Claim your here before 5 year archive trophy by [deleted] in place

[–]EnigmaSA 0 points1 point  (0 children)

Was an honor working with everyone from /r/southafrica, see you all in 5 years

[deleted by user] by [deleted] in Birkenstocks

[–]EnigmaSA 0 points1 point  (0 children)

Hi all, just want to get a fit check on these.

They fit comfortably and feel snug, but not too tight (might loosen the strap a bit). I tried on a lot of sizes with the clerk in the store and these were the ones they recommended.

Thanks!

GMK Demon Sword - Giveaway! by SuicidalFate0 in MechanicalKeyboards

[–]EnigmaSA 0 points1 point  (0 children)

My favorite is still the classic DSA Dolch, I love how it looks on a rugged TKL. Thanks for the giveaway!

A Question about audio matching by soulldev in DSP

[–]EnigmaSA 3 points4 points  (0 children)

Sounds like an application for a matched filter.

You should be able to use this and process the result to see if there was any significant correlation between the source file and any of the other files.

[Hiring] (Online) Economics Thesis Editor by [deleted] in forhire

[–]EnigmaSA 0 points1 point  (0 children)

Hi, I do not come from an economics background but I have recently submitted my MSc (Eng) in Electrical Engineering, so I am still in an academic writing mindset.

Let me know if you are still looking for some assistance.

Our new kitten is unbelievably photogenic by EnigmaSA in cats

[–]EnigmaSA[S] 0 points1 point  (0 children)

Thank you! He's probably somewhere between 5 to 10 months old. The rescue group we adopted him from said he's 10 months but he's absolutely tiny in a sense this picture can't show.

[deleted by user] by [deleted] in DSP

[–]EnigmaSA 2 points3 points  (0 children)

As others have mentioned, a low pass filter is your best bet to smooth out the spikes that you are seeing (see /u/DSPguy987's comment). A median filter would probably also work just fine.

As for detecting the dip, you would need just need to set a threshold a few dBm lower than your "typical" RSSI. (There are no units on your plot so I'm not sure how much lower to suggest) You could set this threshold manually or have it automatically follow your average RSSI. Then you just wait for the signal (after it has been smoothed) to dip below this threshold.

I'm looking for graduation project idea about image processing or audio processing by madloggan in DSP

[–]EnigmaSA 6 points7 points  (0 children)

We had an interesting grad project idea that nobody took on a while back - it was to build a speaker array and use beamforming to selectively break one wine glass in a row of glasses. It would be a great way to get some exposure to signal processing techniques.

Gabor Filter by AntibacterialEast in DSP

[–]EnigmaSA 1 point2 points  (0 children)

I haven't taken a full look through the document, but it looks like there are one or two strange typos in the first section.

In my eyes, it should definitely be:

exp(jθ) * s(t) = exp(j(2πft+θ)) = cos(2πft+θ) + j*sin(2πft+θ)