hcfman/sbts-aru on Hacker News

…year that make's this easier and you could deploy it on a Raspberry Pi zero and use a wifi link. https://github.com/hcfman/sbts-aru It's using a cheap (0.40c) sound card, but personally I choose to have high quality mics (primo em272 mic…

comment by hcfman · 2024-07-08 · in Detect Migrating Birds with a Plastic Dish and a Cheap Microphone

…connection then you could try my sbts-aru project and just not use the audio recorder parts of it. https://github.com/hcfman/sbts-aru It installs with a single command on all Raspberry Pi versions and takes care of all the dependencies,…

comment by hcfman · 2024-06-27 · in More Memory Safety for Let's Encrypt: Deploying ntpd-rs

…to invest much, I have a raspberry pi recorder project that can help. It even runs on a pi zero. https://github.com/hcfman/sbts-aru As an added bonus, if what you are recording can be heard on three recorders or more you can sound localize…

comment by hcfman · 2024-06-15 · in Map of forest sounds from around the world

My project, sbts-aru, https://github.com/hcfman/sbts-aru uses a GPS to synchronise the time with and then even when running completely disconnected from any network the clocks will be accurate to real time with less than 1 microsecond of…

comment by hcfman · 2024-05-29 · in Long distance sound localization with the Raspberry Pi

…from the time inaccuracies you could run the docker version of my localization program ( https://github.com/hcfman/sbts-aru ) on this input and it would output the map link to the offending farm. With a largish degree of error. Note. From…

comment by hcfman · 2024-05-27 · in Long distance sound localization with the Raspberry Pi

…is stealing from small developers and giving to rich ones) but personal civilian use is just fine. https://github.com/hcfman/sbts-aru (PS. I agree on with the sentiments of the above authors about war. It’s sad that our governments instead…

comment by hcfman · 2024-05-26 · in How Home Assistant is being used to protect from missile and drone attacks

…to further my experiments with gunshot localization, on my Pi-based sound localization platform ( https://github.com/hcfman/sbts-aru ). Though at the distances I'm localizing the phone based GNSS seems to be working quite well. With an RTk…

comment by hcfman · 2024-05-10 · in RTK Experiments

…suited for production environments. Id recommend an RTC module. Otherwise this might be helpful: https://github.com/hcfman/sbts-aru

comment by malivvan · 2024-04-11 · in Going in circles without a real-time clock

…ensuring good clock sync. Using a GPS synched time source is good for this, such as this one :) https://github.com/hcfman/sbts-aru

comment by hcfman · 2024-04-11 · in Going in circles without a real-time clock

Install sbts-aru as a base system and it will keep your Pi accuracy to sub-microsecond error. https://github.com/hcfman/sbts-aru Problem solved.

comment by hcfman · 2024-04-11 · in Going in circles without a real-time clock

If you install my sbts-aru project https://github.com/hcfman/sbts-aru It will shrink your partitions, add new ones and install one of these and set up a sub micro second system clock and an audio recorder suitable for sound localization…

comment by hcfman · 2024-03-30 · in Running a Raspberry Pi with a read-only root filesystem

Yep. This project https://github.com/hcfman/sbts-aru

comment by hcfman · 2024-03-03 · in ShotSpotter: listening in on the neighborhood

I recommend primo EM272 microphone capsules for use with https://github.com/hcfman/sbts-aru . They are high quality, very sensitive with high signal to noise ratio, lauded for nature recording use cases. They can be bought assembled for…

comment by hcfman · 2024-03-03 · in ShotSpotter: listening in on the neighborhood

Which is why we need public counter validation. ( https://github.com/hcfman/sbts-aru ) :-)

comment by hcfman · 2024-03-03 · in ShotSpotter: listening in on the neighborhood

…problem by the sort of people in this forum and you can use the software I developed last year ( https://github.com/hcfman/sbts-aru ) to do so. That software sets the time on the Raspberry Pi to have less than 1 microsecond of error, which…

comment by hcfman · 2024-03-03 · in ShotSpotter: listening in on the neighborhood

