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About Bertha
Voice Design Recipe Public
Director's casting notes & character prompt
Full Voice Summary
A sophisticated, mature British female voice with a warm, husky texture that conveys wisdom and reliability. The delivery is grounded and calm, perfect for content requiring a sense of trusted authority or intimate storytelling.
Acoustic Attributes
- age Estimate
- Mature Adult
The voice sounds like a mature, experienced adult.
- pitch
- Medium
The voice has a balanced pitch, neither exceptionally high nor low for a female speaker.
- intensity
- Normal
The voice is delivered at a standard, clear volume.
- energy Level
- Low
The delivery is calm and measured rather than energetic or animated.
- breathiness
- None
The voice is clear and resonant with no audible breathiness.
- pause Frequency
- Occasional
The speaker pauses occasionally, creating a natural but efficient flow.
- average Pause Length Ms
- 380
Pauses average 380 milliseconds, contributing to the professional pacing.
- vocal Fry
- Subtle
There is a subtle, low-frequency creakiness (vocal fry) present at times.
Detailed Performance Breakdown
At 193.95 words per minute, this voice speaks at a fast pace, ideal for efficiently delivering information in tutorials, explainers, or corporate training modules.
With a fundamental frequency of 161.73 Hz, this voice has a medium pitch for a female speaker, conveying professionalism and a sense of calm authority.
The intensity level of 63.11% indicates a normal, clear speaking volume that is easy to listen to without being overly loud or too soft.
An energy level of 3 out of 10 reflects a calm and measured delivery, making it suitable for serious narration, educational content, and professional applications.
Recommended Casting
- Perfect for narration in luxury brand advertisements.
- Ideal for corporate training modules requiring gravitas.
- Great for documentary narration needing a human touch.
- Suitable for biography or fiction audiobooks.