CSR v3.2 Manuale Utente

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Combined AV Headset Application 
 
blab-ug-005Pa 
© Cambridge Silicon Radio Limited 2005 
This material is subject to CSR’s non-disclosure agreement. 
Page 13 of 24
 
 
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Combined A
V Headset U
ser Guide
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Step 2: Building the MP3 decoder 
Build the MP3 decoder application by opening the mp3_decode workspace and selecting build in xIDE. The 
mp3_decode
 workspace can be built in exactly the same way as the 
sbc_decode
 workspace in section 5.1 
Step 4. 
Once the 
mp3_decode
 application has been built go back to section 5.1 step 3 and continue with building the 
av_headset_hfp
 application. 
5.3 
CVC echo cancellation and noise reduction software 
To include CVC (Clear Voice Capture) echo cancellation and noise reduction simply add the define symbol 
INCLUDE_CVC
 to the 
Project Properties / Define symbols
 field before building the 
av_headset_hfp.xiw
 
project. 
Note:   The CVC software is supplied for demonstration purposes only, is time limited and will become inactive after 
processing data for five minutes. 
The ParamMgr Utility can be used to fine tune the CVC code to optimise the performance based on the acoustic 
characteristics of your product. Please see the ParamMgr User guide (CSR reference blab-ug-007Pa). 
5.4 
Restoring Factory Chip Settings 
The factory settings can be restored using the PSTool application supplied with BlueLab v3.2. 
To restore the factory default settings using PSTool: 
 
1.  Open the PSTool application.  
 
Note: The 
PSTool.exe
 can be found in the BlueLab install directory 
\tools\bin\PSTool.exe
 
 
The Choose transport dialog appears: 
 
 
2. Select 
SPI BCCMD
 and 
LPT1
 as the transport settings and click 
OK