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 >>sparkle... > >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. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user