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Be sure to fit earpieces of the headphones tightly into your ears. If you feel that the noise canceling function has little effect, adjust the earbud position in the earpieces of the noise canceling headphones or replace the earbuds with a pair in another size. A pair of medium-size earbuds is attached to the earpieces by default and there should be an extra pair in each small and large sizes supplied with the headphones. . The noise canceling function is to reduce low-frequency noise in the ambient environment but not high-frequency noise. Nor is it to implement a 100% noise-free audio environment. Using Peripheral Devices > Using the Noise Canceling Headphones n 97 N . When the noise canceling function does not seem to be working, unplug the supplied noise canceling headphones completely and then plug them back again. . Keep the built-in microphone (1) of the noise canceling headphones unblocked to ensure that the noise canceling function can be fully in effect. . You may hear a soft hissing noise while the noise canceling function is enabled. This is just operational noise that the function generates and does not indicate a malfunction. . You may feel that the noise canceling function has little effect or ambient noises seem even louder, depending on the type of noise or the degree of quietness in your environment. In such a case, disable the noise canceling function. . Use of a mobile phone may cause radio interference with the noise canceling headphones. When using the headphones, keep mobile phones away from the headphones. . Plugging or unplugging the noise canceling headphones generates noise. This is normal and does not indicate a malfunction. Be sure to take off the headphones from your ears before plugging or unplugging the headphones. . Enabling/disabling the noise canceling function or enabling/disabling sound with the Windows volume controls generates noise. This is caused by switching the noise canceling circuit and does not indicate a malfunction. . Be sure to use the supplied noise canceling headphones. You can plug the headphones supplied with a Walkman® to your computer but the noise canceling function of the computer will not work well with such headphones. . If you configure your noise canceling headphones to pick up sounds from its built-in microphone and output them through the earpieces, the sounds will be amplified. Be careful about the volume when you change the configuration. Using Peripheral Devices > Using the Noise Canceling Headphones n 98 N Connecting the Noise Canceling Headphones To connect the noise canceling headphones Plug the headphones cable into the headphones jack i. The icon appears on the taskbar to indicate that the noise canceling function is enabled and a balloon message pops up from the icon. . When the icon is on the taskbar, the noise canceling function is disabled. Right-click the icon and select Enable Noise Canceling Function from the menu. If no icon is on the taskbar, see What to do if the icon and the balloon do not appear (page 101) to change the settings. Using Peripheral Devices > Using the Noise Canceling Headphones n 99 N Adjusting the Effect of the Noise Canceling Function The noise canceling headphones supplied with your computer is configured to yield the optimum effect by default. If you feel that the noise canceling function is not fully in effect, you may be able to adjust the effect with the Noise Canceling Control slider on the Noise Canceling Headphones window. To adjust the effect of the noise canceling function 1 Right-click the icon on the taskbar and select Settings. . If no icon is on the taskbar, see What to do if the icon and the balloon do not appear (page 101) to change the settings. 2 Drag the Noise Canceling Control slider toward Mic+ or Mic- to select your desired noise canceling level. . The slider should be at the center of the range to yield the optimum level. Dragging the slider all the way to Mic+ does not bring the noise canceling function fully into effect. 3 Click Apply. 4 Confirm that the noise canceling effect is satisfactory and then click OK. Using Peripheral Devices > Using the Noise Canceling Headphones n100 N Using the microphone directivity function Just like an ordinary microphone, the built-in microphone of the noise canceling headphones picks up ambient sounds coming from all directions. The microphone directivity (beamforming) function, however, can reduce ambient noises and pick up mainly your voice and sounds coming from your front and rear. The microphone directivity function comes in handy when you want your voice to sound clearly while chatting or when you want to use the headphones as a microphone to record your own voice or sounds coming from your front. To enable the microphone directivity function 1 Right-click the icon on the taskbar and select Settings. . If no icon is on the taskbar, see What to do if the icon and the balloon do not appear (page 101) to change the settings. 2 Click the Microphone...
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