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  2. Echo suppression and cancellation - Wikipedia

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

    The performance of an echo canceller is measured in echo return loss enhancement (ERLE), [3] [9] which is the amount of additional signal loss applied by the echo canceller. Most echo cancellers are able to apply 18 to 35 dB ERLE. The total signal loss of the echo (ACOM) is the sum of the ERL and ERLE. [9] [10]

  3. Network delay - Wikipedia

    en.wikipedia.org/wiki/Network_delay

    It specifies the latency for a bit of data to travel across the network from one communication endpoint to another. [1] [2]: 5 It is typically measured in multiples or fractions of a second. Delay may differ slightly, depending on the location of the specific pair of communicating endpoints.

  4. Round-trip delay - Wikipedia

    en.wikipedia.org/wiki/Round-trip_delay

    RTT is a measure of the amount of time taken for an entire message to be sent to a destination and for a reply to be sent back to the sender. The time to send the message to the destination in its entirety is known as the network latency, and thus RTT is twice the latency in the network plus a processing delay at the destination. The other ...

  5. Network performance - Wikipedia

    en.wikipedia.org/wiki/Network_performance

    The speed of light imposes a minimum propagation time on all electromagnetic signals. It is not possible to reduce the latency below = / where s is the distance and c m is the speed of light in the medium (roughly 200,000 km/s for most fiber or electrical media, depending on their velocity factor).

  6. System Mechanic - AOL Help

    help.aol.com/products/system-mechanic

    Restore power, speed and stability with over 200 critical tests and 50 tools using the go-to solution for ultimate PC performance and trouble-free computing.

  7. Race condition - Wikipedia

    en.wikipedia.org/wiki/Race_condition

    They are due to interaction between gates. It can be eliminated by using no more than two levels of gating. An essential race condition occurs when an input has two transitions in less than the total feedback propagation time. Sometimes they are cured using inductive delay line elements to effectively increase the time duration of an input signal.

  8. Explicit Congestion Notification - Wikipedia

    en.wikipedia.org/wiki/Explicit_Congestion...

    Congestion may be handled only by the transmitter, but since it is known to have happened only after a packet was sent, there must be an echo of the congestion indication by the receiver to the transmitter. Without ECN, congestion indication echo is achieved indirectly by the detection of lost packets.

  9. AOL Mail

    mail.aol.com/?offerId=netscapeconnect-en-us

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!