Simultaneous interpreting at conferences: how to organize an international event without language barriers

An international conference can bring together hundreds of participants from dozens of countries, including leading experts, business representatives, and representatives of international organizations. However, simply gathering people in one room is not enough for a truly professional dialogue. It is essential to ensure conditions in which every participant can fully understand the speakers, join in discussions and exchange views, regardless of the language spoken.

It is precisely this opportunity that professional simultaneous conference interpreting provides. At the same time, organizing it is a far more complex process than it might seem at first glance. From the right choice of interpreters and language channels to the layout of the booths and the quality of the audio signal — every detail affects the outcome.

Let’s look at how to organize interpreting for an international conference, what technical and organizational arrangements are needed, and what to pay attention to to ensure the language services run flawlessly.

1. Simultaneous interpreting as an integral part of a successful international conference

Organizers of international events devote considerable attention to the program, the selection of speakers, the venue, the meeting protocol, and the technical setup of the conference hall. However, even a large-scale event with high-profile participants can lose some of its value if attendees do not understand the presentations by foreign experts.

This problem is particularly acute during panel discussions, when it is not only the content of the prepared presentation that matters but also the panelists' live reactions. Questions from the audience, clarifications, arguments and objections arise spontaneously. If a language barrier hinders such an exchange, the international conference effectively turns into a series of separate presentations.

Simultaneous interpreting allows the natural flow of communication to be maintained. The interpreter conveys the content of the speech in another language almost simultaneously with the speaker, whilst participants listen to the interpretation via individual headphones.

This enables foreign delegations to participate fully in discussions, whilst organizers do not have to significantly extend the event's duration due to the need to translate every remark consecutively.

There is also a less obvious aspect. The ability to listen to a presentation in one’s native language or a language one is very familiar with reduces the additional mental strain on the audience. This is particularly important during lengthy scientific, legal, or technical conferences, where even a minor misunderstanding can alter the perception of the information presented.

Therefore, professional simultaneous interpreting is not merely a convenience for foreign guests, but an essential tool for ensuring equal participation in international dialogue.

2. How simultaneous interpreting works: from the speaker’s address to the participant’s headphones

At first glance, the system seems quite simple: the speaker speaks in one language, and the participant hears the speech in another. In reality, however, there is a complex interplay between interpreters, sound equipment and the audio distribution system.

During a traditional conference, interpreters are situated in special soundproof booths. They receive the speaker’s voice through headphones whilst simultaneously observing the speaker's speech and presentation, and the audience’s reaction.

The interpreter does not simply repeat individual words mechanically. Their task is to quickly grasp the message's meaning, understand the logic of the statement, and formulate the corresponding idea in another language.

For example, an English-speaking speaker may use a complex sentence structure, the main point of which is only revealed at the end of the sentence. The interpreter must take into account grammatical differences between languages without distorting the information or causing excessive delay.

The interpretation usually lags behind the original by a few seconds. Such a delay is a natural part of professional practice.

The final audio signal is transmitted via the interpreter’s console to the language channel system, from where it is fed to the participants’ individual receivers.

How is multilingual interpreting organized?

Let’s imagine a conference featuring Ukrainian, English and German speakers. To provide interpreting, it is necessary to determine which languages the speakers can use and which language channels the audience requires.

In more complex multilingual set-ups, interpretation via an intermediate language — known as relay interpreting — is possible. For example, a speech is first interpreted into English, and another booth uses this interpretation to convey the content in German. This approach requires careful planning, as it adds an extra link in the chain of information transmission.

Equally important is ensuring the interpreters work under the right conditions. Due to the intense mental strain involved, they usually work in pairs, taking turns approximately every 20–30 minutes.

Consequently, high-quality simultaneous interpreting relies not only on linguistic competence, but also on the professional organization of teamwork and technical infrastructure.

3. For which international events is simultaneous interpreting required

The need for simultaneous interpreting is determined less by the number of participants than by the format of international communication.

