[LAU] noise reduction

Ralf Mardorf ralf.mardorf at alice-dsl.net
Sat Jan 23 12:46:20 UTC 2016

On Sat, 23 Jan 2016 13:40:27 +0100, Ralf Mardorf wrote:
>On Sat, 23 Jan 2016 13:06:08 +0100, Atte wrote:
>>The problem at hand is hiss, so the kind of thing you could remove
>>with a LPF, but in the process damage the recording by removing the
>Instead of a LPF try a parametric EQ (notch) with a very small range
>(high Q).
>First do not cut, instead boost. With the boosted small frequency range
>search the frequency, which affects most of the unwanted hiss, but less
>of the wanted audio signal. After that don't boost anymore, cut this
>very small frequency range and start optimising Q, perhaps you need to
>readjust the frequency too.

PS: To search the frequency boost very much, after that don't cut
completely, try to find an appropriated damping.

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