Hear What the Meters Can’t Tell You with WAVETOOL

Key Takeaways
- Modern audio monitoring requires more than metering, helping engineers understand what happened, why it happened, and whether action is needed.
- WAVETOOL combines audio, RF, and battery monitoring in a single platform, giving engineers a unified view of complex live, broadcast, and theater productions.
- Direct microphone listening and Global Instant Replay help engineers investigate issues with confidence, reducing guesswork when troubleshooting audio anomalies.
- Built-in collaboration tools keep A1s, A2s, RF coordinators, and systems engineers connected, improving communication across distributed production teams.
- Designed for theater, broadcast, and live production, WAVETOOL supports proactive monitoring and faster decision-making in complex audio environments.
Every live production has moments that only the audio team notices. A microphone crackles for half a second. A lavalier brushes against the wardrobe. An intermittent RF hit appears, then disappears.
The audience may never notice. The engineer always does.
Recognizing those moments isn’t the difficult part. Experienced engineers hear them immediately. The challenge is deciding what they mean. Was it RF? A performer adjusting a headset? The first sign of a failing connector? Or was it simply part of the performance?
Each possibility requires a different response. Sometimes the right decision is to replace a microphone, or send an A2 backstage, or to decide the issue doesn’t require intervention at all.
That’s why audio monitoring has become about more than watching meters.
Why Metering Alone Isn’t Enough for Audio Monitoring
A level meter answers an important question. Is audio present?
For many situations, that’s enough. But when productions become more complex, the signal alone rarely tells the complete story.
A microphone can show healthy levels even when clothing noise is present. RF can recover before anyone has time to investigate. Moisture can begin affecting a capsule long before it fails. The meter still shows a signal, but it can’t explain what caused the change or whether action is required.
Dominic Bilkey, Head of Sound & Video at the National Theatre, describes the limitation simply:
“Metering enables them to see visibility and signal. What it doesn’t show them is the pure audio quality.”
That’s why experienced engineers don’t rely on meters alone.
Theater Sound Deputy Marcia Roach explains:
“You cannot identify those different sounds just by looking at a wave. You need to use your ears and listen.”
Listening has always been one of an engineer’s most valuable troubleshooting tools.
A microphone brushing against the wardrobe sounds different from RF interference. Moisture affecting a capsule sounds different from a loose connector. Those distinctions matter because each issue requires a different response.
Meters tell you that something happened. Listening tells you whether it matters.

What Great Audio Monitoring Looks Like
The best audio monitoring platforms don’t replace an engineer’s instincts. They support the way engineers already troubleshoot by monitoring, listening, investigating, and communicating.
Here are four capabilities every modern audio monitoring platform should provide.
Monitor Every Audio Source in One Place
Modern productions rarely rely on a single manufacturer or a single audio system.
Wireless microphones, wired inputs, playback systems, networked audio, and intercom all need to be monitored together. Switching between separate applications slows troubleshooting at exactly the moment speed matters most.
WAVETOOL brings all wired and wireless audio sources into a single monitoring platform, even across multiple manufacturers. Available on Mac and iPad, it gives audio teams the flexibility to monitor productions wherever they may be in the venue. For engineers managing increasingly complex productions, that unified view makes it easier to keep the entire audio environment in focus instead of leaving parts of the production unmonitored.
For RF coordinators and A2s, this includes monitoring RF performance and battery levels alongside audio, making it easier to spot a fading transmitter or low battery before it becomes audible to the audience.
Listen to Individual Microphones, Not Just Meters
Once an issue has been identified, the next step is understanding what actually caused it. That’s where listening becomes indispensable.
Being able to isolate an individual microphone often reveals what a level meter cannot. By combining visual monitoring with real-time listening to individual microphones, WAVETOOL helps engineers investigate issues without relying on assumptions or guesswork.