For a brief meeting between two delegations, consecutive interpreting is sometimes sufficient. However, when an event has a packed program, several working languages and a significant number of presentations, the simultaneous format becomes practically essential.

International economic and investment forums. At such events, financial indicators, market prospects, investment risks and strategic decisions are discussed. Interpreters must accurately convey economic terminology, numerical data and specialist concepts.

Diplomatic conferences and international summits. The accuracy of phrasing is of particular importance. In a diplomatic context, even a slight nuance in a statement can influence how the speaker’s position is perceived.

Scientific and technological congresses. Such events are characterized by complex terminology, the presentation of research findings, the use of abbreviations and rapid changes in subject matter.

Medical and legal conferences. Here, it is important not only to know a foreign language, but also to understand professional concepts, classifications, procedures and differences in terminology between countries.

Events organized by international organizations, charitable foundations and NGOs. International partners often discuss humanitarian programs, infrastructure reconstruction, grant funding and cooperation with government bodies. Effective communication directly impacts the outcome of such meetings.

Corporate conferences organized by international companies constitute a separate category. Their participants may work for the same organization but represent different countries and linguistic backgrounds.

In any of these cases, the choice of interpreting format must take into account the actual communication needs, rather than merely the status or scale of the event.

4. Preparing for a multilingual conference: what the organizer needs to plan for

The most important decisions regarding simultaneous interpreting are made even before the equipment is set up, and the interpreters arrive.

Preparations should begin with drafting the conference’s language plan — a document specifying the working languages, translation directions, the number of rooms, and the language requirements of the participants.

For example, if all speakers are to speak in English and part of the audience requires Ukrainian interpretation, the organizational structure will be relatively straightforward.

However, if participants may speak in Ukrainian, English and French, and the audience requires all three language channels, the configuration of the team and equipment will be considerably more complex.

The next step is to analyze the event program.

It is worth finding out whether there will be parallel sessions, how long the presentations will last, whether there will be open discussions, and how questions from the audience will be organized. It is these details that determine the need for interpreters and technical resources.

Particular attention must be paid to the preparatory materials.

Even a highly qualified interpreter cannot be equally well-versed in the terminology of nuclear energy, medical law, international taxation and digital technologies.

It is therefore advisable for the organizer to provide the program, presentations, speaking notes, the names and titles of the speakers, company names, professional abbreviations and specialist vocabulary in good time.

This enables interpreters to familiarise themselves with the terminology, clarify the meanings of complex concepts and prepare appropriate glossaries.

The layout of the conference venue is also important. It is necessary to identify locations for interpreting booths, check the stage view, agree on connections to the sound system, and ensure that technical support is available.

Separately, the procedure for making changes to the program should be agreed. If a speaker postpones their presentation, changes the language of their speech or participates remotely, the language support team must be informed in advance.

The earlier interpreters and technical specialists are involved in the planning, the fewer decisions will need to be made under time pressure immediately before the conference.

5. Simultaneous interpreting equipment: what is needed for high-quality sound

The quality of simultaneous interpreting depends on how accurately and continuously the audio signal is transmitted.

An interpreter may have many years of experience and thorough knowledge of terminology. Still, no amount of professional training can compensate for a lost section of a speech due to a faulty microphone.

That is precisely why technical support must be regarded as an integral part of language services.

Interpreting booths. For traditional conferences, special soundproofed structures are used to ensure suitable acoustic conditions. Interpreters must have a clear view of the speakers and the presentation screen.

Interpreting consoles. These allow interpreters to control the microphone, adjust volume, select audio sources, and transmit the interpretation to the designated channel.

Transmitters and receivers. These ensure the translation is delivered to the audience. For multilingual conferences, systems with a choice of language channels are used.

Headphones. These must ensure sufficient speech intelligibility and comfort during prolonged use.

Conference microphones and audio systems. It is through these that interpreters receive speeches, audience questions, and comments from moderators.

Professional technical planning takes into account not only the number of devices, but also the compatibility of the equipment, the acoustic characteristics of the venue and potential sources of interference.

