[Linphone-developers] I tried to make linphone echo cancellation work wi

Hello, Dear all developers

I tried to make linphone echo cancellation work with asus google Nexus 7 but experienced some problems.

I only added the following line "new BuiltInEchoCancellerModel("asus", "Nexus 7"), " in "/linphone-android/submodules/linphone/mediastreamer2/java/src/org/linphone/mediastream/video/capture/hwconf/Hacks.java"

private static BuiltInEchoCancellerModel[] mBuiltInEchoCancellerModels = new BuiltInEchoCancellerModel[] {

new BuiltInEchoCancellerModel("samsung", "GT-I9100"), // Samsung Galaxy SII

new BuiltInEchoCancellerModel("samsung", "GT-I9300"), // Samsung Galaxy SIII

new BuiltInEchoCancellerModel("asus", "Nexus 7"),

};

As the result, software echo cancellation calibration is turned off because linphone prorgrams detects hardware echo canceller of Asus Nexus 7

However, I still heard various echo in my test. I believe for some reason hardware echo canceller in Asus Nexus 7 doesn't work.

I end up with no software and no hardware echo cancellation. My questions are

-Do I need another change in somewhere of Hacks.java?

-What are following souce code do with echo cancellation in Hacks.java?

-Does linphone only support few specific devices?

// HTC

private static final boolean isADR6400() {

return Build.MODEL.startsWith("ADR6400") || Build.DEVICE.startsWith("ADR6400");

} // HTC Thunderbolt

// Galaxy S variants

private static final boolean isSPHD700() {return Build.DEVICE.startsWith("SPH-D700");} // Epic

private static boolean isSGHI896() {return Build.DEVICE.startsWith("SGH-I896");} // Captivate

private static boolean isGT9000() {return Build.DEVICE.startsWith("GT-I9000");} // Galaxy S

private static boolean isSC02B() {return Build.DEVICE.startsWith("SC-02B");} // Docomo

private static boolean isGTP1000() {return Build.DEVICE.startsWith("GT-P1000");} // Tab

// LG with two cameras

private static final boolean isLGP970() {return Build.DEVICE.startsWith("LG-P970");}

Any suggestions and solutions? Thank you in advance for your attention

Happy coding.

From:	Wei Li
Subject:	[Linphone-developers] I tried to make linphone echo cancellation work with asus google Nexus 7 but experienced some problems.
Date:	Thu, 31 Jan 2013 19:51:14 +0000