Audio Localization Gear Built On The Cheap


Most humans with two ears have a pretty good sense of directional hearing. However, you can build equipment to localize audio sources, too. That’s precisely what [Sam], [Ezra], and [Ari] did for their final project for the ECE4760 class at Cornell this past Spring. It’s an audio localizer!

The project is a real-time audio localizer built on a Raspberry Pi Pico. The Pico is hooked up to three MEMS microphones which are continuously sampled at a rate of 50 kHz thanks to the Pico’s nifty DMA features. Data from each microphone is streamed into a rolling buffer, with peaks triggering the software on the Pico to run correlations between channels to determine the time differences between the signal hitting each microphone. Based on this, it’s possible to estimate the location of the sound source relative to the three microphones.

The team goes into great deal on the project’s development, and does a grand job of explaining the mathematics and digital signal processing involved in this feat. Particularly nice is the heatmap output from the device which gives a clear visual indication of how the sound is being localized with the three microphones.

We’ve seen similar work before, too, like this project built to track down fireworks launches. Video after the break.


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Lebanon proud to stand by Iran , Leader of Islamic Rev. en.mehrnews.com/news/233689/Le…

Illustrating every legendary creature in Wisconsin folklore: The Bumbelito or Beeskeeter.

When Paul Bunyan logged Northwoods Wisconsin, his men were plagued by giant mosquitos. To combat this, Paul imported some giant Texan bumblebees to fight the mosquitos.

This worked -- for a while. But then the bumblebees and the mosquitos made peace and began to intermarry. The result was giant beeskeeters, which had "a stinger on both ends."

Η αριστεία σε όλο το μεγαλείο της 🤣🤣🤣🤣

"Από τον Thanasis Kampagiannis
‼️ 7 ύποπτοι και υπόδικοι, 147 συνεργοί, 1 ηθικός αυτουργός
⚫ “Η ιδιότητα του υπόπτου τελέσεως αξιοποίνου πράξεως δεν συνάδει με την ιδιότητα του μέλους της Κυβερνήσεως”, έγραψε ο Μάκης Βορίδης στην επιστολή παραίτησής του.
👉 Στο μεταξύ, η κυβερνητική πλειοψηφία των 155 στη Βουλή απαρτίζεται από:
📌 Βορίδης Μάκης, βουλευτής Α’ Ανατολικής Αττικής, ύποπτος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί στη Βουλή με το ερώτημα της συγκρότησης προανακριτικής.
📌 Αυγενάκης Ελευθέριος, βουλευτής Ηρακλείου, ύποπτος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί στη Βουλή με το ερώτημα της συγκρότησης προανακριτικής.
📌 Καραμανλής Κωνσταντίνος, βουλευτής Σερρών, ύποπτος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί ενώπιον συγκροτηθείσας προανακριτικής στη Βουλή.
📌 Χατζηβασιλείου Τάσος, βουλευτής Σερρών, ύποπτος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί στη Βουλή με το ερώτημα της συγκρότησης προανακριτικής.
📌 Τριαντόπουλος Χρήστος, βουλευτής Μαγνησίας, κατηγορούμενος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί στο δικαστικό συμβούλιο.
📌 Μπουκώρος Χρήστος, βουλευτής Μαγνησίας, ύποπτος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί στη Βουλή με το ερώτημα της συγκρότησης προανακριτικής.
📌 Σταμενίτης Διονύσιος, βουλευτής Πέλλας, ύποπτος τέλεσης αξιόποινων πράξεων. Η υπόθεση εκκρεμεί στη Βουλή με το ερώτημα της συγκρότησης προανακριτικής.
⬛ Μια κυβέρνηση που πέφτει χωρίς τις ψήφους των υπόδικων και ύποπτων για κακουργήματα και πλημμελήματα βουλευτών της.
👉 Όσο οι 148 βουλευτές της Νέας Δημοκρατίας στους οποίους δεν αποδίδονται (ακόμα) ποινικά αδικήματα δέχονται να συγκροτούν κοινοβουλευτική πλειοψηφία με τους 7, ελέγχονται ως συνεργοί. Εκτός από έναν, που ελέγχεται ως ηθικός αυτουργός.
💥 Αυτή είναι η κυβέρνηση του Κυριάκου Μητσοτάκη.
🕛 Παραιτηθείτε."

