Toshiba Tecra M2-S519 User Manual - Page 82

Sound System, Using the microphone, SoundMAX control panel

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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 speaker, "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 side bars to adjust the volume level or click Mute at the bottom of the panel. SoundMAX control panel The SoundMAX control panel lets you control additional functions for the Microphone Enhancement and Audio Power Management. To launch the SoundMAX Control Panel, follow the steps below. 1. Click Start and click Control Panel. 2. If you are viewing the Control Panel in Category View, click on Switch to Classic View. 3. Double-click the SoundMAX icon. The Microphone Setup allows you to optimize the microphone input settings for your particular configuration. Choose Standard Microphone if you have an ordinary desktop microphone. Choose Headset if you have a wearable microphone that is positioned directly in front of your mouth. You can launch the Setup Wizard from the Control Panel to help you to automatically set proper microphone input volumes and ensure that your voice input(s) are working correctly. As you speak into the microphone, the Sound Meter indicates the audio signal that your PC is receiving. The Noise Reduction enhancement helps to eliminate ambient noise from the voice input signal to provide a clean and clear signal to applications. This feature can be used with any microphone. The audio controller can be powered down when the audio function is idle. To enable the Audio Power Management, follow the steps below. 1. Clicked the Power Management tab. 2. Select the Normal Power Savings in the Power Mode pull-down list. TECRA M2 4-19

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TECRA M2
4-19
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 speaker, “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 side bars to adjust the
volume level or click
Mute
at the bottom of the panel.
SoundMAX control panel
The SoundMAX control panel lets you control additional functions for the
Microphone Enhancement and Audio Power Management. To launch the
SoundMAX Control Panel, follow the steps below.
1.
Click
Start
and click
Control Panel.
2.
If you are viewing the Control Panel in Category View, click on
Switch
to Classic View
.
3.
Double-click the
SoundMAX
icon.
The
Microphone Setup
allows you to optimize the microphone input
settings for your particular configuration. Choose
Standard Microphone
if
you have an ordinary desktop microphone. Choose
Headset
if you have a
wearable microphone that is positioned directly in front of your mouth.
You can launch the
Setup Wizard
from the Control Panel to help you to
automatically set proper microphone input volumes and ensure that your
voice input(s) are working correctly. As you speak into the microphone, the
Sound Meter indicates the audio signal that your PC is receiving.
The
Noise Reduction
enhancement helps to eliminate ambient noise from
the voice input signal to provide a clean and clear signal to applications.
This feature can be used with any microphone.
The audio controller can be powered down when the audio function is idle.
To enable the Audio Power Management, follow the steps below.
1.
Clicked the
Power Management
tab.
2.
Select the
Normal Power Savings
in the Power Mode pull-down list.