• Speakers
Your computer also has an audio chip that enables you to enjoy various multimedia audio features, such as
the following:
• Compliant with High Definition Audio
• Playback of MIDI and MP3 files
• Recording and playback of PCM and WAV files
• Recording from various sound sources, such as a headset attached
The following list provides information about supported functions of the audio devices attached to the
connectors on your computer or the docking station.
• Headset with a 3.5-mm (0.14-inch), 4-pole plug: Headphone and microphone functions
• Conventional headphone: Headphone function
Note: The conventional microphone is not supported.
Using the smart audio feature
The smart audio feature is supported on some computer models. To help protect against hearing loss, the
feature limits the computer’s maximum wide band true RMS output voltage to 130 mV when a headset or
headphone is connected.
To change the setting, do the following:
1. Go to Control Panel and view by Large icons.
2. Click SmartAudio. In the window displayed, click the Disable Headphone Limiter icon. Then follow the
on-screen instructions.
Using the cameras
Depending on models, your computer might be equipped with a conventional camera with camera shutter or
an infrared camera.
Using the conventional camera with camera shutter
To use the conventional camera with camera shutter to take pictures and record videos, slide the camera
shutter to the left to unveil the camera lens first. Then open the Start menu and click Camera from the
program list. If you use other programs that provide features such as photographing, video capturing, and
video conferencing, the camera starts automatically when you enable the camera-required feature. When the
camera starts, the camera status indicator nearby turns white, indicating that the camera is in use. If you
want to cover the camera lens, slide the camera shutter to the right.
If you want to configure the camera settings, open the Start menu and then click Lenovo Companion ➙
Hardware Settings ➙ Display, Camera & Audio/Media. Locate the Camera section and then follow the
instructions on the screen to configure the camera settings.
Using the infrared camera
The infrared camera provides a personal and secure way for you to sign in to your computer with face
authentication. After setting the infrared camera for face authentication, you can unlock your computer by
scanning your face instead of using a password.
The infrared camera has the following components:
Chapter 2. Using your computer 33
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