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.

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.

Analog

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 0 dBFS as possible without actually clipping.

Mic Detect (LED) 

When illuminated, the LED indicates that the system has detected a microphone connected to the input of the associated channel.

Clip

Red LED indicating if the signal is being clipped.

Clip Hold

Holds the clip indication until manually cleared.

Phantom Power

Toggle turning on and off phantom power to the microphone.

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.

Preamp Gain (dB)

The amount of Gain applied to the incoming analog signal level.

Varies inversely with the Preamp Sensitivity.

Digital

Invert

Toggle button to invert the digital output of the Mic/Line input card.

Mute

Mutes the output signal.

Gain (dB)

Controls the Gain of the digital output signal.

Status

Status

Component status is conveyed with the Status LED and Status box, which uses both color and text to indicate the current condition:

  • OK: The device is functioning normally.
  • Initializing: The device is in the process of a firmware or configuration update, or the design is starting.
  • Compromised: The device is functioning, but a non-fatal problem exists. Refer to the Status box for details.
  • Missing: The device cannot be discovered.
  • Fault: The device is malfunctioning or is not properly configured. Refer to the Status box for details.
  • Unknown: This status appears during a Core reboot (for example, during a firmware update), or when a design is being uploaded to the Core and before it has started running.
  • Not Present: If applicable to the device, this status appears when the device is not connected to the network and its Is Required component property is set to 'No'. This status also appears if the device component's Dynamically Paired property is set to 'Yes', pairing has not been assigned in Core Manager, and the device component's Is Required property is set to 'Yes'. See Dynamic Pairing.

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