How to Organize Conference Interpreting: Step-by-Step

Planning a conference that brings together delegates from different linguistic backgrounds is no small undertaking. Whether you are coordinating a national industry summit in Toronto, a bilingual corporate general assembly in Hamilton, or a hybrid international symposium spanning multiple Canadian cities, the quality of your language access determines whether every attendee can fully participate — or is left out of the conversation entirely. Conference interpreting is the professional discipline that bridges those gaps, but it only works when every logistical detail is planned correctly and far enough in advance. This guide walks you through every stage of the process: from your first language assessment through to on-the-day management, so your event runs without a hitch.

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Step 1: Define Your Languages & Audience Needs

The very first question to answer is deceptively simple: who is coming, and what languages do they speak? The answer shapes every decision that follows, from the number of interpreters you need to the configuration of your booth setup.

Start by mapping your attendee list by primary language. In Canada, many events require at least English and French — official bilingualism means federal government meetings and publicly funded organizations are often legally required to provide both. But a single trade association conference might also draw Portuguese-speaking delegates from Brazil, Mandarin-speaking attendees from mainland China, and Spanish-speaking participants from Latin America. If you want every one of those people to engage fully — to ask questions, follow complex arguments, and participate in workshops — you need working language combinations for each group.

Document the following at this early stage:

Source languages — the languages your speakers and presenters will use on the podium
Target languages — the languages your audience members understand and need to hear interpretation in
Passive languages — additional languages that interpreters in a given booth can work from (important for relay interpreting when no interpreter works directly between two rarer languages)
Estimated number of delegates per language group — this influences receiver quantity and seating logistics

Do not guess. Survey your registered attendees in advance. For large events, even an approximate language breakdown gathered during registration is far more reliable than assumptions. Professional Interpreting Canada works with organizations across the country to assess language needs accurately — we cover more than 200 languages, so even rare or specialized combinations can be accommodated.

Also consider the nature of the content. A highly technical medical symposium presents different interpretation challenges from a diplomatic roundtable or an awards gala. Subject-matter complexity affects which interpreters are suitable and how much preparation time they need.

Step 2: Choose the Right Interpreting Mode

Once you know your languages, you must decide how interpretation will be delivered. The two primary modes for conference settings are simultaneous and consecutive interpreting, and the choice between them has major implications for your budget, schedule, and equipment requirements.

Simultaneous Interpreting

In simultaneous interpreting, the interpreter renders the speaker’s message into the target language in real time, typically with a lag of only a few seconds. Delegates wear wireless receiver headsets and select the channel for their language. The session flows at its natural pace; there is no need to pause for interpretation.

Simultaneous interpreting is the standard mode for large conferences, plenary sessions, international forums, and any meeting where multiple languages must be served at the same time. It is also the most cognitively demanding form of interpreting, which is why it requires a team of at least two interpreters per language pair working in rotation — more on that in Step 4.

The equipment requirement for simultaneous work is significant: soundproofed interpretation booths, interpreter consoles with channel selection, microphones, and wireless receiver systems for delegates. Full details appear in Step 5.

Consecutive Interpreting

In consecutive interpreting, the speaker pauses after each segment — typically a few sentences or a complete thought — and the interpreter then delivers the equivalent passage in the target language. No special equipment is required beyond a standard microphone; interpretation is delivered to the same room.

Consecutive is appropriate for smaller meetings, press conferences, bilateral negotiations, site visits, court proceedings, and any setting where only one target language is needed and the extended running time is acceptable. Because each segment is spoken twice, a session that would take 60 minutes in a single language typically runs 90 to 120 minutes in consecutive mode. For large multi-language conferences, this is usually impractical.

A third option — whispering (chuchotage) — involves the interpreter whispering a simultaneous rendering directly to one or two listeners without any equipment. It is suitable only for very small groups of delegates (generally no more than two or three people) who need a language that the rest of the room does not. It is not scalable and creates noise interference in the main room if used broadly.

