keyed automatic gain control

简明释义

键控式自动增益控制

英英释义

例句

1.During the podcast, the host relied on keyed automatic gain control to maintain consistent audio levels.

在播客中，主持人依靠键控自动增益控制来保持一致的音频水平。

2.In live sound systems, keyed automatic gain control helps prevent feedback by adjusting the volume dynamically.

在现场音响系统中，键控自动增益控制通过动态调整音量来防止反馈。

3.The audio engineer used keyed automatic gain control to ensure that the vocals remained clear during the recording.

音频工程师使用了键控自动增益控制来确保录音中的人声保持清晰。

4.The new mixer features keyed automatic gain control, which simplifies the mixing process for beginners.

这款新混音器具有键控自动增益控制功能，使初学者的混音过程变得简单。

5.Using keyed automatic gain control in video production can greatly enhance the overall sound quality.

在视频制作中使用键控自动增益控制可以大大提高整体音质。

作文

In the world of audio engineering, various techniques are employed to ensure that sound levels remain consistent and clear. One such technique is known as keyed automatic gain control, which plays a crucial role in managing audio signals. Understanding this concept can significantly enhance our appreciation of sound quality in both live performances and recorded media.keyed automatic gain control refers to a method used to automatically adjust the gain of an audio signal based on a specific reference signal or 'key'. This process is essential in situations where audio levels fluctuate dramatically, such as in live concerts or broadcasting environments. By utilizing a keyed system, audio engineers can maintain a steady output level, preventing distortion and ensuring that all elements of the audio mix are heard clearly.The operation of keyed automatic gain control involves monitoring the amplitude of the key signal, which is typically a vocal track or another prominent sound source. When the key signal exceeds a predetermined threshold, the gain control circuit reduces the overall gain of the audio signal. Conversely, when the key signal falls below this threshold, the gain is increased. This dynamic adjustment allows for a more balanced sound, particularly in scenarios where multiple audio sources may compete for attention.One of the primary benefits of using keyed automatic gain control is its ability to enhance clarity in complex audio environments. For instance, during a live performance, a vocalist may be accompanied by a full band. Without proper gain control, the instruments could overpower the singer's voice, making it difficult for the audience to hear the lyrics. By implementing keyed gain control, the audio engineer can ensure that the vocalist remains at the forefront of the mix, providing a more enjoyable experience for the listeners.Moreover, keyed automatic gain control is not limited to live sound applications. It is also widely used in recording studios and broadcast settings. In these environments, maintaining a consistent audio level is vital for producing high-quality recordings and broadcasts. The use of keyed gain control helps prevent sudden spikes in volume that can lead to clipping and distortion, preserving the integrity of the audio.Another advantage of keyed automatic gain control is its adaptability. Audio engineers can customize the threshold and response times to suit different types of audio content. For example, a fast-paced rock concert may require a different setup compared to a soft acoustic performance. This flexibility allows for optimal sound management across various genres and settings, ensuring that the final output meets the desired standards.In conclusion, keyed automatic gain control is an invaluable tool in the realm of audio engineering. Its ability to dynamically adjust gain based on a key signal ensures that sound levels remain consistent, enhancing clarity and overall listening experience. Whether in live performances, recording studios, or broadcasting, this technique plays a pivotal role in delivering high-quality audio. As technology continues to advance, understanding and mastering concepts like keyed automatic gain control will remain essential for audio professionals and enthusiasts alike.

在音频工程的世界中，各种技术被用来确保声音水平保持一致和清晰。其中一种技术被称为键控自动增益控制，在管理音频信号方面发挥着关键作用。理解这个概念可以显著增强我们对现场表演和录制媒体声音质量的欣赏。键控自动增益控制是指一种基于特定参考信号或“键”的自动调整音频信号增益的方法。在音频水平剧烈波动的情况下，比如在现场音乐会或广播环境中，这一过程至关重要。通过使用键控系统，音频工程师可以维持稳定的输出水平，防止失真，并确保音频混合中的所有元素都能清晰可闻。键控自动增益控制的操作涉及监测键信号的幅度，该信号通常是一个人声轨道或其他显著的声音源。当键信号超过预定的阈值时，增益控制电路会降低音频信号的整体增益。相反，当键信号低于该阈值时，增益会增加。这种动态调整允许在多个音频源可能竞争注意力的场景中获得更平衡的声音。使用键控自动增益控制的主要好处之一是它能够在复杂的音频环境中增强清晰度。例如，在现场表演期间，歌手可能会被全乐队伴奏。如果没有适当的增益控制，乐器可能会压倒歌手的声音，使观众难以听到歌词。通过实施键控增益控制，音频工程师可以确保歌手在混音的前沿，从而为听众提供更愉悦的体验。此外，键控自动增益控制不仅限于现场声音应用。它在录音室和广播环境中也被广泛使用。在这些环境中，保持一致的音频水平对于制作高质量的录音和广播至关重要。使用键控增益控制有助于防止音量的突然峰值，这可能导致削波和失真，从而保持音频的完整性。另一个键控自动增益控制的优势是其适应性。音频工程师可以根据不同类型的音频内容自定义阈值和响应时间。例如，快速节奏的摇滚音乐会可能需要与柔和的声乐表演不同的设置。这种灵活性允许在各种流派和环境中实现最佳音响管理，确保最终输出达到所需标准。总之，键控自动增益控制是音频工程领域中一种宝贵的工具。它基于键信号动态调整增益的能力确保声音水平保持一致，增强清晰度和整体听觉体验。无论是在现场表演、录音室还是广播中，这项技术在提供高质量音频方面都发挥着关键作用。随着技术的不断进步，理解和掌握像键控自动增益控制这样的概念将继续是音频专业人士和爱好者的重要任务。