2025-07-16 · Baduno Editorial Team · 7 blog.readMin · Blog & Knowledge
Documenting brand voice: The tone guide in practice
Why does every other brand sound like no one? Because their tone lives in heads instead of documents. Here's how to change that in four pages.
What belongs in it
Salutation (Du/Sie and equivalents per language), tone spectrum (where between sober and playful), taboos (superlatives? Anglicisms? Humor?), example pairs: 'This is how we write – this is how we don't.' Four pages suffice; nobody reads forty.

One decision per language
Formality does not translate linearly: The German Sie, the French vous, the Swedish du follow different conventions. The guide defines what corresponds to your brand per market – decided once instead of improvised a thousand times.
From document to tool
The guide belongs in every briefing, every translation pipeline, and every review as a quality criterion. With us, it is stored in machine-readable form – the AI pre-translation receives it as a guideline, the human review as a benchmark.
Maintenance
Language lives: new products, new markets, new words. A fixed annual review keeps the guide alive – and prevents it from becoming a PDF monument that no one opens anymore.
Cultural nuances instead of word-for-word
A tone guide that only regulates formality level falls short. Language lives from cultural expectations: Germans appreciate directness and technical terms, Japanese readers expect politeness forms and indirect statements. The guide must therefore define for each target culture whether humor is desired (often in the US, rarely in Japan), how strongly the brand expresses its opinion (German: factual, Brazilian: emotional), and which metaphors work (e.g., sports comparisons in Spain, nature imagery in Scandinavia). These decisions should be stored per language in a table, supplemented with example sentences from real projects. This prevents a German advertising slogan from sounding rude in the French market or a Swedish one from seeming too cold. Cultural depth is not a luxury, but the foundation for authentic brand communication.
The Guide as Translation Input
The tone guide only unfolds its effect when it is machine-evaluable. At Baduno GmbH, we store it as a structured file (JSON or YAML) with fields for address form, degree of directness, permitted stylistic devices, and taboos. The AI pre-translation receives this input as a prompt – it recognizes, for instance, that product descriptions in Swedish must use the informal 'du' and in French the formal 'vous'. The human reviewer then no longer checks the fundamental question, but only fine-tuning. Example: A German text with 'Sie profitieren von' is automatically converted to 'Vous bénéficiez de' for the French market; the reviewer only checks whether the verb form is correct. This integration saves 30% review time and significantly increases consistency. Important: The guide must be built into the translation pipeline, not as a separate PDF.
Measuring Tone Consistency
What is not measured cannot be improved. Conduct regular spot checks: take ten translated texts from each language market and evaluate them against the guide. The scale ranges from 1 (completely off) to 5 (perfect). Document deviations by category (address form, politeness, humor) and derive actions. Example: If it turns out that Spanish translations are often too formal, the guide can set the address to 'tú' or the review team can be trained. Automated checks are also possible: use simple keywords or sentiment analysis to check, for instance, the frequency of 'please' in German. The goal is a consistency score of at least 4.0 – only then is the brand tone stable. The results feed into the annual review of the guide.
Why does every other brand sound like no one? Because their tone lives in heads instead of documents. Here's how to change that in four pages.
Scaling to New Languages and Channels
Once the tone guide is established for your core markets, you need a schema for expansions. Each new language receives its own entry, derived from the nearest related language (e.g., Danish from Swedish). Channel differentiation is equally central: A social media post can handle more emojis and abbreviations than a legal text, even within the same language. In the guide, define a separate style mode for each channel: 'Core' for websites, 'Social' for LinkedIn and X, 'Support' for emails. Practical approach: Create a grid with languages as rows and channels as columns; each cell contains the specific rules. This keeps the effort manageable, even when scaling from 5 to 24 languages. When introducing new languages, always check whether cultural specifics (e.g., Arabic script, Japanese honorific levels) require additional entries.
