How to overcome echo during P2P Flash call in Chrome (PPAPI Flash)?

Question

P2P

I am making an application for P2P video calls using RTMP, RTMFP protocols.
Unfortunately, there is no way to get acoustic echo cancellation to work in PPAPI Flash used in Google Chrome. All other browsers are fine.
*PPAPI Flash is disabled in Chrome on the "chrome://plugins/" page.
Test application:
- via RTMP;
- via RTMFP (for now, manual transmission of peerID).
*When you click on the tilde - a log appears with the settings of the microphone and camera.
Sources - RTMP , RTMFP .
The following are used as a server: for RTMP - Wowza, for RTMFP - Cirrus.
Code for setting up and receiving a microphone:

private function getMicrophone():Microphone
{
    if (!Microphone.isSupported) { return null; }

    var mic:Microphone = Microphone.getEnhancedMicrophone();
    if (mic) {

        var options:MicrophoneEnhancedOptions = new MicrophoneEnhancedOptions();
        mic.enhancedOptions = options;
        
    } else {
        
        mic = Microphone.getMicrophone();
        if (!mic) { return null; }
    }

    mic.setUseEchoSuppression(true);
    mic.codec = SoundCodec.SPEEX;
    mic.setSilenceLevel(0);
    mic.framesPerPacket = 1;

    return mic;
}

Went through a lot of options, I just can not solve the echo problem.
There was only a crazy idea to try as a Flash Media Server.

Answer 1

Have you tried swapping lines?
mic.codec = "Speex"
mic.setUseEchoSuppression(true);