Publication Date: 2019-05-14 | Views: 292 | Downloads: 0 | Author: 15292860971 | Document ID: EKB1100015166
A TE30 does not generate noises when it is connected to an external audio mixer. After the TE30 joins the conference, background noise and current noise are generated.
1. Connect the microphone directly to the TE30 to check whether there is background noise or current noise. If there is no noise, the problem is caused by the cable or audio mixer.
2. Check whether the TE30, audio mixer, and microphone are grounded together.
If devices are not grounded together, the common-mode interference cannot be effectively eliminated.
Make sure that the microphone, audio mixer, and TE30 are grounded together. After the change of grounding, noises disappear.