Mic/Line In (I/O-22)
The Mic/Line In provides line-level input for devices with line-level outputs and microphones. The Mic/Line In converts the analog input signal to a digital signal and provides software controls before and after the convertor. Connections are made using two three-terminal Euro style connectors.
Controls
Analog
Control |
Function |
Default / Range |
---|---|---|
Peak Input Level (dBFS) |
Meters for each channel indicating the peak analog input level. The measurement is taken after the A/D converter, but before the Digital Gain. Use this meter in conjunction with the Max Input Level to obtain an input signal as close to 0dBFS as possible without actually clipping. |
Default = N / A Range = -100 to 20 |
Mic Detect (LED) |
When illuminated, the LED indicates that the system has detected a microphone connected to the input of the associated channel. |
Off / On |
Clip |
Red LED indicating if the signal is being clipped. |
Off / On |
Clip Hold |
Holds the clip indication until manually cleared. |
Off / On |
Phantom Power |
Toggle turning on and off phantom power to the microphone. |
Off / On |
Preamp Sensitivity (dBu) |
The maximum analog level, coming into the Mic/Line Input card, that can be converted without clipping. This level is typically set slightly higher than the source's output level, so that the Peak Input Level reads about 0 dBFS without actually clipping. You can select the field and enter the value you want, or click and drag the number to the value. Varies inversely with the Preamp Gain. |
Default = 9 Range = 12 to -56 |
Preamp Gain (dB) |
The amount of Gain applied to the incoming analog signal level. Varies inversely with the Preamp Sensitivity. |
Default = 3 Range = 0 to 68 |
Digital
Control |
Function |
Default / Range |
---|---|---|
Invert |
Toggle button to invert the digital output of the Mic/Line input card. |
Off / On |
Mute |
Mutes the output signal. |
Off / On |
Gain (dB) |
Controls the Gain of the digital output signal. |
Default = 0 Range = -100 to 20 |
Status
Control |
Function |
Default / Range |
---|---|---|
Status |
Component status is conveyed with the Status LED and Status box, which uses both color and text to indicate the current condition:
|
N / A |
Properties
There are no adjustable properties for the I/O-22 Mic/Line In card. However, when the component is selected, you can select some of the Properties available for the entire IO/22 component. For an explanation of these properties refer to the IO/22 Status topic.
Control Pins
The available Control Pins depend on settings in Properties.
Pin Name |
Value |
String |
Position |
Pins Available |
---|---|---|---|---|
Clip |
0 1 |
false true |
0 1 |
Input / Output |
Clip Hold |
0 1 |
false true |
0 1 |
Input / Output |
Digital Level |
-100 to 20 |
-100 dB to 20 dB |
0.000 to 1.00 |
Output |
Gain |
-100 to 20 |
-100 dB to 20 dB |
0.000 to 1.00 |
Input / Output |
Invert |
0 1 |
normal invert |
0 1 |
Input / Output |
Max Level |
27.0 to -55 |
27.0 to -55 |
0 to .988 |
Input / Output |
Mute |
0 1 |
unmute mute |
0 1 |
Output |
Phantom Power |
0 1 |
disable enable |
0 1 |
Input / Output |
Status |
0 1 2 3 4 |
OK (green) Compromised (orange) Fault (red) Unknown (red) Updating (blue) |
0 0.250 0.500 0.750 1.00 |
Output |