Knowledge Base

Notes

• You cannot add a microphone which is already in the list.
• To update the microphone list, click the Refresh button.
• The Status column indicates:
  • Device is connected and ready to use.
  • Device not found.
• Under Recordings you can find the number of recordings made with a specific microphone in that experiment.
• The Sample Rate (Hz) column shows the default sample rate:
  • For Noldus microphones: 384000.
  • For all other microphones: 44100.
• The Settings column specifies the microphone gain. See Adjust the Microphone Gain in UltraVox XT.
• The Microphone column shows the Windows name of the microphone. For Noldus full-sound spectrum microphones, this is the friendly name of the USB device detected in the Windows manager. You cannot edit this name.
• For microphones with sample rate 384 kHz, the name under Microphone begins with a number, which indicates the USB port the microphone is connected to.

Important: Because these microphones do not have a unique ID, if you switch microphones between USB ports, UltraVox XT does not "know" that. Always label microphones and USB ports, so you know which microphone (and cage) is connected to which port.

Problem: Microphones Not Recognized After Sleep

The computer went to sleep. After restarting, UltraVox XT does not recognize the microphones.

Solution

1. Disconnect and reconnect the USB cable of the hub to the same USB port of the UltraVox XT computer.
2. In UltraVox XT, open the Experiment Settings, and click the Refresh button.
3. If you see a cross symbol next to a microphone, click the button in the Microphone column and make sure to reselect the same microphone. The microphones will keep the same microphone name as before.

Problem: Microphone Not Recognized After Clicking Settings

After clicking the Settings button for a microphone in the Experiment Settings, an error message appears.

Solution

1. Plug the microphone into the correct USB port of the PC.
2. In the Experiment Settings, click the Refresh button.
3. If the microphone was plugged into the correct port, the green symbol should appear under Status.
4. Select the check box under Selected.

If the microphone is not recognized, it may have been plugged into a USB port different from the previous time. Follow the procedure in The Microphone Name Has Changed.

Problem: Microphone Name Has Changed

In the Experiment Settings, the name under Microphone has a number in front. For example, Pettersson M500-384-1 changed to 2-Pettersson M500-384-1.

Explanation and Solution

This happens when you plug the microphone into a USB port different from the one used when the microphone was first connected. Close UltraVox XT and, for microphones with a name beginning with 2-, swap the USB-A connectors that go to the USB card or hub. When reopening the software, all microphone names should appear as before, without the 2- prefix.

Even if the name under Microphone in the Experiment Settings changes, you can still use that microphone. The name does not affect data recording. However, make sure you know which microphone is associated with which cage by labeling the microphones and the USB ports on your computer.

In all cases:

1. Plug the microphone into the correct USB port, then click Refresh.
2. Click the select button under Microphone.
3. Choose the microphone from the list, then click the Settings button to verify that the signal is received.

Source: UltraVox XT 4 - MICS, Noldus Information Technology