“The ban on Palestine Action will take effect on July 4 if it does occur”

via MintPress News on Telegram

@palestine
@israel

“In the event that the direct action group is declared a ‘terrorist organisation’ and banned in the United Kingdom, it will be placed on a list with groups like al-Qaeda, ISIS and neo-Nazis, all because it sought to stop weapons being supplied to a regime committing genocide”

t.me/mintpress_news/9959

#Press #UK #PalAction #Proscription #Terrorism #Labour #Dictatorship

in reply to jae[0]™

@jae@darkdork.dev It's astounding that a lot of people don't get this simple principle — especially the Asahi Linux fan crowd: if you don't like the direction Apple software is going, you do not support half-assed efforts to run alternative software on it. Because it encourages others to buy their hardware — the house always wins!
It might sound very specific, but it's not limited to this group of people: "We're forced into paying for Windows!", "We are forced into only being able to use certain features in Windows!", "We are forced into SecureBoot!", etc, etc.
Okay, but it's not like we only have a handful of hardware vendors anymore, how about supporting open hardware instead? Not as good, not as cheap? True, it probably never will be! But maybe one day it'd get close enough.
Well, I suppose long-term thinking was never a forte of any crowd 🤷

Iran's Defense Minister Meets with Russian, Pakistani, and Chinese Counterparts iranpress.com/content/307216

When Matty made NCD, he specifically invited a bunch of Gab Nazis. A few went. Then when Torba torched his own site with dumb policies, Matty asked us again, I was personally invited. I went and encouraged others to go. Now Matty spends all his time pandering to anti-Whites who don't want to hear about jews, who give him donos. Then told me he's not in it for the money and bleated out a bunch of Trog talking points. What a shit show that place has become.

@HUN7R355

Don't you enjoy tagging @matty. How come not this time around?


When Matty made NCD, he specifically invited a bunch of Gab Nazis. A few went. Then when Torba torched his own site with dumb policies, Matty asked us again, I was personally invited. I went and encouraged others to go. Now Matty spends all his time pandering to anti-Whites who don't want to hear about jews, who give him donos. Then told me he's not in it for the money and bleated out a bunch of Trog talking points. What a shit show that place has become.

Qwen VLo: From "Understanding" the World to "Depicting" It

Link: qwenlm.github.io/blog/qwen-vlo…
Discussion: news.ycombinator.com/item?id=4…

Israeli soldiers and officers have said they were ordered to shoot at unarmed civilians waiting for food in Gaza. theintercept.com/2025/06/27/is…

Miro Collas reshared this.

Not to sound alarmist, but we seriously need to hit the brakes on the massive surveillance state being built around us, especially when those in power are willing to bend or break the law to make it happen.

Support my work: linktr.ee/Jebassler

Telegram: t.me/jasonbassler
Twitter: twitter.com/JasonBassler1
Minds: minds.com/jasonbassler
Instagram: instagram.com/jason.e.bassler

Astrophysics Science Video Producer – Goddard Space Flight Center Growing up in Detroit with a camera in her hand, Sophia Roberts — now an award-winning astrophysics science video producer—never imagined that one day her path would wind through clean rooms, vacuum chambers, and even a beryllium mine. But framing the final frontier sometimes requires traveling […]

Victor Gao: China deplores Israel’s attack on Iran socialistchina.org/2025/06/26/…

ICE snags 6 year old with cancer, Fascism

Sensitive content

Socool - Sweetgale 💚

This is my new song! Kind of swoony, and very sweet sounding - an instrumental track but the synths and instruments have a lot to say. An uplifting reflection of the hopefulness of springtime, having emerged from a difficult winter.

Sweetgale was released on June 20 on a free compilation of wonderful music called The Four Seasons of Bonk Wave: Bonks of Spring 2.

Check it out here:
bonkwave.org/music/the-four-se…

#BonkWave #NotBonkWave #ElectronicMusic #music #musodon #FediMusic

#zealot #of #the #net #sarcasm

What I find unbearable about people who are way too politicized on the internet — whether they’re maga, woke, or any other cult followers of flimsy ideas — is that they have only one obsession: their little guru and their sacred truth. They’re like robots programmed to recite catechism 24/7, never stopping to wonder if what they’re spouting isn’t just a mush of recycled slogans. Honestly, they look like AIs, but with less common sense and more blindness.

