Also, try experimenting with resamplers. Moresampler is a common choice which I have been using which gives a decently clear output. Though I have no idea if custom oto files for it exists, Moresampler just creates its own files out of the base .frq files you get with teta so that's what I've been doing. Sounds nice.
Here's a sample which, depending on where you go this halloween or the few days afterwards, you will hear.
(hopefully this embeds)
This uses the moresampler without any special oto-ing with a change or two to the original TTEIH plugin input. And some moresampler flags.