out-band distortion

简明释义

带外失真

英英释义

例句

1.The audio engineer noticed significant out-band distortion during the recording process, which affected the overall sound quality.

音频工程师在录音过程中注意到显著的带外失真，这影响了整体音质。

2.To avoid out-band distortion, we need to adjust the filter settings on the synthesizer.

为了避免带外失真，我们需要调整合成器上的滤波器设置。

3.In telecommunications, out-band distortion can lead to data loss and reduced signal integrity.

在电信中，带外失真可能导致数据丢失和信号完整性降低。

4.The technician tested the equipment for out-band distortion before finalizing the installation.

技术员在最终安装之前测试设备是否存在带外失真。

5.The speaker's design minimizes out-band distortion to ensure clearer sound reproduction.

扬声器的设计最小化了带外失真，以确保更清晰的声音重现。

作文

In the field of audio engineering and signal processing, the term out-band distortion refers to unwanted alterations or distortions that occur in the frequency ranges outside the intended bandwidth of a signal. This phenomenon can significantly affect the quality of audio reproduction and is a critical consideration for engineers and musicians alike. Understanding out-band distortion is essential for anyone involved in audio production, as it can lead to a range of issues from decreased clarity to increased noise levels.When we discuss audio signals, we often think about the frequencies that are meant to be heard, such as vocals, instruments, and other sounds within a specific range. However, out-band distortion occurs when frequencies that fall outside this range interfere with the desired audio signal. For instance, if a speaker is not designed to handle certain low frequencies, it may produce a distorted sound when those frequencies are present. This distortion can create an unpleasant listening experience, leading to listener fatigue and dissatisfaction.One common source of out-band distortion is the use of low-quality audio equipment. Cheaper speakers and amplifiers may not have the capability to accurately reproduce high or low frequencies, resulting in unwanted noise and distortion. Additionally, when audio signals are processed through various effects or filters, they can inadvertently introduce out-band distortion if not carefully managed. Engineers must pay close attention to these factors during the mixing and mastering processes to ensure that the final product is free from such distortions.Moreover, out-band distortion can also arise from environmental factors. For instance, in a live concert setting, the acoustics of the venue play a significant role in how sound is perceived. If a space has poor acoustics, it can cause certain frequencies to resonate or cancel each other out, leading to distortion that is not present in the studio recording. This is why sound engineers often conduct thorough sound checks and utilize equalization techniques to minimize out-band distortion and enhance the overall sound quality.Another aspect to consider is the digital realm, where audio files are compressed and manipulated. Compression algorithms can sometimes lead to the introduction of out-band distortion, particularly if the compression settings are too aggressive. This is especially true for lossy formats like MP3, where certain frequencies are discarded to reduce file size. While this can make files more convenient for storage and sharing, it can also compromise audio quality, making it crucial for producers to strike a balance between file size and sound fidelity.In conclusion, understanding out-band distortion is vital for anyone working in the audio industry. By recognizing its causes and potential impacts, audio professionals can take steps to mitigate its effects, ensuring that the final output is clear and enjoyable. Whether through careful equipment selection, environmental considerations, or digital processing techniques, addressing out-band distortion can greatly enhance the listening experience. Ultimately, the goal is to deliver sound that is true to the artist's vision, free from unwanted artifacts, and resonant with listeners, allowing them to fully immerse themselves in the music.

在音频工程和信号处理领域，术语out-band distortion指的是在信号的预期带宽之外发生的 unwanted alterations 或 distortions。这种现象会显著影响音频再现的质量，是工程师和音乐家必须考虑的关键因素。理解out-band distortion对于任何参与音频制作的人来说都是至关重要的，因为它可能导致从清晰度降低到噪音水平增加的一系列问题。当我们讨论音频信号时，我们通常会想到要听到的频率，例如人声、乐器和其他在特定范围内的声音。然而，当落在这个范围之外的频率干扰到所需音频信号时，就会发生out-band distortion。例如，如果一个扬声器没有设计来处理某些低频，它可能在这些频率存在时产生失真的声音。这种失真会造成不愉快的听觉体验，导致听众疲劳和不满。out-band distortion的一个常见来源是使用低质量的音频设备。较便宜的扬声器和放大器可能没有能力准确再现高或低频，从而导致 unwanted noise 和 distortion。此外，当音频信号通过各种效果或滤波器处理时，如果没有仔细管理，也可能无意中引入out-band distortion。工程师必须在混合和母带处理过程中密切关注这些因素，以确保最终产品没有这种失真。此外，out-band distortion也可能源于环境因素。例如，在现场音乐会中，场地的声学对声音的感知起着重要作用。如果空间的声学效果差，某些频率可能会共振或相互抵消，导致失真，而这种失真在录音室录制中并不存在。这就是为什么音响工程师通常会进行彻底的音效检查，并利用均衡技术来最小化out-band distortion并增强整体音质。另一个需要考虑的方面是数字领域，在这里，音频文件被压缩和处理。压缩算法有时会导致引入out-band distortion，特别是当压缩设置过于激进时。这在像MP3这样的有损格式中特别明显，因为为了减小文件大小，某些频率被丢弃。虽然这可以使文件在存储和共享上更方便，但也可能会妨碍音频质量，因此制作人必须在文件大小和声音保真度之间找到平衡。总之，理解out-band distortion对任何在音频行业工作的人来说都是至关重要的。通过认识其原因和潜在影响，音频专业人士可以采取措施来减轻其影响，确保最终输出清晰且令人愉悦。无论是通过仔细选择设备、环境考虑还是数字处理技术，解决out-band distortion都可以大大提升听觉体验。最终目标是提供真实反映艺术家愿景的声音，远离不必要的伪影，并与听众产生共鸣，使他们能够完全沉浸在音乐中。