"Preempting" Natural Recordings by Native Speakers
To act before something happens in order to gain an advantage or prevent the other person from doing something. It means taking the initiative to do something before someone else has a chance to do it, often to prevent a possible negative outcome or to strengthen one's position.
Having or showing a rapid onset of hypertension (high blood pressure) and protein in the urine during pregnancy. This is a condition that typically develops during the second or third trimester of pregnancy and can be a serious complication for both mother and baby.
Preemphasis is a technique used in audio and telecommunications where the frequency response of a signal is intentionally modified before it is encoded or transmitted. This is done to make it easier to transmit over long distances or through noisy channels.<br><br>In audio equipment, preemphasis, also known as equalization, is used to boost the signal strength of low-frequency sounds, making them more audible in the presence of noise or hiss. This is particularly important in radio broadcasting, where the high-frequency signals can be attenuated more easily, causing the reception of news programs and other spoken word content to become muffled.<br><br>In speech processing, preemphasis can be used to prioritize certain frequencies that are more relevant to the human voice, such as the mid-frequency range, where most of the power of speech is concentrated. This can help improve the overall intelligibility of speech signals, particularly in noisy environments.<br><br>Preemphasis can be applied using analog or digital signal processing techniques, and is often used in various applications such as:<br><br> Audio compression: to optimize the signal-to-noise ratio (SNR)<br> Audio enhancement: to improve the quality of audio recordings<br> Broadcasting: to improve the intelligibility of spoken word content<br> Telecommunications: to improve the SNR of voice signals over long distances<br><br>There are two common types of preemphasis:<br><br> High-frequency emphasis: used to boost high-frequency content<br> Low-frequency emphasis: used to boost low-frequency content<br><br>It's worth noting that de-emphasis, the opposite of preemphasis, can also be applied to a signal after it has been transmitted or recorded to bring the frequency response back to its original level.