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  2. Latency (audio) - Wikipedia

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

    Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters a system, and when it emerges.Potential contributors to latency in an audio system include analog-to-digital conversion, buffering, digital signal processing, transmission time, digital-to-analog conversion, and the speed of sound in the transmission medium.

  3. JACK Audio Connection Kit - Wikipedia

    en.wikipedia.org/wiki/JACK_Audio_Connection_Kit

    JACK Audio Connection Kit (or JACK; a recursive acronym) is a professional sound server API and pair of daemon implementations to provide real-time, low-latency connections for both audio and MIDI data between applications.

  4. Echo suppression and cancellation - Wikipedia

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

    Echo cancellation mitigated this problem. During the call setup and negotiation period, both modems send a series of unique tones and then listen for them to return through the phone system. They measure the total delay time, then configure a delay line for that same period. Once the connection is completed, they send their signals into the ...

  5. Group delay and phase delay - Wikipedia

    en.wikipedia.org/wiki/Group_delay_and_phase_delay

    The group delay and phase delay properties of a linear time-invariant (LTI) system are functions of frequency, giving the time from when a frequency component of a time varying physical quantity—for example a voltage signal—appears at the LTI system input, to the time when a copy of that same frequency component—perhaps of a different physical phenomenon—appears at the LTI system output.

  6. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    The term 1-dimension refers to a simple pistonic relationship between the noise and the active speaker (mechanical noise reduction) or between the active speaker and the listener (headphones). Protection of a 3-dimensional zone requires many microphones and speakers, making it more expensive.

  7. Fix problems reading or receiving AOL Mail

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

    Most problems with viewing image attachments in AOL Mail can be fixed with a bit of trouble shooting. Try again later. If you've tried everything else and you're still not seeing images, it may be best to try again later. The problem could be caused by server delays due to a lot of people accessing their email at once.

  8. More work, same salary. How employees should respond to a ...

    www.aol.com/more-same-salary-employees-respond...

    This story has been updated to fix a typo in a quote. This article originally appeared on USA TODAY: What is a 'dry promotion?' Responding to more work for same pay. Show comments.

  9. Audio-to-video synchronization - Wikipedia

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

    Presentation time stamps (PTS) are embedded in MPEG transport streams to precisely signal when each audio and video segment is to be presented and avoid AV-sync errors. . However, these timestamps are often added after the video undergoes frame synchronization, format conversion and preprocessing, and thus the lip sync errors created by these operations will not be corrected by the addition ...