Hi,
I would like to point the attention of REW developers to this fresh AES paper published a few days ago: Synchronized Swept-Sine: Theory, Application, and Implementation
The paper claims that using their own swept sine function and analysis method leads to better HHFR (Higher Harmonic Frequency Response) measurements. Note that most of the paper deals with correctly measuring the phase of harmonics, which is probably not something REW users care about, but the paper also mentions a hidden gem in section 4, illustrated by figure 6:
The authors kindly provide a MATLAB implementation of their method, so it should be relatively easy to translate it into usable code.
I would like to point the attention of REW developers to this fresh AES paper published a few days ago: Synchronized Swept-Sine: Theory, Application, and Implementation
The paper claims that using their own swept sine function and analysis method leads to better HHFR (Higher Harmonic Frequency Response) measurements. Note that most of the paper deals with correctly measuring the phase of harmonics, which is probably not something REW users care about, but the paper also mentions a hidden gem in section 4, illustrated by figure 6:
What I believe this means in practice is: using this method, it is possible to, say, measure using a 20-200Hz signal, and still be able to measure harmonic distortion for harmonics higher than 200Hz (f2). Currently, when using REW to measure distortion, harmonics higher than the measurement limits are not shown. Using that new method should hopefully remove that limitation.
The authors kindly provide a MATLAB implementation of their method, so it should be relatively easy to translate it into usable code.