For a more detailed breakdown of how these modes differ and when each applies, see our guide on the difference between consecutive and simultaneous interpreting. If your event involves French and English across Canada, our dedicated resource on simultaneous French interpretation in Canada covers the specific requirements you need to know.

Step 3: Book Certified Interpreters Early

Qualified conference interpreters are in high demand, especially for rarer language pairs and technical subject areas. Experienced professionals who hold certification from organizations such as the Association of Translators and Interpreters of Ontario (ATIO) or who are accredited by equivalent provincial bodies across Canada are often booked months in advance for major conference dates. Do not treat interpreter booking as something to finalize once the venue and catering are confirmed — it should be one of your earliest logistics tasks.

As a practical guideline, begin the booking process at least six to eight weeks before a mid-sized event, and three to six months before a large international conference. For very rare language pairs, even longer lead times may be necessary.

When selecting interpreters, prioritize the following qualifications:

Formal certification or accreditation from a recognized body (ATIO in Ontario; equivalent associations in other provinces)
Conference interpreting experience — court or community interpreting experience does not automatically transfer to the demands of simultaneous booth work
Subject-matter familiarity — an interpreter who has worked in your sector (medical, legal, financial, engineering, diplomatic) will produce more accurate and fluent interpretation
Active booth experience — interpreters should be able to demonstrate prior work in the specific mode you require

Professional Interpreting Canada’s certified interpreters and translators are vetted for both credentials and conference-specific experience. Our conference interpretation services cover events of all sizes across Toronto, Hamilton, and nationwide.

Always ask your service provider about professional liability coverage and contingency planning — what happens if an interpreter is unable to attend on the day? Reputable agencies maintain standby rosters for exactly this reason.

Step 4: Team Sizing & Rotation Planning

This is one of the most commonly misunderstood aspects of conference interpreting logistics, and getting it wrong directly affects the quality of interpretation your delegates receive.

The Two-Interpreter-Per-Booth Minimum

Simultaneous interpreting is extraordinarily demanding cognitive work. The interpreter must listen, comprehend, translate, and speak — all simultaneously — while tracking the speaker’s pace, anticipating terminology, and monitoring their own output for accuracy. International professional guidelines, including those published by the International Association of Conference Interpreters (AIIC), establish a clear baseline: a minimum of two interpreters per booth per language direction for simultaneous work.

These two interpreters rotate at the microphone, typically in intervals of 20 to 30 minutes. The active interpreter handles the live rendering while the booth partner follows along, takes notes, assists with terminology lookups, and is ready to take over seamlessly. This rotation is not optional — it is a professional and quality standard. An interpreter working alone for hours at a time will experience significant fatigue, and output quality will decline markedly after the first 30 to 45 minutes.

Calculating Team Size for Your Event

The total number of interpreters required depends on three factors: the number of language pairs, the direction of interpretation in each pair, and the length of the working day.

For a conference with three working languages (for example, English, French, and Spanish), you typically need:

An English booth: interpreters working from French and Spanish into English (at least 2)
A French booth: interpreters working from English and Spanish into French (at least 2)
A Spanish booth: interpreters working from English and French into Spanish (at least 2)

That baseline of six interpreters grows if the working day runs longer than six or seven hours of active interpreting, if the subject matter is particularly dense, or if the pace of delivery is very fast (such as a read speech). For full-day events or sessions with extremely high-density content, three interpreters per booth is often recommended to provide adequate rest and maintain quality throughout.

When your event involves a language for which no interpreter works directly — for example, a Swahili-speaking delegate at a predominantly English-French conference — relay interpreting is used. One interpreter renders the Swahili into a pivot language (often English), and the other booths receive that pivot and relay into their respective target languages. This requires careful advance planning to designate the relay language and assign booth responsibilities accordingly.

Step 5: Equipment — ISO Booths, Consoles, Headsets & RSI Platforms

Equipment is the infrastructure on which simultaneous interpreting runs. Using substandard or non-compliant equipment is one of the most common causes of interpretation quality problems at otherwise well-planned events.

