WALKMAN User Guide
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## About Noise Canceling

Notes on using the Noise Canceling function
The internal microphone embedded in the headphones picks up ambient noise. The player generates an antiphase sound wave against the ambient noise to reduce it. The Noise Canceling function can reduce unwanted ambient noise especially in a vehicle such as an airplane, train, bus, etc., allowing you to enjoy music at a low volume.

1. The waveform of the ambient noise (original sound).

The internal microphone embedded in the headphones picks up the ambient noise. Then, the Noise Canceling circuit analyzes the waveform of the noise.

1. The antiphase waveform against the noise.

The player generates an antiphase waveform against the noise to cancel it out.

1. The composite waveform. Two waveforms cancel each other out.

The original waveform and antiphase waveform combine to cancel each other out, reducing ambient noise.

### Notes on using the Noise Canceling function

- If the supplied headphones are not used properly, the effect of the Noise Canceling function may be compromised. To make the most of the function, use the correct size earbuds to fit your ears and insert the headphones into your ears snugly.

- Rubbing noises may occur while wearing headphones. This is not a malfunction.

- The Noise Canceling function mainly reduces ambient noise in the low frequency bands and has less effect on ambient noise in the higher frequency bands, such as voices and ringing tones. It has no effect on certain sounds.

- Do not cover the microphone part of the headphones () with your hands, etc., otherwise the Noise Canceling function may not work.

- You may hear a slight noise when the Noise Canceling function is active. This is operational noise of the Noise Canceling function and not a malfunction.

- You may feel the Noise Canceling function does not work or noise is louder in a quiet environment or certain noises may not be canceled as effectively as others. In this case, release the Noise Canceling function.

- Mobile phones may cause noise. In this case, keep the player away from mobile phones.

- Make sure to remove the headphones from your ears before you connect or disconnect the headphones from the headphone jack of the player. If the headphones are connected or disconnected from the player during playback, or while the Noise Canceling function is active, noise may be generated. This is not a malfunction.

- When the Noise Canceling function is turned on or off, a switching sound will be generated. This sound is generated by the switch of the Noise Canceling circuit, and is not a malfunction.

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