alkylketone

Re:New superconductor microprocessor yields a substantial boost in eff... on Wednesday January 13, 2021 @12:38PM (#25765365)

I'd be curious what the energy savings are like at smaller scales -- 80x at data center scales, but how about for a smaller machine, like a PC with phase cooling?

Re:Ask HN: What's a good way to estimate notes from music files on Tuesday October 13, 2020 @12:58PM (#24767417)

There's a couple source separation algorithms that do a pretty good job splitting the audio into single instrument tracks (I tried open_unmix) -- I'm struggling to transform the single instrument audio into frequencies or notes from that one instrument track.

Ask HN: What's a good way to estimate notes from music files

Posted by alkylketone on Monday October 12, 2020 @02:54AM
from the ask-hn dept.

I'm trying to estimate what note is being played in an instrumental track. I'd tried to approach this problem with by splitting the track into its different instruments with open_unmix [0], and then using librosa pitch tracking [1], and then cleaned the results, but unfortunately, the midi came out totally unrecognizable. I thought about approaching this problem again when I saw the recent...

( Read More... | 2 comments | 3 points | on HN )

Re:Mathe Carlo on Monday January 06, 2020 @12:20PM (#21970924)

Does any one know something similar as a primer on Markov Chains? I get the idea of simulating the pattern of behaviors or states with the Markov chain, and how the Monte Carlo is useful for that, but how to actually make a Markov chain and then test it mathematically with the Monte Carlo is something that I don't know how to do.

Re:Ask HN: Books you plan to read in 2020? on Monday December 16, 2019 @02:46PM (#21806430)

I'm curious what you think of The Narrow Corridor, also by Acemoglu and Robinson. I finished Nations recently, not sure I should jump right to Corridor next?

Re:Modernist Covers of 1930s Fortune Magazine (2016) on Sunday December 15, 2019 @10:08PM (#21800537)

The massive belief in the curative power of science for all ills is what I find so alluring in the early 20th century posters. They're engaging to me because there's an inherent optimism in many of them!