Questions tagged [thd]
6 questions
7
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1 answer
Optimal amplitude of an $m$-bit sinusoid
A continuous-time sinusoid of zero-to-peak real amplitude $A \le 2^{m-1}-0.5$ (e.g., for $m=16$, $A \le 32767.5$) is quantized to $m$-bit resolution by rounding it to the nearest integer (Fig. 1). What is the optimal amplitude for different $m \le…
Olli Niemitalo
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2 answers
Determining SINAD from measured data
I would like to determine the SINAD of a distorted signal from a measurement and have troubles to get consistent data. The problem is (at least to my understanding) that I only have a very limited number of signal periods and I'm not sure, whether I…
FaradayParadox
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Why is my fundamental frequency at the 15th harmonic order
I am trying to implement a code in MATLAB to show harmonic content and order in Matlab. my fundamental is supposed to be at harmonic order 1, however the ouput plot I am getting is wrong and I am having difficulies proceeding.
I am a first time user…
Jmv
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Measuring THD using consumer sound card
I am trying to measure (estimate) THD of an audio path using a consumer sound card. The idea is that I do two measurements, one without the system being measured in the path and one with it:
MEASUREMENT 1:
Sound card DAC ---> Sound card…
Klemen
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Total Harmonic Distortion THD for the rectifier
I have a circuit with rectifier and this cause the non-linearity and consequently harmonic. I show it on the oscilloscope and then collect the signal from the oscilloscope to the computer by using the Labview. The procedure is to find the Total…
SnowMan
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Are Total Harmonic Distortion and Noise (THD+N) and THD correlated in practice?
I've read about THD and THD+N due to interest in audio quality.
Some audio devices (ej. speakers) report %THD or %THD+N. %THD+N is greater than %THD. I've found that sometimes the difference is huge, which makes me think that a significant part of…
user1420303
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