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About Libby
Voice Design Recipe Public
Director's casting notes & character prompt
Full Voice Summary
A highly articulate and polished British female voice that epitomizes the sound of a modern, helpful interface. The tone is consistently smooth and professional, lacking organic imperfections, which ensures maximum clarity for informational content.
Acoustic Attributes
- age Estimate
- Young Adult
The voice sounds like it belongs to a professional in their late 20s to 30s.
- pitch
- High
The voice has a higher-than-average pitch for a female, sounding clear and bright.
- intensity
- Normal
The voice is delivered at a standard volume, neither too loud nor too soft.
- energy Level
- Medium
The voice sounds engaged and pleasant without being overly energetic or flat.
- breathiness
- None
There is no significant audible air in the voice, contributing to its clarity.
- pause Frequency
- Occasional
Pauses are used naturally between phrases, aiding in the conversational flow.
- average Pause Length Ms
- 410
The pauses are of a standard length for conversational speech.
- vocal Fry
- Subtle
A slight, almost unnoticeable creaky quality is occasionally present at the end of phrases.
Detailed Performance Breakdown
With a WPM of 153, this voice speaks at a clear and comfortable pace, similar to a natural conversation and making it very easy for listeners to follow along.
The voice's average pitch of 200 Hz sits in a standard, approachable female range that is pleasant and clear, preventing listening fatigue.
At 26% intensity, the voice is delivered with a soft and controlled volume, creating a calm, professional, and non-intrusive listening experience.
An energy level of 5 out of 10 gives this voice a balanced and professional quality—engaging enough to hold attention but calm enough for instructional content.
Recommended Casting
- Automated customer service and IVR menus.
- Structured e-learning and educational modules.
- Corporate training and compliance presentations.
- Accessibility tools and screen reading software.