Interpretation Booths: ISO 2603 & ISO 4043

Interpretation booths must meet ISO standards. Two standards govern booths used in conference interpreting:

ISO 2603 — covers permanent (built-in) interpretation booths installed in conference rooms and venues designed for multilingual use. This standard specifies minimum internal dimensions, sound insulation requirements, ventilation, line-of-sight windows, lighting, and the placement of interpreter consoles and cables.
ISO 4043 — governs mobile (portable) interpretation booths, which are the type most often rented and installed temporarily for events held in hotels, convention centres, and other multipurpose venues. Mobile booths must also achieve meaningful acoustic isolation, adequate size for two interpreters and their equipment, proper ventilation, and a clear view window directed toward the podium or main screen.

A critical requirement in both standards is line of sight to the speaker. Interpreters must be able to see the podium, the main presentation screen, and any visual aids being used. A booth positioned behind a pillar, at a steep angle, or with a partially obscured sightline will compromise interpretation quality and is not compliant with professional standards. When evaluating a venue or configuring a temporary booth setup, this must be verified on site before the event.

Booths should be large enough to comfortably seat two interpreters side by side with their reference materials, laptop computers, and note pads. Both interpreters should have access to the console controls without having to reach across each other.

Interpreter Consoles

Each booth is equipped with an interpreter console — the desk unit through which the interpreter monitors the incoming audio (the speaker’s voice), selects the incoming language channel in relay situations, and transmits their interpretation through a microphone. The console includes channel selectors, microphone on/off controls, volume adjustment for the incoming feed, and a relay selector where multiple booth combinations are in use. Consoles must be connected to the venue’s audio distribution system, which routes each booth’s output to the wireless receiver channels used by delegates.

Wireless Receivers & Headsets for Delegates

Every delegate who requires interpretation receives a wireless receiver unit, sometimes called a tour-guide receiver or interpretation receiver. The delegate selects their preferred language channel using a dial or button on the device and listens through a lightweight single-earphone headset. The number of receivers needed should match the number of delegates who require interpretation, plus a reserve of approximately 10 to 15 percent for units that malfunction, require battery replacement, or are needed by late arrivals.

Receivers are typically distributed at registration or at a dedicated equipment desk near the entrance to the conference room, and collected at the end of each session. Designating a technician or volunteer specifically for receiver distribution and collection prevents equipment from going missing.

Remote Simultaneous Interpretation (RSI)

Remote Simultaneous Interpretation (RSI) is an increasingly used alternative to on-site booths, particularly well-suited to virtual or hybrid conferences. Instead of physical booths in the venue, interpreters work from professional remote locations — either dedicated RSI hubs or appropriately equipped home offices — and deliver interpretation through a cloud-based platform. Delegates access the interpretation on their own devices through the same platform or a telephony bridge.

RSI offers genuine advantages for events where bringing interpreters to a single location is impractical, where the participant base is largely remote, or where rapid multilingual scaling is needed. However, it also has requirements that must be met for quality to be maintained: interpreters need a stable, high-bandwidth internet connection; a professional-grade microphone and headset; a quiet, acoustically controlled workspace; and platform-specific technical familiarization prior to the event. The RSI platform itself must provide reliable audio routing, clear channel management, and responsive technical support on the day.

For in-person events with a significant remote attendance component — the hybrid model — a combination is often used: on-site interpreters in ISO-compliant booths serving the room, with the booth audio simultaneously fed to the online platform so remote participants receive the same interpretation. Coordination between the AV team and the RSI platform provider is essential in this setup. To understand more about what interpreting services look like in practice, see our examples of interpreting services.

Step 6: Venue Assessment & AV Coordination

The venue you choose — or the room configuration within a venue — can either support excellent interpretation or create problems that are very difficult to fix on the day. Venue assessment for conference interpreting should happen well before the event, ideally during the site-inspection stage.

