A conference can have excellent speakers, sharp presentation slides and a full room, yet still fall flat if delegates cannot hear every word. Knowing how to set up conference microphones means planning for the room, the speakers and the way the event will actually run – not simply placing a microphone on a lectern and turning it on.
For most corporate conferences, the aim is natural, clear speech at a comfortable volume. The system should support presenters without drawing attention to itself. That takes the right microphone type, sensible placement, a properly positioned loudspeaker system and a thorough sound check before guests arrive.
Start with the room and running order
Before choosing microphones, assess the space. A small boardroom with 20 people has very different requirements from a hotel ballroom, exhibition venue or theatre-style conference for 300 delegates. Room size, ceiling height, soft furnishings and background noise all affect how much sound reinforcement is needed.
Look at where the audience will sit, where presenters will stand and whether there are fixed features that create noise or restrictions. Air conditioning vents, catering areas, glass walls and busy corridors can all make speech harder to hear. A wide room may need loudspeakers on both sides, while a long room may need delay speakers further back so people in the rear do not receive a noticeably later sound.
The running order matters just as much. Count the people who may need a microphone at the same time, not simply the number of speakers on the agenda. A panel of four with a moderator needs five active channels. If a host introduces speakers from the floor while a panellist remains on stage, that may require an additional microphone.
Ask practical questions early: Will presenters take questions? Will anyone move around the stage? Are video calls, recordings or a live stream involved? Will there be audience participation? These details determine the right setup and avoid last-minute changes.
Choose the right conference microphone setup
There is no single best microphone for every conference. The right choice depends on how speakers present and how much freedom of movement they need.
Lectern microphones
A gooseneck microphone is usually the simplest option for a fixed lectern. It keeps the stage tidy and allows the speaker to refer to notes while keeping both hands free. Position the microphone around 15 to 25 cm from the speaker’s mouth, pointed towards them rather than straight upwards.
A flexible gooseneck should be adjusted before each presentation, especially when speakers vary in height. Encourage presenters not to move it repeatedly once they begin, as this can cause handling noise and changes in level.
Handheld wireless microphones
Handheld wireless microphones suit Q&A sessions, roaming hosts and presenters who are comfortable holding a mic. They are also a reliable option for audience questions because the operator can pass one directly to the person speaking.
The trade-off is consistency. A handheld microphone only works well when held close enough to the mouth, typically 5 to 10 cm away. Speakers who hold it at chest level will sound distant, no matter how much the mixer is turned up. Brief speakers on where to hold it before they go on stage.
Lavalier and headset microphones
Lavalier microphones clip to clothing and are useful when a presenter needs both hands free. They work well for product demonstrations, training sessions and speakers who need to move across a stage. Placement is critical: secure the capsule around 15 to 20 cm below the mouth, away from necklaces, scarves, loose fabric and hair that could rub against it.
Headset microphones are often the better choice for energetic presenters. Because the capsule stays close to the mouth, they provide a more consistent level and can usually achieve more volume before feedback. They are less discreet than a lavalier, but often more practical in larger or noisier rooms.
Table and boundary microphones
For boardroom discussions or formal panel tables, boundary microphones can capture several people from one position. They work best when speakers are seated close together and the room is reasonably quiet. Do not expect one table microphone to cover a large panel table clearly, particularly if participants turn away or speak softly.
For important panel discussions, individual gooseneck microphones or a handheld mic for each speaker provide better control. This also makes it easier to adjust one speaker without affecting everybody else.
Position microphones and loudspeakers to prevent feedback
Feedback is the high-pitched whistle or low howl that happens when a microphone picks up amplified sound from a loudspeaker and sends it back through the system. It is one of the most common conference audio problems, but usually avoidable with sensible positioning.
Keep main loudspeakers in front of the microphones, facing the audience. A presenter should generally stand behind the front line of the speakers, not level with or in front of them. Never point a microphone directly at a loudspeaker, and avoid placing stage monitors close to open microphones unless they are necessary.
Use microphone stands where appropriate. A properly placed stand keeps the distance between the speaker and microphone consistent, which improves speech clarity and reduces the temptation to add too much gain. If a handheld microphone is left on a table, mute that channel. It can easily pick up table taps, papers and nearby conversation.
Speaker placement is also about even coverage. Turning one pair of speakers up very loud at the front often makes the front rows uncomfortable while the back remains unclear. In a larger room, distributed speakers at a lower level can sound clearer and more professional.
Set the mixer for speech, not maximum volume
Good conference audio is about gain structure. Start by setting the input gain for each speaker rather than relying on the main volume control. Ask the presenter to speak at a realistic event level, not a quiet rehearsal voice, then adjust the gain so their strongest words are clear without clipping.
Apply only the processing that helps. A high-pass filter can remove low rumble from air conditioning, handling noise and footsteps. A small reduction in muddy low-mid frequencies may improve intelligibility, but aggressive equalisation can make voices thin or unnatural.
Compression can help control large changes in volume, particularly for inexperienced speakers, but it should be used lightly. Too much compression brings up room noise and can make speech tiring to listen to. For a straightforward conference, clean microphone placement and correct gain will do more than heavy processing.
Mute unused channels. This simple habit reduces background noise and lowers the chance of feedback. It is especially useful during panel changes, breaks and video playback.
How to set up conference microphones for Q&A and hybrid calls
Audience questions need a plan. For a small room, a roaming handheld wireless microphone is usually the clearest and most controlled solution. Have a member of staff or event crew take it to the questioner, rather than expecting delegates to speak from their seats.
For larger conferences, use two roaming microphones so questions can be taken from different parts of the room without long pauses. If the chair repeats each question for the room, it can help, but it should not replace an audience microphone where the event is being recorded or streamed.
Hybrid events add another layer. Remote attendees need a clean audio feed that includes all presenters, videos and audience questions. Do not rely on a laptop’s built-in microphone to capture the room. Use a dedicated feed from the audio mixer, and test the return audio so in-room delegates can hear remote contributors without creating an echo.
If an online platform is being used, assign one person to monitor it. They should watch for muted remote speakers, incoming chat questions and connection issues while the sound engineer focuses on the room.
Run a realistic sound check
A sound check should happen before doors open, with enough time to solve problems rather than just identify them. Test every microphone, including spare units, using the same positions speakers will use during the event.
Walk the room while someone speaks into each microphone. Listen from the front, middle and rear seating areas. Check that video playback is audible and that walk-on music, if used, does not overpower announcements. If presentations include embedded video, test the exact file and the laptop connection rather than assuming it will behave as expected.
Use fresh batteries or fully charged battery packs for every wireless microphone. Keep spare batteries, a spare handheld microphone and charged backup packs close to the control position. Label microphones clearly, particularly for panels, so the operator can make quick adjustments without guessing which channel belongs to whom.
At AV2Hire, we regularly see simple preparation make the difference between a tense setup and a confident start. Delivery and professional setup are particularly useful when a venue has limited access times, several speakers or a programme that cannot afford technical delays.
The best conference microphone setup is the one that lets speakers be heard clearly without asking them to think about the technology. Plan the room, choose microphones that suit the format, test them under real conditions and keep a sensible backup ready. Then the audience can focus on the ideas being shared, which is where the attention belongs.