thatsadude

9 ms·

61.
by thatsadude 5y ago
Not a single microphone but there is acoustic vector sensor which can also give you the sound's direction. Very expensive though, several Israel companies use them for detecting gunshot's direction. https://www.ese.wus
62.
by thatsadude 5y ago
In fact, you can use some lens such as parabolic reflector but it will make the problem very complicated to solve.
63.
by thatsadude 5y ago
There are two main ways to do it: algorithms based on time difference of arrival and algorithms based on estimation of sound energy on a predefined grid. You can also estimate the distance but it will not as accurate as the direction.
64.
by thatsadude 5y ago
You can estimate 2D direction with 2 microphones (most of phones and laptops have at least 2 mic).
65.
by thatsadude 6y ago
Does it support matrix multiplication, matrix inversion, SVD, etc.? These are very important operations for array processing. I cant seem to find them in SOUL's documents.
66.
by thatsadude 6y ago
Signal processing, 15 years using Matlab/Octave and 10 years using Python. It's easier to prototyping signal processing algorithms in Matlab/Octave. Some important functions in Scipy perform much worse than Matlab/Octave
67.
by thatsadude 6y ago
I concur. IMO her works are more of opinion pieces than science.
68.
by thatsadude 9y ago
Maybe that German paper is just an outlet of German secret service.
69.
by thatsadude 9y ago
I love both Dota and ML, this is awesome. I would love to know whether they release the source code for us to play around.
70.
by thatsadude 10y ago
Donoho proposed basics pursuit 10 years before it was proved in his joint work with Terence Tao.
71.
by thatsadude 10y ago
I made the same switch 6 years ago. Occasionally, I miss the way Notepad++ showing binary file, Sublime will just show the hex code. I tried to pick up Atom/Visual Code last year but gave up. Sublime is fine for me.
72.
by thatsadude 10y ago
Isn't backprop a clever application of chain rule in multivariate calculus?
73.
by thatsadude 10y ago
Check out Nesterov's Accelerate gradient. Its convergence rate is O(1/t^2).
74.
by thatsadude 10y ago
This and "C traps and pitfalls" [1] were my favorites back to the days. [1] http://www.literateprogramming.com/ctraps.pdf
75.
by thatsadude 11y ago
The game is amazingly close though.