What to Check During a Venue Walk-Through

Booth placement options: Is there a location at the rear or side of the room that provides a clear sightline to the podium and screens, with sufficient floor space for temporary booths?
Permanent booths: Does the venue already have installed interpretation booths meeting ISO 2603? If so, confirm the number of booths, their internal dimensions, console specifications, and the date of last service or calibration.
Cable routing: Are there existing infrastructure channels for running audio cables from booths to the AV patch panel, or will cables need to be routed across the floor (a safety risk that requires cable covers)?
Sound quality in the room: Is there significant ambient noise from HVAC systems, kitchen proximity, adjacent event space, or street traffic? High ambient noise makes it harder for interpreters to hear clearly and forces up microphone gain levels, risking feedback.
Ceiling height and acoustics: Very high ceilings with hard surfaces create reverb that makes speech harder to follow; heavily draped or carpeted rooms absorb sound well. Neither extreme is ideal — assess the room acoustically.
Power supply: Confirm that there are adequate power circuits near booth locations for consoles, laptops, and ventilation units.
Internet connectivity: If RSI or a hybrid model is being used, the venue must provide a stable, high-bandwidth, low-latency internet connection — ideally a dedicated wired ethernet connection for interpreters, not a shared conference Wi-Fi network.

Working With Your AV Team

The audiovisual team and the interpretation team must work as a unit, not as separate contractors who meet for the first time on the day of the event. Provide your AV supplier with the number of interpretation channels required, the booth locations, and the delegate receiver distribution plan. Confirm that the AV system can cleanly route the incoming speaker audio to each booth simultaneously, and that each booth’s output is correctly channelled to the receiver distribution system without cross-talk or signal bleed between languages.

Designate a single point of contact — an AV technician — who has responsibility for the interpretation audio feeds during the event. If a booth loses its incoming audio feed mid-session, that technician must be reachable by the interpreter within seconds. Establish a clear communication channel (typically a small headset intercom or a messaging system) between the booths and the AV desk.

Step 7: Prepare & Share Materials and Glossaries in Advance

The single most impactful thing an event organizer can do to raise interpretation quality — beyond hiring the right team — is to provide comprehensive preparatory materials well in advance. Professional interpreters are not simply bilingual speakers; they are subject-matter researchers who prepare intensively for each assignment. The quality of their preparation depends entirely on the quality of the materials you share with them.

What to Provide

Speaker presentations and slides: Even a draft version of slides shared one week before the event is vastly more useful than final slides sent the evening before. Interpreters review slides to identify technical vocabulary, acronyms, product names, and proper nouns (names of organizations, legislation, chemicals, places) that require advance research and terminological preparation.
Speaker scripts or talking points: Not all speakers work from scripts, but for keynote speeches, technical presentations, and formally delivered papers, a text or outline shared in advance allows interpreters to prepare segment-by-segment renderings of particularly dense or technical passages.
Glossaries and terminology lists: If your organization has established terminology — brand names, proprietary acronyms, technical jargon specific to your industry — compile a bilingual or multilingual glossary and provide it to the interpretation team. If you do not have one, ask your interpreters whether they can prepare one with your input; many professional interpreters do this as part of their preparation.
Background documents: Annual reports, policy briefs, legislation references, scientific abstracts, or any background document that contextualizes the content of presentations.
List of speakers with pronunciation guides: Names, titles, and organizational affiliations for every speaker. For names that may be unfamiliar in the target language context, include a phonetic pronunciation guide.
Programme and agenda: A timed agenda so interpreters can plan rotation schedules, anticipate heavy passages (keynote speeches versus Q&A), and flag segments that may require specific preparation.

Aim to share all materials at least five working days before the event. For a very large or technically specialized conference, two weeks is preferable. Materials sent the night before a conference have limited value and put interpreters in a position of under-preparation through no fault of their own.

All preparatory documents should be treated as confidential by the interpretation team, and professional interpreters are bound by codes of professional conduct that require strict confidentiality. If your event involves particularly sensitive content, discuss a non-disclosure agreement with your interpreting service provider at the contracting stage.

Step 8: Agenda Design & Timing

Conference agendas rarely account for interpretation when they are designed. This is a significant planning error that causes cascading problems on the day.

