Toshiba T2150CD Numeric Keypad and Arrow Key Overlay, Sampling Rate, Record Monitor, Mute

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 Record Monitor or Mute functions.

Record Monitor

This check box feature in the Recording Control Utility controls throughput from the microphone to the speaker during recording. When the sound system software is installed for the first time, this feature’s default setting is off (no throughput). Turning it on may cause feedback during recording sessions. If this occurs, either turn down the speaker volume or turn off the Record Monitor option.

Mute

This button under the Mic control in the Mixer Utility controls the throughput from the microphone to the speaker during all functions except recording. When the sound system software is installed for the first time, this feature’s default setting is enabled (no throughput). Disabling the Mute feature may cause feedback during normal operation of the computer. If this occurs, either turn down your speaker volume or enable the Mute feature.

Sampling Rate

The option for 44.1 kHz sampling rate in the Extended Recorder Program has been removed due to the large system requirements needed to record at this sampling rate. Recordings made at this sampling rate could be distorted. For distortion free recording please use the 22.05 kHz sampling rate.

Numeric Keypad and Arrow Key Overlay

You can use part of your keyboard as a ten-key keypad in either numeric mode (for numeric data entry) or arrow mode (for cursor and page control). The keypad overlay is indicated by white markings designating numbers and arithmetic functions for numeric entry or arrows and page indicators for cursor and page control.