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What is audio distortion and THD, and why does it matter ...
https://soundguys.com/what-is-distortion-thd-47149/#:~:text=Harmonic%20distortion%20is%20the%20addition%20of%20new%20tones,etc.%2C%20at%20integral%20multiples%20of%20the%20original%20tone.
What is harmonic distortion? - Adventures In Audio
https://www.audiomasterclass.com/blog/what-is-harmonic-distortion
Harmonic distortion changes the shape of the audio waveform and creates additional frequencies that were not originally present. Often it sounds bad if there's too much of it. But electric guitarists love it! For this demonstration we'll start off with a sine wave of 100 Hz at …
Total Harmonic Distortion | Universal Audio
https://www.uaudio.com/blog/total-harmonic-distortion/
The input signal is a pure sinusoid, while the output signal has several low-order distortion components totaling about 31% THD. On the right-hand side, spectra for the input and output signals are plotted. This system has no additive noise or modulation mechanism, so all energy at the output is contained at harmonics of the input frequency.
Harmonic Distortion | DIY-Audio-Heaven
https://diyaudioheaven.wordpress.com/tutorials/how-to-interpret-graphs/harmonic-distortion/
This plot shows the harmonic distortion at all frequencies. The FFT above only at 1kHz. The reason the harmonics traces are stopping before 30kHz is due to the fundamental stopping at 30kHz. This means that when the fundamental is at 15kHz the 2nd harmonic is 30kHz (the max it will measure).
What is audio distortion and THD, and why does it matter ...
https://soundguys.com/what-is-distortion-thd-47149/
Harmonic distortion is the addition of new tones to the audio signal. These distortion products occur at integer multiples of the original signal’s frequency and are harmonically related to the original tone. When the signal is a single sine wave (tone) of frequency f1, harmonic tones are f2, f3, etc., at integral multiples of the original tone.
Total Harmonic Distortion (THD): Is It a Good Indicator of ...
https://www.audioholics.com/loudspeaker-design/audibility-of-distortion-at-bass/total-harmonic-distortion-thd
Harmonic distortion is often stated as a measurement called Total Harmonic Distortion, or THD, which is a percentage of the overall signal composed of harmonic distortion. THD is not a good indicator of how audible harmonic distortion will be unless it is of an extremely high or extremely low value. This is because there could be relatively high amounts of harmonic distortion in …
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