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Sound system, Using the microphone, Sound system -6 – Toshiba Qosmio G20 (PQG20) User Manual

Page 78: Using the microphone -6, Sound, System

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4-6

User’s Manual

Operating Basics

Sound System

Using the microphone

Your computer has 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.
Since your computer has a built-in microphone and speakers, “howling”

may be heard under certain conditions. Howling 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 howling 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.
To adjust the volume or activate Mute, click start, point to All Programs,

point to Accessories, point to Entertainment and click Volume control.

In the

Master volume

panel, you can use the slide bars to adjust the

volume level or click Mute at the bottom of the panel.

WinDVR must be installed using the Administrator account.

When two sequential scheduled recording sessions have been

reserved, the first session will terminate about

2 minutes before the

specified end time. This is because the second session needs a time

for preparation (For example, if two recording sessions of 1:00-2:00pm

and 2:00-3:00pm have been booked, the 1:00-2:00pm session will

terminate about

2 minutes earlier, that is, at about 1:58pm).

When you have set a password for the user account, scheduled

recording cannot be performed if Standby Mode is activated.

Even if you click the Stop Auto Scan button, the scan may not be

stopped due to the timing of processing. In that case, click the button

repeatedly.

If you exit WinDVR one minute or less before the scheduled recording

starts, recording may not be performed correctly. Therefore, do not

close WinDVR during a period of one minute before the scheduled

recording start time.

When video is imported from a video deck or other devices, noise may

appear in the top or bottom part of the screen. This noise is due to the

display areas called vertical blanking intervals, and not a failure.