Conference AV in Melbourne: Microphones, Live Screen Switching and Confidence Monitors Explained

Conference AV in Melbourne: Microphones, Live Screen Switching and Confidence Monitors Explained

Most Melbourne conferences of 100–300 delegates need the same AV core:

• a lectern microphone
• one wireless microphone for each person on stage at the same time
• at least one roaming microphone for audience Q&A
• a vision switcher so slides, video and camera feeds change cleanly on the main screen
• a confidence monitor so presenters can see their slides without turning around
• at least one dedicated technician running sound and vision

This guide explains each piece, gives kit lists by audience size, and shows where conferences usually go wrong. It's written for organisers who want to brief a supplier properly and compare quotes like for like.

Conference AV kit by audience size

Use this as a starting point, not a quote. Room shape, ceiling height, the number of breakout rooms and whether you're streaming all change the list.

How many microphones does a conference need?

Count the most people who will speak at the same moment, then add one or two spares. A four-person panel needs four microphones live at once, plus a moderator microphone. A keynote needs one.

• Lectern (gooseneck) microphone. It's fixed and reliable, and suits formal speeches and MCs. Its weakness is speakers who wander away from the lectern.
• Handheld wireless microphone. The most familiar option, good for panels and awards. Presenters need a little coaching to hold it close to the mouth.
• Lapel or headset microphone. Hands-free, so presenters can use a clicker and move around. Headsets give more consistent sound in large rooms; lapels are less visible on camera.
• Roaming Q&A microphones. Usually handhelds carried by floor runners, or fixed stand mics in the aisles. If you're recording or streaming, audience questions must go through a microphone, otherwise online viewers hear nothing.

Wireless microphones need clean radio frequencies. Large venues such as convention centres can have dozens of systems running at once across neighbouring rooms. A professional event audio services team scans and coordinates frequencies before doors open, and keeps fresh batteries for every transmitter.

What is live screen switching, and do you need it?

Live screen switching means an operator uses a vision switcher to choose what appears on your screens. The sources might be the slide deck, a video, a sponsor loop, a live camera of the speaker, or a remote presenter. The audience sees clean cuts and fades instead of a desktop, a frozen frame or someone hunting for a file.

You need it when your program has any of these:

• more than one presenter, especially with their own laptops
• videos with sound
• sponsor or holding slides between sessions
• live camera (IMAG) so people at the back can see facial expressions
• remote presenters joining over Zoom or Teams
• a livestream or recording

The single biggest improvement is a show laptop. Collect every presentation in advance, load it on one machine with a backup alongside, and stop plugging in presenters' own laptops on stage. It removes most of the failure points in a conference.

Confidence monitors and speaker timers

A confidence monitor is a screen on the stage floor, angled up at the presenter. It shows the current slide, often with the next slide and speaker notes. Presenters keep eye contact with the audience instead of turning to read the big screen.

A speaker timer counts down each session and can flash a warning in the last few minutes. For a tightly run program, the timer is the most cost-effective piece of AV you can add.

Screens: projection or LED?

Projection is cost-effective in rooms you can darken. LED walls stay bright in daylight-filled rooms, can be built to any size, and look sharper on camera. If you're unsure, our comparison of LED video wall vs projection walks through the trade-offs. For larger plenaries, LED video wall hire lets you build a single wide canvas that carries slides, camera and branding at once.

Stage lighting for presenters

Room lights alone leave presenters in shadow and look flat on camera. Even two to four front wash lights make a noticeable difference. A few uplights on the set or backdrop finish the look. If you're recording or streaming, lighting matters even more; see our stage lighting hire options.

Streaming, recording and hybrid sessions

If part of your audience is online, plan the in-room and online experience together:

• a dedicated camera
• a clean audio feed
• a host for the online audience
• a way for remote attendees to ask questions

Our hybrid event AV team handles both rooms at once. The AGM audio visual production guide covers the extra requirements for member voting and recorded minutes.

Venue notes for Melbourne conferences

• Check the venue's AV policy first. Many hotels and convention venues have an in-house or preferred AV supplier. Some charge a fee for external suppliers. Ask before you book, so the quote you compare is the real cost.
• Ask for bump-in times. Large rooms often have tight setup windows, especially when the venue has another event the night before.
• Combine with an expo. If your conference has a trade exhibition alongside it, the same supplier can usually cover stands through exhibition AV hire. They can also run poster sessions with ePosters and digital signage.

Common conference AV mistakes

1. No rehearsal time. Even 15 minutes per keynote catches slide formatting, video audio and microphone problems.
2. Presentations arriving on the day. Set a deadline two days before the event and load everything onto the show laptop.
3. Forgetting Q&A microphones. Questions shouted from the floor can't be heard in the room or online.
4. One person doing everything. Once you have a switcher and more than two microphones, separate audio and vision operators pay for themselves.
5. Booking late. For peak months, book your AV 6–8 weeks ahead.

Planning your conference AV with Mars Productions

Mars Productions supplies and operates conference AV across Melbourne, from boardroom sessions to multi-room programs. That covers microphones, PA, screens and LED walls, vision switching, lighting, streaming and on-site crew. Our corporate event production in Melbourne service plans the whole technical side with you. You can also start with our conference AV checklist or read how much AV hire costs in Melbourne.

Send us your program, venue and delegate numbers, and we'll come back with a kit list and crew plan. Request a conference AV quote.