Audio Effects with Cepstral Processing
November's blog post just went up. It's a short one about audio effects using the cepstrum:
Audio Effects with Cepstral Processing | Nathan Ho
Much like the previously discussed wavelet transforms, the cepstrum is a frequency-domain method that I see talked about a lot in the scientific research literature, but only occasionally applied to t
I spent a lot of this month on a more ambitious idea, also involving unusual frequency transforms, but kept hitting wall after wall with it. It just didn't sound good. The idea to move over to the cepstral domain occurred to me eventually, and finding an invertible way to work with MFCCs not long after.
The idea presented in the blog post is ultimately a pretty straightforward extension of the concept of MFCCs, by retaining phases and a "residual spectrum." I wouldn't be surprised if this concept has been found by someone else, but the aim here is not to present novel research that would pass peer review, but rather get some neat sounds. The post definitely has those, in my humble opinion.
My musical output has bounced back from the break I took after the album. Most of the tunes I'm working on are being retained for live DJ sets, and eventually formal release. Some others are... well, here's an Arca cover: