User manual JBSYSTEMS USB AUDIO CONVERTER V2.1

[. . . ] No naked flame sources, such as lighted candles, should be placed on the appliance. In the event of serious operating problems, stop using the appliance and contact your dealer immediately. Due to safety reasons it is prohibited to make unauthorized modifications to the unit. INSTALLATION GUIDELINES: Install the unit in a well-ventilated location where it will not be exposed to high temperatures or humidity. [. . . ] To prevent fire or shock hazard, do not expose this appliance to rain or moisture. To avoid condensation to be formed inside, allow the unit to adapt to the surrounding temperatures when bringing it into a warm room after transport. Condense sometimes prevents the unit from working at full performance or may even cause damages. For more information on connections, please refer to the next chapter. PS: Before installing the software from the CDROM, you can check the (http://audacity. AUDIO INPUT: use this cinch (RCA) input to connect the analog audio equipment you want to record from. GROUND CONNECTION: use this screw only to connect the eventual earth wire from your turntable. AUDIO OUTPUT: you can use the USB audio converter also as an (additional) sound card for your PC or laptop. In that case you have to connect this output to an amplifier or other line level input. AUDIO INPUT SWITCH: used to adapt the audio input (see n°1) to the equipment that is connected: LINE position: you can connect any line level audio output to record it on your computer. (internal RIAA amplifier is activated) If possible, please also use the ground connection (see n°2). LINE INPUT SENSITIVITY: line signals coming from different equipment can differ a lot. Most CDplayers have 2V output while the output from a tuner or cassette deck is often not more than 350mV. You can use this knob to optimize the sensitivity of the incoming line signal, refer to the peak indicator (6) for the optimal setting. POWER/PEAK LED: this indicator is green when the unit receives power from the USB connecter on your computer. When the line input is too high (input overload) this indicator turns red. In this case use the line input sensitivity knob (5) to lower the input. USB CONNECTOR: used to connect the USB audio converter to your computer. Choose USB AUDIO CODEC as playback device from the drop down menu if you want to use the USB audio converter as soundcard for playback of your files. Click the INTERFACE tab and check if your preferred language exists in the drop down menu. [. . . ] Important remark: To be able to save your recording as an MP3 file you have to install the optional encoder first. Please refer to the Audacity website for more information on how to do this. SOME NICE EFFECTS AND TOOLS TO LOOK AT: NOISE REMOVAL: tool to remove the noise from your recordings. NORMALIZE: tool to put all recordings at the same recording level (preferable at 0dB) CLICK REMOVAL: tool to remove small clicks and popping noises. [. . . ]