Build Interpretation Time Into Your Schedule

When consecutive interpretation is being used, each segment of speech must be followed by an equivalent period for the interpreter to deliver it. A 20-minute presentation delivered in consecutive mode will take between 30 and 40 minutes in total. If your agenda allocates 20 minutes per speaker and you have six speakers in consecutive mode, the session will run approximately 60 to 80 minutes over schedule. Simultaneous interpretation does not add time to the programme, but it does require slightly more structured handoff at the microphone and at Q&A — allow a few extra seconds for interpreter channel management during question periods.

Schedule Regular Breaks

Interpretation booths need regular breaks. As a general rule, plan for a break of at least 10 to 15 minutes every 60 to 90 minutes of working time, in addition to standard mid-morning, lunch, and mid-afternoon breaks. A four-hour plenary session with no break is not workable for a two-person booth team under any professional standard, regardless of their rotation schedule. Exhausted interpreters produce less accurate output — which means delegates receive less accurate information.

Confirm the break schedule with your interpreting team when you share the agenda. If the programme has unavoidable long stretches, discuss whether a third interpreter in rotation is necessary for that section.

Pace of Delivery Matters

Instruct your speakers on appropriate pacing. A speaker who reads a prepared text at full reading speed — approximately 150 to 180 words per minute — is working at the outer edge of what can be reliably interpreted simultaneously. Speakers who slow to a conversational pace of 100 to 130 words per minute and pause at logical sentence boundaries give interpreters the processing time needed to deliver a complete and accurate rendering. This is not about dumbing down presentations — it is about allowing communication to work. If you have speakers who are known to read quickly, brief them in advance and consider including a note in speaker guidance documents.

Step 9: Tech Checks & Rehearsals

A full technical check — with interpreters present in the booths, audio routed, receivers distributed to test positions in the room, and a speaker at the podium — is not optional. It is the only way to verify that the system works as configured before delegates arrive. Schedule the technical check on the day before the event if possible, or at minimum two hours before the first session begins.

What the Tech Check Should Cover

Incoming audio to each booth: Every booth must clearly receive the speaker’s voice at an appropriate level without distortion, background noise bleed, or dropouts.
Outgoing interpretation audio: Each booth’s interpreted output must be correctly routed to the designated language channel on the receiver distribution system. Verify this by switching a test receiver to each channel while a booth interpreter speaks.
Relay routing: If relay interpreting is being used, confirm that the relay feed — the pivot language output from one booth — reaches the intended relay booths correctly.
Receiver battery levels and channel lock: Fully charged receivers should be set to the correct channel range before distribution. Confirm that the channel scanning range on receivers covers all languages being used.
Visual sightlines from each booth: Verify that every booth has a clear, unobstructed view of the podium and the main presentation screen. Adjust booth orientation if needed.
Ventilation and lighting in booths: Confirm that booth ventilation is functioning and quiet, and that lighting inside the booth is sufficient for reading reference materials without creating a glare on the window.
Communication between booths and AV desk: Test the intercom or messaging channel between the AV technician and the booths.
RSI platform connection (if applicable): Test the internet feed, audio quality on the platform, and the interpreter and delegate interfaces end-to-end.

Where your event includes a rehearsal or speaker run-through, invite the interpretation team to participate. This gives interpreters exposure to each speaker’s delivery style, voice, accent, and vocabulary — an invaluable preparation that pays dividends during live sessions.

Step 10: On-the-Day Management

With thorough preparation completed, the day itself should run smoothly — but it still requires active coordination. Assign a dedicated interpretation liaison: a staff member or event coordinator whose role is to serve as the point of contact between the interpretation booths, the AV team, and conference management throughout the day.

