THD+N calculation

2020 11 8
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更新时间：2020 11 11
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I'd like to know how to calculate THD+N from a wav or csv file and I could not find one so far. Please help.

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回答（1 个）

Aghamarsh Varanasi
Aghamarsh Varanasi 2020-11-11

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Hi Willaim Jia,
The calculation of Total Harmonic Distortion and noise (THD + N) of a signal is explained in this example. This requires the “Audio Toolbox” to be installed in MATLAB.
You can quickly open this example from MATLAB using the following command.
>> openExample('audio/THDNMeasurementWithTonetrackingExample')
For giving input from a wav file, you can use a ‘From Multimedia’ block.

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