2.6kHzI

Rightmark makes audio testing hardware which is interesting, and there's a free version.
Izotope RX for post. Way not free.

My ears have been clogged and it's really irritating. I've got these drops, but I may just go have them irrigated. Bleh.

FFT images of my three Oktava 012 mics with hypercardioid capsules aimed at an air purifier.

Oversampling in digital equalizers.

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I am super irritated with  2.6 (or so) kHz. All my life the harshness of parallel walls or sopranos or something in this region has really bothered me. And other than notching it with a multiband compressor I just don't know what to do. Sometimes I think "Egads! Is that sound really happening in the space?" And... it is. Ugh.
I don't know why it takes me so many years to finally "get" what's bothering me. I have a specific memory of hearing a soprano sing at the little barn-theater at my high school and being bugged by it. I remember touring with the Wooster Group and being irritated by it once the volume got too loud. We could pull frequencies out, but it would get too muffled. Of course at the time all we had were sloppy Klark Teknik 31-band graphic eq's. So you could make the sound right when it was loud, but then when you got quiet again the sound was very muffled. It sorta sucked. A narrow-band de-esser might have worked but I don't know if there were any commercially available ones which went down that low (this was the early 90's.)
Anyway, I want some nice corrective eq's or something in the way of a phase-coherent hand-limited and frequency-variable compressor (without makeup gain.)
For classical music I'm really digging the preamps in the Zoom F8. I know, an unpopular opinion. But they're really great. There's just no inserts or EQ's available.
The new version of the F8 let's you record to your computer and to the SD cards simultaneously.
I would b interested in knowing what the preamps on (say) a Midas M32r sound like.