How to Troubleshoot AV Issues During an Event
Even the best-planned events can run into technical problems. What separates events that recover gracefully from ones that don’t is preparation, and having an experienced team on-site who knows exactly what to do.
We break down the most common AV issues that come up during live events and what a professional AV team does before the event even starts to reduce the chances of problems occurring in the first place below.
Key Takeaways:
- Audio, display, streaming, and power issues are the most common categories of AV problems at live events.
- Most problems can be traced back to something in the signal chain or a step that wasn’t tested thoroughly enough before the event started.
- The best defense against AV problems is a thorough pre-event check.
What Are the Most Common AV Issues During Live Events?
1. Audio Problems
Audio problems are usually the most disruptive and noticeable. Whether it’s a microphone cutting in and out or feedback that rings through the room, these can pull attention away from the content almost immediately.
Sound glitches can be caused by anything from something loose in the signal chain to RF interference from other wireless devices in the venue. They can also layer on top of each other.
How to Troubleshoot
The easiest way to troubleshoot audio is to follow the signal path from the source to the speakers. Start with the microphone and make sure it’s on, powered, and plugged in correctly. Then check the mixer to see if the channel is on, the gain is set properly, and nothing is muted. After that, move on to the amplifier and speakers. Most audio issues come from somewhere along that chain, and checking each step in order is usually faster than guessing.
Feedback works a little differently. It happens when a microphone picks up sound from a nearby speaker and sends it back through the system. In most cases, you can fix it by moving the microphone, lowering the gain, or adjusting the EQ. Someone with experience can usually sort it out pretty quickly.
2. Display and Video Issues
Display and video issues usually seem to happen right when someone is about to start presenting. A projector not connecting or a video playing without sound typically comes down to something simple, like a loose cable, the wrong input, or a display setting that got missed during setup.
How to Troubleshoot
To troubleshoot it, start with the connection. Make sure the cable is fully plugged in and that it matches the input you’re using. If needed, try a different cable since that fixes more problems than you’d think. If the issue continues, check that the display is set to the correct input and that the source device is using the right output settings. A laptop in the wrong display mode is a common cause of a blank screen. It also helps to keep backup cables and adapters close by in case something unexpected comes up.
3. Live Streaming Problems
Live streaming has become a much bigger part of event production, especially with more hybrid events. When the stream drops, freezes, or falls out of sync, remote viewers can miss part of the event before anyone in the room even realizes there’s a problem. A lot of those issues can be avoided with a stable internet connection and enough time to test everything beforehand.
How to Troubleshoot
If something goes wrong, first figure out whether the issue is with your equipment or the venue’s network.
For important streams, a dedicated wired connection is usually the safest option. Make sure the connection is live and check the upload speed. If the stream keeps dropping or the video starts to pixelate, lowering the bitrate for a bit can help keep things stable while you troubleshoot. If the audio and video get out of sync, restarting the stream and syncing the feed again is generally the fastest fix.
4. Power Issues
Power issues don’t happen as often, but when they do, they can take down the whole AV system. A tripped breaker can shut everything off at once, and older venues, overloaded circuits, or improperly used extension cords are often the cause. A lot of this can be prevented by planning the power load ahead of time.
How to Troubleshoot
If the system suddenly goes down, check the breaker first. If it tripped, you can reset it, but you should figure out what caused it before turning everything back on. If the circuit is still overloaded, it will just trip again. That’s why it helps for the AV team to understand the venue’s electrical setup in advance and spread the equipment across circuits properly.
What Role Does Your AV Team Play in Preventing Problems?
A good pre-event check is where a lot of problems get caught, while there’s still time to fix them before the audience notices.
- Check Audio the Way It Will Actually Be Used: Every microphone should be tested at the volume it will be used during the event, and someone should listen from the audience area. It’s not enough to tap the mic and confirm there’s a signal. You want to know how it actually sounds in the room.
- Run Through Video and Presentation Sources: Displays, projectors, and screens should be tested with the correct source, and presentations should be opened on the actual devices that will be used. If you’re playing video, run it all the way through so you can catch skipping, playback, or audio issues ahead of time.
- Test the Live Stream Early: If the event includes a live stream, do a test broadcast well before doors open. That gives you time to spot connection, sync, or quality issues and fix them before the event starts.
- Check the Network in the Actual Space: Test the internet connection for both upload speed and stability. If you’re using the venue’s network, make sure there’s dedicated bandwidth instead of relying on shared Wi-Fi. All of this should be tested in the actual event space, since sound, lighting, and visibility can change a lot from one room to another.
- Have Backup Gear Ready: A good AV team also plans for problems before they happen. Spare cables, fresh mic batteries, and backup options for key equipment can make a big difference when something goes wrong. The goal is to be ready with a fix before you need one.
What Are Some Tips for Ensuring Smooth AV Performance at Any Event?
A lot of audio problems at events aren’t caused by bad equipment. Instead, they come down to microphone technique. If a presenter holds a handheld mic too low or keeps turning away from a podium mic, the sound quality is going to suffer no matter how good the system is. A quick, friendly reminder before the event starts can go a long way.
It also helps for the AV team to have direct contact with the event coordinator during the event. If something comes up, the right person should know right away instead of hearing about it later through someone else.
Frequently Asked Questions
Do I Need a Backup Plan for Live Streaming at Large Events?
Yes, and it’s worth building it in from the start rather than figuring it out when something goes wrong. For large or high-stakes events, this typically means having a dedicated cellular backup (e.g., a second wired line or a dedicated cellular backup) so you can switch over quickly if the primary drops. It also means having someone whose only job during the event is to monitor the stream and respond if the quality drops at any point.
While a keynote going out to thousands of virtual attendees will probably warrant more backup than a small internal meeting, your AV team can help you figure out what’s appropriate for your event.
How Do I Know If My Venue Can Support My AV Requirements?
Share your full AV plan with your provider in advance and let them assess the space. The things that typically matter most include:
- How many circuits are available and where they’re located.
- Internet connection quality and whether dedicated bandwidth can be reserved.
- Room acoustics and ambient light levels.
- Ceiling height and layout if rigging or large displays are involved.
What Should I Do if AV Equipment Fails During a Live Event?
Try your best to stay calm and let your AV team do their job! Trying to manage the problem yourself, especially if you’re unfamiliar with the equipment, tends to make things harder for everyone.
A good AV team will have thought through the most common failure scenarios in advance, and most issues can be resolved in minutes when the right people are on-site and prepared.
Need Your Next Event to Go Right? Partner With Our AV Experts!
At Klang AV Pro, we’ve supported events across Clearwater, Tampa Bay, Sarasota, Orlando, Naples, and Central Florida. If you’re planning an event and want an AV partner who takes preparation seriously, give us a call at 727-482-4426 or contact us online! New customers receive 20% off their first service.
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