4 – Routing & assignment : Monitoring56 TASCAM DM-3200 User’s ManualTalkback, etc.The internal talkback microphone is located abovethe meters. The sensitivity of the microphone isadjusted using the T/B control next to the micro-phone.The TO SLATE and TO STUDIO keys are both“smart keys”. When active, they route the talkbackmicrophone to the busses and/or aux sends asselected below, and to the studio respectively, anddim the control room outputs.The MONO key (also a “smart key”) provides monocontrol room monitoring, combining the left andright signals into one mono signal.Talkback source However, note that the internaltalkback microphone does not have to be used as thetalkback source. Any one of the mic/line sources canbe selected as a communication source (for example,a boundary field microphone situated in a large con-trol room can allow comments from a productiongroup to be routed to the artistes in the studio).Select the talkback source (T/B SOURCE) in the MONI-TOR OSC/COM screen:Use the cursor to navigate to this field, the dial tomake the selection between INT T/B MIC (internalmicrophone) and MIC/LINE 1 through 16. Press ENTERto confirm the setting.Slate definition The COMMUNICATION fieldsallow you to choose the busses and aux sends whichwill act as the “slate” when the TO SLATE key isenabled for sending talkback. Any combination ofbusses, aux sends and the stereo buss can be selected(cursor keys and ENTER key) as slate destination.Linking of busses and aux sends has no effect on thisscreen.Oscillator and noise generatorIn order to help with signal tracing, the setting ofSPLs, etc., the DM-3200 provides an internal tone/noise generator.The POD 1 switch turns the generator on and off.Use POD 2 to set the type of generator: either a sine-wave oscillator (SINE), a white noise generator(WHITE), or a pink noise generator (PINK).POD 3 sets the frequency if the sine wave oscillatorhas been selected. There are four choices: 100Hz,440Hz (standard tuning A), 1kHz and 10kHz.POD 4 sets the level from –36dBFS to 0 dBFS in 0.5 dBsteps. Remember that –16 dBFS is the nominal level,so you can use this setting when setting up SPLs, etc.for your monitoring system.Oscillator destination Use the OSCILLATOR fields(cursor keys and ENTER key) to route the generatorfields to any combination of busses, aux sends or thestereo buss. This is an extremely useful “patch-free”method of signal tracing.Figure 4.11: Monitor oscillator andcommunication screen