Skip to main content

What Is “Noise” in My Assessment and How Can I Prevent It?

During your OTO assessment, your biosensor is measuring very subtle electrical signals from your body. For the assessment to be successful, these signals need to be clear and stable.

“Noise” refers to any unwanted interference that disrupts these signals. When too much noise is present, the system may not be able to accurately interpret your data, which can lead to an incomplete or failed assessment.


What Causes Noise?

Noise is usually caused by factors that affect signal quality or consistency. The most common causes include:

  • Loose or shifting belt
    Movement of the belt can interrupt consistent skin contact.

  • Poor skin contact
    Dry skin or insufficient moisture on the electrodes can reduce signal clarity.

  • Movement or muscle tension
    Talking, adjusting your position, or even subtle muscle activity can introduce interference.

  • Low or uneven pressure on sensors
    If the belt is too loose or not positioned correctly, readings may become unstable.

  • Clothing interference
    Items like underwire bras or synthetic fabrics can disrupt the signal.


How Can I Prevent Noise?

Reducing noise is all about creating a stable and consistent setup during your assessment:

  • Wear the belt high and snug on your chest
    Ensure it sits flat against your skin and does not shift.

  • Lightly wet the electrodes before starting
    This improves conductivity and signal quality.

  • Stay still and relaxed
    Avoid talking, moving, or tensing your muscles during the assessment.

  • Minimize interference from clothing
    If possible, avoid underwire bras or materials that may affect contact.

  • Check your setup before starting
    Make sure everything feels secure and comfortable.

Did this answer your question?