I/O-22 Mic/Line In Component

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.

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.

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

Displays the current status of the card both in text and color. The following is a list of possible status colors, and some example conditions.

Note: These conditions are examples, and may not be applicable to all components with a Status field.

OK – Green – (0) – Audio is good, hardware is good.

Compromised – Orange – (1) – Audio is good but a redundancy mechanism is active (one LAN down but the other is still up) or a non-fatal hardware problem exists (fans too slow, temperature higher than expected, etc.)

Fault – Red – (2) – Audio is not passing, or hardware is malfunctioning or mis-configured (amplifier power off, audio streams broken, wrong type of I/O Card installed, loudspeaker short circuit, etc.)

Missing – Red – (3) – A piece of hardware, defined in the design, has not been discovered. Audio is not passing through that piece of hardware.

Initializing – Blue – (5) – In the process of firmware, configuration update, and design start. Audio is obviously bad.

Not Present – Gray – A virtual component in the design, that is designated as Dynamically Paired, and Not Required ,has no hardware assigned to it.

Clip

0

1

false

true

0

1

Clip Hold

0

1

false

true

0

1

Digital Level

-100 to 20

-100 dB to 20 dB

0.000 to 1.00

Gain

-100 to 20

-100 dB to 20 dB

0.000 to 1.00

Invert

0

1

normal

invert

0

1

Max Level

27.0 to -55

27.0 to -55

0 to .988

Mute

0

1

unmute

mute

0

1

Phantom Power

0

1

disable

enable

0

1

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