Troubleshooting Network Audio Devices

Date Updated: October 8, 2019 FAQ #5904
Question:
I hear weird noises or hollow audio on the end of a conference call that uses Shure MXA or MXW microphones. How do I troubleshoot this?
Answer:

The best way to troubleshoot network audio system is to break the system into small sections that can be verified individually. The first step is always to listen directly to the Shure microphone in the room it is located in, which will require a Dante-enabled headphone amplifier and a pair of good headphones, like the Shure SRH840 or Shure SE425 Sound Isolating Earphones.

An MXWANI4 or MXWANI8 has a headphone port on the front of the unit that you can use to listen to any of the eight incoming streams. You can also temporarily route any Dante stream to an MXWANI to listen to it for testing purposes--just restore it when you are done. An Axient Digital receiver (AD4D or AD4Q) can also be used in a similar capacity.

If you don’t have an MXWANI4, MXWANI8, AD4D, or AD4Q, we recommend purchasing a Dante headphone amplifier from your local professional audio dealer. You can then use Dante Controller to route each channel of the microphone system directly to the headphones to listen to it individually.

If the audio is clear and present, the problem is not the Shure microphone--it may be a result of downstream processing in a DSP unit, or processing in the codec used for the call. However, if the audio is not good in the headphones, then you may need to troubleshoot the system or adjust the MXA910's lobe placement.