2024年8月16日 · Total Harmonic Distortion is a crucial metric in assessing the quality and performance of electronic devices, particularly in audio and power systems. A lower THD indicates a cleaner, more accurate signal, which is desirable in almost all applications.

The total harmonic distortion (THD or THDi) is a measurement of the harmonic distortion present in a signal and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency. Distortion factor, a …

基础电声测试是音频系统测试中最基础的一项测试，一般包括频率响应（FR）； 总谐波失真 （THD）； 信噪比 （SNR）以及 声压级 （SPL）。 当然也可以根据需要增减指标。 基础声电测试对声学系统的一些基础指标进行了量化测量，能反映一个音频系统最基础的好坏。 一个声学系统基础声电指标合格并表表示是一个好的声学系统，但是一个声学系统如果连基础声电指标都是很糟糕的，那一定不是一个优秀的声学系统。 在基础声电中，比较重要的一个指标就是总谐波失 …

2019年8月28日 · THD and THD+N are acronyms for Total Harmonic Distortion and Total Harmonic Distortion Plus Noise. Both are measures of harmonic distortion – the degree to which a device alters a pure sinusoidal signal by adding harmonics to the fundamental signal. They are closely related, but there’s an important difference between them that is often overlooked.

2023年9月1日 · TotalHarmonicDistortion (THD)是衡量信号失真的指标，用于评估经过非线性系统处理后产生的谐波成分。 THD以基频和谐波能量的比例表示，低THD表示高质量音频设备。 高保真系统追求极低的THD以减少失真。 “Total Harmonic Distortion”（总谐波失真），是一个用来衡量信号中谐波成分对 原始信号 的失真程度的指标。 在电子工程和音频领域中经常使用。 当一个信号经过 非线性系统 （例如放大器、扬声器等）处理时，原始信号中除了基频分量外，还可能产 …

2022年6月4日 · Total Harmonic Distortion (THD) compares input and output audio signals, expressed as a percentage. Lower values represent better sonic reproduction.

What is THD and how is it measured? THD stands for Total Harmonic Distortion and can be used to estimate the degree to which a system is nonlinear. A THD measurement can be made by applying a sine wave as an input to a system, and measuring the total energy which appears at the output of the system at harmonics of the input frequency.

thd和thd+n是总谐波失真和总谐波失真加噪声的缩写。 两者都是谐波失真的度量标准——设备通过向 基本信号添加谐波来改变纯正弦信号的程度。 它们有着密切的联系，但它们之间有一个重要的区别却常常被忽 视。

Total Harmonic Distortion is a crucial metric in audio equipment that is used to quantify the extent to which a device introduces unwanted harmonic frequencies to an audio signal. In other words, THD measures the harmonic content added to the original audio signal as …

2022年11月25日 · Total Harmonic Distortion, or THD, is a measure of the amount of distortion that occurs when an audio signal passes through a device. It’s measured in decibels and can be expressed as a percentage. The higher the number, the more distorted your sound will be.