Tone guide in the CMS: Automated consistency check
To anchor the tone guide sustainably in daily work, it should be integrated directly into the content management system (CMS). Store it there as structured metadata – for example, as fields for permitted address forms, taboo words, or style specifications per language and channel. When creating a new post, editors automatically see the applicable rules without needing to open a separate PDF. Additionally, automated checks can be set up: A script scans the entered text for prohibited terms, checks address consistency, or warns against unwanted Anglicisms. This check takes place before approval, so corrections happen in the editorial workflow – not just in the review stage. It is important that the rules are defined granularly per language market and channel: What applies to the German LinkedIn page does not necessarily fit the French support email. Automated checking saves time, but does not replace human quality assurance. However, it reduces typical oversight errors and ensures the guide is not just on paper but actively used daily. When introducing it, plan a pilot run with one language to fine-tune the rules before rolling out to all markets.
Training and Feedback Loop for Translation Teams
A tone guide only unfolds its full impact when all stakeholders understand and can apply it. Therefore, conduct regular training sessions for translators, proofreaders, and editors – ideally per language market. In these sessions, explain not only the rules but also the reasoning behind them: Why is indirect language important in the Japanese market? Why do we avoid humor in Swedish legal texts? Using real-world examples, train teams to apply the guide appropriately in different situations. Additionally, establish a feedback loop: after each measurement of tonal consistency (see section on measurement), discuss deviations with the responsible translators and collect suggestions for improvement. These insights feed into the annual update of the guide. This creates a cycle of guidelines, application, monitoring, and adjustment. However, avoid seeing the guide as a rigid corset; it should provide orientation without stifling creativity. A well-trained team will independently recognize when a deviation is sensible – for example, with a culturally sensitive slogan. Training also strengthens the brand's linguistic intuition and reduces the long-term review effort.
Integration into the Content Workflow
A tone guide only delivers results when it is embedded in the entire content workflow. Start as early as the briefing: every copywriter, whether internal or external agency, receives the guide as mandatory reading along with the assignment. Add a short checklist to be completed before submission – for example: 'Salutation checked according to guide? Taboo words avoided? Style aligned with specific channel mode?' After creation, the translation pipeline follows: as described in the section 'The Guide as Translation Input,' the guide is passed to the AI in a machine-readable format. Post-translation, the human proofreader checks not only linguistic accuracy but also tonal conformity using the same criteria. A traffic light system in the project management tool visualizes the status: green = fully compliant, yellow = minor deviations (e.g., an anglicism that is permitted in the guide), red = violation of fundamental rules. Only green and yellow texts are approved. Also define who decides on deviations: the proofreader alone or in consultation with the market responsible. This integration ensures that the guide does not exist as a standalone document but governs every step of content creation.
Training and Onboarding
Even the best tone guide is of little use if those involved do not know it or cannot apply it correctly. Therefore, plan structured training for everyone involved in brand communication: copywriters, translators, proofreaders, and marketing managers in the respective countries. Start with a basic workshop (two to three hours) covering the guide's structure, cultural backgrounds, and the most common mistakes. Show concrete before-and-after examples from your industry. For new employees or agencies, the onboarding should include a mandatory module that ends with a short test (e.g., five multiple-choice questions on salutation, tone, and taboos). Conduct an annual refresher training that addresses recent changes to the guide and new insights from consistency measurement. An internal wiki with an FAQ collection has also proven valuable: team members can post specific uncertainties (e.g., 'Can I use the word "innovation" in the French newsletter?') and receive a binding answer. This creates a living knowledge system that complements the guide and increases its acceptance. Training pays off: teams that receive regular training demonstrably achieve higher consistency scores than those that only receive the document.
blog.faqT
How can I prevent the tone guide from being ignored in daily work?
Integrate the guide directly into your translation workflows: as a machine-readable specification for AI and as a checklist for reviewers. Embed it in briefings and conduct regular spot checks. Once a year, the document should be revised together with market managers to keep it relevant.
Do I need to create a separate tone guide for each language market?
A central guide with language-specific variations is sufficient. Define global principles (values, taboos) and add specific decisions for each language (address forms, formality, humor). This keeps the brand consistent without neglecting local nuances.