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Highpass filter for mbelib audio #8

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f4exb opened this issue Dec 26, 2017 · 1 comment
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Highpass filter for mbelib audio #8

f4exb opened this issue Dec 26, 2017 · 1 comment
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enhancement
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v1.7.3

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f4exb commented Dec 26, 2017

It appears that audio processed through mbelib leaves undesirable low frequency components. The voice understanding can be improved with a high pass telephone type (> 300Hz) filter.

In fact the IIR filter used in the interpolator cat be set to be either lowpass therefore without this additional filter or bandpass therefore with the additional filter. It is just a matter of coefficients that can be calculated with Python scipy.
@f4exb f4exb self-assigned this Dec 26, 2017
@f4exb f4exb mentioned this issue Dec 26, 2017
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@f4exb f4exb modified the milestones: v1.8.0, v1.7.3 Dec 26, 2017
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f4exb commented Dec 26, 2017

Implemented in v1.7.3

@f4exb f4exb closed this as completed Dec 26, 2017
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