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From "Francesco Alagna (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLEX-34067) Acoustic echo issue on iPad
Date Fri, 31 Jan 2014 14:58:09 GMT
Francesco Alagna created FLEX-34067:

             Summary: Acoustic echo issue on iPad
                 Key: FLEX-34067
                 URL: https://issues.apache.org/jira/browse/FLEX-34067
             Project: Apache Flex
          Issue Type: Bug
    Affects Versions: Apache Flex 4.11.0
         Environment: iOS 6 and higher, iPad 3 and 4
            Reporter: Francesco Alagna

We have developed an iPad teleconferencing application based on Flex netStream (client) and
Red5 (server).

The first issue is that Microphone.getEnhancedMicrophone() is not available on iOS, hence
no advanced options are available (and no echo cancellation). 

Furthermore, after performing a call from an iPad, we noticed that an acoustic echo (on the
other side of the call) is heard both when using iPad internal microphone and speaker, and
when using external microphone and headphones. The echo is not there when using external headphones
with internal microphone (headphones with no microphone provided).

Since it's not possible to manually select the audio source (it is all managed internally
by the Flash player), we thought of some framework bug.

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