There are international standards for interpreting booths and technical equipment, including ISO 2603, ISO 4043, ISO 20109 and ISO 22259, which cover various aspects of working conditions and equipment for simultaneous interpreting.

It is also important to understand the difference between large conferences and smaller meetings.

Portable systems are sometimes used for smaller events, though their suitability depends on noise levels, confidentiality and the duration of the event. A large-scale conference with a packed program usually requires a full-scale infrastructure with interpreting booths.

Technical testing is an essential step. It involves checking not just the functionality of individual devices, but the entire signal path — from the speaker’s microphone to the participant’s headphones.

Hiring simultaneous interpreting equipment, together with technical support, allows the organizer to avoid coordinating complex technical processes themselves.

6. Selecting interpreters for an international conference: professional criteria

Simultaneous interpreting requires a specialist to possess a unique combination of linguistic, analytical and psychological skills.

The interpreter simultaneously listens, analyses information, anticipates the speaker’s thought flow, and speaks in another language. All this takes place without the option to pause the speech.

Therefore, the selection of a team should not be limited to testing knowledge of foreign languages.

The first criterion is practical experience in simultaneous interpreting. Working in a booth differs significantly from written translation or ordinary bilingual communication.

The second is sector-specific expertise. For an international legal forum, it is important to understand the differences between legal systems; for a medical conference, to be familiar with professional terminology; and for an investment event, to be well-versed in financial concepts.

The third is suitability for specific language pairs. An interpreter who works professionally from English into Ukrainian does not necessarily have the same qualifications for simultaneous interpreting in the reverse direction.

Teamwork is of great importance. During lengthy events, interpreters usually work in pairs, and their effectiveness depends on consistent terminology, mutual support and a fair distribution of the workload.

There is also the issue of professional ethics.

Conferences may involve discussions of trade secrets, non-public financial data, diplomatic matters or confidential research findings. In such circumstances, appropriate non-disclosure agreements must be put in place.

However, even the best team needs preparation. Familiarising themselves with the program and materials in advance helps interpreters to focus on accurately conveying the content, rather than searching for the meaning of unfamiliar terms whilst the speaker is talking.

Professional selection of interpreters is, first and foremost, about suitability for a specific task, rather than a formal list of languages the specialist speaks.

7. Simultaneous interpreting for online and hybrid conferences: technologies and key features

The geographical scope of an international event is no longer limited to the conference venue.

Speakers can deliver their presentations from different countries, participants can join remotely, and organizers can combine in-person attendance with a live online broadcast.

Remote Simultaneous Interpreting (RSI) is used for such events.

Interpreters work via specialized technology platforms or video conferencing systems that support language channels. They receive the original audio and video feed, and then relay the interpretation to remote participants.

This format makes it possible to engage specialists from different countries without the need to organize their travel.

However, remote interpreting has its own technical requirements.

First and foremost, a stable internet connection and a high-quality audio signal must be ensured. Using a laptop’s built-in microphone in a noisy room can significantly complicate the interpreter’s work.

The video feed is no less important. Facial expressions, gestures, and presentation materials help to interpret a speech correctly, especially during complex discussions.

Hybrid conferences add a further layer of complexity: the interpretation must be accessible to both the in-person and online audiences simultaneously.

For example, a question from a remote participant must be relayed to the conference hall to ensure it reaches the interpreters. Then the interpretation must be correctly distributed to all listeners.

For this reason, the technical setup for a hybrid event must include clear audio signal routing and coordination between moderators.

Before the conference begins, it is advisable to conduct a full-scale rehearsal involving interpreters, speakers and the technical team.

The remote format can reduce logistics costs, but it is no substitute for professional planning. Its effectiveness depends on the right choice of platform, the quality of the connection and preparedness for potential technical glitches.

8. Common mistakes when organizing simultaneous interpreting and how to avoid them

Most problems with simultaneous interpreting can be prevented before the conference even begins. Moreover, the most common mistakes are often not related to the interpreters’ work, but to an underestimation of organizational details.

