"Preempted" Natural Recordings by Native Speakers
To take control or action before something happens or is done by someone else.
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.