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  2. Fix problems with the AOL app on iOS

    help.aol.com/articles/fix-problems-with-the-aol...

    Verified for iOS 9.3 and later. 1. Double press the Home button or swipe up and hold. 2. Swipe up on the image of the app. 3. Re-launch the app and attempt to reproduce the issue.

  3. Fix problems reading or receiving AOL Mail

    help.aol.com/articles/fix-problems-reading-or...

    If you're having problems reading and retrieving your AOL Mail, the following troubleshooting steps: Use AOL Basic Mail. AOL Basic Mail gives you a way to see your emails in a simpler layout. This can often help when you're having problems retrieving mail on a slower connection speed. Reset your web settings

  4. iPhone and Android users told to stop sending texts after ...

    www.aol.com/iphone-android-users-told-stop...

    “Our suggestion, what we have told folks internally, is not new here: Encryption is your friend, whether it’s on text messaging or if you have the capacity to use encrypted voice communication ...

  5. Audio-to-video synchronization - Wikipedia

    en.wikipedia.org/wiki/Audio-to-video_synchronization

    If the sound source is 340 meters from the microphone, then the sound arrives approximately 1 second later than the light. The AV-sync delay increases with distance. During mixing of video clips normally either the audio or video needs to be delayed so they are synchronized. The AV-sync delay is static but can vary with the individual clip.

  6. Phone connector (audio) - Wikipedia

    en.wikipedia.org/wiki/Phone_connector_(audio)

    Alternatively, some switched audio jacks contain built-in isolated switches that only activate when the plug is fully inserted. [96] This can be used to avoid the insertion issue, for instance by wiring the connectors through a double pole, double throw switch that activates only upon full insertion. Or for instance by having the switch control ...

  7. Smartphone - Wikipedia

    en.wikipedia.org/wiki/Smartphone

    Some audio quality enhancing features, such as Voice over LTE and HD Voice have appeared and are often available on newer smartphones. Sound quality can remain a problem due to the design of the phone, the quality of the cellular network and compression algorithms used in long-distance calls.

  8. Echo suppression and cancellation - Wikipedia

    en.wikipedia.org/wiki/Echo_suppression_and...

    Once the connection is completed, they send their signals into the phone lines as normal, but also into the delay line. When their signal is reflected back, it is mixed with the inverted signal from the delay line, which cancels out the echo. This allowed both modems to use the full spectrum available, doubling the possible speed.

  9. Fault tolerance - Wikipedia

    en.wikipedia.org/wiki/Fault_tolerance

    For example, if component B performs some operation based on the output from component A, then fault tolerance in B can hide a problem with A. If component B is later changed (to a less fault-tolerant design) the system may fail suddenly, making it appear that the new component B is the problem.