a full second, and a melody swinging through more than an octave and a half. The depth is his. The stillness was always a performance.

Pitch contour · every voiced frame

1322323320s75s150sHz

Pitch & melody

Average pitch136Hz
in the zoneoptimal 100150 Hz
Pitch variability7.66st
above the zoneoptimal 36.5 st
Pitch range19.3st
above the zoneoptimal 712 st
Pitch dynamism (PDQ)0.48
above the zoneoptimal 0.150.38

Pacing & pauses

Pause ratio7.11%
below the zoneoptimal 1835 %
Average pause length0.53s
in the zoneoptimal 0.41 s
Syllable rate3.74syl/s
below the zoneoptimal 45.5 syl/s

Dynamics

Volume dynamics25.5dB
above the zoneoptimal 818 dB
Loudness variability7.8dB
in the zoneoptimal 3.58 dB

Voice quality

Voice clarity (HNR)9.62dB
below the zoneoptimal 1230 dB
Pitch steadiness (jitter)2.61%
above the zoneoptimal 02.5 %
Volume steadiness (shimmer)8.46%
in the zoneoptimal 09 %
Vocal fry (creak)3.3%
in the zoneoptimal 08 %

Spectral balance

Presence band (2-4 kHz)1.98%
below the zoneoptimal 620 %
Chest band (0-500 Hz)73.4%
in the zoneoptimal 3575 %
Spectral tilt (alpha ratio)-11.0dB
in the zoneoptimal -22-8 dB

Energy by band

Low (0–500 Hz)73.4%Mid (0.5–2 kHz)23.4%Presence (2–4 kHz)2.0%Brilliance (4 kHz+)1.3%

The presence band (2–4 kHz, red) is what carries a voice to the back of a room.

Steal this

the chest anchor

Both anchor readings — where the pitch centres and where the spectrum’s energy sits — read optimal together, and the pairing is trainable. Hum down a slow scale with a hand flat on the sternum until the vibration under your palm is unmistakable, then speak from just above that note, keeping a trace of the buzz in the words. Depth people believe isn’t about hitting a low note; it’s about resonating where you already are.

From the training library: The chest anchor

Same instrument · same scale

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