[Yujia S]

Hi Catherine,
Regarding this ‘vertical bias’ you mentioned in the previous thread, I just wonder how comes the impulse train’s amplitude does not drop below zero? I mean other waves we’ve saw usually go up and down, and by the time all energy has been consumed the amplitude stays at zero. Is it because impulse train contains energys at all frequency and they cancel each other’s energy, resulting in the positive-only amplitude?

Many thanks.

Best
Yujia

[Yujia S]

Hi Catherine,
Regarding the convolution theorem,
h(k) * x(n) = H(m) × X(m)

I wonder which of H(m) and X(m) represents the spectral envelop, and which represents the harmonics?

Many thanks!

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