How to Create a Brand Voice Guideline and Share It with External Narrators

Why a Brand Voice Guideline Matters

In videos, web content, commercials, recruitment films, and e-learning, voice does more than deliver words. It shapes how the brand feels.
Even with the same script, a calm read and an energetic read can create completely different impressions.

In practice, however, narrators and production partners often change from project to project. Direction is frequently reduced to vague comments like “make it brighter” or “give it more credibility.” That leads to inconsistent interpretation and more revisions.

This is where a brand voice guideline becomes valuable. It is a document that defines how the brand should sound and makes that standard shareable with external talent.

A clear guideline helps you:

• Reduce variation between narrators
• Communicate direction faster
• Improve first-take accuracy
• Minimize internal misalignment
• Maintain consistency across ongoing series and campaigns

Finding “a good voice” is not enough. If you want repeatable results, you need a repeatable standard.

Core Elements to Include in the Guideline

A brand voice guideline does not need to be long. Even one or two A4 pages can be enough to start. The key is to move beyond abstract mood words and provide information that affects actual performance.

1. Define the Brand as a Person

Start by asking: if this brand were a person, how would it speak?

For example:

• Sincere and calm
• Friendly, but not too casual
• Knowledgeable, but never intimidating
• Positive and clean in tone

If this personality is unclear, the delivery will also be unclear.
A word like “bright” alone is too vague. Does it mean cheerful, refreshing, youthful, or casual?

2. Clarify the Intended Audience

You also need to define who the message is for.
The right delivery changes depending on whether the content targets B2B viewers, job candidates, or general consumers.

Useful audience items include:

• Age range
• Gender tendency
• Job role or position
• Level of prior knowledge
• Viewing situation

A busy executive watching on a smartphone will require a different pace and emphasis than a general audience hearing the piece at a trade show booth.

3. Specify the Vocal Direction

This section should directly support casting and performance direction.

Include points such as:

• Gender image
• Perceived age
• Vocal texture
• Pace
• Emotional intensity
• Sense of distance

For example:

• A calm voice that sounds 30s to 40s
• Reassurance is more important than sparkle
• Slightly slower pace
• Controlled inflection with careful line endings
• Avoid sounding overly promotional

4. List What to Avoid

A useful guideline should define not only the target but also the wrong direction.
Clear “don’ts” dramatically improve the first submission.

For example:

• Avoid exaggerated commercial-style inflection
• No anime-like high energy
• Avoid whispery reads that sound weak
• Do not rush the script into a hard-sell explanation

How to Make the Guideline Practical for Real Projects

Even a well-thought-out guideline is useless if it is hard to apply in production. Make it easy to understand quickly.

1. Prepare a One-Page Summary

In addition to the full guideline, create a short summary page that gives the essentials at a glance.

It should include:

• A one-sentence brand voice summary
• What matters most for this specific project
• Whether reference audio is provided
• Key tones to avoid
• Recording notes

Many narrators handle multiple jobs at once. Ideally, they should understand the direction within the first 30 seconds of reading your material.

2. Add Reference Audio, Not Just Words

Voice direction is easy to interpret differently when it exists only in writing.
If possible, attach previous videos, scratch tracks, or approved samples.

Best practices:

• Limit references to one or two strong examples
• Explain what is good about them
• State clearly that they are references, not templates to copy exactly

For instance, identify whether the useful element is the calmness, the softness of the line endings, or the trustworthy explanatory tone.

3. Put Performance Notes in the Script Itself

Even with a general guideline, each script has its own purpose.
That is why the script should also contain practical cues.

Helpful notes include:

• Words to emphasize
• Places to leave space
• How numbers should be read
• Accent guidance for proper nouns
• Shifts in tone between sections

Company names, service names, abbreviations, and technical terms are especially prone to misreading, so they should always be clarified in advance.

How to Share It Smoothly with External Narrators

A good guideline loses value if the handoff is vague. Do not stop at sending a PDF. Plan for alignment.

What to Confirm Before Recording

Before recording, it is best to prepare at least the following:

• The main guideline
• A project-specific summary
• The final script
• Reference audio
• A pronunciation list
• The revision policy

The revision policy means practical expectations such as whether major direction changes are possible later, or whether you want multiple tonal options in the first take. Sharing this early improves preparation on the narrator’s side.

Always Translate Abstract Words into Concrete Meaning

Words like “gentle,” “trustworthy,” and “stylish” are useful, but highly subjective.
Whenever you use them, define them.

For example:

• Gentle = not maternal, but careful and low-pressure
• Trustworthy = not necessarily low-pitched, but stable in pace
• Stylish = reduced excess inflection without becoming cold

This small step can significantly reduce revision rounds.

Start Simple and Keep Updating

You do not need a perfect brand voice guideline from day one.
What matters more is creating a version that can evolve with each project.

A practical workflow is:

• Start with a concise first version
• Add notes after each project on what worked and what missed
• Build a library of reference audio
• Reflect comments from internal reviewers
• Save recurring narrator questions as shared knowledge

Brand voice, like a logo or brand color system, becomes stronger through consistency over time.
Once you can describe it in terms that external narrators understand, audio quality becomes more stable and production decisions become faster.

Move beyond “something like this” and aim for a process where any narrator can still sound unmistakably like your brand.