delayed automatic gain control

简明释义

延迟自动增益控制

英英释义

例句

1.The video conferencing software uses delayed automatic gain control to ensure clear audio even when participants speak at different volumes.

视频会议软件使用延迟自动增益控制以确保即使参与者的讲话音量不同也能清晰听到音频。

2.In radio broadcasting, delayed automatic gain control helps maintain a consistent sound level for listeners.

在广播中，延迟自动增益控制有助于为听众保持一致的音量水平。

3.The smartphone's camera features delayed automatic gain control to enhance low-light photography.

智能手机的相机具有延迟自动增益控制功能，以增强低光照摄影效果。

4.The audio engineer implemented delayed automatic gain control to manage the fluctuations in volume during the live concert.

音频工程师在现场音乐会上实施了延迟自动增益控制以管理音量波动。

5.With delayed automatic gain control, the recording quality improved significantly in varying acoustic environments.

在不同声学环境中，使用延迟自动增益控制后录音质量显著提高。

作文

In the realm of audio processing and telecommunications, one concept that stands out is delayed automatic gain control. This term refers to a technique used to manage the amplitude of audio signals in such a way that the output remains at a consistent level, despite variations in the input signal strength. The primary purpose of delayed automatic gain control is to prevent distortion and ensure clarity in sound reproduction, which is crucial in various applications, from broadcasting to telephony.To understand how delayed automatic gain control works, it is essential to first grasp the basics of automatic gain control (AGC). AGC systems automatically adjust the gain of an audio signal based on its amplitude. This means that when the input signal is too weak, the system increases the gain, and when the signal is too strong, it reduces the gain. However, traditional AGC can sometimes react too quickly to fluctuations in signal strength, leading to undesirable effects such as pumping or breathing sounds.This is where delayed automatic gain control comes into play. By introducing a delay in the response time of the AGC system, it allows for a more gradual adjustment of gain levels. This delay helps to smooth out abrupt changes in the audio signal, resulting in a more natural and pleasant listening experience. For instance, in a live concert setting, the sound engineer may employ delayed automatic gain control to ensure that sudden loud noises, such as a drum hit or a singer's high note, do not overwhelm the audience or cause distortion in the sound system.The implementation of delayed automatic gain control can be particularly beneficial in environments with fluctuating noise levels. In a noisy restaurant, for example, background chatter can vary significantly, making it challenging to maintain a consistent audio experience for patrons. By using delayed automatic gain control, the audio system can adapt to these changes without compromising sound quality, ensuring that conversations remain intelligible even amidst the hustle and bustle.Moreover, delayed automatic gain control is not limited to audio applications; it also finds relevance in video processing and other forms of media. For video broadcasts, maintaining a consistent audio level is vital for viewer satisfaction. Sudden changes in volume can distract viewers and detract from their overall experience. Thus, employing delayed automatic gain control can enhance the quality of video productions, making them more enjoyable for audiences.In conclusion, delayed automatic gain control is a sophisticated technique that plays a crucial role in modern audio and video processing. By allowing for a delayed response in gain adjustments, it helps to create a more stable and pleasant audio environment. Whether in live performances, broadcasting, or everyday listening experiences, the importance of maintaining sound clarity and consistency cannot be overstated. As technology continues to evolve, the use of delayed automatic gain control will likely become even more prevalent, further enhancing the quality of audio and video media we consume today.

在音频处理和电信领域，有一个概念格外突出，那就是延迟自动增益控制。这个术语指的是一种管理音频信号幅度的技术，使得输出保持在一致的水平，尽管输入信号强度有所变化。延迟自动增益控制的主要目的是防止失真，并确保声音再现的清晰度，这在从广播到电话等各种应用中都是至关重要的。要理解延迟自动增益控制的工作原理，首先必须掌握自动增益控制（AGC）的基本知识。AGC系统会根据音频信号的幅度自动调整增益。这意味着，当输入信号过弱时，系统会增加增益；而当信号过强时，则会降低增益。然而，传统的AGC有时会对信号强度的波动反应过快，导致不良效果，如泵送或呼吸声。这就是延迟自动增益控制发挥作用的地方。通过在AGC系统的响应时间中引入延迟，它允许增益水平的逐渐调整。这种延迟有助于平滑音频信号中的突然变化，从而产生更自然和愉悦的听觉体验。例如，在现场音乐会环境中，音响工程师可能会使用延迟自动增益控制来确保突然的高音，例如鼓声或歌手的高音，不会压倒观众或导致音响系统失真。在噪声水平波动的环境中，实施延迟自动增益控制尤其有益。例如，在嘈杂的餐厅中，背景聊天可能会显著变化，使得维持一致的音频体验变得具有挑战性。通过使用延迟自动增益控制，音频系统可以适应这些变化，而不会影响音质，确保即使在喧闹的环境中，谈话仍然清晰可懂。此外，延迟自动增益控制不仅限于音频应用；它在视频处理和其他媒体形式中也具有相关性。对于视频广播，保持一致的音频水平对观众满意度至关重要。音量的突然变化可能会分散观众的注意力，降低他们的整体体验。因此，采用延迟自动增益控制可以增强视频制作的质量，使其更加愉悦。总之，延迟自动增益控制是一种复杂的技术，在现代音频和视频处理领域发挥着至关重要的作用。通过允许增益调整的延迟响应，它有助于创建更稳定和愉快的音频环境。无论是在现场表演、广播还是日常听觉体验中，保持声音清晰和一致的重要性都不容忽视。随着技术的不断发展，延迟自动增益控制的使用可能会变得更加普遍，进一步提升我们今天消费的音频和视频媒体的质量。