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Table of Contents
Related Manuals for Audio Technica AT-DMM828
Summary of Contents for Audio Technica AT-DMM828
- Page 1 AT-DMM828 Digital Matrix Mixer Installation and Operation...
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Page 2: Important Safety Instructions
AT-DMM828 Digital Matrix Mixer Installation and Operation Warning: To prevent fire or shock hazard, do not expose this apparatus to rain or moisture. Caution: To avoid electric shock, do not open the cabinet. Refer servicing to qualified personnel only. To prevent fire, do not place any naked flame sources (such as lighted candles) on this apparatus. - Page 3 • Selectable manual mode overrides automatic functions • Linking capability for up to 16 units (up to 128 inputs) Up to 16 units of AT-DMM828 (a total of 128 channels inputs) can be daisy- chained via CAT6 cable, which carries control bus, audio, and configuration •...
- Page 4 7. External Control Connector (25-pin D-Sub Female) Use CAT6 cable. Maximum length is 0.5m. Provides external connection points to control AT-DMM828 using NOTE: Use high quality CAT6 cable when linking mixers. Signal contact closures degradation will occur with low quality cable or connections resulting in communication errors between mixers.
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Page 5: Installation And Setup
Connect a standard 9-pin RS232 type data cable (or USB cable) between the computer and the RS232 port on the back panel (the USB port on the front panel) of the AT-DMM828. If multiple AT-DMM828s are linked together, connect the data cable to the master unit in the linked chain. -
Page 6: Main Window
2. Light Blue color: Output block processing usage Online/Offline Indicator: Indicator will change to orange color when PC and AT-DMM828 are connected, and Communications Settings window External Settings: Double-click this icon to display External Control can be displayed by double-click this indicator... -
Page 7: Parameter Settings
Parameter Settings ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ Link Unit: Select the number of the system unit; change the number and 11. Threshold Min: The minimum dB that will trigger a gate to open. click the “Set”... -
Page 8: Software Settings
Port: The port where the mixer connect/disconnect to the PC Progressive Bar: The progress of connection will be displayed RS232 Control Port A rear panel RS232 port (9-Pin) is provided to allow for the connection of a computer running the AT-DMM828 Control Software application or external control ® ®... - Page 9 Customize the DSP block Adjust the internal block of this mixer in offline mode A block which you want to add is chosen from an operation block area and it dragging and dropping on the line of a channel. It can drop, if a line changes to pink. The number of the blocks which can be arranged to each channel has restriction.
- Page 10 Operations Blocks’ Descriptions ● 3 Band Equalizer Settings Double-click “Equalizer” block, 3 Band EQ will display the following window ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ Unit name and Channel No: The unit name and channel number to Frequency: To select the center frequency (Hz) for the current band;...
- Page 11 ● 4 Band Equalizer Settings Double-click “Equalizer” block, 4 Band EQ will display the following window ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ Unit name and Channel No: The unit name and channel number to Frequency: To select the center frequency (Hz) for the current band; which this block is set will be displayed range is from 20 Hz to 20 kHz (1 Hz stepping) Band: Click and select the band to adjust;...
- Page 12 ● All Pass Filter Setting Double-click “All Pass Filter” block, the following window will be displayed ① ② ③ ④ ⑤ ⑥ Unit name and Channel No: The unit name and channel number to Gain: Fixed at 0 dB (non-adjustable) which this block is set will be displayed Quality/Bandwidth: Adjust the quality of the filter;...
- Page 13 ● Low Pass Filter Setting, -12 dB/oct Double-click “Low Pass Filter” block, the following window will be displayed ① ② ③ ④ ⑤ ⑥ Unit name and Channel No: The unit name and channel number to Gain: Fixed at -3 dB (non-adjustable) which this block is set will be displayed Quality: Fixed at 0.71 (non-adjustable) Filter Type: Click to change to other filter type...
- Page 14 ● Low Pass Filter Setting, -6 dB/oct Double-click “Low Pass Filter” block, the following window will be displayed ① ② ③ ④ ⑤ ⑥ Unit name and Channel No: The unit name and channel number to Gain: Fixed at -3 dB (non-adjustable) which this block is set will be displayed Quality: Fixed at 0.71 (non-adjustable) Filter Type: Click to change to other filter type...
- Page 15 ● Low Shelving Filter Setting Double-click “Low Shelving Filter” block, the following window will be displayed ① ② ③ ④ ⑤ ⑥ Unit name and Channel No: The unit name and channel number to Gain: Adjust the amount of cut or boost applied by the filter; gain at 9 which this block is set will be displayed dB to -27 dB (0.1 dB stepping) Filter Type: Click to change to other filter type...
- Page 16 ● Limiter Setting Double-click “Limiter” block, the following window will be displayed ① ② ③ ④ ⑤ Attack time: Determines how quickly the limiter reacts to input level Ratio: Determines the intensity of gain reduction changes - Adjustable range is 1:1 to 20:1 (0.1 stepping) - Adjustable range is 0 to 2000 ms (1 ms stepping) Threshold: Determines what input level will trigger gain reduction Release time: Determines how quickly gain reduction is released,...
- Page 17 Unit and DSP Resource Monitor Orange color Input usage; Light Blue color Output usage Unit 0, Master Unit, Selection and its DSP Resource Usage Display Unit 1, Slave Unit 1, Selection and its DSP Resource Usage Display...
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Page 18: External Settings
(1 dB stepping) Output Gate – ON / OFF Output External Control Connector (25-Pin D-Sub) To increase the integration flexibility of the AT-DMM828 with external control and indicator devices, a rear panel connector (25-pin) is provide. Pin# Selectable Function Pin# Selectable Function... -
Page 19: Input Channel Settings
Input Channel Settings Double-click “Inputs” block, the following window will be displayed ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮ Gate control mode: To select Auto or Manual mode Input source: To select input source Audio input or White noise /Pink noise /Tone (for channel calibration) Correlation: To select Valid or Invalid Correlation of an input signal is judged and gate control of a contiguity... -
Page 20: Matrix Settings
Matrix Settings Double-click “Mixer” block, the following window will be displayed Disconnect all: when click on this button, all input channels are disconnected to all output channels; there is no output ① Diagonal: when click on this button, each input channel is only connect to one respective output channel Matrix Figure: Right-click on the point, to select the matrix connect or disconnect... -
Page 21: Output Channel Settings
Output Channel Settings Double-click “Outputs” block, the following window will be displayed ① ② ③ ④ Output level meter response: To select the RMS or PEAK metering Volume: Adjustable range is -80 to 0 dB (0.1 dB stepping) Channel name: To edit, double click the name and edit Mute button: To mute each output channel When 2 or more units linking together, the Main Window will display as follow:... - Page 22 Connect the USB cable to the mixer and PC “Offline” icon will change “Online” icon if it connects normally Turn Power Switch “ON” Start the AT-DMM828 Control Software Select “File” > “Open”> “DEMO.dmm828” Then the default block setting will be displayed Select “Setup”...
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Page 23: Specifications
Specifications Input Impedance Balanced 6600 ohms 8500 ohms Line Output Impedance Balanced 200 ohms Gain Range 26 to 51 dB 32 steps logarithmic scale Mic/Line Input Attenuation 30 dB Maximum Input Level Balanced, THD+N at 1 % -45 dBu (-47.2 dBV) Gain at Max -20 dBu (-22.2 dBV) Gain at Min...
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