cvc 1 mic BCSW-CVC-HS-4-3-1 调试指南

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【文件名】:12826@52RD_CSR_cvc_1_mic调试指南.pdf
【格　式】:pdf
【大　小】:2882K
【简　介】:BCSW-CVC-HS-4-3-1 调试指南
【目　录】:

Contents
1  Introduction ....................................................................................................................................................4
1.1  General....................................................................................................................................................4
1.2  Before You Begin ....................................................................................................................................4
2  Prerequisites ..................................................................................................................................................5
2.1  Parameter Manager Tooland UserGuide...............................................................................................5
2.2  SPI Communication Protocol Drivers ......................................................................................................7
2.3  Hardware Interfaces ................................................................................................................................7
3  Tuning Overview ............................................................................................................................................8
4  Tuning Preparation ........................................................................................................................................9
4.1  Before You Begin ....................................................................................................................................9
4.2  Headsets .................................................................................................................................................9
4.3  Phones and Networks .............................................................................................................................9
4.4  Tuning Environment ..............................................................................................................................10
4.5  Level SpeechPhrase ............................................................................................................................10
5  Instrumentation ............................................................................................................................................11
5.1  SPL Meter..............................................................................................................................................11
5.2  Head and Torso Simulator.....................................................................................................................11
6  Tuning Procedures ......................................................................................................................................12
6.1  Objective Measurement.........................................................................................................................12
6.2  Receive PathTuning .............................................................................................................................12
6.2.1  Load Preset Parameters ............................................................................................................12
6.2.2  Receive AGC .............................................................................................................................13
6.2.3  SPKR Gain.................................................................................................................................13
6.2.4  Noise Dependent Volume Control..............................................................................................14
6.3  Send Path Tuning..................................................................................................................................15
6.3.1  MIC Gain ....................................................................................................................................15
6.3.2  Send AGC ..................................................................................................................................16
6.3.3  Noise Suppression .....................................................................................................................16
6.3.4  Comfort Noise ............................................................................................................................17
7  Fine Tuning...................................................................................................................................................18
7.1  Receive Path .........................................................................................................................................18
7.1.1  Receive AGC .............................................................................................................................18
7.1.2  Setting Minimum Loudness ........................................................................................................19
7.1.3  Receive EQ ................................................................................................................................19
7.1.4  Clipper........................................................................................................................................19
7.1.5  Side Tone...................................................................................................................................20
7.1.6  Lost Packet Concealment ..........................................................................................................20
7.2  Send Path..............................................................................................................................................20
7.2.1  MIC Gain inNS Mode ................................................................................................................20
7.2.2  Acoustic Echo Canceller ............................................................................................................20
7.2.3  Send EQ ....................................................................................................................................21
7.2.4  Send AGC ..................................................................................................................................22
7.2.5  Noise Suppression .....................................................................................................................22
8  Tuning Preparation Checklist .....................................................................................................................23
9  Tuning Flowcharts .......................................................................................................................................24
9.1  cVc HS TuningOverview.......................................................................................................................24
9.2  SPKR Gain ............................................................................................................................................25
9.3  MIC Gain ...............................................................................................................................................26
9.4  NDVC, Part 1 of 2..................................................................................................................................27
9.5  NDVC, Part 2 of 2..................................................................................................................................28
Contents
CS-121967-UGP1
© Cambridge Silicon Radio Limited 2008
This material is subject toCSR’s non-disclosure agreement.
Page 3 of 33
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9.6  Noise Suppression ................................................................................................................................29
9.7  Comfort Noise........................................................................................................................................30
List of Figures
Figure 2.1: Accessing Headset Parameter Managerfrom UFE ..............................................................................5
Figure 2.2 Parameter Manager Window (Wide Band Example)..............................................................................6
Figure 2.3 CSR SDK software Setup Window with Driver Installation Option Selected ..........................................7
Figure 3.1: Processing Blocks on the Parameter Manager Window .......................................................................8
Figure 3.2: The Five cVc HS Tuning Stages ...........................................................................................................8
Figure 4.1: A Recorded Waveform of the English Phrase “one two three fourfive” ..............................................10
Figure 6.1: Receive PathProcessingBlocks ........................................................................................................12
Figure 6.2: Send Path Processing Block Diagram ................................................................................................15
Figure 7.1: Low Volume Mode Threshold Operation.............................................................................................21
List of Tables
Table 5.1: Recommended Meter Settings .............................................................................................................1

Glen_f

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qinfusheng

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caodiren

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duxz

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liangyoung2013

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danny_yangwei

哪位有BCSW-CVC-HS-5-5-1的格式啊？

Figger98

thank a lot