Toshiba M105-S3004 User Manual - Page 102

User's Manual 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 speakers is picked up in the microphone and amplified back to the speakers, 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 speakers (throughput) and the speakers volume is too loud or too close to the microphone. You can control throughput by adjusting the volume of your speakers 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. Using the internal modem If you purchased a computer model with a preinstalled internal modem, read this section for directions on connecting the modem. Refer to the online help files for the internal modem and for details on operation of your modem and modem software. NOTE: The internal modem does not support the voice functions. All data and fax functions are supported. CAUTIONS: 1. In case of a lightning storm, unplug the modem cable from the telephone jack. 2. Do not connect the modem to a digital telephone line. A digital line will damage the modem. 4-20 OPERATING BASICS