acoustical feedback

简明释义

声反馈

英英释义

例句

1.The sound engineer used a filter to reduce acoustical feedback during the live broadcast.

音响工程师在直播期间使用过滤器来减少声学反馈。

2.The technician adjusted the microphone to minimize acoustical feedback in the auditorium.

技术人员调整了麦克风，以最小化礼堂中的声学反馈。

3.To avoid acoustical feedback, it is essential to position speakers away from microphones.

为了避免声学反馈，将扬声器放置在远离麦克风的位置是至关重要的。

4.In classrooms, acoustical feedback can disrupt lessons if not managed properly.

在教室里，如果管理不当，声学反馈可能会干扰课程。

5.During the concert, the singer experienced an issue with acoustical feedback which caused a loud screeching sound.

在音乐会上，歌手遇到了声学反馈的问题，导致发出刺耳的尖叫声。

作文

In the realm of audio technology, one of the most fascinating phenomena is known as acoustical feedback. This occurs when a sound loop exists between an audio input and output, creating a feedback loop that can result in a loud, often unpleasant screeching sound. Understanding this concept is essential for anyone working with sound systems, whether in a concert setting, a recording studio, or even in everyday situations like public speaking. Acoustical feedback is not merely a technical issue; it also has significant implications for sound quality and clarity.To delve deeper into acoustical feedback, we must first understand how sound travels. Sound waves are vibrations that travel through the air (or other mediums) and can be captured by microphones. When a microphone picks up sound from speakers, it sends that sound to an amplifier, which then boosts the signal and sends it back to the speakers. If the microphone is positioned too close to the speakers, it can pick up the amplified sound, creating a loop. This loop can escalate quickly, resulting in a high-pitched tone that is characteristic of acoustical feedback.The phenomenon of acoustical feedback can be both a blessing and a curse. In some cases, musicians and audio engineers intentionally use feedback to create unique sounds and effects. For example, electric guitarists often exploit feedback to add sustain and character to their playing. However, unintentional acoustical feedback can disrupt performances, making it difficult for audiences to hear the intended sound clearly.Preventing acoustical feedback involves a combination of techniques. One common method is to ensure that microphones are placed at a reasonable distance from speakers. Additionally, using directional microphones can help minimize the amount of sound picked up from the speakers. Equalization can also play a crucial role; by adjusting the frequencies being amplified, audio engineers can reduce the likelihood of feedback occurring.Moreover, understanding the acoustics of a space is vital in managing acoustical feedback. Different environments, such as small rooms versus large auditoriums, respond differently to sound. In a small room, the proximity of sound sources can lead to feedback more readily than in larger spaces where sound dissipates more effectively. Thus, sound engineers must consider the layout and materials of a venue when setting up sound equipment.In conclusion, acoustical feedback is a complex issue that requires careful consideration and management in any audio setup. While it can be used creatively, it is often seen as a challenge to overcome. By understanding the principles behind acoustical feedback, audio professionals can enhance the listening experience for their audiences and create soundscapes that are both enjoyable and effective. Mastery of this phenomenon not only improves sound quality but also elevates the overall performance, ensuring that the message is conveyed clearly and powerfully to all listeners.

在音频技术领域，一个最迷人的现象被称为声反馈。当音频输入和输出之间存在声音循环时，就会发生这种情况，产生一个反馈循环，可能导致响亮且通常令人不快的尖叫声。理解这一概念对任何从事声音系统工作的人来说都是至关重要的，无论是在音乐会、录音室，还是在日常场合，如公共演讲中。声反馈不仅仅是一个技术问题；它对声音质量和清晰度也有重要影响。要深入了解声反馈，我们首先必须理解声音是如何传播的。声波是通过空气（或其他介质）传播的振动，可以被麦克风捕捉。当麦克风接收到来自扬声器的声音时，它将该声音发送到放大器，放大器增强信号并将其返回给扬声器。如果麦克风与扬声器的位置过近，它可能会拾取放大的声音，从而创建一个循环。这个循环可以迅速升级，导致特征性的高音调，这是声反馈的典型表现。声反馈的现象有时既是祝福也是诅咒。在某些情况下，音乐家和音频工程师故意使用反馈来创造独特的声音和效果。例如，电吉他手经常利用反馈为他们的演奏增加延续性和个性。然而，无意中的声反馈可能会干扰表演，使观众难以清晰地听到预期的声音。防止声反馈涉及多种技术的结合。一种常见的方法是确保麦克风与扬声器保持合理的距离。此外，使用定向麦克风可以帮助最小化拾取来自扬声器的声音的数量。均衡处理也起着至关重要的作用；通过调整被放大的频率，音频工程师可以降低发生反馈的可能性。此外，了解空间的声学特性在管理声反馈中至关重要。不同的环境，例如小房间与大型礼堂，对声音的反应是不同的。在小房间中，声音源的接近可能更容易导致反馈，而在较大的空间中，声音会更有效地扩散。因此，声音工程师在设置音响设备时必须考虑场地的布局和材料。总之，声反馈是一个复杂的问题，需要在任何音频设置中仔细考虑和管理。尽管它可以被创造性地使用，但通常被视为需要克服的挑战。通过理解声反馈背后的原理，音频专业人士可以增强听众的听觉体验，创造出既愉悦又有效的声音场景。掌握这一现象不仅提高了声音质量，还提升了整体表演，确保信息能够清晰有力地传达给所有听众。