User manual OMNICRON ELECTRONICS TELECORDER UC-04B

[. . . ] Tele Corder Voice Logging Recorder UC-02B and UC-04B with UpCorder Software Tele Corder User Manual Version 2. 02-B-US, Rev. 3 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TeleCorder Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cable Connections and Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Configuring Channels for Operation in VAR (Voice Activated) Mode You will use the UpCorder program in your PC to select Phone Line recording (Voltage sensing start/stop mode) or VAR mode (Voice Activated Recording), and to change and confirm these and other operating parameters. Using your PC with the UpCorder program running, select Configure from the main screen. This will open the Recorder Settings screen as shown here. User Manual -- TeleCorder with UpCorder Software -- V 2. 02-B-US 10 a. Channel/Port Setup: Each channel (also called Port) in the recorder can be set to start and stop recording using either audio activation (VAR for Voice Activated Recording) or voltage sensing. Channels showing a check mark in the boxes labeled Port 1, Port 2, Port 3, or Port 4, are set for VAR recording. Channels with no checkmark indicate they are set for phone line recording. For any channel you want to start/stop recording using the phone line voltage sensing mode, click on the box for that channel to remove the check mark, then click the Write Hardware button to confirm any changes. With 2 channel UC-02B, disregard Port 3 and Port 4 settings. VAR Voltage Threshold: Set the threshold level to match the audio level on your audio source. 0: Extra Sensitive, suitable for weak audio sources with low background noise level; (for example, with weak earphone or line-out recording). 1: High Sensitivity, suitable for normal line level audio sources with low background noise levels; (normal phone handset earpiece audio or weak speaker of radio). 2: Mid Sensitivity, suitable for higher than normal audio levels and/or higher background noise levels; (for recording from a noisy phone line when voltage sensing cannot be used due to nonstandard voltages or with normal speaker audio from a radio). 3: Low Sensitivity, suitable for very high audio levels, and high background noise levels. Recording may stop if audio levels are too weak; (phone recording with non-standard and very noisy DC voltages, or extra loud radio audio). After making changes, click the button labeled Write Hardware to confirm any changes. You may be asked to un-plug and re-connect the TeleCorder USB cable to change the TeleCorder operating parameters that are set to the hardware inside of the TeleCorder. Changes to hardware settings should only be made when all channels are inactive. After settings have been changed, check to make sure all of the changes are functioning as expected. Turn-Off-Delay: If any channels have VAR selected for recording start/stop, also select one of the four turn-off-delay options (VAR Turn Off Delay); 4, 12, 32 or 100 seconds. This setting will help to prevent recordings from ending during quiet periods. Click the Write Hardware button to confirm any changes. If set to 12 seconds, a recording will stop after 12 seconds of silence. VAR TimeOut: If any channels have VAR selected for start/stop, set the TimeOut to one of the four choices; 20, 40, 60 or 120 minutes. [. . . ] Like other Pressure Zone Microphones, they use a miniature microphone capsule mounted near a sound reflecting plate. In this zone, direct sound from the source combines in phase at all frequencies with reflected sound. The benefits are many: 6 dB more sensitivity, 6 dB less noise, a wide smooth frequency response free of phase interference, excellent clarity, and consistent pickup anywhere around the microphone. A built-in amplifier provides a high level output. [. . . ]