Review What Happened with Global Instant Replay
Not every audio issue can be investigated the moment it happens.
During a live production, engineers are balancing dozens of responsibilities at once. A performer is walking on stage. A camera is live. A scene change is underway. By the time someone asks, “Did you hear that?” the moment has already passed.
That’s why WAVETOOL’s Global Instant Replay is one of its most valuable troubleshooting tools.
Engineers can go back up to 30 minutes across all 192 monitored channels, revisit exactly what happened, and listen back to any source without relying on memory or trying to recreate the moment after the fact.
Instead of asking, “Did I really hear that?” they can review the event, isolate the affected microphone, and determine whether the issue was isolated or part of a larger problem.
Alice Brooks, Sound No. 2 on American Psycho at the Almeida Theatre, describes one of those moments. While she was helping with a quick-change backstage, her Number One heard something unusual and asked whether a performer’s microphone was failing. Using WAVETOOL’s Global Instant Replay, she listened back and immediately understood what had happened.
“My number one was like, ‘Oh, is that mic broken?’ I listened back and was like, ‘Nope, I can 100% confirm that was just breath.’ And it just puts you at ease because then you go, ‘All right, I don’t need to spend the rest of the scene before they come off terrified that something’s going to start banging and popping suddenly."

Replay doesn’t just help engineers hear something again. It gives them the evidence to decide whether action is actually needed.
Keeping the Whole Team Connected
Whether it’s theater, broadcast, live events, or corporate production, solving audio issues often depends on front-of-house engineers, A2s, RF coordinators, systems engineers, and monitor engineers working together.
The challenge isn’t simply identifying a problem. It’s making sure everyone who needs the information has it.
WAVETOOL supports up to eight simultaneous clients and includes built-in chat, image sharing, and event logs, allowing teams to communicate without leaving the same platform they’re already using to monitor the production.
For Front-of-House Engineer Connor Duckworth, that changes how the entire team works.
“The WAVETOOL chat function allows us to stay aligned by quickly being able to communicate which mic is active or which mic may have faults on it that I’ve spotted… It just efficiently allows us to communicate quickly and react to a question or a statement that someone has put on the chat.”

When everyone is working from the same information, troubleshooting becomes faster, communication becomes simpler, and the entire audio team stays focused on the production.
Audio Monitoring for Modern Live Productions
The role of audio monitoring has changed.
Today’s engineers are expected to monitor larger wireless deployments, manage increasingly complex audio systems, troubleshoot issues in real time, and collaborate across distributed teams, all without disrupting the production.
That’s why modern audio monitoring has become about more than confirming the signal. It’s about reducing uncertainty.
When engineers can monitor every audio source in one place, listen to individual microphones, revisit critical moments with Global Instant Replay, and keep the entire team connected, they’re better equipped to solve problems before they affect the audience.
Because in live production, the faster engineers understand what’s happening, the faster they can make the right decision.
WAVETOOL helps engineers hear what the meters can’t tell them. Explore WAVETOOL 4 and start a 30-day free trial today at www.shure.com/wavetool
WAVETOOL: Frequently Asked Questions
What is audio monitoring? Audio monitoring is the practice of tracking every audio source in a live production in real time. Beyond confirming that the signal is present, it helps engineers investigate issues such as RF dropouts, clothing noise, microphone faults, and other audio anomalies before they affect production.
What does microphone monitoring do? Microphone monitoring allows engineers to watch and listen to individual microphones in real time. By isolating a single source, they can distinguish between issues such as RF interference, clothing noise, performer movement, or hardware problems—details that level meters alone can’t identify.
Why isn’t metering enough on its own? Meters confirm that the signal is present, but they don’t explain audio quality or the cause of an unexpected sound. Great audio monitoring combines metering with listening, replay, and a unified view of the production so engineers can determine what happened and decide whether action is required.
What is WAVETOOL? WAVETOOL is Shure’s professional audio monitoring software for theater, broadcast, and live production. It brings wired and wireless audio sources into a single monitoring platform, even across multiple manufacturers, while providing RF monitoring, battery status, direct listening, Global Instant Replay, and collaboration tools for the entire audio team.
Can engineers review something they’ve already heard? Yes. WAVETOOL’s Global Instant Replay allows engineers to go back up to 30 minutes across all 192 monitored channels, review exactly what happened, and investigate issues without relying on memory or trying to recreate the moment after the fact.











