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About Isla
Voice Design Recipe Public
Director's casting notes & character prompt
Full Voice Summary
Isla presents a pristine, high-frequency British vocal profile characterized by hyper-articulated consonants and a structured, rhythmic cadence. While the tone is inherently helpful and polite, the precision of the delivery and calculated spacing between phrases creates a polished, distinctly synthetic aesthetic.
Acoustic Attributes
- age Estimate
- Young Adult
The voice sounds like a young adult, typically between 20 and 40 years old.
- pitch
- High
The voice has a high-pitched tone, common for female AI assistants.
- intensity
- Normal
The volume is at a standard, comfortable listening level.
- energy Level
- Low
The voice maintains a low and consistent energy, sounding calm and controlled.
- breathiness
- None
There is no audible breathiness, resulting in a very clear and pure tone.
- pause Frequency
- Frequent
The speaker pauses frequently and deliberately, creating a structured, measured cadence.
- average Pause Length Ms
- 450
Pauses between phrases average 450 milliseconds, contributing to a deliberate pace.
- vocal Fry
- Subtle
A subtle creaky or gravelly quality, known as vocal fry, is present at times.
Detailed Performance Breakdown
With a pace of 163 words per minute, this voice speaks at a standard, easily understandable speed, suitable for conveying information clearly without rushing.
The voice's average pitch is 217.33 Hz, placing it in a higher vocal range for a female speaker, which contributes to its clear and distinct assistant-like quality.
At 52.85% intensity, the voice maintains a consistent and moderate volume, ensuring it is audible and clear without being loud or overpowering.
An energy level of 3 out of 10 indicates a calm, controlled, and neutral delivery, consistent with its robotic and informational style.
Recommended Casting
- Ideal for embodying the persona of smart home devices and virtual guides.
- Perfect for automated customer service menus requiring absolute clarity.
- Well-suited for step-by-step instructional content where precision is key.
- Excellent for sci-fi games or apps needing a distinctly synthetic aesthetic.