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Live Sound field guideRead first · browser practice optional

Free live sound listening check

Feedback frequency test for live sound

Practise one part of feedback response: hearing a simulated ring and forming a frequency hypothesis. The no-signup browser check can reveal a repeatable listening target, but the correct venue move still depends on the microphone, loudspeaker path, routing, gain, geometry, and room.

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Take the listening checkRead the decision path

The listening check is practice with simulated audio. It is not a venue ring-out, system measurement, fault diagnosis, or hearing assessment.

01 · Orient

Understand the problem first

What is happening

A vocal mic starts to ring, the room looks at the booth, and you need to cut the right band fast.

What this guide helps decide

Find out whether you can identify the frequency that is feeding back.

02 · Use the method

Stabilize, trace the path, change one variable.

Working method

Stop or lower the immediate risk first. Trace the source, microphone, routing, bus, loudspeaker, geometry, and room path. Form one hypothesis from listening plus available measurement, change one reversible variable, then restore and compare before stacking another move.

Scope limit

Browser audio depends on playback hardware and listening level. Use it to practise recognition, then verify decisions on the actual PA with venue procedures and a qualified operator. Protect hearing: never provoke feedback during a show or run an uncontrolled high-level test.

Evidence note

Treat feedback as a complete acoustic loop

Microphone/loudspeaker placement, mic technique and pattern, open microphones, frequency response, and room acoustics all affect gain before feedback; EQ is not the only control.

Shure Audio Institute

Evidence note

Use the console analyzer as evidence

The X32 provides a 100-band RTA with bar, spectrograph, and EQ-overlay views. The selected source and pre/post-EQ context still determine what the display means.

Behringer X32 documentation

Evidence note

Measure and control noise exposure

NIOSH treats repeated workplace exposure at 85 dBA or higher as hazardous and prioritizes measuring and reducing exposure, with appropriate hearing protection when needed.

CDC / NIOSH

03 · Work the order

Work through the problem in order

  1. 1

    Set playback to a comfortable level, then listen to the simulated ring.

    Proof before the next move: You can replay the cue without raising playback to chase detail.

  2. 2

    Choose the band that best matches what you heard.

    Proof before the next move: Your answer is a listening hypothesis, not a measurement of a PA or room.

  3. 3

    Read the run result and isolate the band or contrast that caused the misses.

    Proof before the next move: You can name one next listening target without treating one score as certification.

  4. 4

    Continue into the matching rep, then verify real venue decisions with the correct path and measurement tools.

    Proof before the next move: Browser evidence stays separate from any claim about a live system.

04 · Choose a rep

Choose what to practise next

Each card opens the named rep, not a generic product doorway. Main Act may ask you to sign in before protected practice.

Feedback Frequency IDBuild a frequency hypothesis from a ringing cue before choosing a system move.Open this repLive EQ TriageSeparate the most urgent tonal problem from changes that can wait.Open this repGain Before FeedbackRehearse the trade between required level, tone, geometry, and stability.Open this repRoom DiagnosisCompare what belongs to the room, the system, and the source.Open this rep

Practise what you just read

Practise the decision in Main Act.

Use the feedback check for one low-risk listening cue, or browse the full Live Sound practice library for the complete decision. Browser practice does not diagnose a venue problem.

Open the listening checkBrowse Live Sound practice

The listening check needs no signup. Protected practice may ask you to sign in; saving remains optional.

05 · Resolve the edges

Questions

Do I need a PA to take the test?

No. The test runs in the browser with headphones or speakers, so you can practice before you get to the room.

What happens after the test?

Your result names a listening target and points into Live Sound reps. It does not identify a venue fault, choose an EQ move, or certify feedback response under show conditions.

Stay in Live Sound

Choose the next field guide.

Open the school

Feedback quick fix

How to stop microphone feedback fast

Best next when: The singer steps toward the wedge, the mic starts to howl, and there is no time for a lecture.

Read this guide

PA ring-out practice

Ring out a PA by ear

Best next when: You are ringing out wedges or a vocal mic and need to know what to cut without guessing.

Read this guide

Gain structure training

Gain before feedback practice

Best next when: The vocal is not loud enough, the monitor is already hot, and pushing the fader makes the room ring.

Read this guide