The problem of Microphone.getEnhancedMicrophone() in AIR SDK 23

[#1]

I am developing an android and iOS chatting app using air SDK 23.0 in flash builder 4.7.

The chatting server is Red5 0.6.

The mobile source code is following.

var devMic:Microphone = Microphone.getEnhancedMicrophone(); 

devMic.setUseEchoSuppression(true);

devMic.setLoopBack(false); 

devMic.gain = 80; 

devMic.rate = 11;

devMic.codec = SoundCodec.NELLYMOSER; 

devMic.addEventListener(StatusEvent.STATUS, onMicStatus); 

... ... ...

outStream = new NetStream(this);

if (useMic)

    outStream.attachAudio(devMic); // the phone speaker volume is lower and is impossible to hear.

outStream.publish(chatInfo.user_id, "live");

I use Microphone.getEnhancedMicrophone() function,

In this case, the microphone volume of my android is normal and the other side hears normally.

But the phone's speaker sound is so low I can not hear each other's words.

The above problem does not occur with the iPhone.

Before AIR SDK 23 released, I used Microphone.getMicrophone() with AIR SDK 22.0, The above problem does not occur with the android but has the echo problem.

What is the cause of this problem?

Please help me...

[#2]

I am developing an android and iOS chatting app using air SDK 23.0 in flash builder 4.7.

The chatting server is Red5 0.6.

The mobile source code is following.

var devMic:Microphone = Microphone.getEnhancedMicrophone(); 

devMic.setUseEchoSuppression(true);

devMic.setLoopBack(false); 

devMic.gain = 80; 

devMic.rate = 11;

devMic.codec = SoundCodec.NELLYMOSER; 

devMic.addEventListener(StatusEvent.STATUS, onMicStatus); 

... ... ...

outStream = new NetStream(this);

if (useMic)

    outStream.attachAudio(devMic); // the phone speaker volume is lower and is impossible to hear.

outStream.publish(chatInfo.user_id, "live");

I use Microphone.getEnhancedMicrophone() function,

In this case, the microphone volume of my android is normal and the other side hears normally.

But the phone's speaker sound is so low I can not hear each other's words.

The above problem does not occur with the iPhone.

Before AIR SDK 23 released, I used Microphone.getMicrophone() with AIR SDK 22.0, The above problem does not occur with the android but has the echo problem.

What is the cause of this problem?

Please help me...

[#3]

Hi Jadestar,

Please try using below android permission in app.xml:

"MODIFY_AUDIO_SETTINGS"

Also, do some more modifications in code as:

devMic.gain = 80;

devMic.rate = 22;

devMic.codec = SoundCodec.SPEEX;

Let us know if the problem still persists and kindly share a sample project with us.

Thanks,

Adobe AIR Team

[#4]

Thank you for your answer.

I  have already set  MODIFY_AUDIO_SETTINGS in my app.xml.

This is as follow:

<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>

and I have already set as you send the method. But the problem is equal.

How do I share my project for you? Please give me a way to share.

Thanks.

[#5]

Hi Jadestar,

Please share it through Dropbox.

We will investigate it further.

Thanks,

Adobe AIR Team

[#6]

I shared source code in dropbox

The link is following as:

Dropbox - PrisonerChat-test.rar

[#7]

Hi Jadestar,

Could you please help me by giving some guidelines to use the project that you shared.

I have successfully imported the project in Flash Builder. But when I started debugging, I got stream error with the URL mentioned in config.as. I changed the URL with my local server address but I got no success so far.

Could you please provide us some steps that is required to use the project for establishing a successful connection between iOS and Android device.

Thanks,

Adobe AIR Team

[#8]

Hi Jadestar,

We are having one related bug in our bugbase. Please go through below link:

Bug#4195154 - Enhanced microphone causes wrong audio output to be used - small speaker instead of ha...

Kindly let me know if the issue at your end is similar to this bug.

Thanks,

Deepika

Adobe AIR Team

[#9]

The running environment of this project is not simple.

So I am preparing the environment of testing for you.

Thanks.

[#10]

Hi Jadestar,

We have investigated it further and found that if we use SoundMixer.useSpeakerphoneForVoice = true; in our actionscript code the application seems to be working fine.

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/media/SoundMixer.html

Kindly test it at your end and let us know about the results.

Thanks,

Adobe AIR Team

[#11]

Hi, I am not sure if this issue was resolved, but I am experiencing the same issue:

Android 4/5/6, Air 23 SDK

"MODIFY_AUDIO_SETTINGS" in manifest

mic = Microphone.getEnhancedMicrophone();

mic.gain = 80;

mic.rate = 22;

mic.codec = SoundCodec.SPEEX;

SoundMixer.audioPlaybackMode = AudioPlaybackMode.VOICE;

SoundMixer.useSpeakerphoneForVoice = true;

And I still get echo.

Thanks.