Stereo Tool Absolute Highs DSP Filter

[RobRich]

Do not expect a miracle, but the Absolute Highs filter in Stereo Tool can sometimes help reproduce another KHz or few when listening to narrow content.

https://www.stereotool.com/

For a quick setup, configure the maximum generation setting at or slightly below the top edge of your current filtering and/or received bandwdith. Bump up the gating if needed to process more of the desired content instead of background noise.

Content is the huge YMMV factor. For example, forget it with lots of noise IMO, as it likely is going to enhance the noise as much as the desired content.

Pictured below is an 80m band voice comms example. Filter width is just 2.7KHz to limit adjacent interference, but it sounds considerably wider with the Absolute Highs filter enabled.

[redhat]

Does the 'delossifier' have a similar effect?  I think it is intended to fill in spectral holes left by MPEG compression.  Hans' declipper and dehummer process works amazingly well too.

+-RH

[RobRich]

As far as I understand, Delossifier mathematically fills spectral holes in existing spectrum while Absolute Highs mathematically generates additional spectrum.

I do not have a Delossifier license.... yet? Have not made up my mind on the cost.

I occasionally use Perfect Declipper as well since lots of transmissions, including some of the mainstream broadcasters, are heavily clipped.

[RobRich]

Processing reception of Seven Trees Radio tonight.