Read our book "Equipment You May Find in Teaching and Learning Rooms"

Ceiling‑mounted microphones

Some teaching spaces use ceiling‑mounted microphones.

These microphones are installed in the ceiling and capture sound from around the room. They do not need to be worn or held and are often used to capture general room audio or discussions.

How to spot a ceiling‑mounted microphone

Ceiling microphones can be easy to overlook because they blend in with the room.

The most common way to identify one is to:

Look for a small, square, white unit fixed to the ceiling.

You may notice that it:

• Is square and white, often flush with the ceiling
• Has a small grille or perforated surface
• Has no buttons, lights, or cables you interact with
• Cannot be moved, picked up, or adjusted

They are usually positioned above the main teaching area.

Important

Ceiling microphones can pick up unintended audio, including:

• Side conversations
• Private comments
• Background noise

Staff should make students or attendees aware that room audio may be recorded.

In some rooms, ceiling microphones can be muted using the room control panel. Where this option is available, it should be used if audio capture is not required.

Ceiling microphones are fixed and cannot be repositioned.

Best practice: capturing student or audience contributions

Even where ceiling‑mounted or boundary microphones are present, it is strongly recommended that a hand‑held microphone is used when asking a student or audience member to speak during a recorded session.

Hand‑held microphones:

• Provide clearer and more consistent audio
• Ensure contributions are:
  • easy to hear,
  • accurately captured in recordings,
  • suitable for captions and transcripts

This is especially important in:

• Large teaching spaces
• Lecture theatres
• Rooms with background noise

Room microphones may capture some audience sound, but they are not always reliable for individual speakers and may also record unwanted audio.