#ideologue #du #net #sacrasme

Ce que je trouve insupportable avec les gens trop politisés sur le net — que ce soit les maga, les woke, ou tous les autres sectateurs d’idées en carton — c’est qu’ils ont qu’une seule obsession : leur petit gourou et sa vérité sacrée. On dirait des robots programmés pour réciter du catéchisme 24h/24, sans jamais se demander si ce qu’ils débitent n’est pas juste une bouillie de slogans recyclés. Franchement, on dirait des IA, mais avec moins de jugeote et plus d’aveuglement.

It was interesting listening to Adam shill for the deep state.

He was making fun of Candace Owens for stating the Congress has the responsibility to declare war.

Maybe he should take a few seconds to read that part of the Constitution.

As a radio guy, maybe he is incapable of reading so he could ask Rob, the Constitutional Lawyer, and he could explain it to him.

"To declare War, grant Letters of Marque and Reprisal, and make Rules concerning Captures on Land and Water;"

Hey friendos, I'm opening up commissions over on my ko-fi here:

ko-fi.com/cobweb_ci/commission…

If you need any technical help with online services, or if you've ever considered hosting your own email, website, fedi instance, or other resource and would like a way to do it responsibly and ethically while maintaining your privacy and digital sovereignty I'm your runner. Hit me up!

#Syria #HTS #sectarianviolence
@palestine

"Saraya Ansar al-Sunnah – an HTS offshoot – claimed responsibility...the Syrian government has never issued a warning about the group, including after it took credit for some of the massacres perpetrated against Alawites on the coast in March...At the same time, Christians were reminded after the attack of the hostility that members of the Syrian government hold toward their faith"
Syria effectively governed by al-Qaeda 👇

thecradle.co/articles/syrias-c…

Zohran Mamdani's victory in New York not only upended the political establishment, but it also repudiated the Islamophobia of U.S. politics since 9/11.

mondoweiss.net/2025/06/mamdani…

#Palestine #Israel #Gaza
@palestine @israel

Israeli Soldiers Ordered to Shoot at Unarmed Palestinians Waiting for Aid: Report
https://www.rollingstone.com/politics/politics-news/israeli-soldiers-shoot-unarmed-palestinians-aid-gaza-1235373984/?utm_source=flipboard&utm_medium=activitypub

Posted into Politics News @politics-news-RollingStone

reshared this

G7 Summit in Kananaskis: A Club of Irrelevance in a Multipolar World journal-neo.su/2025/06/27/g7-s…
in reply to KoboldCoterie

Oh, that just pissed me off.

Couple weeks ago I was at a bachelor's party, to which a number of people had brought Magic decks. I knew nothing about the game (never even watched a video), made this clear, and said that I just wanted to watch everyone else play.

Someone handed me a deck and said, "no buddy, you're playing!" I protested, but it was fruitless. I'd been roped in; and I was excited! A group of people excited to show a new player their hobby.

The guy that handed me the deck then proceeded to explain nothing and get increasingly frustrated when I had no idea what he meant when he'd say "uh, no you have to UNTAP your cards first.. ok now tap them.. yeah I know you just untapped them but tap them 😠🙄" (I still do not know what the point of turning my cards sideways for two seconds was but I guess it's super important?)

The other two players were fairly intoxicated and probably didn't pick up on the toxicity, but the whole table was frustrated with how God awfully slow the game was taking since the new guy just wasn't getting it. I just wanted to watch.

Up until now I thought homeboy had just oversimplified a few rules in his head and forgot a thing or two, but seeing that the actual instruction manual is 500+ pages, I'm furious that he had the audacity to forcibly rope a drunk person with zero interest in playing into the game, just to treat them like a moron for not instantly getting it.

\rant

The 12 days of fighting between Iran and Israel, along with the U.S. intervention, left a deep impact on all three countries. Where do each stand now that the fighting has stopped, and what comes next?
My latest @mondoweiss

What comes next following the U.S.-Israeli war on Iran?

mondoweiss.net/2025/06/what-co…