TASCAM Celesonic US-20x20 Reference Manual V2.10 - Page 28

7 - Operation modes Press the MODE button on the front of the unit to change the operation mode used. The MODE indicator lights for the currently active operating mode. This unit has the following three operating modes. • MIC PRE The unit operates as a microphone preamp. • AUDIO I/F The unit operates as an audio interface. • MIXER The unit operates as a digital mixer. Using the unit as a microphone preamp When the MIC PRE MODE indicator on the front of the unit is lit, you can use the unit as a microphone preamp. NOTE • The default sampling frequency in mic preamp mode is 44.1 kHz. • When the unit is in mic preamp mode, you cannot make settings on the "MIXER" page. If you click the "MIXER" tab, the following message will appear. • When the unit is in mic preamp mode, you cannot change settings in the output signal selection area of the "OUTPUT SETTING" page. The following message will appear if you try to change the settings. (See "OUTPUT SETTING page" on page 22.) Changing the sampling frequency in mic preamp mode Use the following settings to change the sampling frequency (44.1 kHz by default) in mic preamp mode. 88 Windows Control Panel w Sound window w Speakers TASCAM US-20x20 w Properties (p) w US-20x20 Properties Advanced tab w Default Format 88 Mac Applications folder w Utilities folder w Audio MIDI Setup w Audio Devices window w US-20x20 w Format NOTE In mic preamp mode, the sampling frequency can also be changed from DAW software. Input and output channels in mic preamp mode In mic preamp mode, the routings between input and output channels are fixed as shown below. The input channels that can be output from the OPTICAL OUT jacks depends on the set sampling frequency. 44.1/48 kHz MIC/INST IN1 MIC/INST IN2 MIC/LINE IN3 MIC/LINE IN4 MIC/LINE IN5 MIC/LINE IN6 MIC/LINE IN7 MIC/LINE IN8 MIC/INST IN1-2 + MIC/LINE IN3-8 MIC/INST IN1-2 MIC/INST IN1-2 Input 88.2/96 kHz MIC/INST IN1 MIC/INST IN2 MIC/LINE IN3 MIC/LINE IN4 MIC/LINE IN5 MIC/LINE IN6 MIC/LINE IN7 MIC/LINE IN8 MIC/INST IN1-2 + MIC/LINE IN3-4 MIC/INST IN1-2 MIC/INST IN1-2 176.4/192 kHz MIC/INST IN1 MIC/INST IN2 MIC/LINE IN3 MIC/LINE IN4 MIC/LINE IN5 MIC/LINE IN6 MIC/LINE IN7 MIC/LINE IN8 MIC/INST IN1-2 MIC/INST IN1-2 MIC/INST IN1-2 Output LINE OUT 1 LINE OUT 2 LINE OUT 3 LINE OUT 4 LINE OUT 5 LINE OUT 6 LINE OUT 7 LINE OUT 8 OPTICAL OUT COAXIAL OUT LINE OUT 9-10 You can use the gain knobs of the channels to adjust each of their output levels. NOTE When shipped new from the factory, the LINE OUT 1-2 knobs are set at their minimum values, so no signals will be output from the LINE OUT 1-2 jacks. When using mic preamp mode, set the LINE OUT 1-2 knobs to their maximum values. 28 TASCAM US-20x20