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 …

Total harmonic distortion (THD) compares the input signal to the output signal of a speaker driver, highlighting any non-linear distortions or unwanted effects introduced by the speaker driver itself.

The Total Harmonic Distortion (THD) describes how much influence non-linear distortions (described later on) have got on an originally sinusoidal alternating signal in the speaker. With …

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 …

2022年6月4日 · Scan through the manual for an audio device and you're likely to find a specification called Total Harmonic Distortion (abbreviated as THD). This spec is found on …

2019年5月29日 · 总谐波失真加噪声(THD+N，Total Harmonic Distortion plus Noise)：谐波失真是在音频信号中多出了一些额外增加的频率信号，谐波频率是原始信号的整数倍。总谐波失真是 …

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 …

2019年11月14日 · THD 公式定義. 為了衡量諧波產生的比例，工程師定義了一個公式，它把基頻之外的倍頻rms值全部加起來，然後跟基頻rms相比較，於是會得到一個百分比，這就稱為總諧 …

Generally, excessive harmonic distortion can lead to a perceptible decline in audio quality. This happens when unwanted harmonic content is produced and added to the output signal. As …

2020年11月28日 · Judging by the distortions of the THD - the speaker is the worst device in the sound reproduction chain. Then which speaker has the best THD performance? Who knows …