Before Each Session

Confirm that all interpreters are in their booths and systems are active at least 15 minutes before the session begins
Ensure all delegate receivers have been distributed and channel selection has been communicated to attendees (typically through a note in delegate packs or a brief announcement at the start of each session)
Confirm that any last-minute speaker changes or programme adjustments have been communicated to the interpretation team — changes to speaker order can require rapid terminology gear-shifts

During Sessions

The interpretation liaison should be reachable by booth intercom or message throughout each session
Monitor the auditorium for delegates who appear to be having difficulty with their receivers (e.g., holding the unit up or looking confused) and address quickly before it disrupts the session
Remind moderators and chairs that Q&A questions from the floor should also be directed through the microphone system — interpretation cannot function if floor questions are shouted out from a distance without amplification
If a speaker goes significantly off-script or begins reading at an extremely high speed, a quiet backstage or moderator signal to slow down is appropriate

Breaks and Handovers

Ensure breaks are respected — do not allow sessions to run long into scheduled break time without consulting with the booths
If the programme runs significantly over schedule, the interpretation team may need to renegotiate team coverage or rest time; communicate schedule changes proactively rather than reactively

Step 11: Accessibility Considerations

Language access is itself an accessibility measure, but conference interpreting events should also consider how the interpretation setup intersects with other accessibility needs.

Delegates who are deaf or hard of hearing: Simultaneous interpretation via wireless receivers does not serve delegates who require sign language interpretation. If you have attendees who use ASL (American Sign Language) or LSQ (Langue des signes québécoise), sign language interpreters must be booked separately and positioned visibly at the front of the room. Sign language interpreters also work in pairs and require rotation on a schedule similar to spoken-language simultaneous interpreters.
Receiver accessibility: Standard single-ear interpretation headsets can be difficult for some delegates to manage. Confirm that inductive loop compatibility or alternative audio output options are available from your equipment supplier for delegates with hearing aids or cochlear implants.
Seating for delegates using receivers: Ensure that aisles are clear and that delegates who need to change batteries or return malfunctioning receivers can do so without disrupting others. Position the receiver exchange desk just outside or at the rear of the conference room.
Language and cognitive accessibility: For events serving delegates with diverse levels of literacy or formal education, discuss with your interpretation team whether plain-language delivery or specific terminological adaptation is appropriate for any sessions.

For organizations operating under Canadian accessibility legislation, providing language access through professional interpretation is often both an ethical obligation and a legal one. Professional Interpreting Canada’s certified Toronto team can advise on how to structure language access for events that must meet specific accessibility standards.

Common Mistakes to Avoid

Even experienced event organizers make avoidable errors when planning conference interpreting for the first time — or when planning an event significantly larger or more complex than previous ones. Here are the most frequent and consequential mistakes.

Booking a single interpreter for simultaneous work: One interpreter cannot sustain simultaneous interpretation quality beyond a short period. A solo simultaneous interpreter is a professional standards violation and will produce declining accuracy. Always book teams of two minimum, three for long or dense sessions.
Confusing bilingual staff with professional interpreters: A bilingual employee or volunteer can manage brief introductions or social exchanges. They are not equipped for the sustained cognitive and terminological demands of conference interpretation. Using unqualified individuals as interpreters exposes your organization to miscommunication, potential liability, and reputational damage.
Choosing non-ISO-compliant booth equipment: Tabletop booths that do not achieve proper sound isolation place interpreters in a noisy, stressful working environment and allow the interpretation to bleed into the main room. Always specify ISO 4043-compliant portable booths when permanent installations are not available.
Withholding materials until the day before: Preparatory materials sent the evening before a conference or on the morning of the event deprive interpreters of the preparation time they need. The result is more frequent terminology gaps, longer search pauses, and less fluent output.
Failing to brief speakers on pacing: Fast readers and rapid-fire presenters are one of the most consistent sources of interpretation quality problems. A brief note to speakers about recommended pace is easy to include and makes a substantial difference.
No dedicated interpretation liaison on the day: When something goes wrong with audio routing or a receiver, the interpretation team needs to reach someone with authority to fix it immediately. An event without a designated interpretation point-of-contact will resolve problems slowly, with disruption to delegates.
Skipping the technical check: Every venue and every equipment configuration has variables. What was confirmed in writing is not the same as what has been physically tested. The technical check catches problems while there is still time to fix them.
Ignoring Q&A interpretation logistics: Plenary presentations are often well-planned from an interpretation standpoint; Q&A sessions are not. Establish floor microphone procedures in advance: every question must be spoken into a microphone for the booth to receive it. Appoint microphone runners if the room configuration requires it.
Under-ordering receivers: Running out of receiver units mid-session forces delegates to share or go without interpretation. Order receivers for the full expected audience in the languages required, plus your buffer reserve.

