need to reduce hissing

[Trebor]

…I got it but now just have to see how it works …

Paul-L’s De-esser ?, IMO set its threshold close to the RMS value …

Is this Acx sample up to technical standard please?

[suggested de-esser settings.png] The threshold for Paul-L’s de-esser should be close to the RMS of the audio, (+/-2 dB). (IMO leave the other De-Esser settings as shown). Paul-L’s de-esser is a multi-band brickwall limiter, rather than multi-band compressor, so it can sound unnatural when removes a big chunk of loud sibilance: it shaves it off flat. A workaround is to create an in-sync duplicate track of the original, and mix that in with the de-essed version, at about-20dB below the de-…