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Practical Test & Measurement - Stop Worrying About ...
https://audioxpress.com/article/practical-test-measurement-stop-worrying-about-coupling-capacitors/#:~:text=One%20problem%20with%20capacitors%20is%20they%20can%20distort,of%20the%20audio%20passes%20and%20some%20is%20blocked.
Capacitor Distortion - Audio Amplifier Design
https://renardson-audio.com/capdist.html
Tests published by C.Bateman included Epcos polyester types, and found third harmonic at -90db at 1kHz at 4V capacitor voltage. The distortion is relative to the voltage across the capacitor, which in my amplifier will be more than 400 times lower at 1kHz, and third harmonic can be expected to be proportional to the square of the signal level, so capacitor distortion relative to …
Selecting capacitors to minimize distortion in audio ...
https://www.ti.com/lit/SLYT796
of distortion in the low-frequency spectrum where capaci-tor impedance is relatively high. Furthermore, as the signal amplitude increases, greater distortion occurs. At higher frequencies, the distortion is less noticeable due to lower capacitor impedance, leading to a negligible voltage drop across the capacitor. Minimizing distortion with MLCCs
Capacitor Distortion Part 2 - renardson-audio.com
http://www.renardson-audio.com/capdist2.html
Capacitor Distortion Part 2. The purpose of an input coupling capacitor is to block dc but ideally to have no effect on the ac input. To achieve this the voltage across the capacitor needs to remain constant. In practice there will be some signal related voltage across the capacitor, partly the expected low-pass filtered version of the input signal but also any distortion produced by …
Capacitor Distortion | diyAudio
https://www.diyaudio.com/community/threads/capacitor-distortion.5107/
capacitor distortion will depend on the load impedance and will be biggest around the corner frequency where capacitor and load have the same impedance. A low pass might have lower distortion than a high pass because the harmonics get attenuated.
Capacitor Sounds II - Distortion v Time v Bias. - …
https://www.linearaudio.nl/sites/linearaudio.net/files/Bateman%20EW%2008%202003%20distortion%20v%20time%20v%20bias.pdf
distortions imposed onto the test signal by many capacitor types found in high quality audio systems. This test system uniquely provided the facility to measure additional distortions found with most capacitors when subjected to a DC polarising voltage.
Capacitor Sounds 6 - Linear Audio
https://linearaudio.nl/sites/linearaudio.net/files/Bateman%20EW%2001%202003%20mar2003%2010%20to%20100uF%20caps%20and%20100%20Hz%20measurements_0.pdf
The largest capacitor I measured for distortion, the Nitai 220 mF 63 volt Bi-polar, has a case size 25·16 mm. Apart from in the power supply, this is the …
Practical Test & Measurement - Stop Worrying About ...
https://audioxpress.com/article/practical-test-measurement-stop-worrying-about-coupling-capacitors/
One problem with capacitors is they can distort the audio passing through them. But this happens only when the signal level changes through the capacitor. At very high frequencies, all of the audio gets through; and at very low frequencies, none of the audio gets through. Distortion occurs only when some of the audio passes and some is blocked.
Capacitor Type Selection Optimizes PC Sound …
https://pdfserv.maximintegrated.com/en/an/AN4333.pdf
audio distortion. Figure 1. Input coupling capacitors establish DC blocking between the HDA codec and the audio amplifier. This converse piezoelectric effect is by far the dominant cause of increased distortion at lower audio band frequencies (Figure 2). The effect is maximized when the input coupling capacitor's electrical value
Evaluating Electrolytic Capacitors Specified for …
https://www.aes.org/e-lib/download.cfm/20891.pdf?ID=20891
ENGINEERING REPORTS I. Z. Anderson, “Evaluating Electrolytic Capacitors Specified for Audio Use: A Comparative Analysis of Electrical Measurements and Capacitor Distortion Products in Line Level Interstage Coupling Applications”
How to Pick Audio Capacitors – Charrette & Beget
https://www.maxpierson.me/2009/03/17/how-to-pick-audio-capacitors/
A typical ESR for a capacitor might be .1Ohm, whereas a low ESR model might be .01ohm.Low ESR seems to be a much touted feature for audio capacitors, especially Black Gates. Since resistance is not dependent on frequency, however, I don’t understand how ESR would have any effect on distortion in the audio signal, and I doubt you’re going to hear a difference …
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