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Conference Interpreting Planning Checklist

Use this checklist as a working document from your first planning meeting through to the day after the event.

Three to Six Months Before (Large Events) / Six to Eight Weeks Before (Smaller Events)

Survey registered delegates for language requirements
Identify all source and target languages; determine if relay interpreting will be needed
Decide on interpreting mode: simultaneous, consecutive, or hybrid
Contact a professional interpreting service provider to confirm interpreter availability for your dates & language combinations
Book your certified interpreter teams — two minimum per language pair for simultaneous, more for full-day events
Confirm whether RSI or on-site booths are required; determine equipment rental needs
Select a venue with appropriate booth space or confirm that mobile booths can be installed

Four to Six Weeks Before

Conduct a venue site inspection with interpretation requirements in mind: sightlines, acoustics, power, internet
Confirm AV supplier is briefed on interpretation channel count, booth location, and cable routing requirements
Provide interpreters with the full programme, speaker biographies, and any available background documents
Request speaker presentations and talking points; set a deadline for receipt
Compile or request bilingual/multilingual glossaries for technical or sector-specific terminology
Determine receiver quantity needed; confirm equipment rental or purchase

One to Two Weeks Before

Share all speaker slide decks & scripts with interpreters
Confirm final programme and timing with interpretation team; flag any long sessions requiring a third interpreter
Send speaker guidance on pacing and microphone discipline
Confirm break schedule with all parties
Verify RSI platform access credentials and conduct a preliminary connectivity test (for hybrid/virtual events)
Designate your interpretation liaison for the day
Confirm contingency plan with your provider

Day Before

Complete installation of mobile booths if required
Full technical check with interpreters in booths: incoming audio, outgoing channels, relay routing, receiver channels, RSI platform
Verify sightlines from each booth
Confirm ventilation and lighting inside each booth
Test booth-to-AV intercom communication
Charge all receiver units; confirm adequate supply
Brief front-of-house staff on receiver distribution and Q&A microphone procedure

Day of Event

Interpreters in booths at least 15 minutes before each session
Receivers distributed at entry; channel guide included in delegate packs
Interpretation liaison stationed and reachable throughout the day
Announce interpretation channels and receiver availability at the start of each plenary session
Monitor breaks; ensure they are taken on schedule
Communicate any speaker changes or programme adjustments to booths immediately
Collect receivers at end of each session; check for damage or missing units

After the Event

Return rented equipment promptly and in good condition
Debrief with your interpretation team: were there terminology gaps or audio issues that should inform future events?
Collect delegate feedback on interpretation quality via post-event survey
Document lessons learned for the next edition of the event

Frequently Asked Questions About Conference Interpreting

How far in advance do I need to book conference interpreters?

For large international conferences, begin the booking process three to six months in advance, particularly if you need rare language pairs or a large number of interpreters. For smaller events with common language combinations, six to eight weeks is generally sufficient, though earlier is always better. Qualified conference interpreters — especially those with ATIO certification and sector-specific experience — have full schedules, and the best professionals are the first to be booked.

How many interpreters do I need for my conference?

The baseline is a minimum of two interpreters per language pair for simultaneous interpreting. For a conference with English, French, and Spanish as working languages, that means at least six interpreters — two in each booth. For full-day events (more than approximately six hours of active interpreting), three per booth is advisable. For consecutive interpreting covering a single language pair, one interpreter may be appropriate for shorter or lighter sessions, but complex half-day or full-day engagements benefit from two. Your interpreting service provider can assess your specific programme and recommend appropriate team size. Learn more about our conference interpretation services.

