Real-time sentiment analytics. Understand how your audience responds to your content, topics and products.

Using AI-powered video analytics, CALA. measures your attendees' emotions, attention, and engagement – anonymously, in compliance with GDPR, and in real time. For the first time, you can understand which content truly resonates with your audience and why.

What Is Sentiment Analysis?

CALA.'s Sentiment Analytics provides precise, data-driven insights into your audience's interest, attention, and emotional engagement.

This is made possible by state-of-the-art camera technology, AI-powered image analysis, and proprietary algorithms that process all information in a fully anonymized manner.

For the first time, you gain objective and reliable data on which topics, content, or product features truly capture your audience's interest: from emotional responses and changes in attention over time to engagement and activation levels.

Detailed Sentiment Scores for individual speakers, sessions, or the entire event also become visible, finally turning intuitive impressions into measurable insights.
Measure and visualize

What You Can Achieve with Sentiment Analytics

See and understand
Objective Product Feedback: Identify which products or product categories generate the highest level of customer interest, right down to individual product features.

Better Content & Messaging: Validate your topics and communication strategies based on real audience reactions.

Higher Attendee Engagement: Use real-time data to dynamically adapt content and optimize the overall experience.

Maximum Relevance: Identify top-performing topics, speakers, presentations, or exhibition booths.

Strategic Optimization: Make informed, data-driven decisions that deliver measurable results.

How the Technology Works

The camera footage is processed in real time and immediately converted into fully anonymized datasets. The raw footage is never stored.

CALA.'s AI-powered algorithms then analyze the contextual relationships second by second.

They detect how many people are present in a given area, categorize age and gender exclusively in aggregated form, and measure two key sentiment metrics: Experience, which reflects the overall positivity of the audience's perception, and Emotional Activation, which indicates the intensity of the audience's emotional response.
Data processing is fully GDPR‑compliant - without exception.

No personal data is ever captured, as each camera frame is immediately overwritten.

All generated datasets are stored exclusively in a certified EU‑based cloud, where they are securely and anonymously processed.

about AI‑supported event analytics in compliance with the GDPR and the EU AI Act.
At CALA., all data processing is fully GDPR-compliant – without exception.

No personal data is collected, as every camera image is immediately overwritten and never stored. All generated datasets are stored exclusively in a certified EU cloud, where they are processed securely and anonymously.

All generated datasets are stored exclusively in a certified EU cloud, where they are processed securely and anonymously.

Learn more about AI-powered event analytics in compliance with the GDPR and the EU AI Act.

Typical Use Cases

Conferences & Keynotes

Which topics generate the strongest resonance?
Which speakers connect most effectively with the audience?

Breakout Sessions

Which sessions achieve the highest activation levels?
How does audience sentiment shift throughout the session?

Trade Shows & Exhibits

Which booths attract visitors most effectively?
How long do visitors stay at specific touchpoints?

Brand Activations

Which messages trigger emotional responses?
Which content resonates most with different audience groups?

Content Value

Sentiment Analysis clearly shows that technical and company‑related topics generate the highest levels of audience attention, while political content receives significantly less resonance.

Format Value

The analysis makes engagement differences between panels, talks, and speeches clearly visible and enables you to compare individual event days with precision - helping you optimize your program design.

Boosting Event Performance

Sentiment Analysis helps you refine your program structure, increase attendee activation and participation, and strengthen your product and marketing strategies through clearly measurable, data‑driven insights.

Q&A - Your questions, our answers

Demographic Differentiation

Question: Are there differences in reactions between age groups or genders?


Answer: Yes, CALA. highlights aggregated differences clearly. You can see which age groups or genders respond more strongly, which topics resonate most, and where audience segments perceive content differently. Personal data is never collected.

Sentiment Score

Question: How do speakers, sessions, or product features perform in comparison?

Answer: The Sentiment Score shows you at a glance which content performs best. You immediately see which speakers engage the crowd, which sessions drive activation, and which topics truly resonate with your audience.

Mood Shifts During the Event

Question: How does audience attention change throughout the event?

Answer: CALA. shows you, second by second, when attention rises or dips — and why. You see which content triggered increased engagement and where the audience disengaged or lost focus.

Improved Product & Marketing Strategies

Question: How does Sentiment Analysis help improve my product or marketing strategy?

Answer: By analyzing real reactions and audience feedback, you know exactly which messages work and which don’t. This allows you to tailor content, products, and campaigns precisely to the interests and emotions of your target groups.

Higher Audience Engagement

Question: How can Sentiment Analysis help increase audience engagement?

Answer: Real‑time insights reveal positive reactions as they happen, allowing you to take immediate action to maintain attention, strengthen emotional connection, and enhance the overall event experience.

Demographic Differentiation

Question: Can I track whether different audience groups react differently?

Answer: Absolutely. Sentiment Analysis clearly visualizes how different demographic groups respond - always anonymously and in aggregated form - helping you fine‑tune content for each audience segment.

Meet our experts

Take advantage of the opportunity for personal discussions and mentoring with our specialists:

Managing Director

Michael Tschakert

Connect with Michael.

Product Owner

Miklas Bengsch

Connect with Miklas.