what information an impulse response graph provides about headphones?Submitted by MEGA_AEOIU792 t3_10kgr8r in headphones
SoNic67 t1_j5tfqxd wrote
Reply to comment by audioen in what information an impulse response graph provides about headphones? by MEGA_AEOIU792
Limit the mathematical model only to a couple of terms of the series, and see how "lossless" your transformation is.
TaliskerBay22 t1_j5tvung wrote
I do not understand, your comment can you explain? Only thing I am saying is that the impulse response of the headphone in this graph is known to infinity as the assumption that it will continue to be 0 after the end of the plotted data is certainly a valid one. So we can pad with 0s this graph as much as we want. On the other hand the time 0 in this impulse wrong seems to be arbitrary. If somebody can pass me the data of the graph I can certainly do an FFT and get the Freq response.
SoNic67 t1_j5uqz7w wrote
I am talking about people that say the FFT is equal to impulse response because... math.
FFT implies infinite bandwidth.
TaliskerBay22 t1_j5vuc8d wrote
The maximum frequency of a fast Fourier transform is 1 over the sampling interval or the sampling frequency. As shown in this example https://uk.mathworks.com/help/matlab/ref/fft.html
SoNic67 t1_j5vxaxg wrote
Nope.
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