…Pi zero with a 7 euro GPS. It can also run portably on batteries. Here are relevant links: https://github.com/hcfman/sbts-aru https://hackaday.com/2023/12/30/localizing-fireworks-launche... https://medium.com/@kim_94237/tdoa-sound-localizat…

comment by hcfman · 2024-03-03 · in ShotSpotter: listening in on the neighborhood

…know, I'm curious and quite proud of this part :) Oh and here are the other relevant direct links: https://github.com/hcfman/sbts-aru https://medium.com/@kim_94237/tdoa-sound-localization-with-t...

comment by hcfman · 2024-02-22 · in Localizing Fireworks Launches with a Raspberry Pi

…https://medium.com/@kim_94237/tdoa-sound-localization-with-t... https://github.com/hcfman/sbts-aru

comment by hcfman · 2024-02-22 · in ASML dethrones Applied Materials, becomes largest fab tool maker

My sound localizing Raspberry Pi installs a resilient base system as part of its install. https://github.com/hcfman/sbts-aru https://hackaday.com/2023/12/30/localizing-fireworks-launche... With one command it for all Pi’s for both Raspbian…

comment by hcfman · 2024-02-17 · in Considerations for a long-running Raspberry Pi

…able to perform local real-time elephant sound event detection to use with real time localization. https://github.com/hcfman/sbts-aru

comment by hcfman · 2024-01-03 · in Forest Elephants and Infrasound

I have a sound localization project that can help with that https://github.com/hcfman/sbts-aru You need to be able to hear the sound from three or more recorders. And normally localization is better within the polygon of microphones but…

comment by hcfman · 2023-12-26 · in Colorado wolf reintroduction to move forward

…may I take the liberty of introducing my new raspberry pi sound localizing audio recorder. https://github.com/hcfman/sbts-aru It installs with one command on all Raspberry Pi versions and synchronizes the system time to less than 1…

comment by hcfman · 2023-12-06 · in Acoustic Location and Sound Mirrors (2004)

…GPS, a cheap USB sound card and a mic and get recording with this Pi based Acoustic Recording Unit https://github.com/hcfman/sbts-aru And while you are at it, install 3x or more and localize where the birds are.

comment by hcfman · 2023-11-16 · in AI tool helps ecologists monitor rare birds through their songs

Sound localizing sound events. I build a project for it: https://github.com/hcfman/sbts-aru

comment by hcfman · 2023-11-12 · in Ask HN: What hobbies are you picking up?

…sub microsecond time accuracy. Then I put the two together and made a raspberry pi sound localizer. https://github.com/hcfman/sbts-aru

comment by hcfman · 2023-11-10 · in Ask HN: Coolest thing you learned in 2023?

…a carpets even when some of the nodes are almost 5 away. For those interested, here is the project: https://github.com/hcfman/sbts-aru

comment by hcfman · 2023-11-07 · in Ask HN: What are you passionate about at the moment?

…localization project and perform very accurate localization and know for sure in future incidents: https://github.com/hcfman/sbts-aru Nice to see you using sound calculations if your analysis. I don't know how hot it was at the time but a…

comment by hcfman · 2023-10-23 · in Geolocating WSJ's "Failed Rocket"

…let me know what you think. If you need to communicate with me, I can be contacted on wildlabs.net. https://github.com/hcfman/sbts-aru Kim Hendrikse (Now to move onto my next project, which is adding the deepfaune AI model to make a wolf,…

comment by hcfman · 2023-10-11 · in Microsecond Accurate Network Time Protocol Server with Raspberry Pi and PPS GPS

Interesting! Especially cause in my new sound localizing raspberrypi project ( https://github.com/hcfman/sbts-aru ), generalplus USB microphones are one of two I’m recommending here. (That and cm108 based ones). The generalplus ones have a…

comment by hcfman · 2023-10-11 · in SunPlus: The biggest chip company you've never heard of (2010)

Soon hopefully from my raspyberry pi stratum 1 time server project :) https://github.com/hcfman/sbts-aru

comment by hcfman · 2023-10-06 · in Where does my computer get the time from?

…detector to match my sound localization platform that is almost ready for release (Within a month - https://github.com/hcfman/sbts-aru ) The idea is to write a pipeline that can determine the start time of an impulse sound, typically…

comment by hcfman · 2023-09-04 · in Ask HN: Computing Side Project Ideas?