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Troubleshooting

If iD4+ does not behave as expected, work through the relevant checks below in order. Begin with the physical connections and the selected input or output before changing advanced settings. For further help, visit https://support.audient.com.

iD4+ does not power on or the LED ring flashes during start-up​

  1. If the LED ring flashes and iD4+ does not start, the interface may not be receiving enough power. Check that the COMPUTER port is connected directly to a computer USB-C port capable of supplying 5 V / 3 A (15 W), using a USB-C to USB-C cable.
  2. If the interface remains unresponsive, disconnect and reconnect its USB connection and allow it to initialise.
  3. Try a different known-good USB cable or computer USB port if available. For testing, connect the interface directly rather than through a hub or dock.
  4. If the computer cannot supply 5 V / 3 A (15 W), or if you are connecting through a USB hub, connect a suitable external 5 V / 3 A USB-C power supply to ALT POWER using a USB-C to USB-C cable. A USB-A to USB-C cable cannot be used for external power. ALT POWER carries power only, not audio or control data.
  5. If the interface still does not initialise, contact Audient Support.

iD4+ is not recognised by the computer or iD Control​

  1. Check that the cable is connected to the COMPUTER port, not the ALT POWER port.
  2. Open iD Control and confirm that the correct interface is connected. Complete installation of the Audient Control Software Installer from your registered product in ARC if required.
  3. Close and reopen iD Control. If the interface remains unavailable, restart the computer and try again.
  4. In your DAW's audio preferences, select iD4+ as the input and output device. On Windows, select the Audient ASIO driver; on macOS, choose iD4+ as the Core Audio device.
  5. Try a direct USB connection and a known-good cable to rule out a connection issue.

A microphone or instrument is not reaching the DAW​

  1. Check the cable and the intended physical input. The four Mic/Line sockets record on Inputs 1–4. Connecting an instrument to JFET 1 or 2 takes the place of Mic/Line Input 1 or 2 respectively.
  2. For a microphone that requires phantom power, select its Mic/Line channel and enable +48 V. Check the microphone manufacturer's requirements before switching phantom power on.
  3. Set Input Gain manually or use Smartgain, and check that the relevant input meter shows activity. Raising the monitor mix fader will not increase the level recorded by the DAW.
  4. In the DAW, select the correct iD4+ hardware input on a mono audio track, enable recording and check the track's input meter.
  5. If the iD Control input meter shows signal but the DAW does not, check the DAW's audio-device selection, track input assignment and recording settings.

No sound from the speakers or headphones​

  1. Start with the output level turned down and check that the speakers or headphones are connected to the intended sockets. Raise the listening level gradually.
  2. Check Global Mute, individual output Mute states and the selected Main/ALT speaker destination in iD Control.
  3. Select HP1 or HP2 to focus the correct headphone output. Each has its own volume, source selection and Mute state.
  4. In iD Control, check that the required input or computer playback channel reaches the selected monitor mix and is not muted or turned down.
  5. If using ALT speakers or an Independent Mix, check that the correct output or headphone source is selected and that the mix is receiving audio.

DAW playback cannot be heard​

  1. In the DAW, select iD4+ as the playback device and check the stereo output assignment of the track or master bus.
  2. Start playback and confirm that the relevant computer-playback or Virtual channels in the iD Control Mixer show a signal.
  3. Check their faders, Mute states and the selected listening mix. The DAW may be playing correctly even if that playback is not included in the monitor mix.
  4. Check the active monitor or headphone output level and its destination. If you have selected an Independent Mix or direct Host playback for a headphone output, check that source independently.

Monitoring sounds doubled or delayed​

  1. Check whether the live input is being heard both through the iD Control Mixer and through software monitoring in the DAW.
  2. For low-latency monitoring through iD Control, disable the DAW's input-monitoring path for that track while leaving recording armed.
  3. If you intentionally need to hear DAW plug-ins while performing, monitor through the DAW instead and use an appropriately low, stable audio buffer size.

The signal clips, distorts or produces clicks​

  1. If an input is clipping, lower its Input Gain or repeat Smartgain while performing at the loudest expected level. Reducing the monitor fader will not repair an already clipped recording.
  2. If playback clicks or drops out during a demanding DAW session, increase the audio buffer size and test again.
  3. If the source uses optical digital audio, make sure that iD4+ and the connected equipment have a compatible digital format, matching sample rates and one clock master. Check Digital I/O & Clocking.
  4. Check audio cables and monitor levels, and test the problem with a simple DAW session before adding plug-ins or extra equipment.

Smartgain does not produce the expected result​

  1. Select the intended analogue input channels before starting the measurement. Smartgain does not set the gain of computer-playback or Loopback channels or optical digital inputs.
  2. Allow the countdown to finish and perform at the loudest level you expect during recording.
  3. Check whether the result reports a successful or unsuccessful measurement. If necessary, use Retry Failed or repeat the measurement with a longer duration or a more suitable target level.
  4. If the input remains silent, check the physical input connection and microphone power before trying Smartgain again.

Loopback is silent or contains the wrong audio​

  1. In the DAW or streaming application, choose the stereo Loopback input: Inputs 21+22.
  2. Open Settings > Routing > Loopback Source in iD Control and choose the source you intend to record.
  3. If Main Mix is selected, remember that monitor level, Mute, Dim, Mono and RoomTune correction affect the Loopback feed. A muted Main Mix can therefore also produce silent Loopback.
  4. If Virtual Thru is selected, confirm that the computer application is playing to the Virtual Outputs selected as the Loopback source. Virtual Thru bypasses the iD Control Mixer.
  5. Do not send the live Loopback recording track back into the same source mix: this can create an audio feedback loop.

RoomTune cannot complete a measurement​

  1. Use the Audient RM1 measurement microphone supplied with iD4+ and check its setup and serial-number confirmation in RoomTune.
  2. During automatic level setup, allow RoomTune to establish its 75 dB SPL measurement level. Do not change the hardware volume or input gain during the process.
  3. Follow the displayed microphone positions and hold the RM1 still while RoomTune measures. A complete measurement contains 26 positions.
  4. If the measurement is interrupted, use the available pause/resume instructions in RoomTune and complete the remaining positions before exporting the correction profile.

Optical digital inputs are silent or click​

  1. Check that the TOSLINK cable runs from the external device's digital output to iD4+'s optical input.
  2. Set the digital input to ADAT or optical S/PDIF to match the connected device, and use the same sample rate on both devices.
  3. Choose a single clock master. If the external digital source is the master, set iD4+ to the corresponding Digital clock source. If iD4+ is the master, configure the external device to follow an available digital or word-clock output.
  4. If fewer ADAT channels appear than expected, check the sample rate. At 88.2/96 kHz each optical ADAT port supports up to four channels; at 176.4/192 kHz, up to two channels.
  5. Check that the DAW is using the correct digital input channel.

An external processor connected to an insert is not heard​

  1. Check that the signal is entering the intended analogue channel and that the insert belongs to that channel (Inputs 1 and 2).
  2. Connect the corresponding INSERT SEND to the processor input, then connect the processor output to the matching INSERT RETURN.
  3. Check the external processor's input/output level and bypass state. The insert operates in the analogue input path before conversion, so its settings can affect what the DAW records.
  4. Check the recording meter and reduce input or processor output level if clipping occurs.

If the issue remains after these checks, contact Audient Support at https://support.audient.com with the interface model, computer operating system, iD Control version, DAW, connections used and a description of what you have already tried.