Booking interpretation at the last minute. It takes time to find qualified interpreters, especially when dealing with rare languages or specialized subject matter. Late bookings also limit the choice of equipment.

Lack of presentations and materials. Unfamiliar terminology, specific abbreviations and complex technical concepts can pose difficulties even for experienced interpreters. Providing materials in good time reduces the risk of inaccuracies.

Poor positioning of interpreting booths. If an interpreter cannot see the speaker or the presentation, they miss some context. Therefore, the placement of booths must be planned in conjunction with the stage and auditorium layout.

Insufficient number of receivers. Organizers sometimes only consider registered international guests, forgetting about moderators, delegation representatives, or other participants.

Lack of backup technical solutions. For large conferences, it is advisable to provide spare microphones and receivers, as well as the ability to quickly resolve any sound transmission issues.

Uncoordinated discussion rules. If several speakers speak at the same time, even the best interpreter will be unable to fully convey all remarks. Moderators must control the order of speeches and the use of microphones.

The issue of changes to the program deserves special attention. An additional session, a new presentation language, or moving a discussion to another room may require the entire interpreting system to be reorganized.

Therefore, professional organization involves not only a well-prepared plan but also a clear procedure for dealing with unforeseen situations.

The key indicator of high-quality work is when participants can focus entirely on the discussion without being distracted by linguistic or technical difficulties.

9. What determines the cost of simultaneous interpreting for an international conference

The cost of simultaneous interpreting is determined on a case-by-case basis, as every international event has its own program, language structure and technical requirements.

The first factor is the number of working languages. For a bilingual conference, a single interpreting booth or team may suffice, whereas a multilingual forum will require more complex organization.

The second factor is the duration of the event. A full conference day, several parallel sessions or a multi-day program all affect the number of interpreters required and the overall workload.

The third is the subject matter. Highly specialized legal, medical or technical conferences require a more careful selection of specialists and appropriate training.

Technical support can account for a significant portion of the budget: interpreting booths, consoles, transmitters, receivers, headphones, installation and technical support.

For off-site conferences, additional costs such as equipment delivery, transport, accommodation, and other logistical matters must also be taken into account.

When comparing commercial quotes, it is important to clarify exactly what is included in the quoted price.

For example, one quote may cover only the interpreters’ services, whilst another may include a full set of equipment, system configuration and the presence of a technical specialist.

A low initial price does not always mean a lower total project cost.

The best way to optimize your budget is to identify the conference’s actual needs before commissioning services. This helps you avoid unnecessary equipment, correctly determine the team size and minimize unforeseen costs.

10. Organizing simultaneous interpreting with STATUS KO: comprehensive support for international events

Organizing an international conference requires a focus on the program, speakers, participants, and the outcomes of the upcoming meetings. Language support should facilitate these objectives, rather than placing an additional burden on the organizers.

The STATUS KO Translation Center provides simultaneous interpreting services for international conferences, forums, business meetings, professional congresses, and other events involving foreign guests.

We treat each project individually, taking into account the format, subject matter, language combinations, number of participants and technical requirements.

Preparation begins with a consultation. The client provides key information about the event, after which the required language pairs, the composition of the interpreting team and equipment requirements are determined.

Depending on the conference’s requirements, a comprehensive solution may include:

• the selection of professional simultaneous interpreters with the relevant specialization;
• planning of language channels and the interpreting layout;
• arranging the hire of the necessary equipment;
• coordination of technical requirements with the conference venue;
• preparing interpreters using the client’s materials;
• coordination of language and technical support for the event.

This form of collaboration is particularly suitable for international organizations, businesses, event agencies, and corporate clients who require a predictable outcome and a clear division of responsibilities.

Are you planning an international conference, forum or business meeting with foreign partners?

Contact the STATUS KO Translation Center. Please provide the date, venue, working languages, event format and estimated number of participants.

We will help you select the best language support solution, identify the necessary technical resources, and prepare a bespoke quotation.

STATUS KO — professional simultaneous interpreting for international events where every word counts.

11. FAQ — Frequently asked questions about simultaneous interpreting at conferences