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The AV-sync delay is normally fixed. External AV-sync errors can occur if a microphone is placed far away from the sound source, the audio will be out of sync because the speed of sound is much lower than the speed of light. If the sound source is 340 meters from the microphone, then the sound arrives approximately 1 second later than the light.
Public speaking, also called oratory, is the practice of delivering speeches to a live audience. [3] Throughout history, public speaking has held significant cultural, religious, and political importance, emphasizing the necessity of effective rhetorical skills. It allows individuals to connect with a group of people to discuss any topic.
NSA membership is available to paid professional speakers, entrepreneurs, authors, coaches and podcasters. [10] Membership criteria include documented experience in professional speaking, such as earning a minimum income from speaking engagements, delivering a certain number of paid speeches annually, or combining paid speaking with other income-generating services like coaching or training.
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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.
Even Whitney Houston lip-synced. Justin Stoney swears he needs no more than five seconds to determine if a Super Bowl halftime artist is lip-syncing or not.
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Extemporaneous Speaking (Extemp, or EXT) is a speech delivery style/speaking style, and a term that identifies a specific forensic competition. The competition is a speech event based on research and original analysis, done with a limited-preparation; in the United States those competitions are held for high school and college students.