IS2083/BM83 Echo Tuning

1 Quick References

1.1 Acronyms and Abbreviations

2 Signal Processing Flow

3 IS208x DSP GUI Configuration Tool

4 Voice Processing Functions

4.1 High-Pass Filter

4.2 Noise Reduction

4.3 Echo Cancellation

4.4 Digital MIC Gain

4.5 Comfort Noise

4.7 Speaker/MIC Gain Settings

5 Guidelines for Tuning Echo Cancellation Performance

5.1 Measurement (Step 1)

5.2 Set Receive Path Level (Downlink) Step 2

5.3 Set Send Path Level (Uplink) Step 3

5.4 Tune EQ (Step 4)

5.5 Fine Tune Echo (Step 5)

6 MIC and SPK Mechanical Design and Placement

6.1 Microphone Design and Placement

6.2 Speaker Design and Placement

7 Document Revision History

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