What is the difference between ISO 2603 and ISO 4043?

ISO 2603 applies to permanent interpretation booths that are built into a conference room or facility as part of its architecture. ISO 4043 covers mobile or portable booths — the kind that are assembled and installed temporarily for events in hotels, convention centres, and multipurpose halls. Both standards set minimum requirements for booth dimensions, sound insulation, ventilation, sightlines, lighting, and console placement. When renting temporary booths, always confirm that the equipment meets ISO 4043.

Can I use RSI for an in-person conference?

RSI is primarily designed for virtual and hybrid events, but it can be adapted for in-person conferences in certain circumstances — for example, when a specific language combination requires an interpreter who cannot travel to the venue, or when the event is a hybrid with a large remote participation component. For purely in-person conferences, on-site booths generally provide more reliable audio quality and give interpreters better direct access to the room’s acoustic environment and visual cues. Discuss your specific setup with your interpreting provider to determine the most appropriate approach.

What documents should I provide to conference interpreters in advance?

Provide all available speaker presentations and slide decks, speaker scripts or talking points, a bilingual or multilingual glossary of technical or sector-specific terminology, background documents contextualizing the event content, a list of all speakers with their titles and organizational affiliations, phonetic guides for unusual names, and a timed programme agenda. Aim to share materials at least five working days before the event; two weeks or more is preferable for technically specialized content.

What happens during Q&A when multiple languages are in use?

Q&A sessions require the same interpretation infrastructure as main presentations, but they are often more challenging because questions come from different parts of the room, are asked by people without microphone experience, and can span multiple languages if delegates speak in different languages. Best practice is to appoint microphone runners who bring a floor microphone to each questioner; all questions must be spoken into the microphone before the moderator relays them. If delegates may pose questions in languages other than the main working languages, alert the interpretation team in advance so that appropriate relay coverage can be arranged.

Do interpreters handle sign language as well?

Spoken-language conference interpreters and sign language interpreters are distinct specializations. If your event requires interpretation into ASL (American Sign Language) or LSQ (Langue des signes québécoise), you must book sign language interpreters separately. They are positioned visibly at the front of the room and also work in pairs with rotation schedules comparable to those of spoken-language simultaneous interpreters. Professional Interpreting Canada can assist with coordinating both spoken-language and sign language coverage for the same event.

How do I handle last-minute speaker changes on the day?

Notify the interpretation team immediately when a speaker change occurs. If a speaker is being replaced by someone covering materially different content or a different specialized subject area, the interpreters need to know as soon as possible so they can adjust their active terminology preparation. If you have provided preparatory materials for the original speaker, provide any available materials for the replacement speaker promptly. Designating an interpretation liaison whose role includes rapid communication of programme changes is the most effective way to handle day-of adjustments.

What languages does Professional Interpreting Canada cover?

Professional Interpreting Canada provides conference interpretation in more than 200 languages, covering common combinations such as English-French for federal & provincial requirements, major international languages including Spanish, Mandarin, Arabic, Portuguese, German, Italian, Japanese, Korean, and Russian, as well as less common languages where specialist interpreters are available. Contact us to confirm availability for your specific combination and to receive a tailored quote for your event.

What is the difference between a conference interpreter and a certified translator?

A conference interpreter works orally and in real time, converting spoken language from one language to another during live events. A certified translator works with written text, producing a written translation of a document that is reviewed, revised, and certified for accuracy before delivery. Many professionals hold both qualifications, but the two roles involve distinct skill sets and are used in different contexts. For events that involve both live interpretation and document translation — such as multilingual conferences that also produce bilingual records, published proceedings, or translated delegate materials — both services may be required. Our certified translator team in Toronto and our certified interpreters and translators service page cover both needs.

Ready to start planning your conference interpreting needs? Request a free quote from Professional Interpreting Canada — our team will assess your language requirements, recommend the right team configuration, and help you build an interpreting plan that works for your event, your venue, and your timeline. We serve organizations across Toronto, Hamilton, and Canada-wide with certified professionals in more than 200 languages.