1.  6/1/2010 9:32 AM 2.  3 DAY 3.  MC3190 WM 6.1 BSP 19 4.  2146936 Lucas Systems Inc has the following queries: 1.  Does AUDIOEX_SetRegistryContext work on a 3190 the same way it works on a 9090, 4090 and 3090? The reason I ask is we received SystemAudioGains.reg as a potential solution for case #2092469. It contains the following [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT] [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT\Speakerphone] [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT\Headset] Etc. Below is a code fragment from our voice application. wcscpy(wzContextKey, L"\\DEFAULT "); dwAudResult = AUDIOEX_SetRegistryContext(wzContextKey); if (dwAudResult != E_AUDEX_SUCCESS) { WriteLogInternal( pszInstTag, szFuncTag, PALLogLvE, "SetRegistryContext call failed" ); ReturnVal(FALSE); } 2.  Does setting the registry context to DEFAULT just use [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT] or use the set including [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT\Speakerphone] and [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT\Headset]? 3.   Do we need to something different than the code above to invoke HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev\DEFAULT\Headset]? 4. What registry keys can be used to change the headset mic gain?