Toshiba Satellite A300D User Manual download pdf (Page 69)

User’s Manual 4-12

Operating Basics

Using the microphone (optional)

Some models in this series are equipped with a built-in microphone that

can be used to record monaural sounds into your applications. It can also

be used to issue voice commands to applications that support such

functions.

If your computer has a built-in microphone and speaker, "feedback" may be

heard under certain conditions. Feedback occurs when sound from the

speaker is picked up in the microphone and amplified back to the speaker,

which amplifies it again to the microphone.

This feedback occurs repeatedly and causes a very loud, high-pitched

noise. It is a common phenomenon that occurs in any sound system when

the microphone input is output to the speaker (throughput) and the speaker

volume is too loud or too close to the microphone. You can control

throughput by adjusting the volume of your speaker or through the Mute

function in the Master Volume panel. Refer to your Windows documentation

for details on using the Master Volume panel.

Using the TOSHIBA Face Recognition

TOSHIBA Face Recognition uses a face verification library to verify the

face data of users when they log in to Windows. The user can thus avoid

having to enter a password, which makes the login process easier.

■ TOSHIBA Face Recognition does not guarantee the correct

identification of a user. Changes to the likeness of a registrant, such as

hair style changes, wearing a cap, or wearing glasses may effect the

recognition rates when such changes occur after the registrant had

registered.

■ TOSHIBA Face Recognition may incorrectly recognize faces that are

similar to a registrant.

■ For high security purposes, TOSHIBA Face Recognition is not a

suitable substitute for Windows passwords. When security is a high

priority, use your established Windows passwords to log in.

■ Bright background light and/or shadows may prevent a registrant from

being recognized correctly. In that case, log in using your Windows

password. If recognition of a registrant fails repeatedly, refer to your

computer documentation to learn ways to improve recognition

performance.

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Toshiba Satellite A300D User Manual Page 69