On May 16, the Seattle Changbal Dev Conference brought together developers, founders, researchers, and technology leaders for a full day of technical talks and networking.

The event featured eight presentations delivered primarily in Korean. However, nearly 30% of attendees were English speakers.

For the organizers, this created a familiar challenge:

How do you make technical content accessible to a multilingual audience without adding interpretation booths, expensive equipment, or a dedicated operations team?

At many conferences, solving this problem requires interpreters, specialized hardware, separate displays, and additional staff.

At Changbal Dev Conference, the solution was much simpler.

The entire event ran with real-time English subtitles using only the presenter’s MacBook and BizCrush.

Event at a Glance

• 8 Korean-language presentations

• 30% English-speaking attendees

• 1 MacBook running BizCrush

• 1 event operator

• 0 interpretation booths and dedicated subtitle staff

The result was a fully bilingual conference experience without changing the event's existing setup.

Why Real-Time Translation Is Difficult at Developer Conferences

Developer conferences create a unique challenge for real-time translation systems.

Unlike traditional business meetings, presentations often include:

• Rapid speaker pacing

• Technical terminology

• Mixed Korean and English expressions

• Code snippets and pseudocode

• Product names and proper nouns

• Live audience questions

• Frequent topic switching

Many translation solutions struggle in these environments.

Common issues include:

• Subtitle delays that disrupt the flow of the presentation

• Incorrect translation of technical terms

• Complex audio infrastructure requirements

• Additional staffing needs

• Attendee-side app installation requirements

The Changbal organizers wanted to create an experience where global attendees could follow every session without increasing operational complexity.

Running the Entire Event from One MacBook

BizCrush approached the problem differently.

Instead of requiring dedicated interpretation infrastructure, the presenter simply connected their MacBook to the venue display and enabled Presentation Overlay Mode.

Real-time English subtitles appeared directly over the presentation slides.

• No secondary display was needed.

• No interpretation booth was needed.

• No separate subtitle operator was needed.

The subtitles remained stable throughout slide transitions and animations while preserving the overall presentation design.

One of the most impressive parts of the event was how simple the operation became. The entire subtitle workflow was managed directly by Changbal President Hyesun An.

After a brief walkthrough, she was able to:

• Start and stop sessions

• Adjust subtitle placement

• Manage presenter transitions

• Monitor recordings

• Keep the conference running smoothly

without requiring technical assistance.

For community-driven events with limited staffing, this simplicity proved just as important as the translation itself.

Translation Quality That Held Up on Stage

The conference covered a wide range of topics, from software engineering and AI to startup building and developer productivity.

During one session, Ju An Kang, Senior Software Engineer at Microsoft, delivered a Korean-language presentation rich in nuanced explanations and references. English-speaking attendees were able to follow the presentation in real time through the subtitles displayed on the main screen.

Another session featured Minseok Jeong discussing highly technical topics, including Reflection-Augmented Scaling, algorithm design, and pseudocode structures.

Rather than producing literal word-for-word output, BizCrush generated subtitles that preserved the technical context of the discussion.

Even in situations involving:

• Technical jargon

• Mixed-language speech

• Fast presentation speed

• Audience participation

• Product-specific terminology

The subtitles remained consistent and readable throughout the sessions.

Capturing Context, Not Just Words

One moment particularly stood out to the event organizers.

During a presentation, a uniquely Korean expression appeared that would have sounded awkward if translated literally.

Instead of forcing a direct translation, BizCrush preserved the original phrase and presented it in a way that maintained its cultural context.

After the event, the operations team commented:

"It preserved the nuance of unique Korean proper nouns without distortion."

For global audiences, this distinction matters. Good subtitles do more than convert speech from one language into another. They help preserve the speaker's intent, context, and meaning.

No Wireless Microphones. No Audio Mixers.

Another standout for attendees was BizCrush's speech recognition.

The event did not rely on wireless microphones for audience participation.

Questions from attendees were often asked directly from their seats.

Even so, BizCrush was able to recognize and subtitle audience questions using only the MacBook's built-in microphone.

This flexibility makes the system particularly useful for community events, hackathons, university programs, startup demo days, and meetups where professional AV infrastructure may not be available.

The Feature Everyone Asked About

Throughout the conference, organizers repeatedly received the same question from attendees:

"What tool is generating those subtitles?”

Many participants noticed the subtitles almost immediately.

Some assumed a dedicated translation team was operating behind the scenes. Others were surprised to learn that the entire system was running from a single laptop.

For the organizers, this reaction validated an important point:

When multilingual support becomes effortless, it stops feeling like an extra feature and starts feeling like a natural part of the event experience.

What's Next: Seattle Changbal Innovation Hackathon

Following the success of the conference, the Changbal team plans to continue using BizCrush at future events.

Attendees will also be able to experience BizCrush again at the upcoming Changbal Hackathon in Seattle on June 20.

To support teams building voice-powered products, all participants will receive BizCrush Voice API credits during the event.

The team that creates the most impactful voice application using BizCrush technology will receive the BizCrush Best Problem Solver Award, along with one year of unlimited BizCrush access for every member of the winning team.

Making Global Events Practical

Global audiences are no longer limited to large enterprise conferences.

Today, multilingual communities exist everywhere:

• Developer meetups

• Startup demo days

• University programs

• Hackathons

• Technical workshops

• Community-led events

The challenge is no longer whether multilingual experiences are needed. The challenge is making them practical.

At the Seattle Changbal Dev Conference, organizers delivered a fully bilingual experience with one laptop and no specialized interpretation infrastructure.

As global participation becomes the norm, we believe that simplicity will become the new standard for event communication.

And that's exactly what BizCrush is building.