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- Aug 11, 2017
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Hello dear John.
First of all, on behalf of all the poor people related to audio, I would like to thank you for your dedication. rew software has helped many people, but recently I found out that there are level related errors in rew software, please pay attention to it.
I used multiple software to verify that rew level analysis and spectrum analysis have errors, I'm not into math so I don't understand. My guess: rew first treats the input signal as a sine wave, then does the power sum, then calculates the rms value, then +3dB to get the sine wave peak value. This calculation does not take into account the peak factor of the random signal (9 to 15dB), which is 3dB for a sine wave.
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The pictures below show the new design:
First of all, on behalf of all the poor people related to audio, I would like to thank you for your dedication. rew software has helped many people, but recently I found out that there are level related errors in rew software, please pay attention to it.
I used multiple software to verify that rew level analysis and spectrum analysis have errors, I'm not into math so I don't understand. My guess: rew first treats the input signal as a sine wave, then does the power sum, then calculates the rms value, then +3dB to get the sine wave peak value. This calculation does not take into account the peak factor of the random signal (9 to 15dB), which is 3dB for a sine wave.
****************************************
****************************************
*****************************************
The pictures below show the new design:
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