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AUD speeches handle board failure cause low volume of voice sent by a site

Publication Date:  2012-09-22 Views:  185 Downloads:  0
Issue Description
Volume of voice received from all other sites is low, even direct faced with microphone.
Alarm Information
Handling Process
Diminish or remove the resistance on AUD board, the problem is solved.
Root Cause
A resistance on AUD board is to adjust speech gain. When the resistance value is high, the output voice volume is low. So when output voice volume is low, diminish or remove this resistance (please consult Huawei engineer for concrete operation).