The intent of this document is to present suggestions on how to increase sound quality of VoIP Speaker Phones built upon the basic design of VLSI Solution’s VS1000+1003 VoIP Speaker Phone demonstration units. This is done by analyzing acoustic feedback that can have an adverse effect on sound quality. The document also gives some hints on how to minimize the effect of acoustic feedback

VS1003 VoIP回音消除\Acoustic\boot.img
...................\........\eeprom.bin
...................\........\mem_desc
...................\........\Noise32k.wav
...................\........\prom1.bat
...................\........\prom2.bat
...................\........\prom3.bat
...................\........\prom4.bat
...................\........\run.cmd
...................\........\vs3emu.exe
...................\Documentation\VoipAcousticV211.pdf
...................\.............\VoipBomListSchemaV16.txt
...................\.............\VoipManualV220.pdf
...................\.............\VoipPresentationV200.pdf
...................\.............\VoipSchematicsV16.pdf
...................\Firmware\boot.img
...................\........\eeprom.bin
...................\........\mem_desc
...................\........\prom1.bat
...................\........\prom2.bat
...................\........\prom3.bat
...................\........\prom4.bat
...................\........\run.cmd
...................\........\vs3emu.exe
...................\LayoutSchemaV16\spvoip16-01.dxf
...................\...............\spvoip16-02.dxf
...................\...............\spvoip16-03.dxf
...................\...............\spvoip16-04.dxf
...................\...............\spvoip16-05.dxf
...................\...............\spvoip16-06.dxf
...................\...............\spvoip16-07.dxf
...................\...............\spvoip16-08.dxf
...................\...............\spvoip16.G01
...................\...............\spvoip16.G02
...................\...............\spvoip16.G03
...................\...............\spvoip16.G04
...................\...............\spvoip16.G05
...................\...............\spvoip16.G06
...................\...............\spvoip16.G07
...................\...............\spvoip16.G08
...................\...............\spvoip16.nc
...................\...............\spvoip16.NTR
...................\...............\spvoip16.tc
...................\...............\spvoip16.txf
...................\...............\spvoip16_drl.txt
...................\...............\spvoip16_pcb1.pdf
...................\...............\spvoip16_pcb2.pdf
...................\Acoustic
...................\Documentation
...................\Firmware
...................\LayoutSchemaV16
VS1003 VoIP回音消除

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