Glossary
ADAT: An optical multichannel digital-audio format used to connect compatible external preamps and converters. Channel availability depends on sample rate.
ALT Monitor Outputs: iD2's second stereo speaker connection, using Outputs 3–4.
ARC: Audient Resource Centre, used to register an interface and access its software downloads.
ASIO: A Windows audio-driver system commonly selected in professional DAWs to provide low-latency audio input and output.
Buffer Size: The number of audio samples processed together by the computer. Smaller buffers reduce software-monitoring delay but can increase CPU load.
Bus Power: Power supplied to the interface over the computer's USB connection.
Clock Source: The device or digital signal used as the timing reference for digital audio conversion.
Combi-jack: An input socket that accepts an XLR microphone connector or a quarter-inch jack for an appropriate line-level connection.
Comfort Reverb: DSP reverb intended to be heard in a monitor mix without being applied to the ordinary dry input sent to a DAW.
Core Audio: The audio system used by macOS, including for connecting audio interfaces to recording software.
DAW: Digital Audio Workstation; software used to record, edit, arrange and mix audio.
dBFS: Decibels relative to digital full scale. 0 dBFS is the maximum digital level; exceeding it results in clipping.
DSP: Digital Signal Processing; audio processing performed on the device or in a dedicated processing system rather than by DAW plug-ins.
GLOW: The iD2 hardware control that enables HMX and LIFT together.
Headroom: The difference between a signal's current peak level and the maximum level available without clipping.
HMX: The Analogue Tone Suite's harmonic-saturation process.
Independent Mix: A separate monitoring balance created using Mix A or Mix B, which can be sent to the headphone output without changing Main Mix.
Input Gain: The amplification applied to a microphone, line or instrument signal before it is converted to digital audio.
JFET Instrument Input: A high-impedance instrument connection intended for guitar, bass and similar sources.
Latency: The time delay between an audio event occurring and the corresponding signal being heard or recorded through a processing path.
LIFT: The Analogue Tone Suite's high-frequency lift function.
Loopback: Routing a selected internal monitor mix or computer-playback source back to the computer as a stereo recording input.
Record FX off: Enabled EQ and compression can be heard through the monitor mix while the DAW receives the unprocessed input.
Phantom Power (+48 V): Power supplied through a microphone input for compatible condenser microphones and other equipment that requires it.
Record FX on: Enabled EQ and compression are included in the signal sent to the DAW and become part of the recording.
RoomTune: Audient's monitor-correction system, used with an RM1 measurement microphone to create correction profiles for connected speakers.
Sample Rate: The number of digital audio samples captured or played each second, expressed in hertz or kilohertz.
Smartgain: A feature that measures selected analogue inputs while you perform and sets their recording gain automatically.
S/PDIF: A two-channel digital-audio format supported through the iD2 optical input.
TRS: Tip–Ring–Sleeve, a three-contact jack connector commonly used for balanced analogue connections or stereo headphones.
Virtual Thru: A routing source that sends a selected pair of computer playback channels directly to a physical output or Loopback, bypassing the iD Control Mixer.