Sony SupportMDR-MV1

Article ID : 00294239 / Last Modified : 11/17/2023Print

The Noise Canceling effect is weak or not working (WF-C700N)

    Follow these steps to troubleshoot this issue:

    Before you start

    If the issue only occurs during a phone call, refer to The noise canceling function doesn't work, or white noise is heard during a call on the headphones article.

    Solution

    1. While wearing the earbuds, press the L side button to turn on the Noise Canceling function. You will hear a notification sound from both units (or from the left unit when only the left unit is worn) at the same time.
      Note: In the default setting, you can switch between the Noise Canceling and Ambient Sound functions by pressing the L side button.

      The Noise Canceling function works
      The issue was caused because the Noise Canceling function was Off.
      The Noise Canceling function doesn't work
      Go to the next step.

    2. Change the earbuds settings using the Sony | Headphones Connect app.

      When the Adaptive Sound Control is set to On, the earbuds detect your action (running, walking, etc.) and automatically switch the settings of the Noise Canceling function to Ambient Sound Control. To make maximum use of the Noise Canceling function, follow these steps to set the Adaptive Sound Control to off and adjust the Noise Canceling or Ambient Sound Control manually.
      Note: If the Adaptive Sound Control is set to On, the Noise Canceling is adjusted, and Adaptive Sound Control is activated according to your action.

      1. Turn off the Adaptive Sound Control.
        1. Connect the earbuds and smartphone via Bluetooth, then launch the Sony | Headphones Connect app.
        2. On the Status tab, check the Adaptive Sound Control status. If the status shows other than Off (Staying, Walking, etc.), select right arrow on the right side of the Adaptive Sound Control menu.
        3. Turn off the Adaptive Sound Control.
      2. On the Sound tab, tap the down arrow button on the right of the Ambient Sound Control menu, and select NOISE CANCELING.
      The Noise Canceling function works
      The earbuds settings caused the issue.
      The Noise Canceling function doesn't work
      Go to the next step.

    3. Fit the earbuds to your ears firmly.

      If the earbuds do not fit your ears, the noise canceling function may be significantly affected. To maintain quality, consider these factors:

      • Make sure the earbuds are worn properly
      • Select the earbuds that best fit your ears. Measure the air-tightness of the earbud tips and find the optimal size of earbud tips using the Sony | Headphones Connect app
      • Make sure that the earbud's microphone and your ear are not in contact with each other.
      The Noise Canceling function works
      The size or fitting conditions may have affected the Noise Canceling function.
      The Noise Canceling function doesn't work
      Go to the next step.

    4. Reset the earbuds.

      Watch this video or refer to the Resetting the headset page for instructions:

      The Noise Canceling function works
      The issue may have been caused by a temporary earbud malfunction.
      The Noise Canceling function doesn't work
      Go to the next step.

    5. Initialize the earbuds.
      Note: Initialization returns the earbuds to the factory settings, and all Bluetooth pairing information is deleted.

      Watch this video or refer to Initializing the headset to restore factory settings page for instructions:

      The Noise Canceling function works
      The issue may be caused by a temporary earbuds malfunction.
      The Noise Canceling function doesn't work
      The Noise Canceling function is most effective for low frequency (bass) noise, such as the noise made by vehicles or air conditioning, but not all sounds can be completely canceled. Try other conditions to test the effectiveness of the Noise Canceling function.

    Go to the Headphones Troubleshooting Guide